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...

20 Commits

Author SHA1 Message Date
wdenk
4a6fd34b26 * Patch by Lutz Dennig, 10 Apr 2003:
Update for R360MPI board

* Add new meaning to "autostart" environment variable:
  If set to "no", a standalone image passed to the
  "bootm" command will be copied to the load address
  (and eventually uncompressed), but NOT be started.
  This can be used to load and uncompress arbitrary
  data.

* Set max brightness for MN11236 displays on TRAB board
2003-04-12 23:38:12 +00:00
stroese
69f8f827d5 Patch from Stefan Roese. 2003-04-10 13:30:28 +00:00
stroese
759a51b4f3 Changed DHCP client to use ip address from server option field #54 from the OFFER-paket in the server option field #54 in the REQUEST-paket. This fixes a problem using a Windows 2000 DHCP server, where the DHCP-server is not the TFTP-server. 2003-04-10 13:26:44 +00:00
wdenk
d126bfbdbd Add support for TQM862L modules 2003-04-10 11:18:18 +00:00
wdenk
60fbe25424 Prepare for 0.3.0 release
* Add support for Purple Board (MIPS64 5Kc)

* Add support for MIPS64 5Kc CPUs
2003-04-08 23:25:21 +00:00
wdenk
3e38691e8f * Patch by Arun Dharankar, 4 Apr 2003:
Add IDMA example code (tested on 8260 only)

* Add support for Purple Board (MIPS64 5Kc)

* Add support for MIPS64 5Kc CPUs

* Fix missing setting of "loadaddr" and "bootfile" on ARM and MIPS

* Patch by Denis Peter, 04 Apr 2003:
  - update MIP405-4 board

* Patches by Denis Peter, 03 April 2003:
  - fix PCI IRQs on MPL boards
  - fix two more un-relocated pointer problems

* Fix behaviour of "run" command:
  - print error message iv variable does not exist
  - terminate processing of arguments in case of error

* Patches by Peter Figuli, 10 Mar 2003
  - Add support for BTUART on PXA platform
  - Add support for WEP EP250 (PXA) board

* Fix flash problems on INCA-IP; add tool to allow bruning images  to
  flash using a BDI2000

* Implement fix for I2C Edge Conditions problem for all boards that
  use the bit-banging driver (common/soft_i2c.c)

* Add patches by Robert Schwebel, 31 Mar 2003:
  - csb226 board: bring in sync with innokom/memsetup.S
  - csb226 board: fix MDREFR handling
  - misc doc fixes / extensions
  - innokom board: cleanup, MDREFR fix in memsetup.S, config update
  - add BOOT_PROGRESS to armlinux.c
2003-04-05 00:53:31 +00:00
stroese
36c05a80ec Patch from Stefan Roese. 2003-04-04 16:55:30 +00:00
stroese
afcc4a7404 Changed CPCI405 to use CTS instead of DSR on PPC405 UART1. 2003-04-04 16:52:57 +00:00
stroese
9e7d5ebea9 U-Boot version environment variable "ver" added (CONFIG_VERSION_VARIABLE). 2003-04-04 16:48:07 +00:00
stroese
baa3d528fe Changed PPC405GPr version from A to B. 2003-04-04 16:00:33 +00:00
stroese
c1551ea817 U-Boot version environment variable "ver" added (CONFIG_VERSION_VARIABLE). 2003-04-04 15:53:41 +00:00
stroese
0587597ca3 U-Boot version environment variable "ver" added (CONFIG_VERSION_VARIABLE). 2003-04-04 15:44:49 +00:00
wdenk
0db5bca807 * Patch by Martin Winistoerfer, 23 Mar 2003
- Add port to MPC555/556 microcontrollers
  - Add support for cmi customer board with
    Intel 28F128J3A, 28F320J3A or 28F640J3A flash.

* Patch by Rick Bronson, 28 Mar 2003:
  - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
wdenk
85ec0bcc1b * Patch by Arun Dharankar, 24 Mar 2003:
- add threads / scheduler example code

* Add patches by Robert Schwebel, 31 Mar 2003:
  - add ctrl-c support for kermit download
  - align bdinfo output on ARM

* Add CPU ID, version, and clock speed for INCA-IP
2003-03-31 16:34:49 +00:00
wdenk
506f044131 Patches by Dave Ellis, 18 Mar 2003 for SXNI855T board:
- fix SRAM and SDRAM memory sizing
- add status LED support
- add MAC address for second (SCC1) ethernet port

Update default environment for TQM8260 board
2003-03-28 14:40:36 +00:00
wdenk
cdd8a0f151 Fix MIPS build problem 2003-03-27 18:00:16 +00:00
wdenk
c021880ac5 * Add support for MIPS32 4Kc CPUs
* Add support for INCA-IP Board
2003-03-27 12:09:35 +00:00
wdenk
ac6dbb85b7 Make compile clean, fix the usual small problems. 2003-03-26 11:42:53 +00:00
stroese
2a46cabd77 esd PCI405 updated. 2003-03-26 10:36:12 +00:00
wdenk
dc7c9a1a52 * Patch by Rick Bronson, 16 Mar 2003:
Add support for Atmel AT91RM9200DK w/NAND

* Patches by Robert Schwebel, 19 Mar 2003:
  - use arm-linux-gcc as default compiler for ARM
  - fix i2c fixup code
  - fix missing baudrate setting
  - added $loadaddr / CFG_LOAD_ADDR support to loadb
  - moved "ignoring trailing characters" _before_ u-boot wants to
    print out diagnostics messages; removes bogus characters at the
    end of transmission

* Patch by John Zhan, 18 Mar 2003:
  Add support for SinoVee Microsystems SC8xx boards

* Patch by Rolf Offermanns, 21 Mar 2003:
  ported the dnp1110 related changes from the current armboot cvs to
  current u-boot cvs. smc91111 does not work. problem marked in
  smc91111.c, grep for "FIXME".

* Patch by Brian Auld, 25 Mar 2003:
  Add support for STM flash chips on ebony board

 * Add PCI support for MPC8250 Boards (PM825 module)

 * Patch by Stefan Roese, 25 Mar 2003:
2003-03-26 06:55:25 +00:00
189 changed files with 22322 additions and 1040 deletions

126
CHANGELOG
View File

@@ -1,7 +1,121 @@
======================================================================
Changes since U-Boot 0.2.2:
Changes since U-Boot 0.3.0:
======================================================================
* Patch by Lutz Dennig, 10 Apr 2003:
Update for R360MPI board
* Add new meaning to "autostart" environment variable:
If set to "no", a standalone image passed to the
"bootm" command will be copied to the load address
(and eventually uncompressed), but NOT be started.
This can be used to load and uncompress arbitrary
data.
* Patch by Stefan Roese, 10 Apr 2003:
Changed DHCP client to use IP address from server option field #54
from the OFFER packet in the server option field #54 in the REQUEST
packet. This fixes a problem using a Windows 2000 DHCP server,
where the DHCP-server is not the TFTP-server.
* Set max brightness for MN11236 displays on TRAB board
* Add support for TQM862L modules
======================================================================
Changes for U-Boot 0.3.0:
======================================================================
* Patch by Arun Dharankar, 4 Apr 2003:
Add IDMA example code (tested on 8260 only)
* Add support for Purple Board (MIPS64 5Kc)
* Add support for MIPS64 5Kc CPUs
* Fix missing setting of "loadaddr" and "bootfile" on ARM and MIPS
* Patch by Denis Peter, 04 Apr 2003:
- update MIP405-4 board
* Patch by Stefan Roese, 4 Apr 2003:
- U-Boot version environment variable "ver" added
(CONFIG_VERSION_VARIABLE).
- Changed PPC405GPr version from A to B.
- Changed CPCI405 to use CTS instead of DSR on PPC405 UART1.
* Patches by Denis Peter, 03 April 2003:
- fix PCI IRQs on MPL boards
- fix two more un-relocated pointer problems
* Fix behaviour of "run" command:
- print error message iv variable does not exist
- terminate processing of arguments in case of error
* Patches by Peter Figuli, 10 Mar 2003
- Add support for BTUART on PXA platform
- Add support for WEP EP250 (PXA) board
* Fix flash problems on INCA-IP; add tool to allow bruning images to
flash using a BDI2000
* Implement fix for I2C Edge Conditions problem for all boards that
use the bit-banging driver (common/soft_i2c.c)
* Patch by Martin Winistoerfer, 23 Mar 2003
- Add port to MPC555/556 microcontrollers
- Add support for cmi customer board with
Intel 28F128J3A, 28F320J3A or 28F640J3A flash.
* Patch by Rick Bronson, 28 Mar 2003:
- fix common/cmd_nand.c
* Patch by Arun Dharankar, 24 Mar 2003:
- add threads / scheduler example code
* Add patches by Robert Schwebel, 31 Mar 2003:
- add ctrl-c support for kermit download
- align bdinfo output on ARM
- csb226 board: bring in sync with innokom/memsetup.S
- csb226 board: fix MDREFR handling
- misc doc fixes / extensions
- innokom board: cleanup, MDREFR fix in memsetup.S, config update
- add BOOT_PROGRESS to armlinux.c
* Add CPU ID, version, and clock speed for INCA-IP
* Patches by Dave Ellis, 18 Mar 2003 for SXNI855T board:
- fix SRAM and SDRAM memory sizing
- add status LED support
- add MAC address for second (SCC1) ethernet port
* Update default environment for TQM8260 board
* Patch by Rick Bronson, 16 Mar 2003:
- Add NAND flash support for reading, writing, and erasing NAND
flash (certain forms of which are called SmartMedia).
- Add support for Atmel AT91RM9200DK ARM920T based development kit.
* Patches by Robert Schwebel, 19 Mar 2003:
- use arm-linux-gcc as default compiler for ARM
- fix i2c fixup code
- fix missing baudrate setting
- added $loadaddr / CFG_LOAD_ADDR support to loadb
- moved "ignoring trailing characters" _before_ u-boot wants to
print out diagnostics messages; removes bogus characters at the
end of transmission
* Patch by John Zhan, 18 Mar 2003:
Add support for SinoVee Microsystems SC8xx boards
* Patch by Rolf Offermanns, 21 Mar 2003:
ported the dnp1110 related changes from the current armboot cvs to
current u-boot cvs. smc91111 does not work. problem marked in
smc91111.c, grep for "FIXME".
* Patch by Brian Auld, 25 Mar 2003:
Add support for STM flash chips on ebony board
* Add PCI support for MPC8250 Boards (PM825 module)
* Patch by Stefan Roese, 25 Mar 2003:
@@ -13,6 +127,12 @@ Changes since U-Boot 0.2.2:
to existing PPC405GP designs.
- Clip udiv to 5 bits on PPC405 (serial.c).
* Extend INCAIP board support:
- add automatic RAM size detection
- add "bdinfo" command
- pass flash address and size to Linux kernel
- switch to 150 MHz clock
* Avoid flicker on the TRAB's VFD by synchronizing the enable with
the HSYNC/VSYNC. Requires new CPLD code (Version 101 for Rev. 100
boards, version 153 for Rev. 200 boards).
@@ -156,6 +276,10 @@ Changes since U-Boot 0.2.2:
* Patch by Stefan Roese, 10 Feb 2003:
Add support for 4MB and 128MB onboard SDRAM (cpu/ppc4xx/sdram.c)
* Add support for MIPS32 4Kc CPUs
* Add support for INCA-IP Board
======================================================================
Changes for U-Boot 0.2.2:
======================================================================

20
CREDITS
View File

@@ -46,6 +46,10 @@ N: Raphael Bossek
E: raphael.bossek@solutions4linux.de
D: 8xxrom-0.3.0
N: Rick Bronson
E: rick@efn.org
D: Atmel AT91RM9200DK and NAND support
N: David Brown
E: DBrown03@harris.com
D: Extensions to 8xxrom-0.3.0
@@ -66,6 +70,10 @@ N: Magnus Damm
E: eramdam@kieray1.p.y.ki.era.ericsson.se
D: 8xxrom
N: Arun Dharankar
E: ADharankar@ATTBI.Com
D: threads / scheduler example code
N: Kári Davíðsson
E: kd@flaga.is
D: FLAGA DM Support
@@ -96,6 +104,10 @@ E: wg@denx.de
D: Support for Interphase 4539 T1/E1/J1 PMC, PN62, CCM, SCM boards
W: www.denx.de
N: Peter Figuli
E: peposh@etc.sk
D: Support for WEP EP250 (PXA) board
N: Thomas Frieden
E: ThomasF@hyperion-entertainment.com
D: Support for AmigaOne
@@ -258,10 +270,18 @@ N: David Updegraff
E: dave@cray.com
D: Port to Cray L1 board; DHCP vendor extensions
N: Martin Winistoerfer
E: martinwinistoerfer@gmx.ch
D: Port to MPC555/556 microcontrollers and support for cmi board
N: Christian Vejlbo
E: christian.vejlbo@tellabs.com
D: FADS860T ethernet support
N: John Zhan
E: zhanz@sinovee.com
D: Support for SinoVee Microsystems SC8xx SBC
N: Alex Zuepke
E: azu@sysgo.de
D: Overall improvements on StrongARM, ARM720TDMI; Support for Tuxscreen; initial PCMCIA support for ARM

View File

@@ -32,6 +32,10 @@ Jerry Van Baren <vanbaren_gerald@si.com>
sacsng MPC8260
Rick Bronson <rick@efn.org>
AT91RM9200DK at91rm9200
Oliver Brown <obrown@adventnetworks.com>
gw8260 MPC8260
@@ -197,6 +201,10 @@ Rune Torgersen <runet@innovsys.com>
MPC8266ADS MPC8266
John Zhan <zhanz@sinovee.com>
svm_sc8xx MPC8xx
-------------------------------------------------------------------------
Unknown / orphaned boards:
@@ -233,6 +241,10 @@ Unknown / orphaned boards:
# Board CPU #
#########################################################################
Peter Figuli <peposh@etc.sk>
wepep250 xscale
Marius Gröger <mag@sysgo.de>
impa7 ARM720T (EP7211)
@@ -288,6 +300,7 @@ Daniel Engstr
Wolfgang Denk <wd@denx.de>
incaip MIPS32 4Kc
purple MIPS64 5Kc
#########################################################################
# End of MAINTAINERS list #

41
MAKEALL
View File

@@ -10,6 +10,14 @@ fi
LIST=""
#########################################################################
## MPC5xx Systems
#########################################################################
LIST_5xx=" \
cmi_mpc5xx \
"
#########################################################################
## MPC8xx Systems
#########################################################################
@@ -25,9 +33,10 @@ LIST_8xx=" \
lwmon MBX MBX860T MHPC \
MVS1 NETVIA NX823 pcu_e \
R360MPI RPXClassic RPXlite RRvision \
SM850 SPD823TS SXNI855T TOP860 \
TQM823L TQM823L_LCD TQM850L TQM855L \
TQM860L TQM860L_FEC TTTech v37 \
SM850 SPD823TS svm_sc8xx SXNI855T \
TOP860 TQM823L TQM823L_LCD TQM850L \
TQM855L TQM860L TQM860L_FEC TTTech \
v37 \
"
#########################################################################
@@ -76,36 +85,48 @@ LIST_7xx=" \
BAB7xx ELPPC \
"
LIST_ppc="${LIST_8xx} ${LIST_824x} ${LIST_8260} \
${LIST_4xx} ${LIST_74xx} ${LIST_7xx}"
LIST_ppc="${LIST_5xx} ${LIST_8xx} \
${LIST_824x} ${LIST_8260} \
${LIST_4xx} \
${LIST_74xx} ${LIST_7xx}"
#########################################################################
## StrongARM Systems
#########################################################################
LIST_SA="lart shannon dnp1110"
LIST_SA="dnp1110 lart shannon"
#########################################################################
## ARM7 Systems
#########################################################################
LIST_ARM7="impa7 ep7312"
LIST_ARM7="ep7312 impa7"
#########################################################################
## ARM9 Systems
#########################################################################
LIST_ARM9="smdk2400 smdk2410 trab VCMA9"
LIST_ARM9="at91rm9200dk smdk2400 smdk2410 trab VCMA9"
#########################################################################
## Xscale Systems
#########################################################################
LIST_xscale="lubbock cradle csb226 innokom"
LIST_xscale="cradle csb226 innokom lubbock wepep250"
LIST_arm="${LIST_SA} ${LIST_ARM7} ${LIST_ARM9} ${LIST_xscale}"
#########################################################################
## MIPS 4Kc Systems
#########################################################################
LIST_mips4kc="incaip"
LIST_mips5kc="purple"
LIST_mips="${LIST_mips4kc} ${LIST_mips5kc}"
#----- for now, just run PPC by default -----
[ $# = 0 ] && set $LIST_ppc
@@ -127,7 +148,7 @@ build_target() {
for arg in $@
do
case "$arg" in
8xx|824x|8260|4xx|7xx|74xx|SA|ARM7|ARM9|ppc|arm|xscale)
5xx|8xx|824x|8260|4xx|7xx|74xx|SA|ARM7|ARM9|ppc|arm|xscale|mips)
for target in `eval echo '$LIST_'${arg}`
do
build_target ${target}

View File

@@ -57,7 +57,7 @@ ifeq ($(ARCH),ppc)
CROSS_COMPILE = ppc_8xx-
endif
ifeq ($(ARCH),arm)
CROSS_COMPILE = arm_920TDI-
CROSS_COMPILE = arm-linux-
endif
ifeq ($(ARCH),i386)
#CROSS_COMPILE = i386-elf-
@@ -168,6 +168,14 @@ unconfig:
#========================================================================
# PowerPC
#========================================================================
#########################################################################
## MPC5xx Systems
#########################################################################
cmi_mpc5xx_config: unconfig
@./mkconfig $(@:_config=) ppc mpc5xx cmi
#########################################################################
## MPC8xx Systems
#########################################################################
@@ -314,6 +322,10 @@ SM850_config : unconfig
SPD823TS_config: unconfig
@./mkconfig $(@:_config=) ppc mpc8xx spd8xx
svm_sc8xx_config: unconfig
@ >include/config.h
@./mkconfig $(@:_config=) ppc mpc8xx svm_sc8xx
SXNI855T_config: unconfig
@./mkconfig $(@:_config=) ppc mpc8xx sixnet
@@ -341,15 +353,12 @@ TQM850L_80MHz_config \
TQM855L_config \
TQM855L_66MHz_config \
TQM855L_80MHz_config \
TQM855L_FEC_config \
TQM855L_FEC_66MHz_config \
TQM855L_FEC_80MHz_config \
TQM860L_config \
TQM860L_66MHz_config \
TQM860L_80MHz_config \
TQM860L_FEC_config \
TQM860L_FEC_66MHz_config \
TQM860L_FEC_80MHz_config: unconfig
TQM862L_config \
TQM862L_66MHz_config \
TQM862L_80MHz_config: unconfig
@ >include/config.h
@[ -z "$(findstring _FEC,$@)" ] || \
{ echo "#define CONFIG_FEC_ENET" >>include/config.h ; \
@@ -624,6 +633,9 @@ ELPPC_config: unconfig
## StrongARM Systems
#########################################################################
at91rm9200dk_config : unconfig
@./mkconfig $(@:_config=) arm at91rm9200 at91rm9200dk
lart_config : unconfig
@./mkconfig $(@:_config=) arm sa1100 lart
@@ -683,6 +695,9 @@ innokom_config : unconfig
lubbock_config : unconfig
@./mkconfig $(@:_config=) arm xscale lubbock
wepep250_config : unconfig
@./mkconfig $(@:_config=) arm xscale wepep250
#========================================================================
# i386
#========================================================================
@@ -702,14 +717,20 @@ sc520_cdp_config : unconfig
incaip_config : unconfig
@./mkconfig $(@:_config=) mips mips incaip
purple_config : unconfig
@./mkconfig $(@:_config=) mips mips purple
#########################################################################
#########################################################################
clean:
find . -type f \
\( -name 'core' -o -name '*.bak' -o -name '*~' \
-o -name '*.o' -o -name '*.a' \) -print \
| xargs rm -f
rm -f examples/hello_world examples/timer examples/eepro100_eeprom
rm -f examples/hello_world examples/timer \
examples/eepro100_eeprom examples/sched \
examples/mem_to_mem_idma2intr
rm -f tools/img2srec tools/mkimage tools/envcrc tools/gen_eth_addr
rm -f tools/easylogo/easylogo tools/bmp_logo
rm -f tools/gdb/astest tools/gdb/gdbcont tools/gdb/gdbsend
@@ -722,9 +743,9 @@ clobber: clean
| xargs rm -f
rm -f $(OBJS) *.bak tags TAGS
rm -fr *.*~
rm -f u-boot u-boot.bin u-boot.elf u-boot.srec u-boot.map System.map
rm -f u-boot u-boot.bin u-boot.srec u-boot.map System.map
rm -f tools/crc32.c tools/environment.c tools/env/crc32.c
rm -f cpu/mpc824x/bedbug_603e.c
rm -f tools/inca-swap-bytes cpu/mpc824x/bedbug_603e.c
rm -f include/asm/arch include/asm
mrproper \

90
README
View File

@@ -140,6 +140,7 @@ Directory Hierarchy:
- tools Tools to build S-Record or U-Boot images, etc.
- cpu/74xx_7xx Files specific to Motorola MPC74xx and 7xx CPUs
- cpu/mpc5xx Files specific to Motorola MPC5xx CPUs
- cpu/mpc8xx Files specific to Motorola MPC8xx CPUs
- cpu/mpc824x Files specific to Motorola MPC824x CPUs
- cpu/mpc8260 Files specific to Motorola MPC8260 CPU
@@ -151,6 +152,7 @@ Directory Hierarchy:
Files specific to RPXClassic boards
- board/RPXlite Files specific to RPXlite boards
- board/c2mon Files specific to c2mon boards
- board/cmi Files specific to cmi boards
- board/cogent Files specific to Cogent boards
(need further configuration)
Files specific to CPCIISER4 boards
@@ -292,6 +294,7 @@ The following options need to be configured:
PowerPC based CPUs:
-------------------
CONFIG_MPC823, CONFIG_MPC850, CONFIG_MPC855, CONFIG_MPC860
or CONFIG_MPC5xx
or CONFIG_MPC824X, CONFIG_MPC8260
or CONFIG_IOP480
or CONFIG_405GP
@@ -340,7 +343,7 @@ The following options need to be configured:
CONFIG_GTH, CONFIG_RPXClassic, CONFIG_rsdproto,
CONFIG_IAD210, CONFIG_RPXlite, CONFIG_sbc8260,
CONFIG_EBONY, CONFIG_sacsng, CONFIG_FPS860L,
CONFIG_V37, CONFIG_ELPT860
CONFIG_V37, CONFIG_ELPT860, CONFIG_CMI
ARM based boards:
-----------------
@@ -617,6 +620,13 @@ The following options need to be configured:
SIU Watchdog feature is enabled in the SYPCR
register.
- U-Boot Version:
CONFIG_VERSION_VARIABLE
If this variable is defined, an environment variable
named "ver" is created by U-Boot showing the U-Boot
version as printed by the "version" command.
This variable is readonly.
- Real-Time Clock:
When CFG_CMD_DATE is selected, the type of the RTC
@@ -730,7 +740,7 @@ The following options need to be configured:
16,7 Mill (24bit) 315 318 31b
(i.e. setenv videomode 317; saveenv; reset;)
CONFIG_VIDEO_SED13806
CONFIG_VIDEO_SED13806
Enable Epson SED13806 driver. This driver supports 8bpp
and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP
or CONFIG_VIDEO_SED13806_16BPP
@@ -1245,7 +1255,7 @@ The following options need to be configured:
Modem Support:
--------------
[so far only for SMDK2400 board]
[so far only for SMDK2400 and TRAB boards]
- Modem support endable:
CONFIG_MODEM_SUPPORT
@@ -1452,7 +1462,7 @@ following configurations:
These settings describe a second storage area used to hold
a redundand copy of the environment data, so that there is
a valid backup copy in case there is a power failur during
a valid backup copy in case there is a power failure during
a "saveenv" operation.
BE CAREFUL! Any changes to the flash layout, and some changes to the
@@ -1532,23 +1542,20 @@ has been relocated to RAM and a RAM copy of the environment has been
created; also, when using EEPROM you will have to use getenv_r()
until then to read environment variables.
The environment is now protected by a CRC32 checksum. Before the
monitor is relocated into RAM, as a result of a bad CRC you will be
working with the compiled-in default environment - *silently*!!!
[This is necessary, because the first environment variable we need is
the "baudrate" setting for the console - if we have a bad CRC, we
don't have any device yet where we could complain.]
The environment is protected by a CRC32 checksum. Before the monitor
is relocated into RAM, as a result of a bad CRC you will be working
with the compiled-in default environment - *silently*!!! [This is
necessary, because the first environment variable we need is the
"baudrate" setting for the console - if we have a bad CRC, we don't
have any device yet where we could complain.]
Note: once the monitor has been relocated, then it will complain if
the default environment is used; a new CRC is computed as soon as you
use the "setenv" command to modify / delete / add any environment
variable [even when you try to delete a non-existing variable!].
Note2: you must edit your u-boot.lds file to reflect this
configuration.
use the "saveenv" command to store a valid environment.
Low Level (hardware related) configuration options:
---------------------------------------------------
- CFG_CACHELINE_SIZE:
Cache Line Size of the CPU.
@@ -1604,16 +1611,16 @@ Low Level (hardware related) configuration options:
- MPC824X: data cache
- PPC4xx: data cache
- CFG_INIT_DATA_OFFSET:
- CFG_GBL_DATA_OFFSET:
Offset of the initial data structure in the memory
area defined by CFG_INIT_RAM_ADDR. Usually
CFG_INIT_DATA_OFFSET is chosen such that the initial
CFG_GBL_DATA_OFFSET is chosen such that the initial
data is located at the end of the available space
(sometimes written as (CFG_INIT_RAM_END -
CFG_INIT_DATA_SIZE), and the initial stack is just
below that area (growing from (CFG_INIT_RAM_ADDR +
CFG_INIT_DATA_OFFSET) downward.
CFG_GBL_DATA_OFFSET) downward.
Note:
On the MPC824X (or other systems that use the data
@@ -1719,7 +1726,7 @@ configurations; the following names are supported:
FPS850L_config Sandpoint8240_config sbc8260_config
GENIETV_config TQM823L_config PIP405_config
GEN860T_config EBONY_config FPS860L_config
ELPT860_config
ELPT860_config cmi_mpc5xx_config
Note: for some board special configuration names may exist; check if
additional information is available from the board vendor; for
@@ -1770,14 +1777,21 @@ to port U-Boot to your hardware platform. To do this, follow these
steps:
1. Add a new configuration option for your board to the toplevel
"Makefile", using the existing entries as examples.
"Makefile" and to the "MAKEALL" script, using the existing
entries as examples. Note that here and at many other places
boards and other names are listed alphabetically sorted. Please
keep this order.
2. Create a new directory to hold your board specific code. Add any
files you need.
files you need. In your board directory, you will need at least
the "Makefile", a "<board>.c", "flash.c" and "u-boot.lds".
3. Create a new configuration file "include/configs/<board>.h" for
your board
3. If you're porting U-Boot to a new CPU, then also create a new
directory to hold your CPU specific code. Add any files you need.
4. Run "make config_name" with your new name.
4. Run "make <board>_config" with your new name.
5. Type "make", and you should get a working "u-boot.srec" file
to be installed on your target system.
6. Debug and solve any problems that might arise.
[Of course, this last step is much harder than it sounds.]
@@ -1904,6 +1918,12 @@ Some configuration options can be set using Environment Variables:
be automatically started (by internally calling
"bootm")
If set to "no", a standalone image passed to the
"bootm" command will be copied to the load address
(and eventually uncompressed), but NOT be started.
This can be used to load and uncompress arbitrary
data.
initrd_high - restrict positioning of initrd images:
If this variable is not set, initrd images will be
copied to the highest possible address in RAM; this
@@ -1928,7 +1948,7 @@ Some configuration options can be set using Environment Variables:
ipaddr - IP address; needed for tftpboot command
loadaddr - Default load address for commands like "bootp",
"rarpboot", "tftpboot" or "diskboot"
"rarpboot", "tftpboot", "loadb" or "diskboot"
loads_echo - see CONFIG_LOADS_ECHO
@@ -1966,6 +1986,13 @@ the board). U-Boot refuses to delete or overwrite these variables
once they have been set once.
Further special Environment Variables:
ver - Contains the U-Boot version string as printed
with the "version" command. This variable is
readonly (see CONFIG_VERSION_VARIABLE).
Please note that changes to some configuration parameters may take
only effect after the next boot (yes, that's just like Windoze :-).
@@ -2374,18 +2401,18 @@ U-Boot supports the following image types:
to boot over the network using BOOTP etc., where the boot
server provides just a single image file, but you want to get
for instance an OS kernel and a RAMDisk image.
"Multi-File Images" start with a list of image sizes, each
image size (in bytes) specified by an "uint32_t" in network
byte order. This list is terminated by an "(uint32_t)0".
Immediately after the terminating 0 follow the images, one by
one, all aligned on "uint32_t" boundaries (size rounded up to
a multiple of 4 bytes).
"Firmware Images" are binary images containing firmware (like
U-Boot or FPGA images) which usually will be programmed to
flash memory.
"Script files" are command sequences that will be executed by
U-Boot's command interpreter; this feature is especially
useful when you configure U-Boot to use a real shell (hush)
@@ -2480,6 +2507,17 @@ Hit 'q':
[q, b, e, ?] ## Application terminated, rc = 0x0
Minicom warning:
================
Over time, many people have reported problems when trying to used the
"minicom" terminal emulation program for serial download. I (wd)
consider minicom to be broken, and recommend not to use it. Under
Unix, I recommend to use CKermit for general purpose use (and
especially for kermit binary protocol download ("loadb" command), and
use "cu" for S-Record download ("loads" command).
NetBSD Notes:
=============

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@@ -0,0 +1,47 @@
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS := at91rm9200dk.o flash.o
SOBJS :=
$(LIB): $(OBJS) $(SOBJS)
$(AR) crv $@ $^
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
-include .depend
#########################################################################

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@@ -0,0 +1,105 @@
/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/arch/AT91RM9200.h>
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
int board_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
/* memory and cpu-speed are setup before relocation */
/* so we do _nothing_ here */
/* arch number of AT91RM9200DK-Board */
gd->bd->bi_arch_number = 251;
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
return 0;
}
int dram_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_dram[0].start = PHYS_SDRAM;
gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
return 0;
}
/*
* Disk On Chip (NAND) Millenium initialization.
* The NAND lives in the CS2* space
*/
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
extern void
nand_probe(ulong physadr);
#define AT91_SMARTMEDIA_BASE 0x40000000 /* physical address to access memory on NCS3 */
void
nand_init(void)
{
/* Setup Smart Media, fitst enable the address range of CS3 */
*AT91C_EBI_CSA |= AT91C_EBI_CS3A_SMC_SmartMedia;
/* set the bus interface characteristics based on
tDS Data Set up Time 30 - ns
tDH Data Hold Time 20 - ns
tALS ALE Set up Time 20 - ns
16ns at 60 MHz ~= 3 */
/*memory mapping structures */
#define SM_ID_RWH (5 << 28)
#define SM_RWH (1 << 28)
#define SM_RWS (0 << 24)
#define SM_TDF (1 << 8)
#define SM_NWS (3)
AT91C_BASE_SMC2->SMC2_CSR[3] = ( SM_RWH|SM_RWS | AT91C_SMC2_ACSS_STANDARD |
AT91C_SMC2_DBW_8 | SM_TDF |
AT91C_SMC2_WSEN | SM_NWS);
/* enable the SMOE line PC0=SMCE, A21=CLE, A22=ALE */
*AT91C_PIOC_ASR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | AT91C_PC3_BFBAA_SMWE;
*AT91C_PIOC_PDR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | AT91C_PC3_BFBAA_SMWE;
/* Configure PC2 as input (signal READY of the SmartMedia) */
*AT91C_PIOC_PER = AT91C_PC2_BFAVD; /* enable direct output enable */
*AT91C_PIOC_ODR = AT91C_PC2_BFAVD; /* disable output */
/* Configure PB1 as input (signal Card Detect of the SmartMedia) */
*AT91C_PIOB_PER = AT91C_PIO_PB1; /* enable direct output enable */
*AT91C_PIOB_ODR = AT91C_PIO_PB1; /* disable output */
if (*AT91C_PIOB_PDSR & AT91C_PIO_PB1)
printf ("No ");
printf ("SmartMedia card inserted\n");
printf("Probing at 0x%.8x\n", AT91_SMARTMEDIA_BASE);
nand_probe(AT91_SMARTMEDIA_BASE);
}
#endif

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@@ -0,0 +1,2 @@
TEXT_BASE = 0x21fa0000

397
board/at91rm9200dk/flash.c Normal file
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@@ -0,0 +1,397 @@
/*
* (C) Copyright 2002
* Lineo, Inc. <www.lineo.com>
* Bernhard Kuhn <bkuhn@lineo.com>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
ulong myflush(void);
#define FLASH_BANK_SIZE 0x200000 /* 2 MB */
#define MAIN_SECT_SIZE 0x10000 /* 64 KB */
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
#define CMD_READ_ARRAY 0x00F0
#define CMD_UNLOCK1 0x00AA
#define CMD_UNLOCK2 0x0055
#define CMD_ERASE_SETUP 0x0080
#define CMD_ERASE_CONFIRM 0x0030
#define CMD_PROGRAM 0x00A0
#define CMD_UNLOCK_BYPASS 0x0020
#define MEM_FLASH_ADDR1 (*(volatile u16 *)(CFG_FLASH_BASE + (0x00005555<<1)))
#define MEM_FLASH_ADDR2 (*(volatile u16 *)(CFG_FLASH_BASE + (0x00002AAA<<1)))
#define BIT_ERASE_DONE 0x0080
#define BIT_RDY_MASK 0x0080
#define BIT_PROGRAM_ERROR 0x0020
#define BIT_TIMEOUT 0x80000000 /* our flag */
#define READY 1
#define ERR 2
#define TMO 4
/*-----------------------------------------------------------------------
*/
ulong flash_init(void)
{
int i, j;
ulong size = 0;
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++)
{
ulong flashbase = 0;
flash_info[i].flash_id =
(ATM_MANUFACT & FLASH_VENDMASK) |
(ATM_ID_BV1614 & FLASH_TYPEMASK);
flash_info[i].size = FLASH_BANK_SIZE;
flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
if (i == 0)
flashbase = PHYS_FLASH_1;
else
panic("configured to many flash banks!\n");
for (j = 0; j < flash_info[i].sector_count; j++)
{
if (j <= 9)
{
/* 1st to 8th are 8 KB */
if (j <= 7)
{
flash_info[i].start[j] = flashbase + j*0x2000;
}
/* 9th and 10th are both 32 KB */
if ((j == 8) || (j == 9))
{
flash_info[i].start[j] = flashbase + 0x10000 + (j-8)*0x8000;
}
}
else
{
flash_info[i].start[j] = flashbase + (j-8)*MAIN_SECT_SIZE;
}
}
size += flash_info[i].size;
}
flash_protect(FLAG_PROTECT_SET,
CFG_FLASH_BASE,
CFG_ENV_ADDR - 1,
&flash_info[0]);
flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
&flash_info[0]);
return size;
}
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t *info)
{
int i;
switch (info->flash_id & FLASH_VENDMASK)
{
case (ATM_MANUFACT & FLASH_VENDMASK):
printf("Atmel: ");
break;
default:
printf("Unknown Vendor ");
break;
}
switch (info->flash_id & FLASH_TYPEMASK)
{
case (ATM_ID_BV1614 & FLASH_TYPEMASK):
printf("AT49BV1614 (16Mbit)\n");
break;
default:
printf("Unknown Chip Type\n");
goto Done;
break;
}
printf(" Size: %ld MB in %d Sectors\n",
info->size >> 20, info->sector_count);
printf(" Sector Start Addresses:");
for (i = 0; i < info->sector_count; i++)
{
if ((i % 5) == 0)
{
printf ("\n ");
}
printf (" %08lX%s", info->start[i],
info->protect[i] ? " (RO)" : " ");
}
printf ("\n");
Done:
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
ulong result;
int iflag, cflag, prot, sect;
int rc = ERR_OK;
int chip1;
/* first look for protection bits */
if (info->flash_id == FLASH_UNKNOWN)
return ERR_UNKNOWN_FLASH_TYPE;
if ((s_first < 0) || (s_first > s_last)) {
return ERR_INVAL;
}
if ((info->flash_id & FLASH_VENDMASK) !=
(ATM_MANUFACT & FLASH_VENDMASK)) {
return ERR_UNKNOWN_FLASH_VENDOR;
}
prot = 0;
for (sect=s_first; sect<=s_last; ++sect) {
if (info->protect[sect]) {
prot++;
}
}
if (prot)
return ERR_PROTECTED;
/*
* Disable interrupts which might cause a timeout
* here. Remember that our exception vectors are
* at address 0 in the flash, and we don't want a
* (ticker) exception to happen while the flash
* chip is in programming mode.
*/
cflag = icache_status();
icache_disable();
iflag = disable_interrupts();
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last && !ctrlc(); sect++)
{
printf("Erasing sector %2d ... ", sect);
/* arm simple, non interrupt dependent timer */
reset_timer_masked();
if (info->protect[sect] == 0)
{ /* not protected */
volatile u16 *addr = (volatile u16 *)(info->start[sect]);
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
*addr = CMD_ERASE_CONFIRM;
/* wait until flash is ready */
chip1 = 0;
do
{
result = *addr;
/* check timeout */
if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
{
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
chip1 = TMO;
break;
}
if (!chip1 && (result & 0xFFFF) & BIT_ERASE_DONE)
chip1 = READY;
} while (!chip1);
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
if (chip1 == ERR)
{
rc = ERR_PROG_ERROR;
goto outahere;
}
if (chip1 == TMO)
{
rc = ERR_TIMOUT;
goto outahere;
}
printf("ok.\n");
}
else /* it was protected */
{
printf("protected!\n");
}
}
if (ctrlc())
printf("User Interrupt!\n");
outahere:
/* allow flash to settle - wait 10 ms */
udelay_masked(10000);
if (iflag)
enable_interrupts();
if (cflag)
icache_enable();
return rc;
}
/*-----------------------------------------------------------------------
* Copy memory to flash
*/
volatile static int write_word (flash_info_t *info, ulong dest, ulong data)
{
volatile u16 *addr = (volatile u16 *)dest;
ulong result;
int rc = ERR_OK;
int cflag, iflag;
int chip1;
/*
* Check if Flash is (sufficiently) erased
*/
result = *addr;
if ((result & data) != data)
return ERR_NOT_ERASED;
/*
* Disable interrupts which might cause a timeout
* here. Remember that our exception vectors are
* at address 0 in the flash, and we don't want a
* (ticker) exception to happen while the flash
* chip is in programming mode.
*/
cflag = icache_status();
icache_disable();
iflag = disable_interrupts();
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
MEM_FLASH_ADDR1 = CMD_PROGRAM;
*addr = data;
/* arm simple, non interrupt dependent timer */
reset_timer_masked();
/* wait until flash is ready */
chip1 = 0;
do
{
result = *addr;
/* check timeout */
if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
{
chip1 = ERR | TMO;
break;
}
if (!chip1 && ((result & 0x80) == (data & 0x80)))
chip1 = READY;
} while (!chip1);
*addr = CMD_READ_ARRAY;
if (chip1 == ERR || *addr != data)
rc = ERR_PROG_ERROR;
if (iflag)
enable_interrupts();
if (cflag)
icache_enable();
return rc;
}
/*-----------------------------------------------------------------------
* Copy memory to flash.
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
ulong wp, data;
int rc;
if(addr & 1) {
printf("unaligned destination not supported\n");
return ERR_ALIGN;
};
if((int)src & 1) {
printf("unaligned source not supported\n");
return ERR_ALIGN;
};
wp = addr;
while (cnt >= 2) {
data = *((volatile u16*)src);
if ((rc = write_word(info, wp, data)) != 0) {
return (rc);
}
src += 2;
wp += 2;
cnt -= 2;
}
if(cnt == 1) {
data = (*((volatile u8*)src)) | (*((volatile u8*)(wp+1)) << 8);
if ((rc = write_word(info, wp, data)) != 0) {
return (rc);
}
src += 1;
wp += 1;
cnt -= 1;
};
return ERR_OK;
}

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@@ -0,0 +1,54 @@
/*
* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
/*OUTPUT_FORMAT("elf32-arm", "elf32-arm", "elf32-arm")*/
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
. = 0x00000000;
. = ALIGN(4);
.text :
{
cpu/at91rm9200/start.o (.text)
*(.text)
}
. = ALIGN(4);
.rodata : { *(.rodata) }
. = ALIGN(4);
.data : { *(.data) }
. = ALIGN(4);
.got : { *(.got) }
armboot_end_data = .;
. = ALIGN(4);
.bss : { *(.bss) }
armboot_end = .;
}

47
board/cmi/Makefile Normal file
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@@ -0,0 +1,47 @@
#
# (C) Copyright 2001 Wolfgang Denk, DENX Software Engineering, wd@denx.de
#
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS := flash.o cmi.o
SOBJS :=
$(LIB): $(OBJS)
$(AR) crv $@ $^
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
-include .depend
#########################################################################

73
board/cmi/cmi.c Normal file
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@@ -0,0 +1,73 @@
/*
* (C) Copyright 2003
* Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* File: cmi.c
*
* Discription: For generic board specific functions
*
*/
#include <common.h>
#include <mpc5xx.h>
#define SRAM_SIZE 1024000L /* 1M RAM available*/
#if defined(__APPLE__)
/* Leading underscore on symbols */
# define SYM_CHAR "_"
#else /* No leading character on symbols */
# define SYM_CHAR
#endif
/*
* Macros to generate global absolutes.
*/
#define GEN_SYMNAME(str) SYM_CHAR #str
#define GEN_VALUE(str) #str
#define GEN_ABS(name, value) \
asm (".globl " GEN_SYMNAME(name)); \
asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
/*
* Check the board
*/
int checkboard(void)
{
puts ("Board: ### No HW ID - assuming CMI board\n");
return (0);
}
/*
* Get RAM size.
*/
long int initdram(int board_type)
{
return (SRAM_SIZE); /* We currently have a static size adapted for cmi board. */
}
/*
* Absolute environment address for linker file.
*/
GEN_ABS(env_start, CFG_ENV_OFFSET + CFG_FLASH_BASE);

31
board/cmi/config.mk Normal file
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@@ -0,0 +1,31 @@
#
# (C) Copyright 2003
# Martin Winistoerfer, martinwinistoerfer@gmx.ch.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# EPQ Board Configuration
#
# Boot from flash at location 0x00000000
TEXT_BASE = 0x02000000
PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)

517
board/cmi/flash.c Normal file
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@@ -0,0 +1,517 @@
/*
* (C) Copyright 2003
* Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* File: flash.c
*
* Discription: This Driver is for 28F320J3A, 28F640J3A and
* 28F128J3A Intel flashs working in 16 Bit mode.
* They are single bank flashs.
*
* Most of this code is taken from existing u-boot
* source code.
*/
#include <common.h>
#include <mpc5xx.h>
#if defined(CFG_ENV_IS_IN_FLASH)
# ifndef CFG_ENV_ADDR
# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
# endif
# ifndef CFG_ENV_SIZE
# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
# endif
# ifndef CFG_ENV_SECT_SIZE
# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE
# endif
#endif
#define FLASH_ID_MASK 0xFFFF
#define FLASH_BLOCK_SIZE 0x00010000
#define FLASH_CMD_READ_ID 0x0090
#define FLASH_CMD_RESET 0x00ff
#define FLASH_CMD_BLOCK_ERASE 0x0020
#define FLASH_CMD_ERASE_CONFIRM 0x00D0
#define FLASH_CMD_CLEAR_STATUS 0x0050
#define FLASH_CMD_SUSPEND_ERASE 0x00B0
#define FLASH_CMD_WRITE 0x0040
#define FLASH_CMD_PROTECT 0x0060
#define FLASH_CMD_PROTECT_SET 0x0001
#define FLASH_CMD_PROTECT_CLEAR 0x00D0
#define FLASH_STATUS_DONE 0x0080
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
/*
* Local function prototypes
*/
static ulong flash_get_size (vu_short *addr, flash_info_t *info);
static int write_short (flash_info_t *info, ulong dest, ushort data);
static void flash_get_offsets (ulong base, flash_info_t *info);
/*
* Initialize flash
*/
unsigned long flash_init (void)
{
unsigned long size_b0;
int i;
/* Init: no FLASHes known */
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
}
/* Static FLASH Bank configuration here - FIXME XXX */
#if 1
debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM);
#endif
size_b0 = flash_get_size((vu_short *)FLASH_BASE0_PRELIM, &flash_info[0]);
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank 0: "
"ID 0x%lx, Size = 0x%08lx = %ld MB\n",
flash_info[0].flash_id,
size_b0, size_b0<<20);
}
flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);
flash_info[0].size = size_b0;
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
/* monitor protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
&flash_info[0]);
#endif
#ifdef CFG_ENV_IS_IN_FLASH
/* ENV protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR+CFG_ENV_SECT_SIZE-1,
&flash_info[0]);
#endif
return size_b0;
}
/*
* Compute start adress of each sector (block)
*/
static void flash_get_offsets (ulong base, flash_info_t *info)
{
int i;
if (info->flash_id == FLASH_UNKNOWN) {
return;
}
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_INTEL:
for (i = 0; i < info->sector_count; i++) {
info->start[i] = base + i * FLASH_BLOCK_SIZE;
}
return;
default:
printf ("Don't know sector offsets for flash type 0x%lx\n",
info->flash_id);
return;
}
}
/*
* Print flash information
*/
void flash_print_info (flash_info_t *info)
{
int i;
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return;
}
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_AMD: printf ("AMD "); break;
case FLASH_MAN_FUJ: printf ("Fujitsu "); break;
case FLASH_MAN_SST: printf ("SST "); break;
case FLASH_MAN_STM: printf ("STM "); break;
case FLASH_MAN_INTEL: printf ("Intel "); break;
case FLASH_MAN_MT: printf ("MT "); break;
default: printf ("Unknown Vendor "); break;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_28F320J3A: printf ("28F320J3A (32Mbit) 16-Bit\n");
break;
case FLASH_28F640J3A: printf ("28F640J3A (64Mbit) 16-Bit\n");
break;
case FLASH_28F128J3A: printf ("28F128J3A (128Mbit) 16-Bit\n");
break;
default: printf ("Unknown Chip Type\n");
break;
}
if (info->size >= (1 << 20)) {
i = 20;
} else {
i = 10;
}
printf (" Size: %ld %cB in %d Sectors\n",
info->size >> i,
(i == 20) ? 'M' : 'k',
info->sector_count);
printf (" Sector Start Addresses:");
for (i=0; i<info->sector_count; ++i) {
if ((i % 5) == 0)
printf ("\n ");
printf (" %08lX%s",
info->start[i],
info->protect[i] ? " (RO)" : " "
);
}
printf ("\n");
return;
}
/*
* Get size of flash in bytes.
* The following code cannot be run from FLASH!
*/
static ulong flash_get_size (vu_short *addr, flash_info_t *info)
{
vu_short value;
/* Read Manufacturer ID */
addr[0] = FLASH_CMD_READ_ID;
value = addr[0];
switch (value) {
case (AMD_MANUFACT & FLASH_ID_MASK):
info->flash_id = FLASH_MAN_AMD;
break;
case (FUJ_MANUFACT & FLASH_ID_MASK):
info->flash_id = FLASH_MAN_FUJ;
break;
case (SST_MANUFACT & FLASH_ID_MASK):
info->flash_id = FLASH_MAN_SST;
break;
case (STM_MANUFACT & FLASH_ID_MASK):
info->flash_id = FLASH_MAN_STM;
break;
case (INTEL_MANUFACT & FLASH_ID_MASK):
info->flash_id = FLASH_MAN_INTEL;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
addr[0] = FLASH_CMD_RESET; /* restore read mode */
return (0); /* no or unknown flash */
}
value = addr[1]; /* device ID */
switch (value) {
case (INTEL_ID_28F320J3A & FLASH_ID_MASK):
info->flash_id += FLASH_28F320J3A;
info->sector_count = 32;
info->size = 0x00400000;
break; /* => 32 MBit */
case (INTEL_ID_28F640J3A & FLASH_ID_MASK):
info->flash_id += FLASH_28F640J3A;
info->sector_count = 64;
info->size = 0x00800000;
break; /* => 64 MBit */
case (INTEL_ID_28F128J3A & FLASH_ID_MASK):
info->flash_id += FLASH_28F128J3A;
info->sector_count = 128;
info->size = 0x01000000;
break; /* => 128 MBit */
default:
info->flash_id = FLASH_UNKNOWN;
addr[0] = FLASH_CMD_RESET; /* restore read mode */
return (0); /* => no or unknown flash */
}
if (info->sector_count > CFG_MAX_FLASH_SECT) {
printf ("** ERROR: sector count %d > max (%d) **\n",
info->sector_count, CFG_MAX_FLASH_SECT);
info->sector_count = CFG_MAX_FLASH_SECT;
}
addr[0] = FLASH_CMD_RESET; /* restore read mode */
return (info->size);
}
/*
* Erase unprotected sectors
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
int flag, prot, sect;
ulong start, now, last;
if ((s_first < 0) || (s_first > s_last)) {
if (info->flash_id == FLASH_UNKNOWN) {
printf ("- missing\n");
} else {
printf ("- no sectors to erase\n");
}
return 1;
}
if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) {
printf ("Can erase only Intel flash types - aborted\n");
return 1;
}
prot = 0;
for (sect=s_first; sect<=s_last; ++sect) {
if (info->protect[sect]) {
prot++;
}
}
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n",
prot);
} else {
printf ("\n");
}
start = get_timer (0);
last = start;
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
vu_short *addr = (vu_short *)(info->start[sect]);
unsigned long status;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
#ifdef DEBUG
printf("Erase sector %d at start addr 0x%08X", sect, (unsigned int)info->start[sect]);
#endif
*addr = FLASH_CMD_CLEAR_STATUS;
*addr = FLASH_CMD_BLOCK_ERASE;
*addr = FLASH_CMD_ERASE_CONFIRM;
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
/* wait at least 80us - let's wait 1 ms */
udelay (1000);
while (((status = *addr) & FLASH_STATUS_DONE) != FLASH_STATUS_DONE) {
if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
printf("Flash erase timeout at address %lx\n", info->start[sect]);
*addr = FLASH_CMD_SUSPEND_ERASE;
*addr = FLASH_CMD_RESET;
return 1;
}
/* show that we're waiting */
if ((now - last) > 1000) { /* every second */
putc ('.');
last = now;
}
}
*addr = FLASH_CMD_RESET;
}
}
printf (" done\n");
return 0;
}
/*
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
* 4 - Flash not identified
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
ulong cp, wp;
ushort data;
int i, rc;
if (info->flash_id == FLASH_UNKNOWN) {
return 4;
}
wp = (addr & ~1); /* get lower word aligned address */
/*
* handle unaligned start byte
*/
if (addr - wp) {
data = 0;
data = (data << 8) | *src++;
--cnt;
if ((rc = write_short(info, wp, data)) != 0) {
return (rc);
}
wp += 2;
}
/*
* handle word aligned part
*/
while (cnt >= 2) {
data = 0;
for (i=0; i<2; ++i) {
data = (data << 8) | *src++;
}
if ((rc = write_short(info, wp, data)) != 0) {
return (rc);
}
wp += 2;
cnt -= 2;
}
if (cnt == 0) {
return (0);
}
/*
* handle unaligned tail bytes
*/
data = 0;
for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
data = (data << 8) | *src++;
--cnt;
}
for (; i<2; ++i, ++cp) {
data = (data << 8) | (*(uchar *)cp);
}
return (write_short(info, wp, data));
}
/*
* Write 16 bit (short) to flash
*/
static int write_short (flash_info_t *info, ulong dest, ushort data)
{
vu_short *addr = (vu_short*)(info->start[0]);
ulong start;
int flag;
/* Check if Flash is (sufficiently) erased */
if ((*((vu_short *)dest) & data) != data) {
return (2);
}
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
if (!(info->flash_id & FLASH_VENDMASK)) {
return 4;
}
*addr = FLASH_CMD_ERASE_CONFIRM;
*addr = FLASH_CMD_WRITE;
*((vu_short *)dest) = data;
/* re-enable interrupts if necessary */
if (flag) {
enable_interrupts();
}
/* data polling for D7 */
start = get_timer (0);
/* wait for error or finish */
while(!(addr[0] & FLASH_STATUS_DONE)){
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
addr[0] = FLASH_CMD_RESET;
return (1);
}
}
*addr = FLASH_CMD_RESET;
return (0);
}
/*
* Protects a flash sector
*/
int flash_real_protect(flash_info_t *info, long sector, int prot)
{
vu_short *addr = (vu_short*)(info->start[sector]);
ulong start;
*addr = FLASH_CMD_CLEAR_STATUS;
*addr = FLASH_CMD_PROTECT;
if(prot) {
*addr = FLASH_CMD_PROTECT_SET;
} else {
*addr = FLASH_CMD_PROTECT_CLEAR;
}
/* wait for error or finish */
start = get_timer (0);
while(!(addr[0] & FLASH_STATUS_DONE)){
if (get_timer(start) > CFG_FLASH_ERASE_TOUT) {
printf("Flash protect timeout at address %lx\n", info->start[sector]);
addr[0] = FLASH_CMD_RESET;
return (1);
}
}
/* Set software protect flag */
info->protect[sector] = prot;
*addr = FLASH_CMD_RESET;
return (0);
}

131
board/cmi/u-boot.lds Normal file
View File

@@ -0,0 +1,131 @@
/*
* (C) Copyright 2001 Wolfgang Denk, DENX Software Engineering, wd@denx.de
* (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_ARCH(powerpc)
SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = + SIZEOF_HEADERS;
.interp : { *(.interp) }
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.rel.text : { *(.rel.text) }
.rela.text : { *(.rela.text) }
.rel.data : { *(.rel.data) }
.rela.data : { *(.rela.data) }
.rel.rodata : { *(.rel.rodata) }
.rela.rodata : { *(.rela.rodata) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.ctors : { *(.rel.ctors) }
.rela.ctors : { *(.rela.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rela.dtors : { *(.rela.dtors) }
.rel.bss : { *(.rel.bss) }
.rela.bss : { *(.rela.bss) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
.init : { *(.init) }
.plt : { *(.plt) }
.text :
{
/* WARNING - the following is hand-optimized to fit within */
/* the sector layout of our flash chips! XXX FIXME XXX */
cpu/mpc5xx/start.o (.text)
*(.text)
*(.fixup)
*(.got1)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(.rodata)
*(.rodata1)
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
_erotext = .;
PROVIDE (erotext = .);
.reloc :
{
*(.got)
_GOT2_TABLE_ = .;
*(.got2)
_FIXUP_TABLE_ = .;
*(.fixup)
}
__got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
__fixup_entries = (. - _FIXUP_TABLE_)>>2;
.data :
{
*(.data)
*(.data1)
*(.sdata)
*(.sdata2)
*(.dynamic)
CONSTRUCTORS
}
_edata = .;
PROVIDE (edata = .);
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
. = ALIGN(256);
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__init_end = .;
__bss_start = .;
.bss :
{
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
}
_end = . ;
PROVIDE (end = .);
. = env_start;
.ppcenv :
{
common/environment.o (.ppcenv)
}
}

View File

@@ -38,6 +38,9 @@ DRAM_SIZE: .long CFG_DRAM_SIZE
sub pc,pc,#4
.endm
_TEXT_BASE:
.word TEXT_BASE
/*
* Memory setup
@@ -222,24 +225,29 @@ mem_init:
/* Step 2c: Write FLYCNFG FIXME: what's that??? */
/* ---------------------------------------------------------------- */
/* test if we run from flash or RAM - RAM/BDI: don't setup RAM */
adr r3, mem_init /* r0 <- current position of code */
ldr r2, =mem_init
cmp r3, r2 /* skip init if in place */
beq initirqs
/* ---------------------------------------------------------------- */
/* Step 2d: Initialize Timing for Sync Memory (SDCLK0) */
/* ---------------------------------------------------------------- */
/* Before accessing MDREFR we need a valid DRI field, so we set */
/* this to power on defaults + DIR field. */
/* this to power on defaults + DRI field. */
ldr r3, =CFG_MDREFR_VAL
ldr r2, =0xFFF
and r3, r3, r2
ldr r4, =0x03ca4000
orr r4, r4, r3
ldr r4, =0x03ca4fff
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
ldr r4, =0x03ca4030
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
/* Note: preserve the mdrefr value in r4 */
/* ---------------------------------------------------------------- */
/* Step 3: Initialize Synchronous Static Memory (Flash/Peripherals) */
@@ -258,18 +266,16 @@ mem_init:
/* Step 4: Initialize SDRAM */
/* ---------------------------------------------------------------- */
/* Step 4a: assert MDREFR:K1RUN and MDREFR:K2RUN and configure */
/* Step 4a: assert MDREFR:K?RUN and configure */
/* MDREFR:K1DB2 and MDREFR:K2DB2 as desired. */
orr r4, r4, #(MDREFR_K1RUN|MDREFR_K0RUN)
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
ldr r4, =CFG_MDREFR_VAL
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
/* Step 4b: de-assert MDREFR:SLFRSH. */
bic r4, r4, #(MDREFR_SLFRSH)
bic r4, r4, #(MDREFR_SLFRSH)
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]

View File

@@ -23,7 +23,7 @@
*/
#include <common.h>
#include <SA-1100.h>
/* ------------------------------------------------------------------------- */
@@ -41,8 +41,9 @@ int board_init (void)
/* arch number of DNP1110-Board */
gd->bd->bi_arch_number = 255;
/* adress of boot parameters */
gd->bd->bi_boot_params = 0xc0000100;
/* flash vpp on */
PPDR |= 0x80; /* assumes LCD controller is off */
PPSR |= 0x80;
return 0;
}

View File

@@ -1,7 +1,9 @@
/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Rolf Offermanns <rof@sysgo.de>
* (C) Copyright 2001
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -23,81 +25,58 @@
*/
#include <common.h>
ulong myflush(void);
#include <linux/byteorder/swab.h>
#define FLASH_BANK_SIZE 0x800000
#define MAIN_SECT_SIZE 0x20000
#define PARAM_SECT_SIZE 0x4000
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
/* puzzle magic for lart
* data_*_flash are def'd in flashasm.S
/* Board support for 1 or 2 flash devices */
#undef FLASH_PORT_WIDTH32
#define FLASH_PORT_WIDTH16
#ifdef FLASH_PORT_WIDTH16
#define FLASH_PORT_WIDTH ushort
#define FLASH_PORT_WIDTHV vu_short
#define SWAP(x) __swab16(x)
#else
#define FLASH_PORT_WIDTH ulong
#define FLASH_PORT_WIDTHV vu_long
#define SWAP(x) __swab32(x)
#endif
#define FPW FLASH_PORT_WIDTH
#define FPWV FLASH_PORT_WIDTHV
#define mb() __asm__ __volatile__ ("" : : : "memory")
/*-----------------------------------------------------------------------
* Functions
*/
extern u32 data_from_flash(u32);
extern u32 data_to_flash(u32);
#define PUZZLE_FROM_FLASH(x) (x)
#define PUZZLE_TO_FLASH(x) (x)
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
#define CMD_READ_ARRAY 0x00FF00FF
#define CMD_IDENTIFY 0x00900090
#define CMD_ERASE_SETUP 0x00200020
#define CMD_ERASE_CONFIRM 0x00D000D0
#define CMD_PROGRAM 0x00400040
#define CMD_RESUME 0x00D000D0
#define CMD_SUSPEND 0x00B000B0
#define CMD_STATUS_READ 0x00700070
#define CMD_STATUS_RESET 0x00500050
#define BIT_BUSY 0x00800080
#define BIT_ERASE_SUSPEND 0x00400040
#define BIT_ERASE_ERROR 0x00200020
#define BIT_PROGRAM_ERROR 0x00100010
#define BIT_VPP_RANGE_ERROR 0x00080008
#define BIT_PROGRAM_SUSPEND 0x00040004
#define BIT_PROTECT_ERROR 0x00020002
#define BIT_UNDEFINED 0x00010001
#define BIT_SEQUENCE_ERROR 0x00300030
#define BIT_TIMEOUT 0x80000000
static ulong flash_get_size (FPW *addr, flash_info_t *info);
static int write_data (flash_info_t *info, ulong dest, FPW data);
static void flash_get_offsets (ulong base, flash_info_t *info);
void inline spin_wheel(void);
/*-----------------------------------------------------------------------
*/
ulong flash_init(void)
unsigned long flash_init (void)
{
int i, j;
int i;
ulong size = 0;
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++)
{
ulong flashbase = 0;
flash_info[i].flash_id =
(INTEL_MANUFACT & FLASH_VENDMASK) |
(INTEL_ID_28F160F3B & FLASH_TYPEMASK);
flash_info[i].size = FLASH_BANK_SIZE;
flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
if (i == 0)
flashbase = PHYS_FLASH_1;
else
panic("configured to many flash banks!\n");
for (j = 0; j < flash_info[i].sector_count; j++)
{
if (j <= 7)
{
flash_info[i].start[j] = flashbase + j * PARAM_SECT_SIZE;
}
else
{
flash_info[i].start[j] = flashbase + (j - 7)*MAIN_SECT_SIZE;
}
}
switch (i)
{
case 0:
flash_get_size((FPW *)PHYS_FLASH_1, &flash_info[i]);
flash_get_offsets(PHYS_FLASH_1, &flash_info[i]);
break;
default:
panic("configured to many flash banks!\n");
break;
}
size += flash_info[i].size;
}
@@ -118,150 +97,138 @@ ulong flash_init(void)
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t *info)
static void flash_get_offsets (ulong base, flash_info_t *info)
{
int i;
int i;
switch (info->flash_id & FLASH_VENDMASK)
{
case (INTEL_MANUFACT & FLASH_VENDMASK):
printf("Intel: ");
break;
default:
printf("Unknown Vendor ");
break;
}
switch (info->flash_id & FLASH_TYPEMASK)
{
case (INTEL_ID_28F160F3B & FLASH_TYPEMASK):
printf("2x 28F160F3B (16Mbit)\n");
break;
default:
printf("Unknown Chip Type\n");
goto Done;
break;
}
printf(" Size: %ld MB in %d Sectors\n",
info->size >> 20, info->sector_count);
printf(" Sector Start Addresses:");
for (i = 0; i < info->sector_count; i++)
{
if ((i % 5) == 0)
{
printf ("\n ");
if (info->flash_id == FLASH_UNKNOWN) {
return;
}
printf (" %08lX%s", info->start[i],
info->protect[i] ? " (RO)" : " ");
}
printf ("\n");
Done:
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
for (i = 0; i < info->sector_count; i++) {
info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE);
info->protect[i] = 0;
}
}
}
/*-----------------------------------------------------------------------
*/
int flash_error (ulong code)
void flash_print_info (flash_info_t *info)
{
/* Check bit patterns */
/* SR.7=0 is busy, SR.7=1 is ready */
/* all other flags indicate error on 1 */
/* SR.0 is undefined */
/* Timeout is our faked flag */
int i;
/* sequence is described in Intel 290644-005 document */
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return;
}
/* check Timeout */
if (code & BIT_TIMEOUT)
{
printf ("Timeout\n");
return ERR_TIMOUT;
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_INTEL: printf ("INTEL "); break;
default: printf ("Unknown Vendor "); break;
}
/* check Busy, SR.7 */
if (~code & BIT_BUSY)
{
printf ("Busy\n");
return ERR_PROG_ERROR;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_28F128J3A:
printf ("28F128J3A\n"); break;
default: printf ("Unknown Chip Type\n"); break;
}
/* check Vpp low, SR.3 */
if (code & BIT_VPP_RANGE_ERROR)
{
printf ("Vpp range error\n");
return ERR_PROG_ERROR;
}
printf (" Size: %ld MB in %d Sectors\n",
info->size >> 20, info->sector_count);
/* check Device Protect Error, SR.1 */
if (code & BIT_PROTECT_ERROR)
{
printf ("Device protect error\n");
return ERR_PROG_ERROR;
}
/* check Command Seq Error, SR.4 & SR.5 */
if (code & BIT_SEQUENCE_ERROR)
{
printf ("Command seqence error\n");
return ERR_PROG_ERROR;
}
/* check Block Erase Error, SR.5 */
if (code & BIT_ERASE_ERROR)
{
printf ("Block erase error\n");
return ERR_PROG_ERROR;
}
/* check Program Error, SR.4 */
if (code & BIT_PROGRAM_ERROR)
{
printf ("Program error\n");
return ERR_PROG_ERROR;
}
/* check Block Erase Suspended, SR.6 */
if (code & BIT_ERASE_SUSPEND)
{
printf ("Block erase suspended\n");
return ERR_PROG_ERROR;
}
/* check Program Suspended, SR.2 */
if (code & BIT_PROGRAM_SUSPEND)
{
printf ("Program suspended\n");
return ERR_PROG_ERROR;
}
/* OK, no error */
return ERR_OK;
printf (" Sector Start Addresses:");
for (i=0; i<info->sector_count; ++i) {
if ((i % 5) == 0)
printf ("\n ");
printf (" %08lX%s",
info->start[i],
info->protect[i] ? " (RO)" : " "
);
}
printf ("\n");
return;
}
/*
* The following code cannot be run from FLASH!
*/
static ulong flash_get_size (FPW *addr, flash_info_t *info)
{
volatile FPW value;
/* Write auto select command: read Manufacturer ID */
addr[0x5555] = (FPW)0x00AA00AA;
addr[0x2AAA] = (FPW)0x00550055;
addr[0x5555] = (FPW)0x00900090;
mb();
value = addr[0];
switch (value) {
case (FPW)INTEL_MANUFACT:
info->flash_id = FLASH_MAN_INTEL;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
addr[0] = (FPW)0x00FF00FF; /* restore read mode */
return (0); /* no or unknown flash */
}
mb();
value = addr[1]; /* device ID */
switch (value) {
case (FPW)INTEL_ID_28F128J3A:
info->flash_id += FLASH_28F128J3A;
info->sector_count = 128;
info->size = 0x02000000;
break; /* => 16 MB */
default:
info->flash_id = FLASH_UNKNOWN;
break;
}
if (info->sector_count > CFG_MAX_FLASH_SECT) {
printf ("** ERROR: sector count %d > max (%d) **\n",
info->sector_count, CFG_MAX_FLASH_SECT);
info->sector_count = CFG_MAX_FLASH_SECT;
}
addr[0] = (FPW)0x00FF00FF; /* restore read mode */
return (info->size);
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
ulong result;
int iflag, cflag, prot, sect;
int rc = ERR_OK;
/* first look for protection bits */
if (info->flash_id == FLASH_UNKNOWN)
return ERR_UNKNOWN_FLASH_TYPE;
int flag, prot, sect;
ulong type, start, last;
int rcode = 0;
if ((s_first < 0) || (s_first > s_last)) {
return ERR_INVAL;
if (info->flash_id == FLASH_UNKNOWN) {
printf ("- missing\n");
} else {
printf ("- no sectors to erase\n");
}
return 1;
}
if ((info->flash_id & FLASH_VENDMASK) !=
(INTEL_MANUFACT & FLASH_VENDMASK)) {
return ERR_UNKNOWN_FLASH_VENDOR;
type = (info->flash_id & FLASH_VENDMASK);
if ((type != FLASH_MAN_INTEL)) {
printf ("Can't erase unknown flash type %08lx - aborted\n",
info->flash_id);
return 1;
}
prot = 0;
@@ -270,152 +237,79 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
prot++;
}
}
if (prot)
return ERR_PROTECTED;
/*
* Disable interrupts which might cause a timeout
* here. Remember that our exception vectors are
* at address 0 in the flash, and we don't want a
* (ticker) exception to happen while the flash
* chip is in programming mode.
*/
cflag = icache_status();
icache_disable();
iflag = disable_interrupts();
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n",
prot);
} else {
printf ("\n");
}
start = get_timer (0);
last = start;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last && !ctrlc(); sect++)
{
for (sect = s_first; sect<=s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
FPWV *addr = (FPWV *)(info->start[sect]);
FPW status;
printf("Erasing sector %2d ... ", sect);
/* arm simple, non interrupt dependent timer */
reset_timer_masked();
if (info->protect[sect] == 0)
{ /* not protected */
vu_long *addr = (vu_long *)(info->start[sect]);
*addr = (FPW)0x00500050; /* clear status register */
*addr = (FPW)0x00200020; /* erase setup */
*addr = (FPW)0x00D000D0; /* erase confirm */
*addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET);
*addr = PUZZLE_TO_FLASH(CMD_ERASE_SETUP);
*addr = PUZZLE_TO_FLASH(CMD_ERASE_CONFIRM);
/* wait until flash is ready */
do
{
/* check timeout */
if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
{
*addr = PUZZLE_TO_FLASH(CMD_SUSPEND);
result = BIT_TIMEOUT;
break;
}
result = PUZZLE_FROM_FLASH(*addr);
} while (~result & BIT_BUSY);
*addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY);
if ((rc = flash_error(result)) != ERR_OK)
goto outahere;
printf("ok.\n");
}
else /* it was protected */
{
printf("protected!\n");
while (((status = *addr) & (FPW)0x00800080) != (FPW)0x00800080) {
if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
printf ("Timeout\n");
*addr = (FPW)0x00B000B0; /* suspend erase */
*addr = (FPW)0x00FF00FF; /* reset to read mode */
rcode = 1;
break;
}
}
if (ctrlc())
printf("User Interrupt!\n");
*addr = (FPW)0x00500050; /* clear status register cmd. */
*addr = (FPW)0x00FF00FF; /* resest to read mode */
outahere:
/* allow flash to settle - wait 10 ms */
udelay_masked(10000);
if (iflag)
enable_interrupts();
if (cflag)
icache_enable();
return rc;
printf (" done\n");
}
}
return rcode;
}
/*-----------------------------------------------------------------------
* Copy memory to flash
*/
volatile static int write_word (flash_info_t *info, ulong dest, ulong data)
{
vu_long *addr = (vu_long *)dest;
ulong result;
int rc = ERR_OK;
int cflag, iflag;
/* Check if Flash is (sufficiently) erased
*/
result = PUZZLE_FROM_FLASH(*addr);
if ((result & data) != data)
return ERR_NOT_ERASED;
/*
* Disable interrupts which might cause a timeout
* here. Remember that our exception vectors are
* at address 0 in the flash, and we don't want a
* (ticker) exception to happen while the flash
* chip is in programming mode.
*/
cflag = icache_status();
icache_disable();
iflag = disable_interrupts();
*addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET);
*addr = PUZZLE_TO_FLASH(CMD_PROGRAM);
*addr = data;
/* arm simple, non interrupt dependent timer */
reset_timer_masked();
/* wait until flash is ready */
do
{
/* check timeout */
if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
{
*addr = PUZZLE_TO_FLASH(CMD_SUSPEND);
result = BIT_TIMEOUT;
break;
}
result = PUZZLE_FROM_FLASH(*addr);
} while (~result & BIT_BUSY);
*addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY);
rc = flash_error(result);
if (iflag)
enable_interrupts();
if (cflag)
icache_enable();
return rc;
}
/*-----------------------------------------------------------------------
* Copy memory to flash.
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
* 4 - Flash not identified
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
ulong cp, wp, data;
int l;
int i, rc;
ulong cp, wp;
FPW data;
int count, i, l, rc, port_width;
wp = (addr & ~3); /* get lower word aligned address */
if (info->flash_id == FLASH_UNKNOWN) {
return 4;
}
/* get lower word aligned address */
#ifdef FLASH_PORT_WIDTH16
wp = (addr & ~1);
port_width = 2;
#else
wp = (addr & ~3);
port_width = 4;
#endif
/*
* handle unaligned start bytes
@@ -423,51 +317,109 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
if ((l = addr - wp) != 0) {
data = 0;
for (i=0, cp=wp; i<l; ++i, ++cp) {
data = (data >> 8) | (*(uchar *)cp << 24);
data = (data << 8) | (*(uchar *)cp);
}
for (; i<4 && cnt>0; ++i) {
data = (data >> 8) | (*src++ << 24);
for (; i<port_width && cnt>0; ++i) {
data = (data << 8) | *src++;
--cnt;
++cp;
}
for (; cnt==0 && i<4; ++i, ++cp) {
data = (data >> 8) | (*(uchar *)cp << 24);
for (; cnt==0 && i<port_width; ++i, ++cp) {
data = (data << 8) | (*(uchar *)cp);
}
if ((rc = write_word(info, wp, data)) != 0) {
if ((rc = write_data(info, wp, SWAP(data))) != 0) {
return (rc);
}
wp += 4;
wp += port_width;
}
/*
* handle word aligned part
*/
while (cnt >= 4) {
data = *((vu_long*)src);
if ((rc = write_word(info, wp, data)) != 0) {
count = 0;
while (cnt >= port_width) {
data = 0;
for (i=0; i<port_width; ++i) {
data = (data << 8) | *src++;
}
if ((rc = write_data(info, wp, SWAP(data))) != 0) {
return (rc);
}
src += 4;
wp += 4;
cnt -= 4;
wp += port_width;
cnt -= port_width;
if (count++ > 0x800)
{
spin_wheel();
count = 0;
}
}
if (cnt == 0) {
return ERR_OK;
return (0);
}
/*
* handle unaligned tail bytes
*/
data = 0;
for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
data = (data >> 8) | (*src++ << 24);
for (i=0, cp=wp; i<port_width && cnt>0; ++i, ++cp) {
data = (data << 8) | *src++;
--cnt;
}
for (; i<4; ++i, ++cp) {
data = (data >> 8) | (*(uchar *)cp << 24);
for (; i<port_width; ++i, ++cp) {
data = (data << 8) | (*(uchar *)cp);
}
return (write_data(info, wp, SWAP(data)));
}
/*-----------------------------------------------------------------------
* Write a word or halfword to Flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
static int write_data (flash_info_t *info, ulong dest, FPW data)
{
FPWV *addr = (FPWV *)dest;
ulong status;
int flag;
/* Check if Flash is (sufficiently) erased */
if ((*addr & data) != data) {
printf("not erased at %08lx (%x)\n",(ulong)addr,*addr);
return (2);
}
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
*addr = (FPW)0x00400040; /* write setup */
*addr = data;
/* arm simple, non interrupt dependent timer */
reset_timer_masked();
/* wait while polling the status register */
while (((status = *addr) & (FPW)0x00800080) != (FPW)0x00800080) {
if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
*addr = (FPW)0x00FF00FF; /* restore read mode */
return (1);
}
}
return write_word(info, wp, data);
*addr = (FPW)0x00FF00FF; /* restore read mode */
return (0);
}
void inline
spin_wheel(void)
{
static int p=0;
static char w[] = "\\/-";
printf("\010%c", w[p]);
(++p == 3) ? (p = 0) : 0;
}

View File

@@ -25,8 +25,8 @@
#include <config.h>
#include <version.h>
#include "config.h"
#include "version.h"
/* some parameters for the board */
@@ -34,63 +34,103 @@
MEM_BASE: .long 0xa0000000
MEM_START: .long 0xc0000000
#define MDCNFG 0x00
#define MDCAS0 0x04
#define MDCAS1 0x08
#define MDCAS2 0x0c
#define MSC0 0x10
#define MSC1 0x14
#define MECR 0x18
#define MDCNFG 0x00
#define MDCAS00 0x04 /* CAS waveform rotate reg 0 */
#define MDCAS01 0x08 /* CAS waveform rotate reg 1 bank */
#define MDCAS02 0x0C /* CAS waveform rotate reg 2 bank */
#define MDREFR 0x1C /* DRAM refresh control reg */
#define MDCAS20 0x20 /* CAS waveform rotate reg 0 bank */
#define MDCAS21 0x24 /* CAS waveform rotate reg 1 bank */
#define MDCAS22 0x28 /* CAS waveform rotate reg 2 bank */
#define MECR 0x18 /* Expansion memory (PCMCIA) bus configuration register */
#define MSC0 0x10 /* static memory control reg 0 */
#define MSC1 0x14 /* static memory control reg 1 */
#define MSC2 0x2C /* static memory control reg 2 */
#define SMCNFG 0x30 /* SMROM configuration reg */
mdcas0: .long 0xc71c703f
mdcas1: .long 0xffc71c71
mdcas2: .long 0xffffffff
/* mdcnfg: .long 0x0bb2bcbf */
mdcnfg: .long 0x0334b22f @ alt
/* mcs0: .long 0xfff8fff8 */
msc0: .long 0xad8c4888 @ alt
mecr: .long 0x00060006
/* mecr: .long 0x994a994a @ alt */
mdcas00: .long 0x5555557F
mdcas01: .long 0x55555555
mdcas02: .long 0x55555555
mdcas20: .long 0x5555557F
mdcas21: .long 0x55555555
mdcas22: .long 0x55555555
mdcnfg: .long 0x0000B25C
mdrefr: .long 0x007000C1
mecr: .long 0x10841084
msc0: .long 0x00004774
msc1: .long 0x00000000
msc2: .long 0x00000000
smcnfg: .long 0x00000000
/* setting up the memory */
.globl memsetup
memsetup:
ldr r0, MEM_BASE
/* Setup the flash memory */
ldr r1, msc0
str r1, [r0, #MSC0]
ldr r0, MEM_BASE
/* Set up the DRAM */
/* MDCAS0 */
ldr r1, mdcas0
str r1, [r0, #MDCAS0]
/* MDCAS00 */
ldr r1, mdcas00
str r1, [r0, #MDCAS00]
/* MDCAS1 */
ldr r1, mdcas1
str r1, [r0, #MDCAS1]
/* MDCAS01 */
ldr r1, mdcas01
str r1, [r0, #MDCAS01]
/* MDCAS2 */
ldr r1, mdcas2
str r1, [r0, #MDCAS2]
/* MDCAS02 */
ldr r1, mdcas02
str r1, [r0, #MDCAS02]
/* MDCNFG */
ldr r1, mdcnfg
str r1, [r0, #MDCNFG]
/* MDCAS20 */
ldr r1, mdcas20
str r1, [r0, #MDCAS20]
/* MDCAS21 */
ldr r1, mdcas21
str r1, [r0, #MDCAS21]
/* MDCAS22 */
ldr r1, mdcas22
str r1, [r0, #MDCAS22]
/* MDREFR */
ldr r1, mdrefr
str r1, [r0, #MDREFR]
/* Set up PCMCIA space */
ldr r1, mecr
str r1, [r0, #MECR]
/* Load something to activate bank */
ldr r1, MEM_START
/* Setup the flash memory and other */
ldr r1, msc0
str r1, [r0, #MSC0]
ldr r1, msc1
str r1, [r0, #MSC1]
ldr r1, msc2
str r1, [r0, #MSC2]
ldr r1, smcnfg
str r1, [r0, #SMCNFG]
/* MDCNFG */
ldr r1, mdcnfg
bic r1, r1, #0x00000001
str r1, [r0, #MDCNFG]
/* Load something to activate bank */
ldr r2, MEM_START
.rept 8
ldr r0, [r1]
ldr r1, [r2]
.endr
/* MDCNFG */
ldr r1, mdcnfg
orr r1, r1, #0x00000001
str r1, [r0, #MDCNFG]
/* everything is fine now */
mov pc, lr

View File

@@ -327,6 +327,9 @@ void flash_print_info (flash_info_t *info)
case (FLASH_WORD_SIZE)SST_MANUFACT:
info->flash_id = FLASH_MAN_SST;
break;
case (FLASH_WORD_SIZE)STM_MANUFACT:
info->flash_id = FLASH_MAN_STM;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
@@ -349,6 +352,11 @@ void flash_print_info (flash_info_t *info)
info->sector_count = 32;
info->size = 0x00200000;
break; /* => 2 MB */
case (FLASH_WORD_SIZE)STM_ID_F040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x0080000; /* => 512 ko */
break;
case (FLASH_WORD_SIZE)AMD_ID_F040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;

View File

@@ -234,6 +234,7 @@ int misc_init_r (void)
bd_t *bd = gd->bd;
char * tmp; /* Temporary char pointer */
unsigned long cntrl0Reg;
#ifdef CONFIG_CPCI405_VER2
unsigned char *dst;
@@ -241,7 +242,6 @@ int misc_init_r (void)
int status;
int index;
int i;
unsigned long cntrl0Reg;
/*
* On CPCI-405 version 2 the environment is saved in eeprom!
@@ -377,6 +377,12 @@ int misc_init_r (void)
#endif /* CONFIG_CPCI405_VER2 */
/*
* Select cts (and not dsr) on uart1
*/
cntrl0Reg = mfdcr(cntrl0);
mtdcr(cntrl0, cntrl0Reg | 0x00001000);
/*
* Write ethernet addr in NVRAM for VxWorks
*/

View File

@@ -103,7 +103,6 @@ int misc_init_r (void)
int status;
int index;
int i;
struct pci_config_regs *pci_regs;
unsigned int *ptr;
unsigned int *magic;

32
board/esd/pci405/pci405.h Normal file
View File

@@ -0,0 +1,32 @@
/*
* (C) Copyright 2003
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _PCI405_H_
#define _PCI405_H_
#define PCI_REGS_LEN 0x100
#define PCI_REGS_ADDR ((unsigned long)0x01000000 - PCI_REGS_LEN)
#define PCI_RECONFIG_MAGIC 0x07081967
#endif /* _PCI405_H_ */

41
board/incaip/Makefile Normal file
View File

@@ -0,0 +1,41 @@
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS = $(BOARD).o flash.o
SOBJS = memsetup.o
$(LIB): .depend $(OBJS) $(SOBJS)
$(AR) crv $@ $^
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
sinclude .depend
#########################################################################

32
board/incaip/config.mk Normal file
View File

@@ -0,0 +1,32 @@
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# INCA-IP board with MIPS 4Kc CPU core
#
# ROM version
TEXT_BASE = 0xB0000000
# RAM version
#TEXT_BASE = 0x80100000

671
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/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/inca-ip.h>
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
/* NOTE - CONFIG_FLASH_16BIT means the CPU interface is 16-bit, it
* has nothing to do with the flash chip being 8-bit or 16-bit.
*/
#ifdef CONFIG_FLASH_16BIT
typedef unsigned short FLASH_PORT_WIDTH;
typedef volatile unsigned short FLASH_PORT_WIDTHV;
#define FLASH_ID_MASK 0xFFFF
#else
typedef unsigned long FLASH_PORT_WIDTH;
typedef volatile unsigned long FLASH_PORT_WIDTHV;
#define FLASH_ID_MASK 0xFFFFFFFF
#endif
#define FPW FLASH_PORT_WIDTH
#define FPWV FLASH_PORT_WIDTHV
#define ORMASK(size) ((-size) & OR_AM_MSK)
#if 0
#define FLASH_CYCLE1 0x0555
#define FLASH_CYCLE2 0x02aa
#else
#define FLASH_CYCLE1 0x0554
#define FLASH_CYCLE2 0x02ab
#endif
/*-----------------------------------------------------------------------
* Functions
*/
static ulong flash_get_size(FPWV *addr, flash_info_t *info);
static void flash_reset(flash_info_t *info);
static int write_word_intel(flash_info_t *info, FPWV *dest, FPW data);
static int write_word_amd(flash_info_t *info, FPWV *dest, FPW data);
static void flash_get_offsets(ulong base, flash_info_t *info);
static flash_info_t *flash_get_info(ulong base);
/*-----------------------------------------------------------------------
* flash_init()
*
* sets up flash_info and returns size of FLASH (bytes)
*/
unsigned long flash_init (void)
{
unsigned long size = 0;
int i;
/* Init: no FLASHes known */
for (i=0; i < CFG_MAX_FLASH_BANKS; ++i) {
ulong flashbase = (i == 0) ? PHYS_FLASH_1 : PHYS_FLASH_2;
ulong * buscon = (ulong *)
((i == 0) ? INCA_IP_EBU_EBU_BUSCON0 : INCA_IP_EBU_EBU_BUSCON2);
/* Disable write protection */
*buscon &= ~INCA_IP_EBU_EBU_BUSCON1_WRDIS;
#if 1
memset(&flash_info[i], 0, sizeof(flash_info_t));
#endif
flash_info[i].size =
flash_get_size((FPW *)flashbase, &flash_info[i]);
if (flash_info[i].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx\n",
i, flash_info[i].size);
}
size += flash_info[i].size;
}
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
/* monitor protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
flash_get_info(CFG_MONITOR_BASE));
#endif
#ifdef CFG_ENV_IS_IN_FLASH
/* ENV protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR+CFG_ENV_SIZE-1,
flash_get_info(CFG_ENV_ADDR));
#endif
return size;
}
/*-----------------------------------------------------------------------
*/
static void flash_reset(flash_info_t *info)
{
FPWV *base = (FPWV *)(info->start[0]);
/* Put FLASH back in read mode */
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
*base = (FPW)0x00FF00FF; /* Intel Read Mode */
else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
*base = (FPW)0x00F000F0; /* AMD Read Mode */
}
/*-----------------------------------------------------------------------
*/
static void flash_get_offsets (ulong base, flash_info_t *info)
{
int i;
/* set up sector start address table */
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL
&& (info->flash_id & FLASH_BTYPE)) {
int bootsect_size; /* number of bytes/boot sector */
int sect_size; /* number of bytes/regular sector */
bootsect_size = 0x00002000 * (sizeof(FPW)/2);
sect_size = 0x00010000 * (sizeof(FPW)/2);
/* set sector offsets for bottom boot block type */
for (i = 0; i < 8; ++i) {
info->start[i] = base + (i * bootsect_size);
}
for (i = 8; i < info->sector_count; i++) {
info->start[i] = base + ((i - 7) * sect_size);
}
}
else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD
&& (info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U) {
int sect_size; /* number of bytes/sector */
sect_size = 0x00010000 * (sizeof(FPW)/2);
/* set up sector start address table (uniform sector type) */
for( i = 0; i < info->sector_count; i++ )
info->start[i] = base + (i * sect_size);
}
}
/*-----------------------------------------------------------------------
*/
static flash_info_t *flash_get_info(ulong base)
{
int i;
flash_info_t * info;
for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) {
info = & flash_info[i];
if (info->start[0] <= base && base < info->start[0] + info->size)
break;
}
return i == CFG_MAX_FLASH_BANKS ? 0 : info;
}
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t *info)
{
int i;
uchar *boottype;
uchar *bootletter;
uchar *fmt;
uchar botbootletter[] = "B";
uchar topbootletter[] = "T";
uchar botboottype[] = "bottom boot sector";
uchar topboottype[] = "top boot sector";
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return;
}
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_AMD: printf ("AMD "); break;
case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break;
case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
case FLASH_MAN_SST: printf ("SST "); break;
case FLASH_MAN_STM: printf ("STM "); break;
case FLASH_MAN_INTEL: printf ("INTEL "); break;
default: printf ("Unknown Vendor "); break;
}
/* check for top or bottom boot, if it applies */
if (info->flash_id & FLASH_BTYPE) {
boottype = botboottype;
bootletter = botbootletter;
}
else {
boottype = topboottype;
bootletter = topbootletter;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AM640U:
fmt = "29LV641D (64 Mbit, uniform sectors)\n";
break;
case FLASH_28F800C3B:
case FLASH_28F800C3T:
fmt = "28F800C3%s (8 Mbit, %s)\n";
break;
case FLASH_INTEL800B:
case FLASH_INTEL800T:
fmt = "28F800B3%s (8 Mbit, %s)\n";
break;
case FLASH_28F160C3B:
case FLASH_28F160C3T:
fmt = "28F160C3%s (16 Mbit, %s)\n";
break;
case FLASH_INTEL160B:
case FLASH_INTEL160T:
fmt = "28F160B3%s (16 Mbit, %s)\n";
break;
case FLASH_28F320C3B:
case FLASH_28F320C3T:
fmt = "28F320C3%s (32 Mbit, %s)\n";
break;
case FLASH_INTEL320B:
case FLASH_INTEL320T:
fmt = "28F320B3%s (32 Mbit, %s)\n";
break;
case FLASH_28F640C3B:
case FLASH_28F640C3T:
fmt = "28F640C3%s (64 Mbit, %s)\n";
break;
case FLASH_INTEL640B:
case FLASH_INTEL640T:
fmt = "28F640B3%s (64 Mbit, %s)\n";
break;
default:
fmt = "Unknown Chip Type\n";
break;
}
printf (fmt, bootletter, boottype);
printf (" Size: %ld MB in %d Sectors\n",
info->size >> 20,
info->sector_count);
printf (" Sector Start Addresses:");
for (i=0; i<info->sector_count; ++i) {
if ((i % 5) == 0) {
printf ("\n ");
}
printf (" %08lX%s", info->start[i],
info->protect[i] ? " (RO)" : " ");
}
printf ("\n");
}
/*-----------------------------------------------------------------------
*/
/*
* The following code cannot be run from FLASH!
*/
ulong flash_get_size (FPWV *addr, flash_info_t *info)
{
/* Write auto select command: read Manufacturer ID */
/* Write auto select command sequence and test FLASH answer */
addr[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* for AMD, Intel ignores this */
addr[FLASH_CYCLE2] = (FPW)0x00550055; /* for AMD, Intel ignores this */
addr[FLASH_CYCLE1] = (FPW)0x00900090; /* selects Intel or AMD */
/* The manufacturer codes are only 1 byte, so just use 1 byte.
* This works for any bus width and any FLASH device width.
*/
switch (addr[1] & 0xff) {
case (uchar)AMD_MANUFACT:
info->flash_id = FLASH_MAN_AMD;
break;
case (uchar)INTEL_MANUFACT:
info->flash_id = FLASH_MAN_INTEL;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
break;
}
/* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
if (info->flash_id != FLASH_UNKNOWN) switch (addr[0]) {
case (FPW)AMD_ID_LV640U: /* 29LV640 and 29LV641 have same ID */
info->flash_id += FLASH_AM640U;
info->sector_count = 128;
info->size = 0x00800000 * (sizeof(FPW)/2);
break; /* => 8 or 16 MB */
case (FPW)INTEL_ID_28F800C3B:
info->flash_id += FLASH_28F800C3B;
info->sector_count = 23;
info->size = 0x00100000 * (sizeof(FPW)/2);
break; /* => 1 or 2 MB */
case (FPW)INTEL_ID_28F800B3B:
info->flash_id += FLASH_INTEL800B;
info->sector_count = 23;
info->size = 0x00100000 * (sizeof(FPW)/2);
break; /* => 1 or 2 MB */
case (FPW)INTEL_ID_28F160C3B:
info->flash_id += FLASH_28F160C3B;
info->sector_count = 39;
info->size = 0x00200000 * (sizeof(FPW)/2);
break; /* => 2 or 4 MB */
case (FPW)INTEL_ID_28F160B3B:
info->flash_id += FLASH_INTEL160B;
info->sector_count = 39;
info->size = 0x00200000 * (sizeof(FPW)/2);
break; /* => 2 or 4 MB */
case (FPW)INTEL_ID_28F320C3B:
info->flash_id += FLASH_28F320C3B;
info->sector_count = 71;
info->size = 0x00400000 * (sizeof(FPW)/2);
break; /* => 4 or 8 MB */
case (FPW)INTEL_ID_28F320B3B:
info->flash_id += FLASH_INTEL320B;
info->sector_count = 71;
info->size = 0x00400000 * (sizeof(FPW)/2);
break; /* => 4 or 8 MB */
case (FPW)INTEL_ID_28F640C3B:
info->flash_id += FLASH_28F640C3B;
info->sector_count = 135;
info->size = 0x00800000 * (sizeof(FPW)/2);
break; /* => 8 or 16 MB */
case (FPW)INTEL_ID_28F640B3B:
info->flash_id += FLASH_INTEL640B;
info->sector_count = 135;
info->size = 0x00800000 * (sizeof(FPW)/2);
break; /* => 8 or 16 MB */
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
return (0); /* => no or unknown flash */
}
flash_get_offsets((ulong)addr, info);
/* Put FLASH back in read mode */
flash_reset(info);
return (info->size);
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
FPWV *addr;
int flag, prot, sect;
int intel = (info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL;
ulong start, now, last;
int rcode = 0;
if ((s_first < 0) || (s_first > s_last)) {
if (info->flash_id == FLASH_UNKNOWN) {
printf ("- missing\n");
} else {
printf ("- no sectors to erase\n");
}
return 1;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_INTEL800B:
case FLASH_INTEL160B:
case FLASH_INTEL320B:
case FLASH_INTEL640B:
case FLASH_28F800C3B:
case FLASH_28F160C3B:
case FLASH_28F320C3B:
case FLASH_28F640C3B:
case FLASH_AM640U:
break;
case FLASH_UNKNOWN:
default:
printf ("Can't erase unknown flash type %08lx - aborted\n",
info->flash_id);
return 1;
}
prot = 0;
for (sect=s_first; sect<=s_last; ++sect) {
if (info->protect[sect]) {
prot++;
}
}
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n",
prot);
} else {
printf ("\n");
}
last = get_timer(0);
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last && rcode == 0; sect++) {
if (info->protect[sect] != 0) /* protected, skip it */
continue;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
addr = (FPWV *)(info->start[sect]);
if (intel) {
*addr = (FPW)0x00500050; /* clear status register */
*addr = (FPW)0x00200020; /* erase setup */
*addr = (FPW)0x00D000D0; /* erase confirm */
}
else {
/* must be AMD style if not Intel */
FPWV *base; /* first address in bank */
base = (FPWV *)(info->start[0]);
base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
base[FLASH_CYCLE1] = (FPW)0x00800080; /* erase mode */
base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
*addr = (FPW)0x00300030; /* erase sector */
}
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
start = get_timer(0);
/* wait at least 50us for AMD, 80us for Intel.
* Let's wait 1 ms.
*/
udelay (1000);
while ((*addr & (FPW)0x00800080) != (FPW)0x00800080) {
if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
printf ("Timeout\n");
if (intel) {
/* suspend erase */
*addr = (FPW)0x00B000B0;
}
flash_reset(info); /* reset to read mode */
rcode = 1; /* failed */
break;
}
/* show that we're waiting */
if ((get_timer(last)) > CFG_HZ) {/* every second */
putc ('.');
last = get_timer(0);
}
}
/* show that we're waiting */
if ((get_timer(last)) > CFG_HZ) { /* every second */
putc ('.');
last = get_timer(0);
}
flash_reset(info); /* reset to read mode */
}
printf (" done\n");
return rcode;
}
/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
FPW data = 0; /* 16 or 32 bit word, matches flash bus width on MPC8XX */
int bytes; /* number of bytes to program in current word */
int left; /* number of bytes left to program */
int i, res;
for (left = cnt, res = 0;
left > 0 && res == 0;
addr += sizeof(data), left -= sizeof(data) - bytes) {
bytes = addr & (sizeof(data) - 1);
addr &= ~(sizeof(data) - 1);
/* combine source and destination data so can program
* an entire word of 16 or 32 bits
*/
for (i = 0; i < sizeof(data); i++) {
data <<= 8;
if (i < bytes || i - bytes >= left )
data += *((uchar *)addr + i);
else
data += *src++;
}
/* write one word to the flash */
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_AMD:
res = write_word_amd(info, (FPWV *)addr, data);
break;
case FLASH_MAN_INTEL:
res = write_word_intel(info, (FPWV *)addr, data);
break;
default:
/* unknown flash type, error! */
printf ("missing or unknown FLASH type\n");
res = 1; /* not really a timeout, but gives error */
break;
}
}
return (res);
}
/*-----------------------------------------------------------------------
* Write a word to Flash for AMD FLASH
* A word is 16 or 32 bits, whichever the bus width of the flash bank
* (not an individual chip) is.
*
* returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
static int write_word_amd (flash_info_t *info, FPWV *dest, FPW data)
{
ulong start;
int flag;
int res = 0; /* result, assume success */
FPWV *base; /* first address in flash bank */
/* Check if Flash is (sufficiently) erased */
if ((*dest & data) != data) {
return (2);
}
base = (FPWV *)(info->start[0]);
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
base[FLASH_CYCLE1] = (FPW)0x00A000A0; /* selects program mode */
*dest = data; /* start programming the data */
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
start = get_timer (0);
/* data polling for D7 */
while (res == 0 && (*dest & (FPW)0x00800080) != (data & (FPW)0x00800080)) {
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
*dest = (FPW)0x00F000F0; /* reset bank */
res = 1;
}
}
return (res);
}
/*-----------------------------------------------------------------------
* Write a word to Flash for Intel FLASH
* A word is 16 or 32 bits, whichever the bus width of the flash bank
* (not an individual chip) is.
*
* returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
static int write_word_intel (flash_info_t *info, FPWV *dest, FPW data)
{
ulong start;
int flag;
int res = 0; /* result, assume success */
/* Check if Flash is (sufficiently) erased */
if ((*dest & data) != data) {
return (2);
}
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
*dest = (FPW)0x00500050; /* clear status register */
*dest = (FPW)0x00FF00FF; /* make sure in read mode */
*dest = (FPW)0x00400040; /* program setup */
*dest = data; /* start programming the data */
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
start = get_timer (0);
while (res == 0 && (*dest & (FPW)0x00800080) != (FPW)0x00800080) {
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
*dest = (FPW)0x00B000B0; /* Suspend program */
res = 1;
}
}
if (res == 0 && (*dest & (FPW)0x00100010))
res = 1; /* write failed, time out error is close enough */
*dest = (FPW)0x00500050; /* clear status register */
*dest = (FPW)0x00FF00FF; /* make sure in read mode */
return (res);
}

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/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <asm/addrspace.h>
#include <asm/inca-ip.h>
extern uint incaip_get_cpuclk(void);
static ulong max_sdram_size(void)
{
/* The only supported SDRAM data width is 16bit.
*/
#define CFG_DW 2
/* The only supported number of SDRAM banks is 4.
*/
#define CFG_NB 4
ulong cfgpb0 = *INCA_IP_SDRAM_MC_CFGPB0;
int cols = cfgpb0 & 0xF;
int rows = (cfgpb0 & 0xF0) >> 4;
ulong size = (1 << (rows + cols)) * CFG_DW * CFG_NB;
return size;
}
/*
* Check memory range for valid RAM. A simple memory test determines
* the actually available RAM size between addresses `base' and
* `base + maxsize'. Some (not all) hardware errors are detected:
* - short between address lines
* - short between data lines
*/
static long int dram_size(long int *base, long int maxsize)
{
volatile long int *addr;
ulong cnt, val;
ulong save[32]; /* to make test non-destructive */
unsigned char i = 0;
for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) {
addr = base + cnt; /* pointer arith! */
save[i++] = *addr;
*addr = ~cnt;
}
/* write 0 to base address */
addr = base;
save[i] = *addr;
*addr = 0;
/* check at base address */
if ((val = *addr) != 0) {
*addr = save[i];
return (0);
}
for (cnt = 1; cnt < maxsize / sizeof (long); cnt <<= 1) {
addr = base + cnt; /* pointer arith! */
val = *addr;
*addr = save[--i];
if (val != (~cnt)) {
return (cnt * sizeof (long));
}
}
return (maxsize);
}
long int initdram(int board_type)
{
int rows, cols, best_val = *INCA_IP_SDRAM_MC_CFGPB0;
ulong size, max_size = 0;
ulong our_address;
asm volatile ("move %0, $25" : "=r" (our_address) :);
/* Can't probe for RAM size unless we are running from Flash.
*/
if (PHYSADDR(our_address) < PHYSADDR(PHYS_FLASH_1))
{
return max_sdram_size();
}
for (cols = 0x8; cols <= 0xC; cols++)
{
for (rows = 0xB; rows <= 0xD; rows++)
{
*INCA_IP_SDRAM_MC_CFGPB0 = (0x14 << 8) |
(rows << 4) | cols;
size = dram_size((ulong *)CFG_SDRAM_BASE,
max_sdram_size());
if (size > max_size)
{
best_val = *INCA_IP_SDRAM_MC_CFGPB0;
max_size = size;
}
}
}
*INCA_IP_SDRAM_MC_CFGPB0 = best_val;
return max_size;
}
int checkboard (void)
{
unsigned long chipid = *INCA_IP_WDT_CHIPID;
int part_num;
puts ("Board: INCA-IP ");
part_num = (chipid >> 12) & 0xffff;
switch (part_num) {
case 0xc0:
printf ("Standard Version, ");
break;
case 0xc1:
printf ("Basic Version, ");
break;
default:
printf ("Unknown Part Number 0x%x ", part_num);
break;
}
printf ("Chip V1.%ld, ", (chipid >> 28));
printf("CPU Speed %d MHz\n", incaip_get_cpuclk()/1000000);
return 0;
}

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/*
* Memory sub-system initialization code for INCA-IP development board.
*
* Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
#include <asm/regdef.h>
#define EBU_MODUL_BASE 0xB8000200
#define EBU_CLC(value) 0x0000(value)
#define EBU_CON(value) 0x0010(value)
#define EBU_ADDSEL0(value) 0x0020(value)
#define EBU_ADDSEL1(value) 0x0024(value)
#define EBU_ADDSEL2(value) 0x0028(value)
#define EBU_BUSCON0(value) 0x0060(value)
#define EBU_BUSCON1(value) 0x0064(value)
#define EBU_BUSCON2(value) 0x0068(value)
#define MC_MODUL_BASE 0xBF800000
#define MC_ERRCAUSE(value) 0x0100(value)
#define MC_ERRADDR(value) 0x0108(value)
#define MC_IOGP(value) 0x0800(value)
#define MC_SELFRFSH(value) 0x0A00(value)
#define MC_CTRLENA(value) 0x1000(value)
#define MC_MRSCODE(value) 0x1008(value)
#define MC_CFGDW(value) 0x1010(value)
#define MC_CFGPB0(value) 0x1018(value)
#define MC_LATENCY(value) 0x1038(value)
#define MC_TREFRESH(value) 0x1040(value)
#if CPU_CLOCK_RATE==150000000 /* 150 MHz clock for the MIPS core */
#define CGU_MODUL_BASE 0xBF107000
#define CGU_PLL1CR(value) 0x0008(value)
#define CGU_DIVCR(value) 0x0010(value)
#define CGU_MUXCR(value) 0x0014(value)
#define CGU_PLL1SR(value) 0x000C(value)
#endif
.globl memsetup
memsetup:
/* EBU Initialization for the Flash CS0 and CS2.
*/
li t0, EBU_MODUL_BASE
li t1, 0xA0000041
sw t1, EBU_ADDSEL0(t0)
#if CPU_CLOCK_RATE==150000000 /* 150 MHz clock for the MIPS core */
li t1, 0xA841417E
sw t1, EBU_BUSCON0(t0) /* value set up by magic flash word */
sw t1, EBU_BUSCON2(t0)
#else /* 100 MHz */
lw t1, EBU_BUSCON0(t0) /* value set up by magic flash word */
sw t1, EBU_BUSCON2(t0)
#endif
li t1, 0xA0800041
sw t1, EBU_ADDSEL2(t0)
/* Need to initialize CS1 too, so as to to prevent overlapping with
* Flash bank 1.
*/
li t1, 0xBE0000F1
sw t1, EBU_ADDSEL1(t0)
#if CPU_CLOCK_RATE==150000000 /* 150 MHz clock for the MIPS core */
li t1, 0x684143FD
#else /* 100 MHz */
li t1, 0x684142BD
#endif
sw t1, EBU_BUSCON1(t0)
#if CPU_CLOCK_RATE==150000000 /* 150 MHz clock for the MIPS core */
li t0, CGU_MODUL_BASE
li t1, 0x80000017
sw t1, CGU_DIVCR(t0)
li t1, 0xC00B0001
sw t1, CGU_PLL1CR(t0)
lui t2, 0x8000
b1:
lw t1, CGU_PLL1SR(t0)
and t1, t1, t2
beq t1, zero, b1
li t1, 0x80000001
sw t1, CGU_MUXCR(t0)
#endif
/* SDRAM Initialization.
*/
li t0, MC_MODUL_BASE
/* Clear Error log registers */
sw zero, MC_ERRCAUSE(t0)
sw zero, MC_ERRADDR(t0)
/* Set clock ratio to 1:1 */
li t1, 0x03 /* clkrat=1:1, rddel=3 */
sw t1, MC_IOGP(t0)
/* Clear Power-down registers */
sw zero, MC_SELFRFSH(t0)
/* Set CAS Latency */
li t1, 0x00000020 /* CL = 2 */
sw t1, MC_MRSCODE(t0)
/* Set word width to 16 bit */
li t1, 0x2
sw t1, MC_CFGDW(t0)
/* Set CS0 to SDRAM parameters */
li t1, 0x000014C9
sw t1, MC_CFGPB0(t0)
/* Set SDRAM latency parameters */
li t1, 0x00026325 /* BC PC100 */
sw t1, MC_LATENCY(t0)
/* Set SDRAM refresh rate */
li t1, 0x00000C30 /* 4K/64ms @ 100MHz */
sw t1, MC_TREFRESH(t0)
/* Finally enable the controller */
li t1, 1
sw t1, MC_CTRLENA(t0)
j ra
nop

64
board/incaip/u-boot.lds Normal file
View File

@@ -0,0 +1,64 @@
/*
* (C) Copyright 2003
* Wolfgang Denk Engineering, <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
*/
OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
OUTPUT_ARCH(mips)
ENTRY(_start)
SECTIONS
{
. = 0x00000000;
. = ALIGN(4);
.text :
{
*(.text)
}
. = ALIGN(4);
.rodata : { *(.rodata) }
. = ALIGN(4);
.data : { *(.data) }
. = ALIGN(4);
.sdata : { *(.sdata) }
_gp = ALIGN(16);
__got_start = .;
.got : { *(.got) }
__got_end = .;
.sdata : { *(.sdata) }
uboot_end_data = .;
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
.sbss : { *(.sbss) }
.bss : { *(.bss) }
uboot_end = .;
}

View File

@@ -9,6 +9,10 @@
* (C) Copyright 2002
* Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
*
* (C) Copyright 2002
* Auerswald GmbH & Co KG, Germany
* Kai-Uwe Bloem <kai-uwe.bloem@auerswald.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*

View File

@@ -39,20 +39,28 @@
* The Innokom board has GPIO70 connected to SCLK which can be toggled
* until all chips think that their current cycles are finished.
*/
void i2c_init_board(void)
int i2c_init_board(void)
{
int i;
int i, icr;
/* set gpio pin to output */
GPDR(70) |= GPIO_bit(70);
for (i = 0; i < 11; i++) {
GPCR(70) = GPIO_bit(70);
/* disable I2C controller first, otherwhise it thinks we want to */
/* talk to the slave port... */
icr = ICR; ICR &= ~(ICR_SCLE | ICR_IUE);
/* set gpio pin low _before_ we change direction to output */
GPCR(70) = GPIO_bit(70);
/* now toggle between output=low and high-impedance */
for (i = 0; i < 20; i++) {
GPDR(70) |= GPIO_bit(70); /* output */
udelay(10);
GPSR(70) = GPIO_bit(70);
GPDR(70) &= ~GPIO_bit(70); /* input */
udelay(10);
}
/* set gpio pin to input */
GPDR(70) &= ~GPIO_bit(70);
ICR = icr;
return 0;
}
@@ -92,11 +100,9 @@ int board_init (void)
/* memory and cpu-speed are setup before relocation */
/* so we do _nothing_ here */
/* arch number of Innokom board */
gd->bd->bi_arch_number = MACH_TYPE_INNOKOM;
/* adress of boot parameters */
gd->bd->bi_boot_params = 0xa0000100;
gd->bd->bi_baudrate = CONFIG_BAUDRATE;
return 0;
}

View File

@@ -237,18 +237,17 @@ mem_init:
/* ---------------------------------------------------------------- */
/* Before accessing MDREFR we need a valid DRI field, so we set */
/* this to power on defaults + DIR field. */
/* this to power on defaults + DRI field. */
ldr r3, =CFG_MDREFR_VAL
ldr r2, =0xFFF
and r3, r3, r2
ldr r4, =0x03ca4000
orr r4, r4, r3
ldr r4, =0x03ca4fff
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
ldr r4, =0x03ca4030
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
/* Note: preserve the mdrefr value in r4 */
/* ---------------------------------------------------------------- */
/* Step 3: Initialize Synchronous Static Memory (Flash/Peripherals) */
@@ -267,18 +266,16 @@ mem_init:
/* Step 4: Initialize SDRAM */
/* ---------------------------------------------------------------- */
/* Step 4a: assert MDREFR:K1RUN and MDREFR:K2RUN and configure */
/* Step 4a: assert MDREFR:K?RUN and configure */
/* MDREFR:K1DB2 and MDREFR:K2DB2 as desired. */
orr r4, r4, #(MDREFR_K1RUN|MDREFR_K0RUN)
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
ldr r4, =CFG_MDREFR_VAL
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]
/* Step 4b: de-assert MDREFR:SLFRSH. */
bic r4, r4, #(MDREFR_SLFRSH)
bic r4, r4, #(MDREFR_SLFRSH)
str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
ldr r4, [r1, #MDREFR_OFFSET]

View File

@@ -65,21 +65,22 @@ void pci_pip405_write_regs(struct pci_controller *hose, pci_dev_t dev,
static void pci_pip405_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
{
unsigned char int_line = 0xff;
unsigned char pin;
/*
* Write pci interrupt line register
*/
if(PCI_DEV(dev)==0) /* Device0 = PPC405 -> skip */
return;
if(PCI_FUNC(dev)==0)
{
/* assuming all function 0 are using their INTA# Pin*/
int_line=PCI_IRQ_VECTOR(dev);
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin);
if ((pin == 0) || (pin > 4))
return;
int_line = ((PCI_DEV(dev) + (pin-1) + 10) % 4) + 28;
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
#ifdef DEBUG
printf("Fixup IRQ: dev %d (%x) int line %d 0x%x\n",
PCI_DEV(dev),dev,int_line,int_line);
printf("Fixup IRQ: dev %d (%x) int line %d 0x%x\n",
PCI_DEV(dev),dev,int_line,int_line);
#endif
}
}
extern void pci_405gp_init(struct pci_controller *hose);
@@ -90,11 +91,34 @@ static struct pci_controller hose = {
fixup_irq: pci_pip405_fixup_irq,
};
static void reloc_pci_cfg_table(struct pci_config_table *table)
{
DECLARE_GLOBAL_DATA_PTR;
unsigned long addr;
for (; table && table->vendor; table++) {
addr = (ulong) (table->config_device) + gd->reloc_off;
#ifdef DEBUG
printf ("device \"%d\": 0x%08lx => 0x%08lx\n",
table->device, (ulong) (table->config_device), addr);
#endif
table->config_device =
(void (*)(struct pci_controller* hose, pci_dev_t dev,
struct pci_config_table *))addr;
table->priv[0]+=gd->reloc_off;
}
}
void pci_init_board(void)
{
/*we want the ptrs to RAM not flash (ie don't use init list)*/
hose.fixup_irq = pci_pip405_fixup_irq;
hose.config_table = pci_pip405_config_table;
reloc_pci_cfg_table(hose.config_table);
#ifdef DEBUG
printf("Init PCI: fixup_irq=%p config_table=%p hose=%p\n",pci_pip405_fixup_irq,pci_pip405_config_table,hose);
#endif
pci_405gp_init(&hose);
}

View File

@@ -128,6 +128,15 @@ const sdram_t sdram_table[] = {
2, /* Address Mode = 2 */
4, /* size value */
1}, /* ECC enabled */
{ 0x03, /* Rev A, 128MByte -4 Board */
3, /* Case Latenty = 3 */
3, /* trp 20ns / 7.5 ns datain[27] */
3, /* trcd 20ns /7.5 ns (datain[29]) */
6, /* tras 44ns /7.5 ns (datain[30]) */
4, /* tcpt 44 - 20ns = 24ns */
3, /* Address Mode = 3 */
5, /* size value */
1}, /* ECC enabled */
{ 0xff, /* terminator */
0xff,
0xff,
@@ -616,9 +625,15 @@ void print_mip405_rev (void)
int last_stage_init (void)
{
/* write correct LED configuration */
if (miiphy_write (0x1, 0x14, 0x2402) != 0) {
printf ("Error writing to the PHY\n");
}
/* since LED/CFG2 is not connected on the -2,
* write to correct capability information */
if (miiphy_write (0x1, 0x4, 0x01E1) != 0) {
printf ("Error writing to the PHY\n");
}
print_mip405_rev ();
show_stdio_dev ();
check_env ();

View File

@@ -351,6 +351,7 @@ void doc_init (void)
}
#endif
#ifdef CONFIG_PCI
struct pci_controller hose;
extern void pci_mpc8250_init(struct pci_controller *);
@@ -359,3 +360,4 @@ void pci_init_board(void)
{
pci_mpc8250_init(&hose);
}
#endif

41
board/purple/Makefile Normal file
View File

@@ -0,0 +1,41 @@
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS = $(BOARD).o flash.o sconsole.o
SOBJS = memsetup.o
$(LIB): .depend $(OBJS) $(SOBJS)
$(AR) crv $@ $^
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
sinclude .depend
#########################################################################

32
board/purple/config.mk Normal file
View File

@@ -0,0 +1,32 @@
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# Purple board with MIPS 5Kc CPU core
#
# ROM version
TEXT_BASE = 0xB0000000
# RAM version
#TEXT_BASE = 0x80100000

596
board/purple/flash.c Normal file
View File

@@ -0,0 +1,596 @@
/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/inca-ip.h>
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
typedef unsigned long FLASH_PORT_WIDTH;
typedef volatile unsigned long FLASH_PORT_WIDTHV;
#define FLASH_ID_MASK 0xFFFFFFFF
#define FPW FLASH_PORT_WIDTH
#define FPWV FLASH_PORT_WIDTHV
#define ORMASK(size) ((-size) & OR_AM_MSK)
#define FLASH29_REG_ADRS(reg) ((FPWV *)PHYS_FLASH_1 + (reg))
/* FLASH29 command register addresses */
#define FLASH29_REG_FIRST_CYCLE FLASH29_REG_ADRS (0x1555)
#define FLASH29_REG_SECOND_CYCLE FLASH29_REG_ADRS (0x2aaa)
#define FLASH29_REG_THIRD_CYCLE FLASH29_REG_ADRS (0x3555)
#define FLASH29_REG_FOURTH_CYCLE FLASH29_REG_ADRS (0x4555)
#define FLASH29_REG_FIFTH_CYCLE FLASH29_REG_ADRS (0x5aaa)
#define FLASH29_REG_SIXTH_CYCLE FLASH29_REG_ADRS (0x6555)
/* FLASH29 command definitions */
#define FLASH29_CMD_FIRST 0xaaaaaaaa
#define FLASH29_CMD_SECOND 0x55555555
#define FLASH29_CMD_FOURTH 0xaaaaaaaa
#define FLASH29_CMD_FIFTH 0x55555555
#define FLASH29_CMD_SIXTH 0x10101010
#define FLASH29_CMD_SECTOR 0x30303030
#define FLASH29_CMD_PROGRAM 0xa0a0a0a0
#define FLASH29_CMD_CHIP_ERASE 0x80808080
#define FLASH29_CMD_READ_RESET 0xf0f0f0f0
#define FLASH29_CMD_AUTOSELECT 0x90909090
#define FLASH29_CMD_READ 0x70707070
#define IN_RAM_CMD_READ 0x1
#define IN_RAM_CMD_WRITE 0x2
#define FLASH_WRITE_CMD ((ulong)(flash_write_cmd) & 0x7)+0xbf008000
#define FLASH_READ_CMD ((ulong)(flash_read_cmd) & 0x7)+0xbf008000
typedef void (*FUNCPTR_CP)(ulong *source, ulong *destination, ulong nlongs);
typedef void (*FUNCPTR_RD)(int cmd, FPWV * pFA, char * string, int strLen);
typedef void (*FUNCPTR_WR)(int cmd, FPWV * pFA, FPW value);
static ulong flash_get_size(FPWV *addr, flash_info_t *info);
static int write_word(flash_info_t *info, FPWV *dest, FPW data);
static void flash_get_offsets(ulong base, flash_info_t *info);
static flash_info_t *flash_get_info(ulong base);
static void load_cmd(ulong cmd);
static ulong in_ram_cmd = 0;
/******************************************************************************
*
* Don't change the program architecture
* This architecture assure the program
* can be relocated to scratch ram
*/
static void flash_read_cmd(int cmd, FPWV * pFA, char * string, int strLen)
{
int i,j;
FPW temp,temp1;
FPWV *str;
str = (FPWV *)string;
j= strLen/4;
if(cmd == FLASH29_CMD_AUTOSELECT)
{
*(FLASH29_REG_FIRST_CYCLE) = FLASH29_CMD_FIRST;
*(FLASH29_REG_SECOND_CYCLE) = FLASH29_CMD_SECOND;
*(FLASH29_REG_THIRD_CYCLE) = FLASH29_CMD_AUTOSELECT;
}
if(cmd == FLASH29_CMD_READ)
{
i = 0;
while(i<j)
{
temp = *pFA++;
temp1 = *(int *)0xa0000000;
*(int *)0xbf0081f8 = temp1 + temp;
*str++ = temp;
i++;
}
}
if(cmd == FLASH29_CMD_READ_RESET)
{
*(FLASH29_REG_FIRST_CYCLE) = FLASH29_CMD_FIRST;
*(FLASH29_REG_SECOND_CYCLE) = FLASH29_CMD_SECOND;
*(FLASH29_REG_THIRD_CYCLE) = FLASH29_CMD_READ_RESET;
}
*(int *)0xbf0081f8 = *(int *)0xa0000000; /* dummy read switch back to sdram interface */
}
/******************************************************************************
*
* Don't change the program architecture
* This architecture assure the program
* can be relocated to scratch ram
*/
static void flash_write_cmd(int cmd, FPWV * pFA, FPW value)
{
*(FLASH29_REG_FIRST_CYCLE) = FLASH29_CMD_FIRST;
*(FLASH29_REG_SECOND_CYCLE) = FLASH29_CMD_SECOND;
if (cmd == FLASH29_CMD_SECTOR)
{
*(FLASH29_REG_THIRD_CYCLE) = FLASH29_CMD_CHIP_ERASE;
*(FLASH29_REG_FOURTH_CYCLE) = FLASH29_CMD_FOURTH;
*(FLASH29_REG_FIFTH_CYCLE) = FLASH29_CMD_FIFTH;
*pFA = FLASH29_CMD_SECTOR;
}
if (cmd == FLASH29_CMD_SIXTH)
{
*(FLASH29_REG_THIRD_CYCLE) = FLASH29_CMD_CHIP_ERASE;
*(FLASH29_REG_FOURTH_CYCLE) = FLASH29_CMD_FOURTH;
*(FLASH29_REG_FIFTH_CYCLE) = FLASH29_CMD_FIFTH;
*(FLASH29_REG_SIXTH_CYCLE) = FLASH29_CMD_SIXTH;
}
if (cmd == FLASH29_CMD_PROGRAM)
{
*(FLASH29_REG_THIRD_CYCLE) = FLASH29_CMD_PROGRAM;
*pFA = value;
}
if (cmd == FLASH29_CMD_READ_RESET)
{
*(FLASH29_REG_THIRD_CYCLE) = FLASH29_CMD_READ_RESET;
}
*(int *)0xbf0081f8 = *(int *)0xa0000000; /* dummy read switch back to sdram interface */
}
static void load_cmd(ulong cmd)
{
ulong *src;
ulong *dst;
FUNCPTR_CP absEntry;
ulong func;
if (in_ram_cmd & cmd) return;
if (cmd == IN_RAM_CMD_READ)
{
func = (ulong)flash_read_cmd;
}
else
{
func = (ulong)flash_write_cmd;
}
src = (ulong *)(func & 0xfffffff8);
dst = (ulong *)0xbf008000;
absEntry = (FUNCPTR_CP)(0xbf0081d0);
absEntry(src,dst,0x38);
in_ram_cmd = cmd;
}
/*-----------------------------------------------------------------------
* flash_init()
*
* sets up flash_info and returns size of FLASH (bytes)
*/
unsigned long flash_init (void)
{
unsigned long size = 0;
int i;
load_cmd(IN_RAM_CMD_READ);
/* Init: no FLASHes known */
for (i=0; i < CFG_MAX_FLASH_BANKS; ++i) {
ulong flashbase = PHYS_FLASH_1;
ulong * buscon = (ulong *) INCA_IP_EBU_EBU_BUSCON0;
/* Disable write protection */
*buscon &= ~INCA_IP_EBU_EBU_BUSCON1_WRDIS;
#if 1
memset(&flash_info[i], 0, sizeof(flash_info_t));
#endif
flash_info[i].size =
flash_get_size((FPW *)flashbase, &flash_info[i]);
if (flash_info[i].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx\n",
i, flash_info[i].size);
}
size += flash_info[i].size;
}
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
/* monitor protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
flash_get_info(CFG_MONITOR_BASE));
#endif
#ifdef CFG_ENV_IS_IN_FLASH
/* ENV protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR+CFG_ENV_SIZE-1,
flash_get_info(CFG_ENV_ADDR));
#endif
return size;
}
/*-----------------------------------------------------------------------
*/
static void flash_get_offsets (ulong base, flash_info_t *info)
{
int i;
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD
&& (info->flash_id & FLASH_TYPEMASK) == FLASH_AM160B) {
int bootsect_size[4]; /* number of bytes/boot sector */
int sect_size; /* number of bytes/regular sector */
bootsect_size[0] = 0x00008000;
bootsect_size[1] = 0x00004000;
bootsect_size[2] = 0x00004000;
bootsect_size[3] = 0x00010000;
sect_size = 0x00020000;
/* set sector offsets for bottom boot block type */
for (i = 0; i < info->sector_count; i++) {
info->start[i] = base;
base += i < 4 ? bootsect_size[i] : sect_size;
}
}
}
/*-----------------------------------------------------------------------
*/
static flash_info_t *flash_get_info(ulong base)
{
int i;
flash_info_t * info;
for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) {
info = & flash_info[i];
if (info->start[0] <= base && base < info->start[0] + info->size)
break;
}
return i == CFG_MAX_FLASH_BANKS ? 0 : info;
}
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t *info)
{
int i;
uchar *boottype;
uchar *bootletter;
uchar *fmt;
uchar botbootletter[] = "B";
uchar topbootletter[] = "T";
uchar botboottype[] = "bottom boot sector";
uchar topboottype[] = "top boot sector";
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return;
}
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_AMD: printf ("AMD "); break;
case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break;
case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
case FLASH_MAN_SST: printf ("SST "); break;
case FLASH_MAN_STM: printf ("STM "); break;
case FLASH_MAN_INTEL: printf ("INTEL "); break;
default: printf ("Unknown Vendor "); break;
}
/* check for top or bottom boot, if it applies */
if (info->flash_id & FLASH_BTYPE) {
boottype = botboottype;
bootletter = botbootletter;
}
else {
boottype = topboottype;
bootletter = topbootletter;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AM160B:
fmt = "29LV160B%s (16 Mbit, %s)\n";
break;
case FLASH_28F800C3B:
case FLASH_28F800C3T:
fmt = "28F800C3%s (8 Mbit, %s)\n";
break;
case FLASH_INTEL800B:
case FLASH_INTEL800T:
fmt = "28F800B3%s (8 Mbit, %s)\n";
break;
case FLASH_28F160C3B:
case FLASH_28F160C3T:
fmt = "28F160C3%s (16 Mbit, %s)\n";
break;
case FLASH_INTEL160B:
case FLASH_INTEL160T:
fmt = "28F160B3%s (16 Mbit, %s)\n";
break;
case FLASH_28F320C3B:
case FLASH_28F320C3T:
fmt = "28F320C3%s (32 Mbit, %s)\n";
break;
case FLASH_INTEL320B:
case FLASH_INTEL320T:
fmt = "28F320B3%s (32 Mbit, %s)\n";
break;
case FLASH_28F640C3B:
case FLASH_28F640C3T:
fmt = "28F640C3%s (64 Mbit, %s)\n";
break;
case FLASH_INTEL640B:
case FLASH_INTEL640T:
fmt = "28F640B3%s (64 Mbit, %s)\n";
break;
default:
fmt = "Unknown Chip Type\n";
break;
}
printf (fmt, bootletter, boottype);
printf (" Size: %ld MB in %d Sectors\n",
info->size >> 20,
info->sector_count);
printf (" Sector Start Addresses:");
for (i=0; i<info->sector_count; ++i) {
if ((i % 5) == 0) {
printf ("\n ");
}
printf (" %08lX%s", info->start[i],
info->protect[i] ? " (RO)" : " ");
}
printf ("\n");
}
/*-----------------------------------------------------------------------
*/
/*
* The following code cannot be run from FLASH!
*/
ulong flash_get_size (FPWV *addr, flash_info_t *info)
{
FUNCPTR_RD absEntry;
FPW retValue;
int flag;
load_cmd(IN_RAM_CMD_READ);
absEntry = (FUNCPTR_RD)FLASH_READ_CMD;
flag = disable_interrupts();
absEntry(FLASH29_CMD_AUTOSELECT,0,0,0);
if (flag) enable_interrupts();
udelay(100);
flag = disable_interrupts();
absEntry(FLASH29_CMD_READ, addr + 1, (char *)&retValue, sizeof(retValue));
absEntry(FLASH29_CMD_READ_RESET,0,0,0);
if (flag) enable_interrupts();
udelay(100);
switch (retValue) {
case (FPW)AMD_ID_LV160B:
info->flash_id += FLASH_AM160B;
info->sector_count = 35;
info->size = 0x00400000;
break; /* => 8 or 16 MB */
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
return (0); /* => no or unknown flash */
}
flash_get_offsets((ulong)addr, info);
return (info->size);
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
FPWV *addr;
int flag, prot, sect;
ulong start, now, last;
int rcode = 0;
FUNCPTR_WR absEntry;
load_cmd(IN_RAM_CMD_WRITE);
absEntry = (FUNCPTR_WR)FLASH_WRITE_CMD;
if ((s_first < 0) || (s_first > s_last)) {
if (info->flash_id == FLASH_UNKNOWN) {
printf ("- missing\n");
} else {
printf ("- no sectors to erase\n");
}
return 1;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AM160B:
break;
case FLASH_UNKNOWN:
default:
printf ("Can't erase unknown flash type %08lx - aborted\n",
info->flash_id);
return 1;
}
prot = 0;
for (sect=s_first; sect<=s_last; ++sect) {
if (info->protect[sect]) {
prot++;
}
}
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n",
prot);
} else {
printf ("\n");
}
last = get_timer(0);
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last && rcode == 0; sect++) {
if (info->protect[sect] != 0) /* protected, skip it */
continue;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
addr = (FPWV *)(info->start[sect]);
absEntry(FLASH29_CMD_SECTOR, addr, 0);
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
start = get_timer(0);
while ((now = get_timer(start)) <= CFG_FLASH_ERASE_TOUT) {
/* show that we're waiting */
if ((get_timer(last)) > CFG_HZ) {/* every second */
putc ('.');
last = get_timer(0);
}
}
flag = disable_interrupts();
absEntry(FLASH29_CMD_READ_RESET,0,0);
if (flag)
enable_interrupts();
}
printf (" done\n");
return rcode;
}
/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
FPW data = 0; /* 16 or 32 bit word, matches flash bus width on MPC8XX */
int bytes; /* number of bytes to program in current word */
int left; /* number of bytes left to program */
int i, res;
for (left = cnt, res = 0;
left > 0 && res == 0;
addr += sizeof(data), left -= sizeof(data) - bytes) {
bytes = addr & (sizeof(data) - 1);
addr &= ~(sizeof(data) - 1);
/* combine source and destination data so can program
* an entire word of 16 or 32 bits
*/
for (i = 0; i < sizeof(data); i++) {
data <<= 8;
if (i < bytes || i - bytes >= left )
data += *((uchar *)addr + i);
else
data += *src++;
}
res = write_word(info, (FPWV *)addr, data);
}
return (res);
}
static int write_word (flash_info_t *info, FPWV *dest, FPW data)
{
int res = 0; /* result, assume success */
FUNCPTR_WR absEntry;
int flag;
/* Check if Flash is (sufficiently) erased */
if ((*dest & data) != data) {
return (2);
}
if (info->start[0] != PHYS_FLASH_1)
{
return (3);
}
load_cmd(IN_RAM_CMD_WRITE);
absEntry = (FUNCPTR_WR)FLASH_WRITE_CMD;
flag = disable_interrupts();
absEntry(FLASH29_CMD_PROGRAM,dest,data);
if (flag) enable_interrupts();
udelay(100);
flag = disable_interrupts();
absEntry(FLASH29_CMD_READ_RESET,0,0);
if (flag) enable_interrupts();
return (res);
}

35
board/purple/memsetup.S Normal file
View File

@@ -0,0 +1,35 @@
/*
* Memory sub-system initialization code for PURPLE development board.
*
* Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
#include <asm/regdef.h>
.globl memsetup
memsetup:
j ra
nop

197
board/purple/purple.c Normal file
View File

@@ -0,0 +1,197 @@
/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <asm/inca-ip.h>
#include <asm/regdef.h>
#include <asm/mipsregs.h>
#include <asm/addrspace.h>
#include <asm/cacheops.h>
#include "sconsole.h"
#define cache_unroll(base,op) \
__asm__ __volatile__(" \
.set noreorder; \
.set mips3; \
cache %1, (%0); \
.set mips0; \
.set reorder" \
: \
: "r" (base), \
"i" (op));
typedef void (*FUNCPTR)(ulong *source, ulong *destination, ulong nlongs);
extern void asc_serial_init (void);
extern void asc_serial_putc (char);
extern void asc_serial_puts (const char *);
extern int asc_serial_getc (void);
extern int asc_serial_tstc (void);
extern void asc_serial_setbrg (void);
long int initdram(int board_type)
{
/* The only supported number of SDRAM banks is 4.
*/
#define CFG_NB 4
ulong cfgpb0 = *INCA_IP_SDRAM_MC_CFGPB0;
ulong cfgdw = *INCA_IP_SDRAM_MC_CFGDW;
int cols = cfgpb0 & 0xF;
int rows = (cfgpb0 & 0xF0) >> 4;
int dw = cfgdw & 0xF;
ulong size = (1 << (rows + cols)) * (1 << (dw - 1)) * CFG_NB;
return size;
}
int checkboard (void)
{
unsigned long chipid = *(unsigned long *)0xB800C800;
printf ("Board: Purple PLB 2800 chip version %ld, ", chipid & 0xF);
printf("CPU Speed %d MHz\n", CPU_CLOCK_RATE/1000000);
return 0;
}
int misc_init_r (void)
{
asc_serial_init ();
sconsole_putc = asc_serial_putc;
sconsole_puts = asc_serial_puts;
sconsole_getc = asc_serial_getc;
sconsole_tstc = asc_serial_tstc;
sconsole_setbrg = asc_serial_setbrg;
sconsole_flush ();
return (0);
}
/*******************************************************************************
*
* copydwords - copy one buffer to another a long at a time
*
* This routine copies the first <nlongs> longs from <source> to <destination>.
*/
static void copydwords (ulong *source, ulong *destination, ulong nlongs)
{
ulong temp,temp1;
ulong *dstend = destination + nlongs;
while (destination < dstend)
{
temp = *source++;
/* dummy read from sdram */
temp1 = *(ulong *)0xa0000000;
/* avoid optimization from compliler */
*(ulong *)0xbf0081f8 = temp1 + temp;
*destination++ = temp;
}
}
/*******************************************************************************
*
* copyLongs - copy one buffer to another a long at a time
*
* This routine copies the first <nlongs> longs from <source> to <destination>.
*/
static void copyLongs (ulong *source, ulong *destination, ulong nlongs)
{
FUNCPTR absEntry;
absEntry = (FUNCPTR)(0xbf008000+((ulong)copydwords & 0x7));
absEntry(source, destination, nlongs);
}
/*******************************************************************************
*
* programLoad - load program into ram
*
* This routine load copydwords into ram
*
*/
static void programLoad(void)
{
FUNCPTR absEntry;
ulong *src,*dst;
src = (ulong *)(TEXT_BASE + 0x428);
dst = (ulong *)0xbf0081d0;
absEntry = (FUNCPTR)(TEXT_BASE + 0x400);
absEntry(src,dst,0x6);
src = (ulong *)((ulong)copydwords & 0xfffffff8);
dst = (ulong *)0xbf008000;
absEntry(src,dst,0x38);
}
/*******************************************************************************
*
* copy_code - copy u-boot image from flash to RAM
*
* This routine is needed to solve flash problems on this board
*
*/
void copy_code (ulong dest_addr)
{
unsigned long start;
unsigned long end;
/* load copydwords into ram
*/
programLoad();
/* copy u-boot code
*/
copyLongs((ulong *)CFG_MONITOR_BASE,
(ulong *)dest_addr,
(CFG_MONITOR_LEN + 3) / 4);
/* flush caches
*/
start = KSEG0;
end = start + CFG_DCACHE_SIZE;
while(start < end) {
cache_unroll(start,Index_Writeback_Inv_D);
start += CFG_CACHELINE_SIZE;
}
start = KSEG0;
end = start + CFG_ICACHE_SIZE;
while(start < end) {
cache_unroll(start,Index_Invalidate_I);
start += CFG_CACHELINE_SIZE;
}
}

125
board/purple/sconsole.c Normal file
View File

@@ -0,0 +1,125 @@
/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <common.h>
#include "sconsole.h"
void (*sconsole_putc) (char) = 0;
void (*sconsole_puts) (const char *) = 0;
int (*sconsole_getc) (void) = 0;
int (*sconsole_tstc) (void) = 0;
void (*sconsole_setbrg) (void) = 0;
int serial_init (void)
{
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
sb->pos = 0;
sb->size = 0;
sb->max_size = CFG_SCONSOLE_SIZE - sizeof (sconsole_buffer_t);
return (0);
}
void serial_putc (char c)
{
if (sconsole_putc) {
(*sconsole_putc) (c);
} else {
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
if (c) {
sb->data[sb->pos++] = c;
if (sb->pos == sb->max_size) {
sb->pos = 0;
}
if (sb->size < sb->max_size) {
sb->size++;
}
}
}
}
void serial_puts (const char *s)
{
if (sconsole_puts) {
(*sconsole_puts) (s);
} else {
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
while (*s) {
sb->data[sb->pos++] = *s++;
if (sb->pos == sb->max_size) {
sb->pos = 0;
}
if (sb->size < sb->max_size) {
sb->size++;
}
}
}
}
int serial_getc (void)
{
if (sconsole_getc) {
return (*sconsole_getc) ();
} else {
return 0;
}
}
int serial_tstc (void)
{
if (sconsole_tstc) {
return (*sconsole_tstc) ();
} else {
return 0;
}
}
void serial_setbrg (void)
{
if (sconsole_setbrg) {
(*sconsole_setbrg) ();
}
}
void sconsole_flush (void)
{
if (sconsole_putc) {
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
unsigned int end = sb->pos < sb->size
? sb->pos + sb->max_size - sb->size
: sb->pos - sb->size;
while (sb->size) {
(*sconsole_putc) (sb->data[end++]);
if (end == sb->max_size) {
end = 0;
}
sb->size--;
}
}
}

47
board/purple/sconsole.h Normal file
View File

@@ -0,0 +1,47 @@
/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _SCONSOLE_H_
#define _SCONSOLE_H_
#include <config.h>
typedef struct sconsole_buffer_s
{
unsigned long size;
unsigned long max_size;
unsigned long pos;
char data [1];
} sconsole_buffer_t;
#define SCONSOLE_BUFFER ((sconsole_buffer_t *) CFG_SCONSOLE_ADDR)
extern void (* sconsole_putc) (char);
extern void (* sconsole_puts) (const char *);
extern int (* sconsole_getc) (void);
extern int (* sconsole_tstc) (void);
extern void (* sconsole_setbrg) (void);
extern void sconsole_flush (void);
#endif

74
board/purple/u-boot.lds Normal file
View File

@@ -0,0 +1,74 @@
/*
* (C) Copyright 2003
* Wolfgang Denk Engineering, <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
*/
OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
OUTPUT_ARCH(mips)
ENTRY(_start)
SECTIONS
{
. = 0x00000000;
. = ALIGN(4);
.text :
{
cpu/mips/start.o (.text)
board/purple/memsetup.o (.text)
cpu/mips/cache.o (.text)
common/main.o (.text)
common/dlmalloc.o (.text)
common/cmd_boot.o (.text)
lib_generic/zlib.o (.text)
. = DEFINED(env_offset) ? env_offset : .;
common/environment.o (.ppcenv)
*(.text)
}
. = ALIGN(4);
.rodata : { *(.rodata) }
. = ALIGN(4);
.data : { *(.data) }
. = ALIGN(4);
.sdata : { *(.sdata) }
_gp = ALIGN(16);
__got_start = .;
.got : { *(.got) }
__got_end = .;
.sdata : { *(.sdata) }
uboot_end_data = .;
num_got_entries = (__got_end - __got_start) >> 2;
. = ALIGN(4);
.sbss : { *(.sbss) }
.bss : { *(.bss) }
uboot_end = .;
}

View File

@@ -126,12 +126,12 @@ long int initdram (int board_type)
memctl->memc_mar = 0x00000088;
/*
* Map controller bank 1 to the SDRAM bank at
* Map controller bank 2 to the SDRAM bank at
* preliminary address - these have to be modified after the
* SDRAM size has been determined.
*/
memctl->memc_or1 = CFG_OR1_PRELIM;
memctl->memc_br1 = CFG_BR1_PRELIM;
memctl->memc_or2 = CFG_OR2_PRELIM;
memctl->memc_br2 = CFG_BR2_PRELIM;
memctl->memc_mamr = CFG_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
@@ -139,9 +139,9 @@ long int initdram (int board_type)
/* perform SDRAM initializsation sequence */
memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */
udelay (200);
memctl->memc_mcr = 0x80002230; /* SDRAM bank 0 - execute twice */
memctl->memc_mcr = 0x80004230; /* SDRAM bank 0 - execute twice */
udelay (200);
memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
@@ -153,7 +153,7 @@ long int initdram (int board_type)
*
* try 8 column mode
*/
size8 = dram_size (CFG_MAMR_8COL, (ulong *) SDRAM_BASE1_PRELIM,
size8 = dram_size (CFG_MAMR_8COL, (ulong *) SDRAM_BASE2_PRELIM,
SDRAM_MAX_SIZE);
udelay (1000);
@@ -161,13 +161,13 @@ long int initdram (int board_type)
/*
* try 9 column mode
*/
size9 = dram_size (CFG_MAMR_9COL, (ulong *) SDRAM_BASE1_PRELIM,
size9 = dram_size (CFG_MAMR_9COL, (ulong *) SDRAM_BASE2_PRELIM,
SDRAM_MAX_SIZE);
if (size8 < size9) { /* leave configuration at 9 columns */
size_b0 = size9;
/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */
} else { /* back to 8 columns */
} else { /* back to 8 columns */
size_b0 = size8;
memctl->memc_mamr = CFG_MAMR_8COL;
udelay (500);
@@ -200,6 +200,47 @@ long int initdram (int board_type)
udelay (10000);
#ifdef CONFIG_CAN_DRIVER
/* Initialize OR3 / BR3 */
memctl->memc_or3 = CFG_OR3_CAN; /* switch GPLB_5 to GPLA_5 */
memctl->memc_br3 = CFG_BR3_CAN;
/* Initialize MBMR */
memctl->memc_mbmr = MAMR_GPL_B4DIS; /* GPL_B4 works as UPWAITB */
/* Initialize UPMB for CAN: single read */
memctl->memc_mdr = 0xFFFFC004;
memctl->memc_mcr = 0x0100 | UPMB;
memctl->memc_mdr = 0x0FFFD004;
memctl->memc_mcr = 0x0101 | UPMB;
memctl->memc_mdr = 0x0FFFC000;
memctl->memc_mcr = 0x0102 | UPMB;
memctl->memc_mdr = 0x3FFFC004;
memctl->memc_mcr = 0x0103 | UPMB;
memctl->memc_mdr = 0xFFFFDC05;
memctl->memc_mcr = 0x0104 | UPMB;
/* Initialize UPMB for CAN: single write */
memctl->memc_mdr = 0xFFFCC004;
memctl->memc_mcr = 0x0118 | UPMB;
memctl->memc_mdr = 0xCFFCD004;
memctl->memc_mcr = 0x0119 | UPMB;
memctl->memc_mdr = 0x0FFCC000;
memctl->memc_mcr = 0x011A | UPMB;
memctl->memc_mdr = 0x7FFCC004;
memctl->memc_mcr = 0x011B | UPMB;
memctl->memc_mdr = 0xFFFDCC05;
memctl->memc_mcr = 0x011C | UPMB;
#endif
return (size_b0);
}
@@ -213,8 +254,8 @@ long int initdram (int board_type)
* - short between data lines
*/
static long int dram_size (long int mamr_value, long int *base,
long int maxsize)
static long int dram_size (long int mamr_value,
long int *base, long int maxsize)
{
volatile immap_t *immap = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
@@ -257,10 +298,10 @@ static long int dram_size (long int mamr_value, long int *base,
/* ------------------------------------------------------------------------- */
void r360_pwm_write (uchar reg, uchar val)
void r360_i2c_lcd_write (uchar data0, uchar data1)
{
if (i2c_write (CFG_I2C_PWM_ADDR, reg, 1, &val, 1)) {
printf ("Can't write PWM register 0x%02X.\n", reg);
if (i2c_write (CFG_I2C_LCD_ADDR, data0, 1, &data1, 1)) {
printf("Can't write lcd data 0x%02X 0x%02X.\n", data0, data1);
}
}
@@ -271,10 +312,8 @@ void r360_pwm_write (uchar reg, uchar val)
*/
/* Number of bytes returned from Keyboard Controller */
#define KEYBD_KEY_MAX 20 /* maximum key number */
#define KEYBD_DATALEN ((KEYBD_KEY_MAX + 7) / 8) /* normal key scan data */
static uchar kbd_addr = CFG_I2C_KBD_ADDR;
#define KEYBD_KEY_MAX 16 /* maximum key number */
#define KEYBD_DATALEN ((KEYBD_KEY_MAX + 7) / 8) /* normal key scan data */
static uchar *key_match (uchar *);
@@ -287,14 +326,14 @@ int misc_init_r (void)
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
i2c_read (CFG_I2C_KEY_ADDR, 0, 0, kbd_data, KEYBD_DATALEN);
for (i = 0; i < KEYBD_DATALEN; ++i) {
sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
}
setenv ("keybd", keybd_env);
str = strdup (key_match (kbd_data)); /* decode keys */
str = strdup (key_match (keybd_env)); /* decode keys */
#ifdef CONFIG_PREBOOT /* automatically configure "preboot" command on key match */
setenv ("preboot", str); /* set or delete definition */
@@ -324,16 +363,13 @@ int misc_init_r (void)
static uchar kbd_magic_prefix[] = "key_magic";
static uchar kbd_command_prefix[] = "key_cmd";
static uchar *key_match (uchar * kbd_data)
static uchar *key_match (uchar * kbd_str)
{
uchar compare[KEYBD_DATALEN];
uchar magic[sizeof (kbd_magic_prefix) + 1];
uchar cmd_name[sizeof (kbd_command_prefix) + 1];
uchar key_mask;
uchar *str, *nxt, *suffix;
uchar *str, *suffix;
uchar *kbd_magic_keys;
char *cmd;
int i;
/*
* The following string defines the characters that can pe appended
@@ -343,62 +379,48 @@ static uchar *key_match (uchar * kbd_data)
* "key_magic" is checked (old behaviour); the string "125" causes
* checks for "key_magic1", "key_magic2" and "key_magic5", etc.
*/
if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
kbd_magic_keys = "";
if ((kbd_magic_keys = getenv ("magic_keys")) != NULL) {
/* loop over all magic keys;
* use '\0' suffix in case of empty string
*/
for (suffix = kbd_magic_keys;
*suffix || suffix == kbd_magic_keys;
++suffix) {
sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
/* loop over all magic keys;
* use '\0' suffix in case of empty string
*/
for (suffix=kbd_magic_keys; *suffix || suffix==kbd_magic_keys; ++suffix) {
sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
#if 0
printf ("### Check magic \"%s\"\n", magic);
printf ("### Check magic \"%s\"\n", magic);
#endif
memcpy(compare, kbd_data, KEYBD_DATALEN);
if ((str = getenv (magic)) != 0) {
for (str = getenv(magic); str != NULL; str = (*nxt) ? nxt+1 : nxt) {
uchar c;
#if 0
printf ("### Compare \"%s\" \"%s\"\n",
kbd_str, str);
#endif
if (strcmp (kbd_str, str) == 0) {
sprintf (cmd_name, "%s%c",
kbd_command_prefix,
*suffix);
c = (uchar) simple_strtoul (str, (char **) (&nxt), 16);
if (str == nxt) /* invalid character */
break;
if (c >= KEYBD_KEY_MAX) /* bad key number */
goto next_magic;
key_mask = 0x80 >> (c % 8);
if (!(compare[c / 8] & key_mask)) /* key not pressed */
goto next_magic;
compare[c / 8] &= ~key_mask;
if ((cmd = getenv (cmd_name)) != 0) {
#if 0
printf ("### Set PREBOOT to $(%s): \"%s\"\n",
cmd_name, cmd);
#endif
return (cmd);
}
}
}
}
for (i=0; i<KEYBD_DATALEN; i++)
if (compare[i]) /* key(s) not released */
goto next_magic;
sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
cmd = getenv (cmd_name);
#if 0
printf ("### Set PREBOOT to $(%s): \"%s\"\n",
cmd_name, cmd ? cmd : "<<NULL>>");
#endif
*kbd_data = *suffix;
return (cmd);
next_magic:;
}
#if 0
printf ("### Delete PREBOOT\n");
#endif
*kbd_data = '\0';
*kbd_str = '\0';
return (NULL);
}
#endif /* CONFIG_PREBOOT */
#endif /* CONFIG_PREBOOT */
/* Read Keyboard status */
int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
@@ -410,7 +432,7 @@ int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
/* Read keys */
i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
i2c_read (CFG_I2C_KEY_ADDR, 0, 0, kbd_data, KEYBD_DATALEN);
puts ("Keys:");
for (i = 0; i < KEYBD_DATALEN; ++i) {

View File

@@ -28,6 +28,9 @@
#include <net.h> /* for eth_init() */
#include <rtc.h>
#include "sixnet.h"
#ifdef CONFIG_SHOW_BOOT_PROGRESS
# include <status_led.h>
#endif
#define ORMASK(size) ((-size) & OR_AM_MSK)
@@ -35,6 +38,22 @@ static long ram_size(ulong *, long);
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_SHOW_BOOT_PROGRESS
void show_boot_progress (int status)
{
#if defined(CONFIG_STATUS_LED)
# if defined(STATUS_LED_BOOT)
if (status == 15) {
/* ready to transfer to kernel, make sure LED is proper state */
status_led_set(STATUS_LED_BOOT, CONFIG_BOOT_LED_STATE);
}
# endif /* STATUS_LED_BOOT */
#endif /* CONFIG_STATUS_LED */
}
#endif
/* ------------------------------------------------------------------------- */
/*
* Check Board Identity:
* returns 0 if recognized, -1 if unknown
@@ -235,6 +254,9 @@ int misc_init_r (void)
volatile immap_t *immap = (immap_t *)CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
char* s;
char* e;
int reg;
bd_t *bd = gd->bd;
memctl->memc_or2 = NVRAM_OR_PRELIM;
@@ -283,18 +305,19 @@ int misc_init_r (void)
immap->im_sit.sit_rtc = tim;
}
#if 0
/* The code below is no longer valid since the prototype of
* eth_init() and eth_halt() have been changed to support
* multi-ethernet feature in U-Boot; the eth_initialize()
* routine should be called before any access to the ethernet
* callbacks.
/* set up ethernet address for SCC ethernet. If eth1addr
* is present it gets a unique address, otherwise it
* shares the FEC address.
*/
s = getenv("eth1addr");
if (s == NULL)
s = getenv("ethaddr");
for (reg=0; reg<6; ++reg) {
bd->bi_enet1addr[reg] = s ? simple_strtoul(s, &e, 16) : 0;
if (s)
s = (*e) ? e+1 : e;
}
/* FIXME - for now init ethernet to force PHY special mode */
eth_init(bd);
eth_halt();
#endif
return (0);
}
@@ -307,7 +330,7 @@ int misc_init_r (void)
*
* The memory size MUST be a power of 2 for this to work.
*
* The only memory modified is 4 bytes at offset 0. This is important
* The only memory modified is 8 bytes at offset 0. This is important
* since for the SRAM this location is reserved for autosizing, so if
* it is modified and the board is reset before ram_size() completes
* no damage is done. Normally even the memory at 0 is preserved. The
@@ -319,28 +342,27 @@ static long ram_size(ulong *base, long maxsize)
{
volatile long *test_addr;
volatile long *base_addr = base;
volatile long *flash = (volatile long*)CFG_FLASH_BASE;
ulong ofs; /* byte offset from base_addr */
ulong save; /* to make test non-destructive */
ulong junk;
ulong save2; /* to make test non-destructive */
long ramsize = -1; /* size not determined yet */
save = *base_addr; /* save value at 0 so can restore */
save2 = *(base_addr+1); /* save value at 4 so can restore */
/* is any SRAM present? */
*base_addr = 0x5555aaaa;
/* use flash read to modify data bus, since with no SRAM present
* the data bus may retain the value if our code is running
* completely in the cache.
/* It is important to drive the data bus with different data so
* it doesn't remember the value and look like RAM that isn't there.
*/
junk = *flash;
*(base_addr + 1) = 0xaaaa5555; /* use write to modify data bus */
if (*base_addr != 0x5555aaaa)
ramsize = 0; /* no RAM present, or defective */
else {
*base_addr = 0xaaaa5555;
junk = *flash; /* use flash read to modify data bus */
*(base_addr + 1) = 0x5555aaaa; /* use write to modify data bus */
if (*base_addr != 0xaaaa5555)
ramsize = 0; /* no RAM present, or defective */
}
@@ -355,6 +377,7 @@ static long ram_size(ulong *base, long maxsize)
}
*base_addr = save; /* restore value at 0 */
*(base_addr+1) = save2; /* restore value at 4 */
return (ramsize);
}
@@ -426,18 +449,21 @@ const uint sdram_table[] =
MCR_MLCF(2) | MCR_MAD(0x30)) /* twice at 0x30 */
/* MAMR values work in either mamr or mbmr */
/* 8 column SDRAM */
#define SDRAM_MAMR_8COL /* refresh at 50MHz */ \
#define SDRAM_MAMR_BASE /* refresh at 50MHz */ \
((195 << MAMR_PTA_SHIFT) | MAMR_PTAE \
| MAMR_AMA_TYPE_0 /* Address MUX 0 */ \
| MAMR_DSA_1_CYCL /* 1 cycle disable */ \
| MAMR_G0CLA_A11 /* GPL0 A11[MPC] */ \
| MAMR_RLFA_1X /* Read loop 1 time */ \
| MAMR_WLFA_1X /* Write loop 1 time */ \
| MAMR_TLFA_4X) /* Timer loop 4 times */
/* 8 column SDRAM */
#define SDRAM_MAMR_8COL (SDRAM_MAMR_BASE \
| MAMR_AMA_TYPE_0 /* Address MUX 0 */ \
| MAMR_G0CLA_A11) /* GPL0 A11[MPC] */
/* 9 column SDRAM */
#define SDRAM_MAMR_9COL ((SDRAM_MAMR_8COL & (~MAMR_G0CLA_A11)) | MAMR_G0CLA_A10)
#define SDRAM_MAMR_9COL (SDRAM_MAMR_BASE \
| MAMR_AMA_TYPE_1 /* Address MUX 1 */ \
| MAMR_G0CLA_A10) /* GPL0 A10[MPC] */
/* base address 0, 32-bit port, SDRAM UPM, valid */
#define SDRAM_BR_VALUE (BR_PS_32 | BR_MS_UPMA | BR_V)

40
board/svm_sc8xx/Makefile Normal file
View File

@@ -0,0 +1,40 @@
#
# (C) Copyright 2000
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS = $(BOARD).o flash.o
$(LIB): .depend $(OBJS)
$(AR) crv $@ $^
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
sinclude .depend
#########################################################################

24
board/svm_sc8xx/config.mk Normal file
View File

@@ -0,0 +1,24 @@
#
# (C) Copyright 2000
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
TEXT_BASE = 0x40000000

801
board/svm_sc8xx/flash.c Normal file
View File

@@ -0,0 +1,801 @@
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <mpc8xx.h>
#ifndef CFG_ENV_ADDR
#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
#endif
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
/*-----------------------------------------------------------------------
* Functions
*/
static int write_word (flash_info_t *info, ulong dest, ulong data);
#if 0
static ulong flash_get_size (vu_long *addr, flash_info_t *info);
static void flash_get_offsets (ulong base, flash_info_t *info);
#endif
#ifdef CONFIG_BOOT_8B
static int my_in_8( unsigned char *addr);
static void my_out_8( unsigned char *addr, int val);
#endif
#ifdef CONFIG_BOOT_16B
static int my_in_be16( unsigned short *addr);
static void my_out_be16( unsigned short *addr, int val);
#endif
#ifdef CONFIG_BOOT_32B
static unsigned my_in_be32( unsigned *addr);
static void my_out_be32( unsigned *addr, int val);
#endif
/*-----------------------------------------------------------------------
*/
unsigned long flash_init (void)
{
volatile immap_t *immap = (immap_t *)CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
unsigned long size_b0, size_b1;
int i;
size_b0=0;
size_b1=0;
/* Init: no FLASHes known */
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
}
#ifdef CFG_DOC_BASE
#ifndef CONFIG_FEL8xx_AT
memctl->memc_or5 = (0xffff8000 | CFG_OR_TIMING_DOC ); /* 32k bytes */
memctl->memc_br5 = CFG_DOC_BASE | 0x401;
#else
memctl->memc_or3 = (0xffff8000 | CFG_OR_TIMING_DOC ); /* 32k bytes */
memctl->memc_br3 = CFG_DOC_BASE | 0x401;
#endif
#endif
#if defined( CONFIG_BOOT_8B)
// memctl->memc_or0 = 0xfff80ff4; /* 4MB bytes */
// memctl->memc_br0 = 0x40000401;
size_b0 = 0x80000; /* 512 K */
flash_info[0].flash_id = FLASH_MAN_AMD | FLASH_AM040;
flash_info[0].sector_count = 8;
flash_info[0].size = 0x00080000;
/* set up sector start address table */
for (i = 0; i < flash_info[0].sector_count; i++)
flash_info[0].start[i] = 0x40000000 + (i * 0x10000);
/* protect all sectors */
for (i = 0; i < flash_info[0].sector_count; i++)
flash_info[0].protect[i] = 0x1;
#elif defined (CONFIG_BOOT_16B)
// memctl->memc_or0 = 0xfff80ff4; /* 4MB bytes */
// memctl->memc_br0 = 0x40000401;
size_b0 = 0x400000; /* 4MB , assume AMD29LV320B */
flash_info[0].flash_id = FLASH_MAN_AMD | FLASH_AM320B;
flash_info[0].sector_count = 67;
flash_info[0].size = 0x00400000;
/* set up sector start address table */
flash_info[0].start[0] = 0x40000000 ;
flash_info[0].start[1] = 0x40000000 + 0x4000;
flash_info[0].start[2] = 0x40000000 + 0x6000;
flash_info[0].start[3] = 0x40000000 + 0x8000;
for (i = 4; i < flash_info[0].sector_count; i++)
flash_info[0].start[i] = 0x40000000 + 0x10000 + ((i-4) * 0x10000);
/* protect all sectors */
for (i = 0; i < flash_info[0].sector_count; i++)
flash_info[0].protect[i] = 0x1;
#endif
#ifdef CONFIG_BOOT_32B
/* Static FLASH Bank configuration here - FIXME XXX */
size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
size_b0, size_b0<<20);
}
size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
if (size_b1 > size_b0) {
printf ("## ERROR: "
"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
size_b1, size_b1<<20,
size_b0, size_b0<<20
);
flash_info[0].flash_id = FLASH_UNKNOWN;
flash_info[1].flash_id = FLASH_UNKNOWN;
flash_info[0].sector_count = -1;
flash_info[1].sector_count = -1;
flash_info[0].size = 0;
flash_info[1].size = 0;
return (0);
}
/* Remap FLASH according to real size */
memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & OR_AM_MSK);
memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V;
/* Re-do sizing to get full correct info */
size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
/* monitor protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
&flash_info[0]);
#endif
#ifdef CFG_ENV_IS_IN_FLASH
/* ENV protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR+CFG_ENV_SIZE-1,
&flash_info[0]);
#endif
if (size_b1) {
memctl->memc_or1 = CFG_OR_TIMING_FLASH | (-size_b1 & 0xFFFF8000);
memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) |
BR_MS_GPCM | BR_V;
/* Re-do sizing to get full correct info */
size_b1 = flash_get_size((vu_long *)(CFG_FLASH_BASE + size_b0),
&flash_info[1]);
flash_get_offsets (CFG_FLASH_BASE + size_b0, &flash_info[1]);
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
/* monitor protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
&flash_info[1]);
#endif
#ifdef CFG_ENV_IS_IN_FLASH
/* ENV protection ON by default */
flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR+CFG_ENV_SIZE-1,
&flash_info[1]);
#endif
} else {
memctl->memc_br1 = 0; /* invalidate bank */
flash_info[1].flash_id = FLASH_UNKNOWN;
flash_info[1].sector_count = -1;
}
flash_info[0].size = size_b0;
flash_info[1].size = size_b1;
#endif /* CONFIG_BOOT_32B */
return (size_b0 + size_b1);
}
#if 0
/*-----------------------------------------------------------------------
*/
static void flash_get_offsets (ulong base, flash_info_t *info)
{
int i;
/* set up sector start address table */
if (info->flash_id & FLASH_BTYPE) {
/* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00008000;
info->start[2] = base + 0x0000C000;
info->start[3] = base + 0x00010000;
for (i = 4; i < info->sector_count; i++) {
info->start[i] = base + (i * 0x00020000) - 0x00060000;
}
} else {
/* set sector offsets for top boot block type */
i = info->sector_count - 1;
info->start[i--] = base + info->size - 0x00008000;
info->start[i--] = base + info->size - 0x0000C000;
info->start[i--] = base + info->size - 0x00010000;
for (; i >= 0; i--) {
info->start[i] = base + i * 0x00020000;
}
}
}
#endif
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t *info)
{
int i;
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return;
}
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_AMD: printf ("AMD "); break;
case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
default: printf ("Unknown Vendor "); break;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
break;
case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
break;
case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
break;
case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
break;
case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
break;
case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
break;
case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
break;
case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
break;
default: printf ("Unknown Chip Type\n");
break;
}
printf (" Size: %ld MB in %d Sectors\n",
info->size >> 20, info->sector_count);
printf (" Sector Start Addresses:");
for (i=0; i<info->sector_count; ++i) {
if ((i % 5) == 0)
printf ("\n ");
printf (" %08lX%s",
info->start[i],
info->protect[i] ? " (RO)" : " "
);
}
printf ("\n");
return;
}
/*-----------------------------------------------------------------------
*/
/*-----------------------------------------------------------------------
*/
/*
* The following code cannot be run from FLASH!
*/
#if 0
static ulong flash_get_size (vu_long *addr, flash_info_t *info)
{
short i;
ulong value;
ulong base = (ulong)addr;
/* Write auto select command: read Manufacturer ID */
addr[0x0555] = 0x00AA00AA;
addr[0x02AA] = 0x00550055;
addr[0x0555] = 0x00900090;
value = addr[0];
switch (value) {
case AMD_MANUFACT:
info->flash_id = FLASH_MAN_AMD;
break;
case FUJ_MANUFACT:
info->flash_id = FLASH_MAN_FUJ;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
return (0); /* no or unknown flash */
}
value = addr[1]; /* device ID */
switch (value) {
case AMD_ID_LV400T:
info->flash_id += FLASH_AM400T;
info->sector_count = 11;
info->size = 0x00100000;
break; /* => 1 MB */
case AMD_ID_LV400B:
info->flash_id += FLASH_AM400B;
info->sector_count = 11;
info->size = 0x00100000;
break; /* => 1 MB */
case AMD_ID_LV800T:
info->flash_id += FLASH_AM800T;
info->sector_count = 19;
info->size = 0x00200000;
break; /* => 2 MB */
case AMD_ID_LV800B:
info->flash_id += FLASH_AM800B;
info->sector_count = 19;
info->size = 0x00200000;
break; /* => 2 MB */
case AMD_ID_LV160T:
info->flash_id += FLASH_AM160T;
info->sector_count = 35;
info->size = 0x00400000;
break; /* => 4 MB */
case AMD_ID_LV160B:
info->flash_id += FLASH_AM160B;
info->sector_count = 35;
info->size = 0x00400000;
break; /* => 4 MB */
#if 0 /* enable when device IDs are available */
case AMD_ID_LV320T:
info->flash_id += FLASH_AM320T;
info->sector_count = 67;
info->size = 0x00800000;
break; /* => 8 MB */
case AMD_ID_LV320B:
info->flash_id += FLASH_AM320B;
info->sector_count = 67;
info->size = 0x00800000;
break; /* => 8 MB */
#endif
default:
info->flash_id = FLASH_UNKNOWN;
return (0); /* => no or unknown flash */
}
/* set up sector start address table */
if (info->flash_id & FLASH_BTYPE) {
/* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00008000;
info->start[2] = base + 0x0000C000;
info->start[3] = base + 0x00010000;
for (i = 4; i < info->sector_count; i++) {
info->start[i] = base + (i * 0x00020000) - 0x00060000;
}
} else {
/* set sector offsets for top boot block type */
i = info->sector_count - 1;
info->start[i--] = base + info->size - 0x00008000;
info->start[i--] = base + info->size - 0x0000C000;
info->start[i--] = base + info->size - 0x00010000;
for (; i >= 0; i--) {
info->start[i] = base + i * 0x00020000;
}
}
/* check for protected sectors */
for (i = 0; i < info->sector_count; i++) {
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
/* D0 = 1 if protected */
addr = (volatile unsigned long *)(info->start[i]);
info->protect[i] = addr[2] & 1;
}
/*
* Prevent writes to uninitialized FLASH.
*/
if (info->flash_id != FLASH_UNKNOWN) {
addr = (volatile unsigned long *)info->start[0];
*addr = 0x00F000F0; /* reset bank */
}
return (info->size);
}
#endif
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
vu_long *addr = (vu_long*)(info->start[0]);
int flag, prot, sect, l_sect,in_mid,in_did;
ulong start, now, last;
if ((s_first < 0) || (s_first > s_last)) {
if (info->flash_id == FLASH_UNKNOWN) {
printf ("- missing\n");
} else {
printf ("- no sectors to erase\n");
}
return 1;
}
if ((info->flash_id == FLASH_UNKNOWN) ||
(info->flash_id > FLASH_AMD_COMP)) {
printf ("Can't erase unknown flash type %08lx - aborted\n",
info->flash_id);
return 1;
}
prot = 0;
for (sect=s_first; sect<=s_last; ++sect) {
if (info->protect[sect]) {
prot++;
}
}
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n",
prot);
} else {
printf ("\n");
}
l_sect = -1;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
#if defined (CONFIG_BOOT_8B )
my_out_8( (unsigned char * ) ((ulong)addr+0x555) , 0xaa );
my_out_8( (unsigned char * ) ((ulong)addr+0x2aa) , 0x55 );
my_out_8( (unsigned char * ) ((ulong)addr+0x555) , 0x90 );
in_mid=my_in_8( (unsigned char * ) addr );
in_did=my_in_8( (unsigned char * ) ((ulong)addr+1) );
printf(" man ID=0x%x, dev ID=0x%x.\n",in_mid,in_did );
my_out_8( (unsigned char *)addr, 0xf0);
udelay(1);
my_out_8( (unsigned char *) ((ulong)addr+0x555),0xaa );
my_out_8( (unsigned char *) ((ulong)addr+0x2aa),0x55 );
my_out_8( (unsigned char *) ((ulong)addr+0x555),0x80 );
my_out_8( (unsigned char *) ((ulong)addr+0x555),0xaa );
my_out_8( (unsigned char *) ((ulong)addr+0x2aa),0x55 );
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr = (vu_long*)(info->start[sect]);
//addr[0] = 0x00300030;
my_out_8( (unsigned char *) ((ulong)addr),0x30 );
l_sect = sect;
}
}
#elif defined(CONFIG_BOOT_16B )
my_out_be16( (unsigned short * ) ((ulong)addr+ (0xaaa)) , 0xaa );
my_out_be16( (unsigned short * ) ((ulong)addr+ (0x554)) , 0x55 );
my_out_be16( (unsigned short * ) ((ulong)addr+ (0xaaa)) , 0x90 );
in_mid=my_in_be16( (unsigned short * ) addr );
in_did=my_in_be16 ( (unsigned short * ) ((ulong)addr+2) );
printf(" man ID=0x%x, dev ID=0x%x.\n",in_mid,in_did );
my_out_be16( (unsigned short *)addr, 0xf0);
udelay(1);
my_out_be16( (unsigned short *) ((ulong)addr+ 0xaaa),0xaa );
my_out_be16( (unsigned short *) ((ulong)addr+0x554),0x55 );
my_out_be16( (unsigned short *) ((ulong)addr+0xaaa),0x80 );
my_out_be16( (unsigned short *) ((ulong)addr+0xaaa),0xaa );
my_out_be16( (unsigned short *) ((ulong)addr+0x554),0x55 );
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr = (vu_long*)(info->start[sect]);
my_out_be16( (unsigned short *) ((ulong)addr),0x30 );
l_sect = sect;
}
}
#elif defined(CONFIG_BOOT_32B)
my_out_be32( (unsigned * ) ((ulong)addr+0x1554) , 0xaa );
my_out_be32( (unsigned * ) ((ulong)addr+0xaa8) , 0x55 );
my_out_be32( (unsigned *) ((ulong)addr+0x1554) , 0x90 );
in_mid=my_in_be32( (unsigned * ) addr );
in_did=my_in_be32( (unsigned * ) ((ulong)addr+4) );
printf(" man ID=0x%x, dev ID=0x%x.\n",in_mid,in_did );
my_out_be32( (unsigned *)addr, 0xf0);
udelay(1);
my_out_be32( (unsigned *) ((ulong)addr+0x1554),0xaa );
my_out_be32( (unsigned *) ((ulong)addr+0xaa8),0x55 );
my_out_be32( (unsigned *) ((ulong)addr+0x1554),0x80 );
my_out_be32( (unsigned *) ((ulong)addr+0x1554),0xaa );
my_out_be32( (unsigned *) ((ulong)addr+0xaa8),0x55 );
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr = (vu_long*)(info->start[sect]);
my_out_be32( (unsigned *) ((ulong)addr),0x00300030 );
l_sect = sect;
}
}
#else
# error CONFIG_BOOT_(size)B missing.
#endif
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
/* wait at least 80us - let's wait 1 ms */
udelay (1000);
/*
* We wait for the last triggered sector
*/
if (l_sect < 0)
goto DONE;
start = get_timer (0);
last = start;
addr = (vu_long*)(info->start[l_sect]);
#if defined (CONFIG_BOOT_8B)
while ( (my_in_8((unsigned char *)addr) & 0x80) != 0x80 )
#elif defined(CONFIG_BOOT_16B )
while ( (my_in_be16((unsigned short *)addr) & 0x0080) != 0x0080 )
#elif defined(CONFIG_BOOT_32B)
while ( (my_in_be32((unsigned *)addr) & 0x00800080) != 0x00800080 )
#else
# error CONFIG_BOOT_(size)B missing.
#endif
{
if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
printf ("Timeout\n");
return 1;
}
/* show that we're waiting */
if ((now - last) > 1000) { /* every second */
putc ('.');
last = now;
}
}
DONE:
/* reset to read mode */
addr = (volatile unsigned long *)info->start[0];
#if defined (CONFIG_BOOT_8B)
my_out_8( (unsigned char *)addr, 0xf0);
#elif defined(CONFIG_BOOT_16B )
my_out_be16( (unsigned short * ) addr , 0x00f0 );
#elif defined(CONFIG_BOOT_32B)
my_out_be32 ( (unsigned *)addr, 0x00F000F0 ); /* reset bank */
#else
# error CONFIG_BOOT_(size)B missing.
#endif
printf (" done\n");
return 0;
}
/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
ulong cp, wp, data;
int i, l, rc;
wp = (addr & ~3); /* get lower word aligned address */
/*
* handle unaligned start bytes
*/
if ((l = addr - wp) != 0) {
data = 0;
for (i=0, cp=wp; i<l; ++i, ++cp) {
data = (data << 8) | (*(uchar *)cp);
}
for (; i<4 && cnt>0; ++i) {
data = (data << 8) | *src++;
--cnt;
++cp;
}
for (; cnt==0 && i<4; ++i, ++cp) {
data = (data << 8) | (*(uchar *)cp);
}
if ((rc = write_word(info, wp, data)) != 0) {
return (rc);
}
wp += 4;
}
/*
* handle word aligned part
*/
while (cnt >= 4) {
data = 0;
for (i=0; i<4; ++i) {
data = (data << 8) | *src++;
}
if ((rc = write_word(info, wp, data)) != 0) {
return (rc);
}
wp += 4;
cnt -= 4;
}
if (cnt == 0) {
return (0);
}
/*
* handle unaligned tail bytes
*/
data = 0;
for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
data = (data << 8) | *src++;
--cnt;
}
for (; i<4; ++i, ++cp) {
data = (data << 8) | (*(uchar *)cp);
}
return (write_word(info, wp, data));
}
/*-----------------------------------------------------------------------
* Write a word to Flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
static int write_word (flash_info_t *info, ulong dest, ulong data)
{
ulong addr = (ulong)(info->start[0]);
ulong start,last;
int flag;
ulong i;
int data_short[2];
/* Check if Flash is (sufficiently) erased */
if ( ((ulong) *(ulong *)dest & data) != data ) {
return (2);
}
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
#if defined(CONFIG_BOOT_8B)
#ifdef DEBUG
{
int in_mid,in_did;
my_out_8( (unsigned char * ) (addr+0x555) , 0xaa );
my_out_8( (unsigned char * ) (addr+0x2aa) , 0x55 );
my_out_8( (unsigned char * ) (addr+0x555) , 0x90 );
in_mid=my_in_8( (unsigned char * ) addr );
in_did=my_in_8( (unsigned char * ) (addr+1) );
printf(" man ID=0x%x, dev ID=0x%x.\n",in_mid,in_did );
my_out_8( (unsigned char *)addr, 0xf0);
udelay(1);
}
#endif
{
int data_ch[4];
data_ch[0]=(int ) ((data>>24) & 0xff);
data_ch[1]=(int ) ((data>>16) &0xff );
data_ch[2]=(int ) ((data >>8) & 0xff);
data_ch[3]=(int ) (data & 0xff);
for (i=0;i<4;i++ ){
my_out_8( (unsigned char *) (addr+0x555),0xaa);
my_out_8((unsigned char *) (addr+0x2aa),0x55);
my_out_8( (unsigned char *) (addr+0x555),0xa0);
my_out_8((unsigned char *) (dest+i) ,data_ch[i]);
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
start = get_timer (0);
last = start;
while( ( my_in_8((unsigned char *) (dest+i)) ) != ( data_ch[i] ) ) {
if (get_timer(start) > CFG_FLASH_WRITE_TOUT ) {
return 1;
}
}
}/* for */
}
#elif defined( CONFIG_BOOT_16B)
data_short[0]=(int) (data>>16) & 0xffff;
data_short[1]=(int ) data & 0xffff ;
for (i=0;i<2;i++ ){
my_out_be16( (unsigned short *) ((ulong)addr+ 0xaaa),0xaa );
my_out_be16( (unsigned short *) ((ulong)addr+ 0x554),0x55 );
my_out_be16( (unsigned short *) ((ulong)addr+ 0xaaa),0xa0 );
my_out_be16( (unsigned short *) (dest+(i*2)) ,data_short[i]);
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
start = get_timer (0);
last = start;
while( ( my_in_be16((unsigned short *) (dest+(i*2))) ) != ( data_short[i] ) ) {
if (get_timer(start) > CFG_FLASH_WRITE_TOUT ) {
return 1;
}
}
}
#elif defined( CONFIG_BOOT_32B)
addr[0x0555] = 0x00AA00AA;
addr[0x02AA] = 0x00550055;
addr[0x0555] = 0x00A000A0;
*((vu_long *)dest) = data;
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
/* data polling for D7 */
start = get_timer (0);
while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) {
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
return (1);
}
}
#endif
return (0);
}
#ifdef CONFIG_BOOT_8B
static int my_in_8 ( unsigned char *addr)
{
int ret;
__asm__ __volatile__("lbz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
return ret;
}
static void my_out_8 ( unsigned char *addr, int val)
{
__asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
}
#endif
#ifdef CONFIG_BOOT_16B
static int my_in_be16( unsigned short *addr)
{
int ret;
__asm__ __volatile__("lhz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
return ret;
}
static void my_out_be16( unsigned short *addr, int val)
{
__asm__ __volatile__("sth%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
}
#endif
#ifdef CONFIG_BOOT_32B
static unsigned my_in_be32( unsigned *addr)
{
unsigned ret;
__asm__ __volatile__("lwz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
return ret;
}
static void my_out_be32( unsigned *addr, int val)
{
__asm__ __volatile__("stw%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
}
#endif

163
board/svm_sc8xx/svm_sc8xx.c Normal file
View File

@@ -0,0 +1,163 @@
/*
* (C) Copyright 2000, 2001, 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <mpc8xx.h>
/* ------------------------------------------------------------------------- */
const uint sdram_table[] =
{
/*-----------------
UPM A contents:
----------------- */
/*---------------------------------------------------
Read Single Beat Cycle. Offset 0 in the RAM array.
---------------------------------------------------- */
0x1f07fc04, 0xeeaefc04, 0x11adfc04, 0xefbbbc00 ,
0x1ff77c47, 0x1ff77c35, 0xefeabc34, 0x1fb57c35 ,
/*------------------------------------------------
Read Burst Cycle. Offset 0x8 in the RAM array.
------------------------------------------------ */
0x1f07fc04, 0xeeaefc04, 0x10adfc04, 0xf0affc00,
0xf0affc00, 0xf1affc00, 0xefbbbc00, 0x1ff77c47,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
/*-------------------------------------------------------
Write Single Beat Cycle. Offset 0x18 in the RAM array
------------------------------------------------------- */
0x1f27fc04, 0xeeaebc00, 0x01b93c04, 0x1ff77c47 ,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff ,
/*-------------------------------------------------
Write Burst Cycle. Offset 0x20 in the RAM array
------------------------------------------------- */
0x1f07fc04, 0xeeaebc00, 0x10ad7c00, 0xf0affc00,
0xf0affc00, 0xe1bbbc04, 0x1ff77c47, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff ,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff ,
/*------------------------------------------------------------------------
Periodic Timer Expired. For DRAM refresh. Offset 0x30 in the RAM array
------------------------------------------------------------------------ */
0x1ff5fc84, 0xfffffc04, 0xfffffc04, 0xfffffc04,
0xfffffc84, 0xfffffc07, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff ,
/*-----------
* Exception:
* ----------- */
0x7ffefc07, 0xffffffff, 0xffffffff, 0xffffffff ,
};
/* ------------------------------------------------------------------------- */
/*
* Check Board Identity:
*
* Test ID string (SVM8...)
*
* Return 1 for "SC8xx" type, 0 else.
*/
int checkboard (void)
{
unsigned char *s = getenv("serial#");
int board_type;
if (!s || strncmp(s, "SVM8", 4)) {
printf ("### No HW ID - assuming SVM SC8xx\n");
return (0);
}
board_type = 1;
for (; *s; ++s) {
if (*s == ' ')
break;
putc (*s);
}
putc ('\n');
return (0);
}
/* ------------------------------------------------------------------------- */
long int initdram (int board_type)
{
volatile immap_t *immap = (immap_t *)CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
long int size_b0 = 0;
upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
memctl->memc_mptpr = CFG_MPTPR;
#if defined (CONFIG_SDRAM_16M)
memctl->memc_mamr = 0x00802114 | CFG_MxMR_PTx;
memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
udelay(1);
memctl->memc_mcr = 0x80002830;
udelay(1);
memctl->memc_mar = 0x00000088;
udelay(1);
memctl->memc_mcr = 0x80002106;
udelay(1);
memctl->memc_or1 = 0xff000a00;
size_b0 = 0x01000000;
#elif defined (CONFIG_SDRAM_32M)
memctl->memc_mamr = 0x00904114 | CFG_MxMR_PTx;
memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
udelay(1);
memctl->memc_mcr = 0x80002830;
udelay(1);
memctl->memc_mar = 0x00000088;
udelay(1);
memctl->memc_mcr = 0x80002106;
udelay(1);
memctl->memc_or1 = 0xfe000a00;
size_b0 = 0x02000000;
#elif defined (CONFIG_SDRAM_64M)
memctl->memc_mamr = 0x00a04114 | CFG_MxMR_PTx;
memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
udelay(1);
memctl->memc_mcr = 0x80002830;
udelay(1);
memctl->memc_mar = 0x00000088;
udelay(1);
memctl->memc_mcr = 0x80002106;
udelay(1);
memctl->memc_or1 = 0xfc000a00;
size_b0 = 0x04000000;
#else
#error SDRAM size configuration missing.
#endif
memctl->memc_br1 = 0x00000081;
udelay(200);
return (size_b0 );
}
#if (CONFIG_COMMANDS & CFG_CMD_DOC)
extern void doc_probe (ulong physadr);
void doc_init (void)
{
doc_probe (CFG_DOC_BASE);
}
#endif

136
board/svm_sc8xx/u-boot.lds Normal file
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@@ -0,0 +1,136 @@
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_ARCH(powerpc)
SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = + SIZEOF_HEADERS;
.interp : { *(.interp) }
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.rel.text : { *(.rel.text) }
.rela.text : { *(.rela.text) }
.rel.data : { *(.rel.data) }
.rela.data : { *(.rela.data) }
.rel.rodata : { *(.rel.rodata) }
.rela.rodata : { *(.rela.rodata) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.ctors : { *(.rel.ctors) }
.rela.ctors : { *(.rela.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rela.dtors : { *(.rela.dtors) }
.rel.bss : { *(.rel.bss) }
.rela.bss : { *(.rela.bss) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
.init : { *(.init) }
.plt : { *(.plt) }
.text :
{
/* WARNING - the following is hand-optimized to fit within */
/* the sector layout of our flash chips! XXX FIXME XXX */
cpu/mpc8xx/start.o (.text)
cpu/mpc8xx/traps.o (.text)
common/dlmalloc.o (.text)
lib_ppc/ppcstring.o (.text)
lib_generic/vsprintf.o (.text)
lib_generic/crc32.o (.text)
lib_generic/zlib.o (.text)
lib_ppc/cache.o (.text)
lib_ppc/time.o (.text)
. = env_offset;
common/environment.o (.ppcenv)
*(.text)
*(.fixup)
*(.got1)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(.rodata)
*(.rodata1)
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
_erotext = .;
PROVIDE (erotext = .);
.reloc :
{
*(.got)
_GOT2_TABLE_ = .;
*(.got2)
_FIXUP_TABLE_ = .;
*(.fixup)
}
__got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
__fixup_entries = (. - _FIXUP_TABLE_)>>2;
.data :
{
*(.data)
*(.data1)
*(.sdata)
*(.sdata2)
*(.dynamic)
CONSTRUCTORS
}
_edata = .;
PROVIDE (edata = .);
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
. = ALIGN(256);
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__init_end = .;
__bss_start = .;
.bss :
{
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
}
_end = . ;
PROVIDE (end = .);
}

View File

@@ -0,0 +1,131 @@
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_ARCH(powerpc)
SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = + SIZEOF_HEADERS;
.interp : { *(.interp) }
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.rel.text : { *(.rel.text) }
.rela.text : { *(.rela.text) }
.rel.data : { *(.rel.data) }
.rela.data : { *(.rela.data) }
.rel.rodata : { *(.rel.rodata) }
.rela.rodata : { *(.rela.rodata) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.ctors : { *(.rel.ctors) }
.rela.ctors : { *(.rela.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rela.dtors : { *(.rela.dtors) }
.rel.bss : { *(.rel.bss) }
.rela.bss : { *(.rela.bss) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
.init : { *(.init) }
.plt : { *(.plt) }
.text :
{
/* WARNING - the following is hand-optimized to fit within */
/* the sector layout of our flash chips! XXX FIXME XXX */
cpu/mpc8xx/start.o (.text)
common/dlmalloc.o (.text)
lib_generic/vsprintf.o (.text)
lib_generic/crc32.o (.text)
. = env_offset;
common/environment.o(.text)
*(.text)
*(.fixup)
*(.got1)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(.rodata)
*(.rodata1)
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x0FFF) & 0xFFFFF000;
_erotext = .;
PROVIDE (erotext = .);
.reloc :
{
*(.got)
_GOT2_TABLE_ = .;
*(.got2)
_FIXUP_TABLE_ = .;
*(.fixup)
}
__got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
__fixup_entries = (. - _FIXUP_TABLE_)>>2;
.data :
{
*(.data)
*(.data1)
*(.sdata)
*(.sdata2)
*(.dynamic)
CONSTRUCTORS
}
_edata = .;
PROVIDE (edata = .);
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
. = ALIGN(4096);
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(4096);
__init_end = .;
__bss_start = .;
.bss :
{
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
}
_end = . ;
PROVIDE (end = .);
}

View File

@@ -486,7 +486,11 @@ int drv_vfd_init(void)
/* frame buffer endadr */
rLCDSADDR2 = (gd->fb_base + FRAME_BUF_SIZE) >> 1;
rLCDSADDR3 = ((256/4));
rLCDCON2 = 0x000DC000;
rLCDCON2 = 0x000DC000;
if(gd->vfd_type == VFD_TYPE_MN11236)
rLCDCON2 = 37 << 14; /* MN11236: 38 lines */
else
rLCDCON2 = 55 << 14; /* T119C: 56 lines */
rLCDCON3 = 0x0051000A;
rLCDCON4 = 0x00000001;
if (gd->vfd_type && vfd_inv_data)

47
board/wepep250/Makefile Normal file
View File

@@ -0,0 +1,47 @@
#
# (C) Copyright 2000, 2002
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS := wepep250.o flash.o
SOBJS := memsetup.o
$(LIB): $(OBJS) $(SOBJS)
$(AR) crv $@ $^
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
-include .depend
#########################################################################

11
board/wepep250/config.mk Normal file
View File

@@ -0,0 +1,11 @@
#
# This is config used for compilation of WEP EP250 sources
#
# You might change location of U-Boot in memory by setting right TEXT_BASE.
# This allows for example having one copy located at the end of ram and stored
# in flash device and later on while developing use other location to test
# the code in RAM device only.
#
TEXT_BASE = 0xa1fe0000
#TEXT_BASE = 0xa1001000

321
board/wepep250/flash.c Normal file
View File

@@ -0,0 +1,321 @@
/*
* Copyright (C) 2003 ETC s.r.o.
*
* This code was inspired by Marius Groeger and Kyle Harris code
* available in other board ports for U-Boot
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Written by Peter Figuli <peposh@etc.sk>, 2003.
*
*/
#include <common.h>
#include "intel.h"
/*
* This code should handle CFI FLASH memory device. This code is very
* minimalistic approach without many essential error handling code as well.
* Because U-Boot actually is missing smart handling of FLASH device,
* we just set flash_id to anything else to FLASH_UNKNOW, so common code
* can call us without any restrictions.
* TODO: Add CFI Query, to be able to determine FLASH device.
* TODO: Add error handling code
* NOTE: This code was tested with BUS_WIDTH 4 and ITERLEAVE 2 only, but
* hopefully may work with other configurations.
*/
#if ( WEP_FLASH_BUS_WIDTH == 1 )
# define FLASH_BUS vu_char
# if ( WEP_FLASH_INTERLEAVE == 1 )
# define FLASH_CMD( x ) x
# else
# error "With 8bit bus only one chip is allowed"
# endif
#elif ( WEP_FLASH_BUS_WIDTH == 2 )
# define FLASH_BUS vu_short
# if ( WEP_FLASH_INTERLEAVE == 1 )
# define FLASH_CMD( x ) x
# elif ( WEP_FLASH_INTERLEAVE == 2 )
# define FLASH_CMD( x ) (( x << 8 )| x )
# else
# error "With 16bit bus only 1 or 2 chip(s) are allowed"
# endif
#elif ( WEP_FLASH_BUS_WIDTH == 4 )
# define FLASH_BUS vu_long
# if ( WEP_FLASH_INTERLEAVE == 1 )
# define FLASH_CMD( x ) x
# elif ( WEP_FLASH_INTERLEAVE == 2 )
# define FLASH_CMD( x ) (( x << 16 )| x )
# elif ( WEP_FLASH_INTERLEAVE == 4 )
# define FLASH_CMD( x ) (( x << 24 )|( x << 16 ) ( x << 8 )| x )
# else
# error "With 32bit bus only 1,2 or 4 chip(s) are allowed"
# endif
#else
# error "Flash bus width might be 1,2,4 for 8,16,32 bit configuration"
#endif
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
static FLASH_BUS flash_status_reg (void)
{
FLASH_BUS *addr = (FLASH_BUS *) 0;
*addr = FLASH_CMD (CFI_INTEL_CMD_READ_STATUS_REGISTER);
return *addr;
}
static int flash_ready (ulong timeout)
{
int ok = 1;
reset_timer_masked ();
while ((flash_status_reg () & FLASH_CMD (CFI_INTEL_SR_READY)) !=
FLASH_CMD (CFI_INTEL_SR_READY)) {
if (get_timer_masked () > timeout && timeout != 0) {
ok = 0;
break;
}
}
return ok;
}
#if ( CFG_MAX_FLASH_BANKS != 1 )
# error "WEP platform has only one flash bank!"
#endif
ulong flash_init (void)
{
int i;
FLASH_BUS address = WEP_FLASH_BASE;
flash_info[0].size = WEP_FLASH_BANK_SIZE;
flash_info[0].sector_count = CFG_MAX_FLASH_SECT;
flash_info[0].flash_id = INTEL_MANUFACT;
memset (flash_info[0].protect, 0, CFG_MAX_FLASH_SECT);
for (i = 0; i < CFG_MAX_FLASH_SECT; i++) {
flash_info[0].start[i] = address;
#ifdef WEP_FLASH_UNLOCK
/* Some devices are hw locked after start. */
*((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_LOCK_SETUP);
*((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_UNLOCK_BLOCK);
flash_ready (0);
*((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY);
#endif
address += WEP_FLASH_SECT_SIZE;
}
flash_protect (FLAG_PROTECT_SET,
CFG_FLASH_BASE,
CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
&flash_info[0]);
flash_protect (FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
return WEP_FLASH_BANK_SIZE;
}
void flash_print_info (flash_info_t * info)
{
int i;
printf (" Intel vendor\n");
printf (" Size: %ld MB in %d Sectors\n",
info->size >> 20, info->sector_count);
printf (" Sector Start Addresses:");
for (i = 0; i < info->sector_count; i++) {
if (!(i % 5)) {
printf ("\n");
}
printf (" %08lX%s", info->start[i],
info->protect[i] ? " (RO)" : " ");
}
printf ("\n");
}
int flash_erase (flash_info_t * info, int s_first, int s_last)
{
int flag, non_protected = 0, sector;
int rc = ERR_OK;
FLASH_BUS *address;
for (sector = s_first; sector <= s_last; sector++) {
if (!info->protect[sector]) {
non_protected++;
}
}
if (!non_protected) {
return ERR_PROTECTED;
}
/*
* Disable interrupts which might cause a timeout
* here. Remember that our exception vectors are
* at address 0 in the flash, and we don't want a
* (ticker) exception to happen while the flash
* chip is in programming mode.
*/
flag = disable_interrupts ();
/* Start erase on unprotected sectors */
for (sector = s_first; sector <= s_last && !ctrlc (); sector++) {
if (info->protect[sector]) {
printf ("Protected sector %2d skipping...\n", sector);
continue;
} else {
printf ("Erasing sector %2d ... ", sector);
}
address = (FLASH_BUS *) (info->start[sector]);
*address = FLASH_CMD (CFI_INTEL_CMD_BLOCK_ERASE);
*address = FLASH_CMD (CFI_INTEL_CMD_CONFIRM);
if (flash_ready (CFG_FLASH_ERASE_TOUT)) {
*address = FLASH_CMD (CFI_INTEL_CMD_CLEAR_STATUS_REGISTER);
printf ("ok.\n");
} else {
*address = FLASH_CMD (CFI_INTEL_CMD_SUSPEND);
rc = ERR_TIMOUT;
printf ("timeout! Aborting...\n");
break;
}
*address = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY);
}
if (ctrlc ())
printf ("User Interrupt!\n");
/* allow flash to settle - wait 10 ms */
udelay_masked (10000);
if (flag) {
enable_interrupts ();
}
return rc;
}
static int write_data (flash_info_t * info, ulong dest, FLASH_BUS data)
{
FLASH_BUS *address = (FLASH_BUS *) dest;
int rc = ERR_OK;
int flag;
/* Check if Flash is (sufficiently) erased */
if ((*address & data) != data) {
return ERR_NOT_ERASED;
}
/*
* Disable interrupts which might cause a timeout
* here. Remember that our exception vectors are
* at address 0 in the flash, and we don't want a
* (ticker) exception to happen while the flash
* chip is in programming mode.
*/
flag = disable_interrupts ();
*address = FLASH_CMD (CFI_INTEL_CMD_CLEAR_STATUS_REGISTER);
*address = FLASH_CMD (CFI_INTEL_CMD_PROGRAM1);
*address = data;
if (!flash_ready (CFG_FLASH_WRITE_TOUT)) {
*address = FLASH_CMD (CFI_INTEL_CMD_SUSPEND);
rc = ERR_TIMOUT;
printf ("timeout! Aborting...\n");
}
*address = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY);
if (flag) {
enable_interrupts ();
}
return rc;
}
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
ulong read_addr, write_addr;
FLASH_BUS data;
int i, result = ERR_OK;
read_addr = addr & ~(sizeof (FLASH_BUS) - 1);
write_addr = read_addr;
if (read_addr != addr) {
data = 0;
for (i = 0; i < sizeof (FLASH_BUS); i++) {
if (read_addr < addr || cnt == 0) {
data |= *((uchar *) read_addr) << i * 8;
} else {
data |= (*src++) << i * 8;
cnt--;
}
read_addr++;
}
if ((result = write_data (info, write_addr, data)) != ERR_OK) {
return result;
}
write_addr += sizeof (FLASH_BUS);
}
for (; cnt >= sizeof (FLASH_BUS); cnt -= sizeof (FLASH_BUS)) {
if ((result = write_data (info, write_addr,
*((FLASH_BUS *) src))) != ERR_OK) {
return result;
}
write_addr += sizeof (FLASH_BUS);
src += sizeof (FLASH_BUS);
}
if (cnt > 0) {
read_addr = write_addr;
data = 0;
for (i = 0; i < sizeof (FLASH_BUS); i++) {
if (cnt > 0) {
data |= (*src++) << i * 8;
cnt--;
} else {
data |= *((uchar *) read_addr) << i * 8;
}
read_addr++;
}
if ((result = write_data (info, write_addr, data)) != 0) {
return result;
}
}
return ERR_OK;
}

100
board/wepep250/intel.h Normal file
View File

@@ -0,0 +1,100 @@
/*
* Copyright (C) 2002 ETC s.r.o.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the ETC s.r.o. nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Written by Marcel Telka <marcel@telka.sk>, 2002.
*
* Documentation:
* [1] Intel Corporation, "3 Volt Intel Strata Flash Memory 28F128J3A, 28F640J3A,
* 28F320J3A (x8/x16)", April 2002, Order Number: 290667-011
* [2] Intel Corporation, "3 Volt Synchronous Intel Strata Flash Memory 28F640K3, 28F640K18,
* 28F128K3, 28F128K18, 28F256K3, 28F256K18 (x16)", June 2002, Order Number: 290737-005
*
* This file is taken from OpenWinCE project hosted by SourceForge.net
*
*/
#ifndef FLASH_INTEL_H
#define FLASH_INTEL_H
#include <common.h>
/* Intel CFI commands - see Table 4. in [1] and Table 3. in [2] */
#define CFI_INTEL_CMD_READ_ARRAY 0xFF /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_READ_IDENTIFIER 0x90 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_READ_QUERY 0x98 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_READ_STATUS_REGISTER 0x70 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_CLEAR_STATUS_REGISTER 0x50 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_PROGRAM1 0x40 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_PROGRAM2 0x10 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_WRITE_TO_BUFFER 0xE8 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_CONFIRM 0xD0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_BLOCK_ERASE 0x20 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_SUSPEND 0xB0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_RESUME 0xD0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_LOCK_SETUP 0x60 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_LOCK_BLOCK 0x01 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_UNLOCK_BLOCK 0xD0 /* 28FxxxJ3A - unlocks all blocks, 28FFxxxK3, 28FxxxK18 */
#define CFI_INTEL_CMD_LOCK_DOWN_BLOCK 0x2F /* 28FxxxK3, 28FxxxK18 */
/* Intel CFI Status Register bits - see Table 6. in [1] and Table 7. in [2] */
#define CFI_INTEL_SR_READY 1 << 7 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_SR_ERASE_SUSPEND 1 << 6 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_SR_ERASE_ERROR 1 << 5 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_SR_PROGRAM_ERROR 1 << 4 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_SR_VPEN_ERROR 1 << 3 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_SR_PROGRAM_SUSPEND 1 << 2 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_SR_BLOCK_LOCKED 1 << 1 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
#define CFI_INTEL_SR_BEFP 1 << 0 /* 28FxxxK3, 28FxxxK18 */
/* Intel flash device ID codes for 28FxxxJ3A - see Table 5. in [1] */
#define CFI_CHIP_INTEL_28F320J3A 0x0016
#define CFI_CHIPN_INTEL_28F320J3A "28F320J3A"
#define CFI_CHIP_INTEL_28F640J3A 0x0017
#define CFI_CHIPN_INTEL_28F640J3A "28F640J3A"
#define CFI_CHIP_INTEL_28F128J3A 0x0018
#define CFI_CHIPN_INTEL_28F128J3A "28F128J3A"
/* Intel flash device ID codes for 28FxxxK3 and 28FxxxK18 - see Table 8. in [2] */
#define CFI_CHIP_INTEL_28F640K3 0x8801
#define CFI_CHIPN_INTEL_28F640K3 "28F640K3"
#define CFI_CHIP_INTEL_28F128K3 0x8802
#define CFI_CHIPN_INTEL_28F128K3 "28F128K3"
#define CFI_CHIP_INTEL_28F256K3 0x8803
#define CFI_CHIPN_INTEL_28F256K3 "28F256K3"
#define CFI_CHIP_INTEL_28F640K18 0x8805
#define CFI_CHIPN_INTEL_28F640K18 "28F640K18"
#define CFI_CHIP_INTEL_28F128K18 0x8806
#define CFI_CHIPN_INTEL_28F128K18 "28F128K18"
#define CFI_CHIP_INTEL_28F256K18 0x8807
#define CFI_CHIPN_INTEL_28F256K18 "28F256K18"
#endif /* FLASH_INTEL_H */

147
board/wepep250/memsetup.S Normal file
View File

@@ -0,0 +1,147 @@
/*
* Copyright (C) 2001, 2002 ETC s.r.o.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Written by Marcel Telka <marcel@telka.sk>, 2001, 2002.
* Changes for U-Boot Peter Figuli <peposh@etc.sk>, 2003.
*
* This file is taken from OpenWinCE project hosted by SourceForge.net
*
* Documentation:
* [1] Intel Corporation, "Intel PXA250 and PXA210 Application Processors
* Developer's Manual", February 2002, Order Number: 278522-001
* [2] Samsung Electronics, "8Mx16 SDRAM 54CSP K4S281633D-RL/N/P",
* Revision 1.0, February 2002
* [3] Samsung Electronics, "16Mx16 SDRAM 54CSP K4S561633C-RL(N)",
* Revision 1.0, February 2002
*
*/
#include <config.h>
#include <version.h>
#include <asm/arch/pxa-regs.h>
.globl memsetup
memsetup:
mov r10, lr
/* setup memory - see 6.12 in [1]
* Step 1 - wait 200 us
*/
mov r0,#0x2700 /* wait 200 us @ 99.5 MHz */
1: subs r0, r0, #1
bne 1b
/* TODO: complete step 1 for Synchronous Static memory*/
ldr r0, =0x48000000 /* MC_BASE */
/* step 1.a - setup MSCx
*/
ldr r1, =0x000012B3 /* MSC0_RRR0(1) | MSC0_RDN0(2) | MSC0_RDF0(11) | MSC0_RT0(3) */
str r1, [r0, #0x8] /* MSC0_OFFSET */
/* step 1.c - clear MDREFR:K1FREE, set MDREFR:DRI
* see AUTO REFRESH chapter in section D. in [2] and in [3]
* DRI = (64ms / 4096) * 99.53MHz / 32 = 48 for K4S281633
* DRI = (64ms / 8192) * 99.52MHz / 32 = 24 for K4S561633
* TODO: complete for Synchronous Static memory
*/
ldr r1, [r0, #4] /* MDREFR_OFFSET */
ldr r2, =0x01000FFF /* MDREFR_K1FREE | MDREFR_DRI_MASK */
bic r1, r1, r2
#if defined( WEP_SDRAM_K4S281633 )
orr r1, r1, #48 /* MDREFR_DRI(48) */
#elif defined( WEP_SDRAM_K4S561633 )
orr r1, r1, #24 /* MDREFR_DRI(24) */
#else
#error SDRAM chip is not defined
#endif
str r1, [r0, #4] /* MDREFR_OFFSET */
/* Step 2 - only for Synchronous Static memory (TODO)
*
* Step 3 - same as step 4
*
* Step 4
*
* Step 4.a - set MDREFR:K1RUN, clear MDREFR:K1DB2
*/
orr r1, r1, #0x00010000 /* MDREFR_K1RUN */
bic r1, r1, #0x00020000 /* MDREFR_K1DB2 */
str r1, [r0, #4] /* MDREFR_OFFSET */
/* Step 4.b - clear MDREFR:SLFRSH */
bic r1, r1, #0x00400000 /* MDREFR_SLFRSH */
str r1, [r0, #4] /* MDREFR_OFFSET */
/* Step 4.c - set MDREFR:E1PIN */
orr r1, r1, #0x00008000 /* MDREFR_E1PIN */
str r1, [r0, #4] /* MDREFR_OFFSET */
/* Step 4.d - automatically done
*
* Steps 4.e and 4.f - configure SDRAM
*/
#if defined( WEP_SDRAM_K4S281633 )
ldr r1, =0x00000AA8 /* MDCNFG_DTC0(2) | MDCNFG_DLATCH0 | MDCNFG_DCAC0(1) | MDCNFG_DRAC0(1) | MDCNFG_DNB0 */
#elif defined( WEP_SDRAM_K4S561633 )
ldr r1, =0x00000AC8 /* MDCNFG_DTC0(2) | MDCNFG_DLATCH0 | MDCNFG_DCAC0(1) | MDCNFG_DRAC0(2) | MDCNFG_DNB0 */
#else
#error SDRAM chip is not defined
#endif
str r1, [r0, #0] /* MDCNFG_OFFSET */
/* Step 5 - wait at least 200 us for SDRAM
* see section B. in [2]
*/
mov r2,#0x2700 /* wait 200 us @ 99.5 MHz */
1: subs r2, r2, #1
bne 1b
/* Step 6 - after reset dcache is disabled, so automatically done
*
* Step 7 - eight refresh cycles
*/
mov r2, #0xA0000000
ldr r3, [r2]
ldr r3, [r2]
ldr r3, [r2]
ldr r3, [r2]
ldr r3, [r2]
ldr r3, [r2]
ldr r3, [r2]
ldr r3, [r2]
/* Step 8 - we don't need dcache now
*
* Step 9 - enable SDRAM partition 0
*/
orr r1, r1, #1 /* MDCNFG_DE0 */
str r1, [r0, #0] /* MDCNFG_OFFSET */
/* Step 10 - write MDMRS */
mov r1, #0
str r1, [r0, #0x40] /* MDMRS_OFFSET */
/* Step 11 - optional (TODO) */
mov pc,r10

55
board/wepep250/u-boot.lds Normal file
View File

@@ -0,0 +1,55 @@
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
. = 0x00000000;
. = ALIGN(4);
.text :
{
cpu/xscale/start.o (.text)
*(.text)
}
. = ALIGN(4);
.rodata : { *(.rodata) }
. = ALIGN(4);
.data : { *(.data) }
. = ALIGN(4);
.got : { *(.got) }
armboot_end_data = .;
. = ALIGN(4);
bss_start = .;
.bss : { *(.bss) }
bss_end = .;
armboot_end = .;
}

77
board/wepep250/wepep250.c Normal file
View File

@@ -0,0 +1,77 @@
/*
* Copyright (C) 2003 ETC s.r.o.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Written by Peter Figuli <peposh@etc.sk>, 2003.
*
*/
#include <common.h>
#include <asm/arch/pxa-regs.h>
int board_init( void ){
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_arch_number = 288;
gd->bd->bi_boot_params = 0xa0000000;
/*
* Setup GPIO stuff to get serial working
*/
#if defined( CONFIG_FFUART )
GPDR1 = 0x80;
GAFR1_L = 0x8010;
#elif defined( CONFIG_BTUART )
GPDR1 = 0x800;
GAFR1_L = 0x900000;
#endif
PSSR = 0x20;
/*
* Following code is just bug workaround, remove it if not neccessary
*/
/* cpu/xscale/cpu.c do not set armboot_real_end that is used for
malloc pool.*/
if( _armboot_real_end == 0xbadc0de ){
_armboot_real_end = _armboot_end;
}
return 0;
}
int dram_init( void ){
DECLARE_GLOBAL_DATA_PTR;
#if ( CONFIG_NR_DRAM_BANKS > 0 )
gd->bd->bi_dram[0].start = WEP_SDRAM_1;
gd->bd->bi_dram[0].size = WEP_SDRAM_1_SIZE;
#endif
#if ( CONFIG_NR_DRAM_BANKS > 1 )
gd->bd->bi_dram[1].start = WEP_SDRAM_2;
gd->bd->bi_dram[1].size = WEP_SDRAM_2_SIZE;
#endif
#if ( CONFIG_NR_DRAM_BANKS > 2 )
gd->bd->bi_dram[2].start = WEP_SDRAM_3;
gd->bd->bi_dram[2].size = WEP_SDRAM_3_SIZE;
#endif
#if ( CONFIG_NR_DRAM_BANKS > 3 )
gd->bd->bi_dram[3].start = WEP_SDRAM_4;
gd->bd->bi_dram[3].size = WEP_SDRAM_4_SIZE;
#endif
return 0;
}

View File

@@ -30,7 +30,7 @@ AOBJS =
COBJS = main.o altera.o bedbug.o \
cmd_autoscript.o cmd_bedbug.o cmd_boot.o \
cmd_bootm.o cmd_cache.o cmd_console.o cmd_date.o \
cmd_dcr.o cmd_diag.o cmd_doc.o cmd_dtt.o \
cmd_dcr.o cmd_diag.o cmd_doc.o cmd_nand.o cmd_dtt.o \
cmd_eeprom.o cmd_elf.o cmd_fdc.o cmd_fdos.o cmd_flash.o \
cmd_fpga.o cmd_i2c.o cmd_ide.o cmd_immap.o \
cmd_jffs2.o cmd_log.o cmd_mem.o cmd_mii.o cmd_misc.o \

View File

@@ -56,7 +56,7 @@ void bedbug_init( void )
#if defined(CONFIG_4xx)
void bedbug405_init( void );
bedbug405_init();
#elif defined(CONFIG_MPC860)
#elif defined(CONFIG_8xx)
void bedbug860_init( void );
bedbug860_init();
#endif

View File

@@ -71,7 +71,7 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
print_num ("flashoffset", bd->bi_flashoffset );
print_num ("sramstart", bd->bi_sramstart );
print_num ("sramsize", bd->bi_sramsize );
#if defined(CONFIG_8xx) || defined(CONFIG_8260)
#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260)
print_num ("immr_base", bd->bi_immr_base );
#endif
print_num ("bootflags", bd->bi_bootflags );
@@ -153,10 +153,9 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
print_num ("boot_params", (ulong)bd->bi_boot_params);
for (i=0; i<CONFIG_NR_DRAM_BANKS; ++i) {
printf ("DRAM:%02d.start = %08lX\n",
i, bd->bi_dram[i].start);
printf ("DRAM:%02d.size = %08lX\n",
i, bd->bi_dram[i].size);
print_num("DRAM bank", i);
print_num("-> start", bd->bi_dram[i].start);
print_num("-> size", bd->bi_dram[i].size);
}
printf ("ethaddr =");
@@ -164,10 +163,10 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
printf ("%c%02X", i ? ':' : ' ', bd->bi_enetaddr[i]);
}
printf ("\n"
"ip_addr = ");
"ip_addr = ");
print_IPaddr (bd->bi_ip_addr);
printf ("\n"
"baudrate = %d bps\n", bd->bi_baudrate);
"baudrate = %d bps\n", bd->bi_baudrate);
return 0;
}
@@ -200,7 +199,7 @@ int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
addr = simple_strtoul(argv[1], NULL, 16);
printf ("## Starting application at 0x%08lx ...\n", addr);
printf ("## Starting application at 0x%08lX ...\n", addr);
/*
* pass address parameter as argv[0] (aka command name),
@@ -209,7 +208,7 @@ int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
rc = ((ulong (*)(int, char *[]))addr) (--argc, &argv[1]);
if (rc != 0) rcode = 1;
printf ("## Application terminated, rc = 0x%lx\n", rc);
printf ("## Application terminated, rc = 0x%lX\n", rc);
return rcode;
}
@@ -285,7 +284,7 @@ int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
printf ("## S-Record download aborted\n");
rcode = 1;
} else {
printf ("## Start Addr = 0x%08lx\n", addr);
printf ("## Start Addr = 0x%08lX\n", addr);
load_addr = addr;
}
@@ -345,9 +344,9 @@ load_serial (ulong offset)
memcpy ((char *)(store_addr), binbuf, binlen);
}
if ((store_addr) < start_addr)
start_addr = store_addr;
start_addr = store_addr;
if ((store_addr + binlen - 1) > end_addr)
end_addr = store_addr + binlen - 1;
end_addr = store_addr + binlen - 1;
break;
case SREC_END2:
case SREC_END3:
@@ -576,6 +575,7 @@ write_record (char *buf)
#define XON_CHAR 17
#define XOFF_CHAR 19
#define START_CHAR 0x01
#define ETX_CHAR 0x03
#define END_CHAR 0x0D
#define SPACE 0x20
#define K_ESCAPE 0x23
@@ -606,9 +606,17 @@ int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
ulong offset = 0;
ulong addr;
int i;
int load_baudrate, current_baudrate;
int rcode = 0;
char *s;
/* pre-set offset from CFG_LOAD_ADDR */
offset = CFG_LOAD_ADDR;
/* pre-set offset from $loadaddr */
if ((s = getenv("loadaddr")) != NULL) {
offset = simple_strtoul(s, NULL, 16);
}
load_baudrate = current_baudrate = gd->baudrate;
@@ -635,28 +643,19 @@ int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
break;
}
}
printf ("## Ready for binary (kermit) download ...\n");
printf ("## Ready for binary (kermit) download "
"to 0x%08lX at %d bps...\n",
offset,
current_baudrate);
addr = load_serial_bin (offset);
/*
* Gather any trailing characters (for instance, the ^D which
* is sent by 'cu' after sending a file), and give the
* box some time (100 * 1 ms)
*/
for (i=0; i<100; ++i) {
if (serial_tstc()) {
(void) serial_getc();
}
udelay(1000);
}
if (addr == ~0) {
load_addr = 0;
printf ("## Binary (kermit) download aborted\n");
rcode = 1;
} else {
printf ("## Start Addr = 0x%08lx\n", addr);
printf ("## Start Addr = 0x%08lX\n", addr);
load_addr = addr;
}
@@ -997,8 +996,18 @@ static int k_recv (void)
#endif
/* get a packet */
/* wait for the starting character */
while (serial_getc () != START_CHAR);
/* wait for the starting character or ^C */
for (;;) {
switch (serial_getc ()) {
case START_CHAR: /* start packet */
goto START;
case ETX_CHAR: /* ^C waiting for packet */
return (0);
default:
;
}
}
START:
/* get length of packet */
sum = 0;
new_char = serial_getc ();

View File

@@ -287,12 +287,17 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
switch (hdr->ih_type) {
case IH_TYPE_STANDALONE:
appl = (int (*)(cmd_tbl_t *, int, int, char *[]))ntohl(hdr->ih_ep);
if (iflag)
enable_interrupts();
/* load (and uncompress), but don't start if "autostart"
* is set to "no"
*/
if (((s = getenv("autostart")) != NULL) && (strcmp(s,"no") == 0))
return 0;
appl = (int (*)(cmd_tbl_t *, int, int, char *[]))ntohl(hdr->ih_ep);
(*appl)(cmdtp, flag, argc-1, &argv[1]);
break;
return 0;
case IH_TYPE_KERNEL:
case IH_TYPE_MULTI:
/* handled below */

View File

@@ -34,10 +34,13 @@ const char *weekdays[] = {
"Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur",
};
#define RELOC(a) ((typeof(a))((unsigned long)(a) + gd->reloc_off))
int mk_date (char *, struct rtc_time *);
int do_date (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
DECLARE_GLOBAL_DATA_PTR;
struct rtc_time tm;
int rcode = 0;
@@ -64,7 +67,7 @@ int do_date (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
printf ("Date: %4d-%02d-%02d (%sday) Time: %2d:%02d:%02d\n",
tm.tm_year, tm.tm_mon, tm.tm_mday,
(tm.tm_wday<0 || tm.tm_wday>6) ?
"unknown " : weekdays[tm.tm_wday],
"unknown " : RELOC(weekdays[tm.tm_wday]),
tm.tm_hour, tm.tm_min, tm.tm_sec);
return 0;

View File

@@ -21,6 +21,7 @@
#if (CONFIG_COMMANDS & CFG_CMD_DOC)
#include <linux/mtd/nftl.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ids.h>
#include <linux/mtd/doc2000.h>

View File

@@ -55,7 +55,7 @@ int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
unsigned short data;
int rcode = 0;
#ifdef CONFIG_MPC860
#ifdef CONFIG_8xx
mii_init ();
#endif

1573
common/cmd_nand.c Normal file

File diff suppressed because it is too large Load Diff

View File

@@ -180,9 +180,13 @@ int _do_setenv (int flag, int argc, char *argv[])
#ifndef CONFIG_ENV_OVERWRITE
/*
* Ethernet Address and serial# can be set only once
* Ethernet Address and serial# can be set only once,
* ver is readonly.
*/
if ( (strcmp (name, "serial#") == 0) ||
#if defined(CONFIG_VERSION_VARIABLE)
(strcmp (name, "ver") == 0) ||
#endif /* CONFIG_VERSION_VARIABLE */
((strcmp (name, "ethaddr") == 0)
#if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR)
&& (strcmp (env_get_addr(oldval),MK_STR(CONFIG_ETHADDR)) != 0)
@@ -358,7 +362,7 @@ int _do_setenv (int flag, int argc, char *argv[])
}
#endif /* CFG_CMD_NET */
#ifdef CONFIG_AMIGAONEG3SE
#ifdef CONFIG_AMIGAONEG3SE
if (strcmp(argv[1], "vga_fg_color") == 0 ||
strcmp(argv[1], "vga_bg_color") == 0 ) {
extern void video_set_color(unsigned char attr);

View File

@@ -514,12 +514,17 @@ static int hardware_disable(int slot)
/* -------------------------------------------------------------------- */
/* TQM8xxL Boards by TQ Components */
/* SC8xx Boards by SinoVee Microsystems */
/* -------------------------------------------------------------------- */
#if defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx)
#if defined(CONFIG_TQM8xxL)
#define PCMCIA_BOARD_MSG "TQM8xxL"
#endif
#if defined(CONFIG_SVM_SC8xx)
#define PCMCIA_BOARD_MSG "SC8xx"
#endif
static int hardware_enable(int slot)
{

View File

@@ -28,6 +28,8 @@
#include <mpc8xx.h>
#elif defined (CONFIG_405GP)
#include <asm/processor.h>
#elif defined (CONFIG_5xx)
#include <mpc5xx.h>
#endif
#if (CONFIG_COMMANDS & CFG_CMD_REGINFO)
@@ -172,9 +174,42 @@ mfdcr(dmacr3), mfdcr(dmact3),mfdcr(dmada3), mfdcr(dmasa3), mfdcr(dmasb3) );
mtdcr(ebccfga,pb7ap); printf ("%08x ", mfdcr(ebccfgd));
printf ("\n\n");
#endif /*(CONFIG_405GP)*/
#elif defined(CONFIG_5xx)
volatile immap_t *immap = (immap_t *)CFG_IMMR;
volatile memctl5xx_t *memctl = &immap->im_memctl;
volatile sysconf5xx_t *sysconf = &immap->im_siu_conf;
volatile sit5xx_t *timers = &immap->im_sit;
volatile car5xx_t *car = &immap->im_clkrst;
volatile uimb5xx_t *uimb = &immap->im_uimb;
printf("\nSystem Configuration registers\n");
printf("\tIMMR\t0x%08X\tSIUMCR\t0x%08X \n", get_immr(0), sysconf->sc_siumcr);
printf("\tSYPCR\t0x%08X\tSWSR\t0x%04X \n" ,sysconf->sc_sypcr, sysconf->sc_swsr);
printf("\tSIPEND\t0x%08X\tSIMASK\t0x%08X \n", sysconf->sc_sipend, sysconf->sc_simask);
printf("\tSIEL\t0x%08X\tSIVEC\t0x%08X \n", sysconf->sc_siel, sysconf->sc_sivec);
printf("\tTESR\t0x%08X\n", sysconf->sc_tesr);
printf("\nMemory Controller Registers\n");
printf("\tBR0\t0x%08X\tOR0\t0x%08X \n", memctl->memc_br0, memctl->memc_or0);
printf("\tBR1\t0x%08X\tOR1\t0x%08X \n", memctl->memc_br1, memctl->memc_or1);
printf("\tBR2\t0x%08X\tOR2\t0x%08X \n", memctl->memc_br2, memctl->memc_or2);
printf("\tBR3\t0x%08X\tOR3\t0x%08X \n", memctl->memc_br3, memctl->memc_or3);
printf("\tDMBR\t0x%08X\tDMOR\t0x%08X \n", memctl->memc_dmbr, memctl->memc_dmor );
printf("\tMSTAT\t0x%08X\n", memctl->memc_mstat);
printf("\nSystem Integration Timers\n");
printf("\tTBSCR\t0x%08X\tRTCSC\t0x%08X \n", timers->sit_tbscr, timers->sit_rtcsc);
printf("\tPISCR\t0x%08X \n", timers->sit_piscr);
printf("\nClocks and Reset\n");
printf("\tSCCR\t0x%08X\tPLPRCR\t0x%08X \n", car->car_sccr, car->car_plprcr);
printf("\nU-Bus to IMB3 Bus Interface\n");
printf("\tUMCR\t0x%08X\tUIPEND\t0x%08X \n", uimb->uimb_umcr, uimb->uimb_uipend);
printf ("\n\n");
#endif /* CONFIG_5xx */
return 0;
}
#endif /* CONFIG_8xx && CFG_CMD_REGINFO */
#endif /* CONFIG_COMMANDS & CFG_CMD_REGINFO */

View File

@@ -58,6 +58,7 @@
#include <cmd_mii.h>
#include <cmd_dcr.h> /* 4xx DCR register access */
#include <cmd_doc.h>
#include <cmd_nand.h>
#include <cmd_jffs2.h>
#include <cmd_fpga.h>
@@ -307,6 +308,8 @@ cmd_tbl_t cmd_tbl[] = {
CMD_TBL_MTEST
CMD_TBL_MUXINFO
CMD_TBL_MW
CMD_TBL_NAND
CMD_TBL_NANDBOOT
CMD_TBL_NEXT
CMD_TBL_NM
CMD_TBL_PCI

View File

@@ -46,7 +46,8 @@
* a seperate section. Note that ENV_CRC is only defined when building
* U-Boot itself.
*/
#if (defined(CONFIG_FADS) || \
#if (defined(CONFIG_CMI) || \
defined(CONFIG_FADS) || \
defined(CONFIG_HYMOD) || \
defined(CONFIG_ICU862) || \
defined(CONFIG_R360MPI) || \

View File

@@ -2357,34 +2357,35 @@ static void initialize_context(struct p_context *ctx)
* should handle if, then, elif, else, fi, for, while, until, do, done.
* case, function, and select are obnoxious, save those for later.
*/
struct reserved_combo {
char *literal;
int code;
long flag;
};
/* Mostly a list of accepted follow-up reserved words.
* FLAG_END means we are done with the sequence, and are ready
* to turn the compound list into a command.
* FLAG_START means the word must start a new compound list.
*/
static struct reserved_combo reserved_list[] = {
{ "if", RES_IF, FLAG_THEN | FLAG_START },
{ "then", RES_THEN, FLAG_ELIF | FLAG_ELSE | FLAG_FI },
{ "elif", RES_ELIF, FLAG_THEN },
{ "else", RES_ELSE, FLAG_FI },
{ "fi", RES_FI, FLAG_END },
{ "for", RES_FOR, FLAG_IN | FLAG_START },
{ "while", RES_WHILE, FLAG_DO | FLAG_START },
{ "until", RES_UNTIL, FLAG_DO | FLAG_START },
{ "in", RES_IN, FLAG_DO },
{ "do", RES_DO, FLAG_DONE },
{ "done", RES_DONE, FLAG_END }
};
#define NRES (sizeof(reserved_list)/sizeof(struct reserved_combo))
int reserved_word(o_string *dest, struct p_context *ctx)
{
struct reserved_combo {
char *literal;
int code;
long flag;
};
/* Mostly a list of accepted follow-up reserved words.
* FLAG_END means we are done with the sequence, and are ready
* to turn the compound list into a command.
* FLAG_START means the word must start a new compound list.
*/
static struct reserved_combo reserved_list[] = {
{ "if", RES_IF, FLAG_THEN | FLAG_START },
{ "then", RES_THEN, FLAG_ELIF | FLAG_ELSE | FLAG_FI },
{ "elif", RES_ELIF, FLAG_THEN },
{ "else", RES_ELSE, FLAG_FI },
{ "fi", RES_FI, FLAG_END },
{ "for", RES_FOR, FLAG_IN | FLAG_START },
{ "while", RES_WHILE, FLAG_DO | FLAG_START },
{ "until", RES_UNTIL, FLAG_DO | FLAG_START },
{ "in", RES_IN, FLAG_DO },
{ "do", RES_DO, FLAG_DONE },
{ "done", RES_DONE, FLAG_END }
};
struct reserved_combo *r;
for (r=reserved_list;
#define NRES sizeof(reserved_list)/sizeof(struct reserved_combo)
r<reserved_list+NRES; r++) {
if (strcmp(dest->data, r->literal) == 0) {
debug_printf("found reserved word %s, code %d\n",r->literal,r->code);
@@ -3169,6 +3170,18 @@ int parse_file_outer(void)
}
#ifdef __U_BOOT__
static void u_boot_hush_reloc(void)
{
DECLARE_GLOBAL_DATA_PTR;
unsigned long addr;
struct reserved_combo *r;
for (r=reserved_list; r<reserved_list+NRES; r++) {
addr = (ulong) (r->literal) + gd->reloc_off;
r->literal = (char *)addr;
}
}
int u_boot_hush_start(void)
{
top_vars = malloc(sizeof(struct variables));
@@ -3177,6 +3190,7 @@ int u_boot_hush_start(void)
top_vars->next = 0;
top_vars->flg_export = 0;
top_vars->flg_read_only = 1;
u_boot_hush_reloc();
return 0;
}

View File

@@ -279,6 +279,16 @@ void main_loop (void)
}
#endif /* CONFIG_MODEM_SUPPORT */
#ifdef CONFIG_VERSION_VARIABLE
{
extern char version_string[];
char *str = getenv("ver");
if (!str)
setenv ("ver", version_string); /* set version variable */
}
#endif /* CONFIG_VERSION_VARIABLE */
#ifdef CFG_HUSH_PARSER
u_boot_hush_start ();
#endif
@@ -852,7 +862,6 @@ int run_command (const char *cmd, int flag)
int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int i;
int rcode = 1;
if (argc < 2) {
printf ("Usage:\n%s\n", cmdtp->usage);
@@ -860,13 +869,21 @@ int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
for (i=1; i<argc; ++i) {
char *arg;
if ((arg = getenv (argv[i])) == NULL) {
printf ("## Error: \"%s\" not defined\n", argv[i]);
return 1;
}
#ifndef CFG_HUSH_PARSER
if (run_command (getenv (argv[i]), flag) != -1) ++rcode;
if (run_command (arg, flag) == -1)
return 1;
#else
if (parse_string_outer(getenv (argv[i]),
FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) == 0) ++rcode;
if (parse_string_outer(arg,
FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) == 0)
return 1;
#endif
}
return ((rcode == i) ? 0 : 1);
return 0;
}
#endif
#endif /* CFG_CMD_RUN */

View File

@@ -83,8 +83,12 @@ static void send_reset(void)
#endif
int j;
I2C_ACTIVE;
I2C_SCL(1);
I2C_SDA(1);
#ifdef I2C_INIT
I2C_INIT;
#endif
I2C_TRISTATE;
for(j = 0; j < 9; j++) {
I2C_SCL(0);
I2C_DELAY;
@@ -262,13 +266,6 @@ static uchar read_byte(int ack)
*/
void i2c_init (int speed, int slaveaddr)
{
#ifdef CONFIG_8xx
volatile immap_t *immr = (immap_t *)CFG_IMMR;
#endif
#ifdef I2C_INIT
I2C_INIT;
#endif
/*
* WARNING: Do NOT save speed in a static variable: if the
* I2C routines are called before RAM is initialized (to read

43
cpu/at91rm9200/Makefile Normal file
View File

@@ -0,0 +1,43 @@
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(CPU).a
START = start.o
OBJS = serial.o interrupts.o cpu.o
all: .depend $(START) $(LIB)
$(LIB): $(OBJS)
$(AR) crv $@ $(OBJS)
#########################################################################
.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@
sinclude .depend
#########################################################################

27
cpu/at91rm9200/config.mk Normal file
View File

@@ -0,0 +1,27 @@
#
# (C) Copyright 2002
# Sysgo Real-Time Solutions, GmbH <www.elinos.com>
# Marius Groeger <mgroeger@sysgo.de>
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
-mshort-load-bytes -msoft-float
PLATFORM_CPPFLAGS += -mapcs-32 -march=armv4 -mtune=arm7tdmi

177
cpu/at91rm9200/cpu.c Normal file
View File

@@ -0,0 +1,177 @@
/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* CPU specific code
*/
#include <common.h>
#include <command.h>
#include <asm/io.h>
/* read co-processor 15, register #1 (control register) */
static unsigned long read_p15_c1(void)
{
unsigned long value;
__asm__ __volatile__(
"mrc p15, 0, %0, c1, c0, 0 @ read control reg\n"
: "=r" (value)
:
: "memory");
/*printf("p15/c1 is = %08lx\n", value); */
return value;
}
/* write to co-processor 15, register #1 (control register) */
static void write_p15_c1(unsigned long value)
{
/*printf("write %08lx to p15/c1\n", value); */
__asm__ __volatile__(
"mcr p15, 0, %0, c1, c0, 0 @ write it back\n"
: "=r" (value)
:
: "memory");
read_p15_c1();
}
static void cp_delay(void)
{
volatile int i;
/* copro seems to need some delay between reading and writing */
for (i=0; i<100; i++);
}
/* See also ARM Ref. Man. */
#define C1_MMU (1<<0) /* mmu off/on */
#define C1_ALIGN (1<<1) /* alignment faults off/on */
#define C1_IDC (1<<2) /* icache and/or dcache off/on */
#define C1_WRITE_BUFFER (1<<3) /* write buffer off/on */
#define C1_BIG_ENDIAN (1<<7) /* big endian off/on */
#define C1_SYS_PROT (1<<8) /* system protection */
#define C1_ROM_PROT (1<<9) /* ROM protection */
#define C1_HIGH_VECTORS (1<<13) /* location of vectors: low/high addresses */
int cpu_init(void)
{
/*
* setup up stack if necessary
*/
#ifdef CONFIG_USE_IRQ
IRQ_STACK_START = _armboot_end +
CONFIG_STACKSIZE + CONFIG_STACKSIZE_IRQ - 4;
FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
_armboot_real_end = FIQ_STACK_START + 4;
#else
_armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
#endif
return 0;
}
int cleanup_before_linux(void)
{
/*
* this function is called just before we call linux
* it prepares the processor for linux
*
* we turn off caches etc ...
* and we set the CPU-speed to 73 MHz - see start.S for details
*/
disable_interrupts();
return 0;
}
int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
#ifdef CFG_SOFT_RESET
extern void reset_cpu(ulong addr);
disable_interrupts();
reset_cpu(0);
#else
AT91PS_USART us = AT91C_BASE_US1;
AT91PS_PIO pio = AT91C_BASE_PIOA;
/*shutdown the console to avoid strange chars during reset */
us->US_CR = (AT91C_US_RSTRX | AT91C_US_RSTTX);
/* Clear PA19 to trigger the hard reset */
pio->PIO_CODR = 0x00080000;
pio->PIO_OER = 0x00080000;
pio->PIO_PER = 0x00080000;
/* Never reached */
#endif
return 0;
}
void icache_enable(void)
{
ulong reg;
reg = read_p15_c1();
cp_delay();
write_p15_c1(reg | C1_IDC);
}
void icache_disable(void)
{
ulong reg;
reg = read_p15_c1();
cp_delay();
write_p15_c1(reg & ~C1_IDC);
}
int icache_status(void)
{
return (read_p15_c1() & C1_IDC) != 0;
return 0;
}
void dcache_enable(void)
{
ulong reg;
reg = read_p15_c1();
cp_delay();
write_p15_c1(reg | C1_IDC);
}
void dcache_disable(void)
{
ulong reg;
reg = read_p15_c1();
cp_delay();
write_p15_c1(reg & ~C1_IDC);
}
int dcache_status(void)
{
return (read_p15_c1() & C1_IDC) != 0;
return 0;
}

236
cpu/at91rm9200/interrupts.c Normal file
View File

@@ -0,0 +1,236 @@
/*
* (C) Copyright 2002
* Lineo, Inc. <www.lineo.com>
* Bernhard Kuhn <bkuhn@lineo.com>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/io.h>
#include <asm/proc-armv/ptrace.h>
extern void reset_cpu(ulong addr);
/* we always count down the max. */
#define TIMER_LOAD_VAL 0xffff
/* macro to read the 16 bit timer */
#define READ_TIMER (tmr->TC_CV)
AT91PS_TC tmr;
void enable_interrupts (void)
{
return;
}
int disable_interrupts (void)
{
return 0;
}
void bad_mode(void)
{
panic("Resetting CPU ...\n");
reset_cpu(0);
}
void show_regs(struct pt_regs * regs)
{
unsigned long flags;
const char *processor_modes[]=
{ "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" ,
"UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26",
"USER_32", "FIQ_32" , "IRQ_32" , "SVC_32" , "UK4_32" , "UK5_32" , "UK6_32" , "ABT_32" ,
"UK8_32" , "UK9_32" , "UK10_32", "UND_32" , "UK12_32", "UK13_32", "UK14_32", "SYS_32"
};
flags = condition_codes(regs);
printf("pc : [<%08lx>] lr : [<%08lx>]\n"
"sp : %08lx ip : %08lx fp : %08lx\n",
instruction_pointer(regs),
regs->ARM_lr, regs->ARM_sp,
regs->ARM_ip, regs->ARM_fp);
printf("r10: %08lx r9 : %08lx r8 : %08lx\n",
regs->ARM_r10, regs->ARM_r9,
regs->ARM_r8);
printf("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
regs->ARM_r7, regs->ARM_r6,
regs->ARM_r5, regs->ARM_r4);
printf("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
regs->ARM_r3, regs->ARM_r2,
regs->ARM_r1, regs->ARM_r0);
printf("Flags: %c%c%c%c",
flags & CC_N_BIT ? 'N' : 'n',
flags & CC_Z_BIT ? 'Z' : 'z',
flags & CC_C_BIT ? 'C' : 'c',
flags & CC_V_BIT ? 'V' : 'v');
printf(" IRQs %s FIQs %s Mode %s%s\n",
interrupts_enabled(regs) ? "on" : "off",
fast_interrupts_enabled(regs) ? "on" : "off",
processor_modes[processor_mode(regs)],
thumb_mode(regs) ? " (T)" : "");
}
void do_undefined_instruction(struct pt_regs *pt_regs)
{
printf("undefined instruction\n");
show_regs(pt_regs);
bad_mode();
}
void do_software_interrupt(struct pt_regs *pt_regs)
{
printf("software interrupt\n");
show_regs(pt_regs);
bad_mode();
}
void do_prefetch_abort(struct pt_regs *pt_regs)
{
printf("prefetch abort\n");
show_regs(pt_regs);
bad_mode();
}
void do_data_abort(struct pt_regs *pt_regs)
{
printf("data abort\n");
show_regs(pt_regs);
bad_mode();
}
void do_not_used(struct pt_regs *pt_regs)
{
printf("not used\n");
show_regs(pt_regs);
bad_mode();
}
void do_fiq(struct pt_regs *pt_regs)
{
printf("fast interrupt request\n");
show_regs(pt_regs);
bad_mode();
}
void do_irq(struct pt_regs *pt_regs)
{
printf("interrupt request\n");
show_regs(pt_regs);
bad_mode();
}
static ulong timestamp;
static ulong lastinc;
int interrupt_init (void)
{
tmr = AT91C_BASE_TC0;
/* enables TC1.0 clock */
*AT91C_PMC_PCER = 1 << AT91C_ID_TC0; /* enable clock */
*AT91C_TCB0_BCR = 0;
*AT91C_TCB0_BMR = AT91C_TCB_TC0XC0S_NONE | AT91C_TCB_TC1XC1S_NONE | AT91C_TCB_TC2XC2S_NONE;
tmr->TC_CCR = AT91C_TC_CLKDIS;
tmr->TC_CMR = AT91C_TC_TIMER_DIV1_CLOCK; /* set to MCLK/2 */
tmr->TC_IDR = ~0ul;
tmr->TC_RC = TIMER_LOAD_VAL;
lastinc = TIMER_LOAD_VAL;
tmr->TC_CCR = AT91C_TC_SWTRG | AT91C_TC_CLKEN;
timestamp = 0;
return (0);
}
/*
* timer without interrupts
*/
void reset_timer(void)
{
reset_timer_masked();
}
ulong get_timer (ulong base)
{
return get_timer_masked() - base;
}
void set_timer (ulong t)
{
timestamp = t;
}
void udelay(unsigned long usec)
{
udelay_masked(usec);
}
void reset_timer_masked(void)
{
/* reset time */
lastinc = READ_TIMER;
timestamp = 0;
}
ulong get_timer_masked(void)
{
ulong now = READ_TIMER;
if (now >= lastinc)
{
/* normal mode */
timestamp += now - lastinc;
} else {
/* we have an overflow ... */
timestamp += now + TIMER_LOAD_VAL - lastinc;
}
lastinc = now;
return timestamp;
}
void udelay_masked(unsigned long usec)
{
ulong tmo;
tmo = usec / 1000;
tmo *= CFG_HZ;
tmo /= 1000;
reset_timer_masked();
while(get_timer_masked() < tmo);
/*NOP*/;
}

89
cpu/at91rm9200/serial.c Normal file
View File

@@ -0,0 +1,89 @@
/*
* (C) Copyright 2002
* Lineo, Inc <www.lineo.com>
* Bernhard Kuhn <bkuhn@lineo.com>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <common.h>
#include <asm/io.h>
/* ggi thunder */
AT91PS_USART us = (AT91PS_USART) AT91C_BASE_DBGU;
void serial_setbrg(void)
{
DECLARE_GLOBAL_DATA_PTR;
int baudrate;
if ((baudrate = gd->bd->bi_baudrate) <= 0)
baudrate = CONFIG_BAUDRATE;
us->US_BRGR = 33 /* AT91C_MASTER_CLOCK / baudrate / 16 */; /* hardcode so no __divsi3 */
}
int serial_init(void)
{
/* make any port initializations specific to this port */
*AT91C_PIOA_PDR = AT91C_PA31_DTXD | AT91C_PA30_DRXD; /* PA 31 & 30 */
*AT91C_PMC_PCER = 1 << AT91C_ID_SYS; /* enable clock */
serial_setbrg();
us->US_CR = AT91C_US_RSTRX | AT91C_US_RSTTX;
us->US_CR = AT91C_US_RXEN | AT91C_US_TXEN;
us->US_MR = ( AT91C_US_CLKS_CLOCK | AT91C_US_CHRL_8_BITS | AT91C_US_PAR_NONE | AT91C_US_NBSTOP_1_BIT );
us->US_IMR = ~0ul;
return (0);
}
void serial_putc(const char c)
{
if (c == '\n')
serial_putc('\r');
while( (us->US_CSR & AT91C_US_TXRDY) == 0 )
;
us->US_THR=c;
}
void
serial_puts (const char *s)
{
while (*s)
{
serial_putc (*s++);
}
}
int serial_getc(void)
{
while( (us->US_CSR & AT91C_US_RXRDY) == 0 );
return us->US_RHR;
}
int serial_tstc(void)
{
return ((us->US_CSR & AT91C_US_RXRDY) == AT91C_US_RXRDY);
}

347
cpu/at91rm9200/start.S Normal file
View File

@@ -0,0 +1,347 @@
/*
* armboot - Startup Code for ARM720 CPU-core
*
* Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
* Copyright (c) 2002 Alex Züpke <azu@sysgo.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include "config.h"
#include "version.h"
/*
*************************************************************************
*
* Jump vector table as in table 3.1 in [1]
*
*************************************************************************
*/
.globl _start
_start: b reset
ldr pc, _undefined_instruction
ldr pc, _software_interrupt
ldr pc, _prefetch_abort
ldr pc, _data_abort
ldr pc, _not_used
ldr pc, _irq
ldr pc, _fiq
_undefined_instruction: .word undefined_instruction
_software_interrupt: .word software_interrupt
_prefetch_abort: .word prefetch_abort
_data_abort: .word data_abort
_not_used: .word not_used
_irq: .word irq
_fiq: .word fiq
.balignl 16,0xdeadbeef
/*
*************************************************************************
*
* Startup Code (reset vector)
*
* do important init only if we don't start from memory!
* relocate armboot to ram
* setup stack
* jump to second stage
*
*************************************************************************
*/
/*
* CFG_MEM_END is in the board dependent config-file (configs/config_BOARD.h)
*/
_TEXT_BASE:
.word TEXT_BASE
.globl _armboot_start
_armboot_start:
.word _start
/*
* Note: _armboot_end_data and _armboot_end are defined
* by the (board-dependent) linker script.
* _armboot_end_data is the first usable FLASH address after armboot
*/
.globl _armboot_end_data
_armboot_end_data:
.word armboot_end_data
/*
* Note: armboot_end is defined by the (board-dependent) linker script
*/
.globl _armboot_end
_armboot_end:
.word armboot_end
/*
* _armboot_real_end is the first usable RAM address behind armboot
* and the various stacks
*/
.globl _armboot_real_end
_armboot_real_end:
.word 0x0badc0de
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
IRQ_STACK_START:
.word 0x0badc0de
/* IRQ stack memory (calculated at run-time) */
.globl FIQ_STACK_START
FIQ_STACK_START:
.word 0x0badc0de
#endif
/*
* the actual reset code
*/
reset:
/*
* set the cpu to SVC32 mode
*/
mrs r0,cpsr
bic r0,r0,#0x1f
orr r0,r0,#0x13
msr cpsr,r0
/*
* relocate exeception table
*/
ldr r0, =_start
ldr r1, =0x0
mov r2, #16
copyex:
subs r2, r2, #1
ldr r3, [r0], #4
str r3, [r1], #4
bne copyex
/*
* we do sys-critical inits only at reboot,
* not when booting from ram!
*/
#ifdef CONFIG_INIT_CRITICAL
bl cpu_init_crit
#endif
/* set up the stack */
ldr r0, _armboot_end
add r0, r0, #CONFIG_STACKSIZE
sub sp, r0, #12 /* leave 3 words for abort-stack */
ldr pc,_start_armboot
_start_armboot: .word start_armboot
/*
*************************************************************************
*
* CPU_init_critical registers
*
*************************************************************************
*/
cpu_init_crit:
# actually do nothing for now!
mov pc, lr
/*
*************************************************************************
*
* Interrupt handling
*
*************************************************************************
*/
@
@ IRQ stack frame.
@
#define S_FRAME_SIZE 72
#define S_OLD_R0 68
#define S_PSR 64
#define S_PC 60
#define S_LR 56
#define S_SP 52
#define S_IP 48
#define S_FP 44
#define S_R10 40
#define S_R9 36
#define S_R8 32
#define S_R7 28
#define S_R6 24
#define S_R5 20
#define S_R4 16
#define S_R3 12
#define S_R2 8
#define S_R1 4
#define S_R0 0
#define MODE_SVC 0x13
#define I_BIT 0x80
/*
* use bad_save_user_regs for abort/prefetch/undef/swi ...
* use irq_save_user_regs / irq_restore_user_regs for IRQ/FIQ handling
*/
.macro bad_save_user_regs
sub sp, sp, #S_FRAME_SIZE
stmia sp, {r0 - r12} @ Calling r0-r12
add r8, sp, #S_PC
ldr r2, _armboot_end
add r2, r2, #CONFIG_STACKSIZE
sub r2, r2, #8
ldmia r2, {r2 - r4} @ get pc, cpsr, old_r0
add r0, sp, #S_FRAME_SIZE @ restore sp_SVC
add r5, sp, #S_SP
mov r1, lr
stmia r5, {r0 - r4} @ save sp_SVC, lr_SVC, pc, cpsr, old_r
mov r0, sp
.endm
.macro irq_save_user_regs
sub sp, sp, #S_FRAME_SIZE
stmia sp, {r0 - r12} @ Calling r0-r12
add r8, sp, #S_PC
stmdb r8, {sp, lr}^ @ Calling SP, LR
str lr, [r8, #0] @ Save calling PC
mrs r6, spsr
str r6, [r8, #4] @ Save CPSR
str r0, [r8, #8] @ Save OLD_R0
mov r0, sp
.endm
.macro irq_restore_user_regs
ldmia sp, {r0 - lr}^ @ Calling r0 - lr
mov r0, r0
ldr lr, [sp, #S_PC] @ Get PC
add sp, sp, #S_FRAME_SIZE
subs pc, lr, #4 @ return & move spsr_svc into cpsr
.endm
.macro get_bad_stack
ldr r13, _armboot_end @ setup our mode stack
add r13, r13, #CONFIG_STACKSIZE @ resides at top of normal stack
sub r13, r13, #8
str lr, [r13] @ save caller lr / spsr
mrs lr, spsr
str lr, [r13, #4]
mov r13, #MODE_SVC @ prepare SVC-Mode
msr spsr_c, r13
mov lr, pc
movs pc, lr
.endm
.macro get_irq_stack @ setup IRQ stack
ldr sp, IRQ_STACK_START
.endm
.macro get_fiq_stack @ setup FIQ stack
ldr sp, FIQ_STACK_START
.endm
/*
* exception handlers
*/
.align 5
undefined_instruction:
get_bad_stack
bad_save_user_regs
bl do_undefined_instruction
.align 5
software_interrupt:
get_bad_stack
bad_save_user_regs
bl do_software_interrupt
.align 5
prefetch_abort:
get_bad_stack
bad_save_user_regs
bl do_prefetch_abort
.align 5
data_abort:
get_bad_stack
bad_save_user_regs
bl do_data_abort
.align 5
not_used:
get_bad_stack
bad_save_user_regs
bl do_not_used
#ifdef CONFIG_USE_IRQ
.align 5
irq:
get_irq_stack
irq_save_user_regs
bl do_irq
irq_restore_user_regs
.align 5
fiq:
get_fiq_stack
/* someone ought to write a more effiction fiq_save_user_regs */
irq_save_user_regs
bl do_fiq
irq_restore_user_regs
#else
.align 5
irq:
get_bad_stack
bad_save_user_regs
bl do_irq
.align 5
fiq:
get_bad_stack
bad_save_user_regs
bl do_fiq
#endif
.align 5
.globl reset_cpu
reset_cpu:
mov pc, r0

44
cpu/mips/Makefile Normal file
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#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(CPU).a
START = start.o
OBJS = interrupts.o cpu.o incaip_clock.o serial.o
SOBJS = incaip_wdt.o cache.o
all: .depend $(START) $(LIB)
$(LIB): $(OBJS) $(SOBJS)
$(AR) crv $@ $(OBJS) $(SOBJS)
#########################################################################
.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@
sinclude .depend
#########################################################################

270
cpu/mips/cache.S Normal file
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/*
* Cache-handling routined for MIPS 4K CPUs
*
* Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
#include <asm/regdef.h>
#include <asm/mipsregs.h>
#include <asm/addrspace.h>
#include <asm/cacheops.h>
/* 16KB is the maximum size of instruction and data caches on
* MIPS 4K.
*/
#define MIPS_MAX_CACHE_SIZE 0x4000
/*
* cacheop macro to automate cache operations
* first some helpers...
*/
#define _mincache(size, maxsize) \
bltu size,maxsize,9f ; \
move size,maxsize ; \
9:
#define _align(minaddr, maxaddr, linesize) \
.set noat ; \
subu AT,linesize,1 ; \
not AT ; \
and minaddr,AT ; \
addu maxaddr,-1 ; \
and maxaddr,AT ; \
.set at
/* general operations */
#define doop1(op1) \
cache op1,0(a0)
#define doop2(op1, op2) \
cache op1,0(a0) ; \
nop ; \
cache op2,0(a0)
/* specials for cache initialisation */
#define doop1lw(op1) \
lw zero,0(a0)
#define doop1lw1(op1) \
cache op1,0(a0) ; \
lw zero,0(a0) ; \
cache op1,0(a0)
#define doop121(op1,op2) \
cache op1,0(a0) ; \
nop; \
cache op2,0(a0) ; \
nop; \
cache op1,0(a0)
#define _oploopn(minaddr, maxaddr, linesize, tag, ops) \
.set noreorder ; \
10: doop##tag##ops ; \
bne minaddr,maxaddr,10b ; \
add minaddr,linesize ; \
.set reorder
/* finally the cache operation macros */
#define vcacheopn(kva, n, cacheSize, cacheLineSize, tag, ops) \
blez n,11f ; \
addu n,kva ; \
_align(kva, n, cacheLineSize) ; \
_oploopn(kva, n, cacheLineSize, tag, ops) ; \
11:
#define icacheopn(kva, n, cacheSize, cacheLineSize, tag, ops) \
_mincache(n, cacheSize); \
blez n,11f ; \
addu n,kva ; \
_align(kva, n, cacheLineSize) ; \
_oploopn(kva, n, cacheLineSize, tag, ops) ; \
11:
#define vcacheop(kva, n, cacheSize, cacheLineSize, op) \
vcacheopn(kva, n, cacheSize, cacheLineSize, 1, (op))
#define icacheop(kva, n, cacheSize, cacheLineSize, op) \
icacheopn(kva, n, cacheSize, cacheLineSize, 1, (op))
/*******************************************************************************
*
* mips_cache_reset - low level initialisation of the primary caches
*
* This routine initialises the primary caches to ensure that they
* have good parity. It must be called by the ROM before any cached locations
* are used to prevent the possibility of data with bad parity being written to
* memory.
* To initialise the instruction cache it is essential that a source of data
* with good parity is available. This routine
* will initialise an area of memory starting at location zero to be used as
* a source of parity.
*
* RETURNS: N/A
*
*/
.globl mips_cache_reset
.ent mips_cache_reset
mips_cache_reset:
li t2, CFG_ICACHE_SIZE
li t3, CFG_DCACHE_SIZE
li t4, CFG_CACHELINE_SIZE
move t5, t4
li v0, MIPS_MAX_CACHE_SIZE
/* Now clear that much memory starting from zero.
*/
li a0, KSEG1
addu a1, a0, v0
2: sw zero, 0(a0)
sw zero, 4(a0)
sw zero, 8(a0)
sw zero, 12(a0)
sw zero, 16(a0)
sw zero, 20(a0)
sw zero, 24(a0)
sw zero, 28(a0)
addu a0, 32
bltu a0, a1, 2b
/* Set invalid tag.
*/
mtc0 zero, CP0_TAGLO
/*
* The caches are probably in an indeterminate state,
* so we force good parity into them by doing an
* invalidate, load/fill, invalidate for each line.
*/
/* Assume bottom of RAM will generate good parity for the cache.
*/
li a0, K0BASE
move a2, t2 # icacheSize
move a3, t4 # icacheLineSize
move a1, a2
icacheopn(a0,a1,a2,a3,121,(Index_Store_Tag_I,Fill))
/* To support Orion/R4600, we initialise the data cache in 3 passes.
*/
/* 1: initialise dcache tags.
*/
li a0, K0BASE
move a2, t3 # dcacheSize
move a3, t5 # dcacheLineSize
move a1, a2
icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
/* 2: fill dcache.
*/
li a0, K0BASE
move a2, t3 # dcacheSize
move a3, t5 # dcacheLineSize
move a1, a2
icacheopn(a0,a1,a2,a3,1lw,(dummy))
/* 3: clear dcache tags.
*/
li a0, K0BASE
move a2, t3 # dcacheSize
move a3, t5 # dcacheLineSize
move a1, a2
icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
j ra
.end mips_cache_reset
/*******************************************************************************
*
* dcache_status - get cache status
*
* RETURNS: 0 - cache disabled; 1 - cache enabled
*
*/
.globl dcache_status
.ent dcache_status
dcache_status:
mfc0 v0, CP0_CONFIG
andi v0, v0, 1
j ra
.end dcache_status
/*******************************************************************************
*
* dcache_disable - disable cache
*
* RETURNS: N/A
*
*/
.globl dcache_disable
.ent dcache_disable
dcache_disable:
mfc0 t0, CP0_CONFIG
li t1, -8
and t0, t0, t1
ori t0, t0, CONF_CM_UNCACHED
mtc0 t0, CP0_CONFIG
j ra
.end dcache_disable
/*******************************************************************************
*
* mips_cache_lock - lock RAM area pointed to by a0 in cache.
*
* RETURNS: N/A
*
*/
#if defined(CONFIG_INCA_IP)
# define CACHE_LOCK_SIZE (CFG_DCACHE_SIZE)
#elif defined(CONFIG_PURPLE)
# define CACHE_LOCK_SIZE (CFG_DCACHE_SIZE/2)
#endif
.globl mips_cache_lock
.ent mips_cache_lock
mips_cache_lock:
li a1, K0BASE - CACHE_LOCK_SIZE
addu a0, a1
li a2, CACHE_LOCK_SIZE
li a3, CFG_CACHELINE_SIZE
move a1, a2
icacheop(a0,a1,a2,a3,0x1d)
j ra
.end mips_cache_lock

25
cpu/mips/config.mk Normal file
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#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
PLATFORM_CPPFLAGS += -mcpu=4kc -EB -mabicalls

45
cpu/mips/cpu.c Normal file
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/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <asm/inca-ip.h>
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
#if defined(CONFIG_INCA_IP)
*INCA_IP_WDT_RST_REQ = 0x3f;
#elif defined(CONFIG_PURPLE)
void (*f)(void) = (void *) 0xbfc00000;
f();
#endif
fprintf(stderr, "*** reset failed ***\n");
return 0;
}
void flush_cache (ulong start_addr, ulong size)
{
}

107
cpu/mips/incaip_clock.c Normal file
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/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/inca-ip.h>
/*******************************************************************************
*
* get_cpuclk - returns the frequency of the CPU.
*
* Gets the value directly from the INCA-IP hardware.
*
* RETURNS:
* 150.000.000 for 150 MHz
* 130.000.000. for 130 Mhz
* 100.000.000. for 100 Mhz
* NOTE:
* This functions should be used by the hardware driver to get the correct
* frequency of the CPU. Don't use the macros, which are set to init the CPU
* frequency in the ROM code.
*/
uint incaip_get_cpuclk(void)
{
/*-------------------------------------------------------------------------*/
/* CPU Clock Input Multiplexer (MUX I) */
/* Multiplexer MUX I selects the maximum input clock to the CPU. */
/*-------------------------------------------------------------------------*/
if (*((volatile ulong*)INCA_IP_CGU_CGU_MUXCR) & INCA_IP_CGU_CGU_MUXCR_MUXI)
{
/* MUX I set to 150 MHz clock */
return 150000000;
}
else
{
/* MUX I set to 100/133 MHz clock */
if (*((volatile ulong*)INCA_IP_CGU_CGU_DIVCR) & 0x40)
{
/* Division value is 1/3, maximum CPU operating */
/* frequency is 133.3 MHz */
return 130000000;
}
else
{
/* Division value is 1/4, maximum CPU operating */
/* frequency is 100 MHz */
return 100000000;
}
}
}
/*******************************************************************************
*
* get_fpiclk - returns the frequency of the FPI bus.
*
* Gets the value directly from the INCA-IP hardware.
*
* RETURNS: Frquency in Hz
*
* NOTE:
* This functions should be used by the hardware driver to get the correct
* frequency of the CPU. Don't use the macros, which are set to init the CPU
* frequency in the ROM code.
* The calculation for the
*/
uint incaip_get_fpiclk(void)
{
uint clkCPU;
clkCPU = incaip_get_cpuclk();
switch (*((volatile ulong*)INCA_IP_CGU_CGU_DIVCR) & 0xC)
{
case 0x4:
return clkCPU >> 1; /* devided by 2 */
break;
case 0x8:
return clkCPU >> 2; /* devided by 4 */
break;
default:
return clkCPU;
break;
}
}

73
cpu/mips/incaip_wdt.S Normal file
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/*
* INCA-IP Watchdog timer management code.
*
* Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
#include <asm/regdef.h>
#define WD_BASE 0xb8000000
#define WD_CON0(value) 0x0020(value)
#define WD_CON1(value) 0x0024(value)
#define WD_DISABLE 0x00000008
#define WD_ENABLE 0x00000000
#define WD_WRITE_PW 0xFFFC00F8
#define WD_WRITE_ENDINIT 0xFFFC00F3
#define WD_WRITE_INIT 0xFFFC00F2
.globl disable_incaip_wdt
disable_incaip_wdt:
li t0, WD_BASE
/* Calculate password.
*/
lw t2, WD_CON1(t0)
and t2, 0xC
lw t3, WD_CON0(t0)
and t3, 0xFFFFFF01
or t3, t2
or t3, 0xF0
sw t3, WD_CON0(t0) /* write password */
/* Clear ENDINIT.
*/
li t1, WD_WRITE_INIT
sw t1, WD_CON0(t0)
li t1, WD_DISABLE
sw t1, WD_CON1(t0) /* disable watchdog */
li t1, WD_WRITE_PW
sw t1, WD_CON0(t0) /* write password */
li t1, WD_WRITE_ENDINIT
sw t1, WD_CON0(t0) /* end command */
j ra
nop

34
cpu/mips/interrupts.c Normal file
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/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
void enable_interrupts(void)
{
}
int disable_interrupts(void)
{
return 0;
}

368
cpu/mips/serial.c Normal file
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/*
* (INCA) ASC UART support
*/
#include <config.h>
#ifdef CONFIG_PURPLE
#define serial_init asc_serial_init
#define serial_putc asc_serial_putc
#define serial_puts asc_serial_puts
#define serial_getc asc_serial_getc
#define serial_tstc asc_serial_tstc
#define serial_setbrg asc_serial_setbrg
#endif
#include <common.h>
#include <asm/inca-ip.h>
#include "serial.h"
#ifdef CONFIG_PURPLE
#undef ASC_FIFO_PRESENT
#define TOUT_LOOP 100000
/* Set base address for second FPI interrupt control register bank */
#define SFPI_INTCON_BASEADDR 0xBF0F0000
/* Register offset from base address */
#define FBS_ISR 0x00000000 /* Interrupt status register */
#define FBS_IMR 0x00000008 /* Interrupt mask register */
#define FBS_IDIS 0x00000010 /* Interrupt disable register */
/* Interrupt status register bits */
#define FBS_ISR_AT 0x00000040 /* ASC transmit interrupt */
#define FBS_ISR_AR 0x00000020 /* ASC receive interrupt */
#define FBS_ISR_AE 0x00000010 /* ASC error interrupt */
#define FBS_ISR_AB 0x00000008 /* ASC transmit buffer interrupt */
#define FBS_ISR_AS 0x00000004 /* ASC start of autobaud detection interrupt */
#define FBS_ISR_AF 0x00000002 /* ASC end of autobaud detection interrupt */
#else
#define ASC_FIFO_PRESENT
#endif
#define SET_BIT(reg, mask) reg |= (mask)
#define CLEAR_BIT(reg, mask) reg &= (~mask)
#define CLEAR_BITS(reg, mask) CLEAR_BIT(reg, mask)
#define SET_BITS(reg, mask) SET_BIT(reg, mask)
#define SET_BITFIELD(reg, mask, off, val) {reg &= (~mask); reg |= (val << off);}
extern uint incaip_get_fpiclk(void);
static int serial_setopt (void);
/* pointer to ASC register base address */
static volatile incaAsc_t *pAsc = (incaAsc_t *)INCA_IP_ASC;
/******************************************************************************
*
* serial_init - initialize a INCAASC channel
*
* This routine initializes the number of data bits, parity
* and set the selected baud rate. Interrupts are disabled.
* Set the modem control signals if the option is selected.
*
* RETURNS: N/A
*/
int serial_init (void)
{
#ifdef CONFIG_INCA_IP
/* we have to set PMU.EN13 bit to enable an ASC device*/
INCAASC_PMU_ENABLE(13);
#endif
/* and we have to set CLC register*/
CLEAR_BIT(pAsc->asc_clc, ASCCLC_DISS);
SET_BITFIELD(pAsc->asc_clc, ASCCLC_RMCMASK, ASCCLC_RMCOFFSET, 0x0001);
/* initialy we are in async mode */
pAsc->asc_con = ASCCON_M_8ASYNC;
/* select input port */
pAsc->asc_pisel = (CONSOLE_TTY & 0x1);
#ifdef ASC_FIFO_PRESENT
/* TXFIFO's filling level */
SET_BITFIELD(pAsc->asc_txfcon, ASCTXFCON_TXFITLMASK,
ASCTXFCON_TXFITLOFF, INCAASC_TXFIFO_FL);
/* enable TXFIFO */
SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXFEN);
/* RXFIFO's filling level */
SET_BITFIELD(pAsc->asc_txfcon, ASCRXFCON_RXFITLMASK,
ASCRXFCON_RXFITLOFF, INCAASC_RXFIFO_FL);
/* enable RXFIFO */
SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXFEN);
#endif
/* enable error signals */
SET_BIT(pAsc->asc_con, ASCCON_FEN);
SET_BIT(pAsc->asc_con, ASCCON_OEN);
#ifdef CONFIG_INCA_IP
/* acknowledge ASC interrupts */
ASC_INTERRUPTS_CLEAR(INCAASC_IRQ_LINE_ALL);
/* disable ASC interrupts */
ASC_INTERRUPTS_DISABLE(INCAASC_IRQ_LINE_ALL);
#endif
#ifdef ASC_FIFO_PRESENT
/* set FIFOs into the transparent mode */
SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXTMEN);
SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXTMEN);
#endif
/* set baud rate */
serial_setbrg();
/* set the options */
serial_setopt();
return 0;
}
void serial_setbrg (void)
{
ulong uiReloadValue, fdv;
ulong f_ASC;
#ifdef CONFIG_INCA_IP
f_ASC = incaip_get_fpiclk();
#else
f_ASC = ASC_CLOCK_RATE;
#endif
#ifndef INCAASC_USE_FDV
fdv = 2;
uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1;
#else
fdv = INCAASC_FDV_HIGH_BAUDRATE;
uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1;
#endif /* INCAASC_USE_FDV */
if ( (uiReloadValue < 0) || (uiReloadValue > 8191) )
{
#ifndef INCAASC_USE_FDV
fdv = 3;
uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1;
#else
fdv = INCAASC_FDV_LOW_BAUDRATE;
uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1;
#endif /* INCAASC_USE_FDV */
if ( (uiReloadValue < 0) || (uiReloadValue > 8191) )
{
return; /* can't impossibly generate that baud rate */
}
}
/* Disable Baud Rate Generator; BG should only be written when R=0 */
CLEAR_BIT(pAsc->asc_con, ASCCON_R);
#ifndef INCAASC_USE_FDV
/*
* Disable Fractional Divider (FDE)
* Divide clock by reload-value + constant (BRS)
*/
/* FDE = 0 */
CLEAR_BIT(pAsc->asc_con, ASCCON_FDE);
if ( fdv == 2 )
CLEAR_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 0 */
else
SET_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 1 */
#else /* INCAASC_USE_FDV */
/* Enable Fractional Divider */
SET_BIT(pAsc->asc_con, ASCCON_FDE); /* FDE = 1 */
/* Set fractional divider value */
pAsc->asc_fdv = fdv & ASCFDV_VALUE_MASK;
#endif /* INCAASC_USE_FDV */
/* Set reload value in BG */
pAsc->asc_bg = uiReloadValue;
/* Enable Baud Rate Generator */
SET_BIT(pAsc->asc_con, ASCCON_R); /* R = 1 */
}
/*******************************************************************************
*
* serial_setopt - set the serial options
*
* Set the channel operating mode to that specified. Following options
* are supported: CREAD, CSIZE, PARENB, and PARODD.
*
* Note, this routine disables the transmitter. The calling routine
* may have to re-enable it.
*
* RETURNS:
* Returns 0 to indicate success, otherwise -1 is returned
*/
static int serial_setopt (void)
{
ulong con;
switch ( ASC_OPTIONS & ASCOPT_CSIZE )
{
/* 7-bit-data */
case ASCOPT_CS7:
con = ASCCON_M_7ASYNCPAR; /* 7-bit-data and parity bit */
break;
/* 8-bit-data */
case ASCOPT_CS8:
if ( ASC_OPTIONS & ASCOPT_PARENB )
con = ASCCON_M_8ASYNCPAR; /* 8-bit-data and parity bit */
else
con = ASCCON_M_8ASYNC; /* 8-bit-data no parity */
break;
/*
* only 7 and 8-bit frames are supported
* if we don't use IOCTL extensions
*/
default:
return -1;
}
if ( ASC_OPTIONS & ASCOPT_STOPB )
SET_BIT(con, ASCCON_STP); /* 2 stop bits */
else
CLEAR_BIT(con, ASCCON_STP); /* 1 stop bit */
if ( ASC_OPTIONS & ASCOPT_PARENB )
SET_BIT(con, ASCCON_PEN); /* enable parity checking */
else
CLEAR_BIT(con, ASCCON_PEN); /* disable parity checking */
if ( ASC_OPTIONS & ASCOPT_PARODD )
SET_BIT(con, ASCCON_ODD); /* odd parity */
else
CLEAR_BIT(con, ASCCON_ODD); /* even parity */
if ( ASC_OPTIONS & ASCOPT_CREAD )
SET_BIT(pAsc->asc_whbcon, ASCWHBCON_SETREN); /* Receiver enable */
pAsc->asc_con |= con;
return 0;
}
void serial_putc (const char c)
{
#ifdef ASC_FIFO_PRESENT
uint txFl = 0;
#else
uint timeout = 0;
#endif
if (c == '\n') serial_putc ('\r');
#ifdef ASC_FIFO_PRESENT
/* check do we have a free space in the TX FIFO */
/* get current filling level */
do
{
txFl = ( pAsc->asc_fstat & ASCFSTAT_TXFFLMASK ) >> ASCFSTAT_TXFFLOFF;
}
while ( txFl == INCAASC_TXFIFO_FULL );
#else
while(!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) &
FBS_ISR_AB))
{
if (timeout++ > TOUT_LOOP)
{
break;
}
}
#endif
pAsc->asc_tbuf = c; /* write char to Transmit Buffer Register */
#ifndef ASC_FIFO_PRESENT
*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) = FBS_ISR_AB |
FBS_ISR_AT;
#endif
/* check for errors */
if ( pAsc->asc_con & ASCCON_OE )
{
SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE);
return;
}
}
void serial_puts (const char *s)
{
while (*s)
{
serial_putc (*s++);
}
}
int serial_getc (void)
{
ulong symbol_mask;
char c;
while (!serial_tstc());
symbol_mask =
((ASC_OPTIONS & ASCOPT_CSIZE) == ASCOPT_CS7) ? (0x7f) : (0xff);
c = (char)(pAsc->asc_rbuf & symbol_mask);
#ifndef ASC_FIFO_PRESENT
*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) = FBS_ISR_AR;
#endif
return c;
}
int serial_tstc (void)
{
int res = 1;
#ifdef ASC_FIFO_PRESENT
if ( (pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 )
{
res = 0;
}
#else
if (!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) &
FBS_ISR_AR))
{
res = 0;
}
#endif
else if ( pAsc->asc_con & ASCCON_FE )
{
SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRFE);
res = 0;
}
else if ( pAsc->asc_con & ASCCON_PE )
{
SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRPE);
res = 0;
}
else if ( pAsc->asc_con & ASCCON_OE )
{
SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE);
res = 0;
}
return res;
}

178
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/* incaAscSio.h - (INCA) ASC UART tty driver header */
#ifndef __INCincaAscSioh
#define __INCincaAscSioh
#include <asm/inca-ip.h>
/* channel operating modes */
#define ASCOPT_CSIZE 0x00000003
#define ASCOPT_CS7 0x00000001
#define ASCOPT_CS8 0x00000002
#define ASCOPT_PARENB 0x00000004
#define ASCOPT_STOPB 0x00000008
#define ASCOPT_PARODD 0x00000010
#define ASCOPT_CREAD 0x00000020
#define ASC_OPTIONS (ASCOPT_CREAD | ASCOPT_CS8)
/* ASC input select (0 or 1) */
#define CONSOLE_TTY 0
/* use fractional divider for baudrate settings */
#define INCAASC_USE_FDV
#ifdef INCAASC_USE_FDV
#define INCAASC_FDV_LOW_BAUDRATE 71
#define INCAASC_FDV_HIGH_BAUDRATE 453
#endif /*INCAASC_USE_FDV*/
#define INCAASC_TXFIFO_FL 1
#define INCAASC_RXFIFO_FL 1
#define INCAASC_TXFIFO_FULL 16
/* interrupt lines masks for the ASC device interrupts*/
/* change these macroses if it's necessary */
#define INCAASC_IRQ_LINE_ALL 0x000F0000 /* all IRQs */
#define INCAASC_IRQ_LINE_TIR 0x00010000 /* TIR - Tx */
#define INCAASC_IRQ_LINE_RIR 0x00020000 /* RIR - Rx */
#define INCAASC_IRQ_LINE_EIR 0x00040000 /* EIR - Err */
#define INCAASC_IRQ_LINE_TBIR 0x00080000 /* TBIR - Tx Buf*/
/* interrupt controller access macros */
#define ASC_INTERRUPTS_ENABLE(X) \
*((volatile unsigned int*) INCA_IP_ICU_IM2_IER) |= X;
#define ASC_INTERRUPTS_DISABLE(X) \
*((volatile unsigned int*) INCA_IP_ICU_IM2_IER) &= ~X;
#define ASC_INTERRUPTS_CLEAR(X) \
*((volatile unsigned int*) INCA_IP_ICU_IM2_ISR) = X;
/* CLC register's bits and bitfields */
#define ASCCLC_DISR 0x00000001
#define ASCCLC_DISS 0x00000002
#define ASCCLC_RMCMASK 0x0000FF00
#define ASCCLC_RMCOFFSET 8
/* CON register's bits and bitfields */
#define ASCCON_MODEMASK 0x0007
#define ASCCON_M_8SYNC 0x0
#define ASCCON_M_8ASYNC 0x1
#define ASCCON_M_8IRDAASYNC 0x2
#define ASCCON_M_7ASYNCPAR 0x3
#define ASCCON_M_9ASYNC 0x4
#define ASCCON_M_8WAKEUPASYNC 0x5
#define ASCCON_M_8ASYNCPAR 0x7
#define ASCCON_STP 0x0008
#define ASCCON_REN 0x0010
#define ASCCON_PEN 0x0020
#define ASCCON_FEN 0x0040
#define ASCCON_OEN 0x0080
#define ASCCON_PE 0x0100
#define ASCCON_FE 0x0200
#define ASCCON_OE 0x0400
#define ASCCON_FDE 0x0800
#define ASCCON_ODD 0x1000
#define ASCCON_BRS 0x2000
#define ASCCON_LB 0x4000
#define ASCCON_R 0x8000
/* WHBCON register's bits and bitfields */
#define ASCWHBCON_CLRREN 0x0010
#define ASCWHBCON_SETREN 0x0020
#define ASCWHBCON_CLRPE 0x0100
#define ASCWHBCON_CLRFE 0x0200
#define ASCWHBCON_CLROE 0x0400
#define ASCWHBCON_SETPE 0x0800
#define ASCWHBCON_SETFE 0x1000
#define ASCWHBCON_SETOE 0x2000
/* ABCON register's bits and bitfields */
#define ASCABCON_ABEN 0x0001
#define ASCABCON_AUREN 0x0002
#define ASCABCON_ABSTEN 0x0004
#define ASCABCON_ABDETEN 0x0008
#define ASCABCON_FCDETEN 0x0010
#define ASCABCON_EMMASK 0x0300
#define ASCABCON_EMOFF 8
#define ASCABCON_EM_DISAB 0x0
#define ASCABCON_EM_DURAB 0x1
#define ASCABCON_EM_ALWAYS 0x2
#define ASCABCON_TXINV 0x0400
#define ASCABCON_RXINV 0x0800
/* FDV register mask, offset and bitfields*/
#define ASCFDV_VALUE_MASK 0x000001FF
/* WHBABCON register's bits and bitfields */
#define ASCWHBABCON_SETABEN 0x0001
#define ASCWHBABCON_CLRABEN 0x0002
/* ABSTAT register's bits and bitfields */
#define ASCABSTAT_FCSDET 0x0001
#define ASCABSTAT_FCCDET 0x0002
#define ASCABSTAT_SCSDET 0x0004
#define ASCABSTAT_SCCDET 0x0008
#define ASCABSTAT_DETWAIT 0x0010
/* WHBABSTAT register's bits and bitfields */
#define ASCWHBABSTAT_CLRFCSDET 0x0001
#define ASCWHBABSTAT_SETFCSDET 0x0002
#define ASCWHBABSTAT_CLRFCCDET 0x0004
#define ASCWHBABSTAT_SETFCCDET 0x0008
#define ASCWHBABSTAT_CLRSCSDET 0x0010
#define ASCWHBABSTAT_SETSCSDET 0x0020
#define ASCWHBABSTAT_SETSCCDET 0x0040
#define ASCWHBABSTAT_CLRSCCDET 0x0080
#define ASCWHBABSTAT_CLRDETWAIT 0x0100
#define ASCWHBABSTAT_SETDETWAIT 0x0200
/* TXFCON register's bits and bitfields */
#define ASCTXFCON_TXFEN 0x0001
#define ASCTXFCON_TXFFLU 0x0002
#define ASCTXFCON_TXTMEN 0x0004
#define ASCTXFCON_TXFITLMASK 0x3F00
#define ASCTXFCON_TXFITLOFF 8
/* RXFCON register's bits and bitfields */
#define ASCRXFCON_RXFEN 0x0001
#define ASCRXFCON_RXFFLU 0x0002
#define ASCRXFCON_RXTMEN 0x0004
#define ASCRXFCON_RXFITLMASK 0x3F00
#define ASCRXFCON_RXFITLOFF 8
/* FSTAT register's bits and bitfields */
#define ASCFSTAT_RXFFLMASK 0x003F
#define ASCFSTAT_TXFFLMASK 0x3F00
#define ASCFSTAT_TXFFLOFF 8
#define INCAASC_PMU_ENABLE(BIT) *((volatile ulong*)0xBF102000) |= (0x1 << BIT);
typedef struct /* incaAsc_t */
{
volatile unsigned long asc_clc; /*0x0000*/
volatile unsigned long asc_pisel; /*0x0004*/
volatile unsigned long asc_rsvd1[2]; /* for mapping */ /*0x0008*/
volatile unsigned long asc_con; /*0x0010*/
volatile unsigned long asc_bg; /*0x0014*/
volatile unsigned long asc_fdv; /*0x0018*/
volatile unsigned long asc_pmw; /* not used */ /*0x001C*/
volatile unsigned long asc_tbuf; /*0x0020*/
volatile unsigned long asc_rbuf; /*0x0024*/
volatile unsigned long asc_rsvd2[2]; /* for mapping */ /*0x0028*/
volatile unsigned long asc_abcon; /*0x0030*/
volatile unsigned long asc_abstat; /* not used */ /*0x0034*/
volatile unsigned long asc_rsvd3[2]; /* for mapping */ /*0x0038*/
volatile unsigned long asc_rxfcon; /*0x0040*/
volatile unsigned long asc_txfcon; /*0x0044*/
volatile unsigned long asc_fstat; /*0x0048*/
volatile unsigned long asc_rsvd4; /* for mapping */ /*0x004C*/
volatile unsigned long asc_whbcon; /*0x0050*/
volatile unsigned long asc_whbabcon; /*0x0054*/
volatile unsigned long asc_whbabstat; /* not used */ /*0x0058*/
} incaAsc_t;
#endif /* __INCincaAscSioh */

382
cpu/mips/start.S Normal file
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/*
* Startup Code for MIPS32 CPU-core
*
* Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
#include <asm/regdef.h>
#include <asm/mipsregs.h>
#define RVECENT(f,n) \
b f; nop
#define XVECENT(f,bev) \
b f ; \
li k0,bev
.set noreorder
.globl _start
.text
_start:
RVECENT(reset,0) /* U-boot entry point */
RVECENT(reset,1) /* software reboot */
#if defined(CONFIG_INCA_IP)
.word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */
.word 0x00000000 /* phase of the flash */
#elif defined(CONFIG_PURPLE)
.word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */
.word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */
#else
RVECENT(romReserved,2)
#endif
RVECENT(romReserved,3)
RVECENT(romReserved,4)
RVECENT(romReserved,5)
RVECENT(romReserved,6)
RVECENT(romReserved,7)
RVECENT(romReserved,8)
RVECENT(romReserved,9)
RVECENT(romReserved,10)
RVECENT(romReserved,11)
RVECENT(romReserved,12)
RVECENT(romReserved,13)
RVECENT(romReserved,14)
RVECENT(romReserved,15)
RVECENT(romReserved,16)
RVECENT(romReserved,17)
RVECENT(romReserved,18)
RVECENT(romReserved,19)
RVECENT(romReserved,20)
RVECENT(romReserved,21)
RVECENT(romReserved,22)
RVECENT(romReserved,23)
RVECENT(romReserved,24)
RVECENT(romReserved,25)
RVECENT(romReserved,26)
RVECENT(romReserved,27)
RVECENT(romReserved,28)
RVECENT(romReserved,29)
RVECENT(romReserved,30)
RVECENT(romReserved,31)
RVECENT(romReserved,32)
RVECENT(romReserved,33)
RVECENT(romReserved,34)
RVECENT(romReserved,35)
RVECENT(romReserved,36)
RVECENT(romReserved,37)
RVECENT(romReserved,38)
RVECENT(romReserved,39)
RVECENT(romReserved,40)
RVECENT(romReserved,41)
RVECENT(romReserved,42)
RVECENT(romReserved,43)
RVECENT(romReserved,44)
RVECENT(romReserved,45)
RVECENT(romReserved,46)
RVECENT(romReserved,47)
RVECENT(romReserved,48)
RVECENT(romReserved,49)
RVECENT(romReserved,50)
RVECENT(romReserved,51)
RVECENT(romReserved,52)
RVECENT(romReserved,53)
RVECENT(romReserved,54)
RVECENT(romReserved,55)
RVECENT(romReserved,56)
RVECENT(romReserved,57)
RVECENT(romReserved,58)
RVECENT(romReserved,59)
RVECENT(romReserved,60)
RVECENT(romReserved,61)
RVECENT(romReserved,62)
RVECENT(romReserved,63)
XVECENT(romExcHandle,0x200) /* bfc00200: R4000 tlbmiss vector */
RVECENT(romReserved,65)
RVECENT(romReserved,66)
RVECENT(romReserved,67)
RVECENT(romReserved,68)
RVECENT(romReserved,69)
RVECENT(romReserved,70)
RVECENT(romReserved,71)
RVECENT(romReserved,72)
RVECENT(romReserved,73)
RVECENT(romReserved,74)
RVECENT(romReserved,75)
RVECENT(romReserved,76)
RVECENT(romReserved,77)
RVECENT(romReserved,78)
RVECENT(romReserved,79)
XVECENT(romExcHandle,0x280) /* bfc00280: R4000 xtlbmiss vector */
RVECENT(romReserved,81)
RVECENT(romReserved,82)
RVECENT(romReserved,83)
RVECENT(romReserved,84)
RVECENT(romReserved,85)
RVECENT(romReserved,86)
RVECENT(romReserved,87)
RVECENT(romReserved,88)
RVECENT(romReserved,89)
RVECENT(romReserved,90)
RVECENT(romReserved,91)
RVECENT(romReserved,92)
RVECENT(romReserved,93)
RVECENT(romReserved,94)
RVECENT(romReserved,95)
XVECENT(romExcHandle,0x300) /* bfc00300: R4000 cache vector */
RVECENT(romReserved,97)
RVECENT(romReserved,98)
RVECENT(romReserved,99)
RVECENT(romReserved,100)
RVECENT(romReserved,101)
RVECENT(romReserved,102)
RVECENT(romReserved,103)
RVECENT(romReserved,104)
RVECENT(romReserved,105)
RVECENT(romReserved,106)
RVECENT(romReserved,107)
RVECENT(romReserved,108)
RVECENT(romReserved,109)
RVECENT(romReserved,110)
RVECENT(romReserved,111)
XVECENT(romExcHandle,0x380) /* bfc00380: R4000 general vector */
RVECENT(romReserved,113)
RVECENT(romReserved,114)
RVECENT(romReserved,115)
RVECENT(romReserved,116)
RVECENT(romReserved,116)
RVECENT(romReserved,118)
RVECENT(romReserved,119)
RVECENT(romReserved,120)
RVECENT(romReserved,121)
RVECENT(romReserved,122)
RVECENT(romReserved,123)
RVECENT(romReserved,124)
RVECENT(romReserved,125)
RVECENT(romReserved,126)
RVECENT(romReserved,127)
/* We hope there are no more reserved vectors!
* 128 * 8 == 1024 == 0x400
* so this is address R_VEC+0x400 == 0xbfc00400
*/
#ifdef CONFIG_PURPLE
/* 0xbfc00400 */
.word 0xdc870000
.word 0xfca70000
.word 0x20840008
.word 0x20a50008
.word 0x20c6ffff
.word 0x14c0fffa
.word 0x00000000
.word 0x03e00008
.word 0x00000000
.word 0x00000000
/* 0xbfc00428 */
.word 0xdc870000
.word 0xfca70000
.word 0x20840008
.word 0x20a50008
.word 0x20c6ffff
.word 0x14c0fffa
.word 0x00000000
.word 0x03e00008
.word 0x00000000
.word 0x00000000
#endif /* CONFIG_PURPLE */
.align 4
reset:
/* Clear watch registers.
*/
mtc0 zero, CP0_WATCHLO
mtc0 zero, CP0_WATCHHI
/* STATUS register */
mfc0 k0, CP0_STATUS
li k1, ~ST0_IE
and k0, k1
mtc0 k0, CP0_STATUS
/* CAUSE register */
mtc0 zero, CP0_CAUSE
/* Init Timer */
mtc0 zero, CP0_COUNT
mtc0 zero, CP0_COMPARE
/* CONFIG0 register */
li t0, CONF_CM_UNCACHED
mtc0 t0, CP0_CONFIG
#ifdef CONFIG_INCA_IP
/* Disable INCA-IP Watchdog.
*/
bal disable_incaip_wdt
nop
#endif
/* Initialize any external memory.
*/
bal memsetup
nop
/* Initialize caches...
*/
bal mips_cache_reset
nop
/* ... and enable them.
*/
li t0, CONF_CM_CACHABLE_NONCOHERENT
mtc0 t0, CP0_CONFIG
/* Set up temporary stack.
*/
li a0, CFG_INIT_SP_OFFSET
bal mips_cache_lock
nop
li t0, CFG_SDRAM_BASE + CFG_INIT_SP_OFFSET
la sp, 0(t0)
/* Initialize GOT pointer.
*/
bal 1f
nop
.word _GLOBAL_OFFSET_TABLE_ - 1f + 4
1:
move gp, ra
lw t1, 0(ra)
add gp, t1
la t9, board_init_f
j t9
nop
/*
* void relocate_code (addr_sp, gd, addr_moni)
*
* This "function" does not return, instead it continues in RAM
* after relocating the monitor code.
*
* a0 = addr_sp
* a1 = gd
* a2 = destination address
*/
.globl relocate_code
.ent relocate_code
relocate_code:
move sp, a0 /* Set new stack pointer */
/*
* Fix GOT pointer:
*
* New GOT-PTR = (old GOT-PTR - CFG_MONITOR_BASE) + Destination Address
*/
move t6, gp
sub gp, CFG_MONITOR_BASE
add gp, a2 /* gp now adjusted */
sub t6, gp, t6 /* t6 <-- relocation offset */
li t0, CFG_MONITOR_BASE
add t2, t0, CFG_MONITOR_LEN
move t1, a2
/*
* t0 = source address
* t1 = target address
* t2 = source end address
*/
/* On the purple board we copy the code earlier in a special way
* in order to solve flash problems
*/
#ifndef CONFIG_PURPLE
1:
lw t3, 0(t0)
sw t3, 0(t1)
addu t0, 4
ble t0, t2, 1b
addu t1, 4 /* delay slot */
#endif
/* If caches were enabled, we would have to flush them here.
*/
/* Jump to where we've relocated ourselves.
*/
addi t0, a2, in_ram - _start
j t0
nop
.word uboot_end_data
.word uboot_end
.word num_got_entries
in_ram:
/* Now we want to update GOT.
*/
lw t3, -4(t0) /* t3 <-- num_got_entries */
addi t4, gp, 8 /* Skipping first two entries. */
li t2, 2
1:
lw t1, 0(t4)
beqz t1, 2f
add t1, t6
sw t1, 0(t4)
2:
addi t2, 1
blt t2, t3, 1b
addi t4, 4 /* delay slot */
/* Clear BSS.
*/
lw t1, -12(t0) /* t1 <-- uboot_end_data */
lw t2, -8(t0) /* t2 <-- uboot_end */
add t1, t6 /* adjust pointers */
add t2, t6
sub t1, 4
1: addi t1, 4
bltl t1, t2, 1b
sw zero, 0(t1) /* delay slot */
move a0, a1
la t9, board_init_r
j t9
move a1, a2 /* delay slot */
.end relocate_code
/* Exception handlers.
*/
romReserved:
b romReserved
romExcHandle:
b romExcHandle

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#
# (C) Copyright 2003
# Martin Winistoerfer, martinwinistoerfer@gmx.ch.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# File: cpu/mpc5xx/Makefile
#
# Discription: Makefile to build mpc5xx cpu configuration.
# Will include top config.mk which itselfs
# uses the definitions made in cpu/mpc5xx/config.mk
#
include $(TOPDIR)/config.mk
LIB = lib$(CPU).a
START = start.S
OBJS = serial.o cpu.o cpu_init.o interrupts.o traps.o speed.o status_led.o
all: .depend $(START) $(LIB)
$(LIB): $(OBJS)
$(AR) crv $@ $(OBJS)
#########################################################################
.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@
sinclude .depend
#########################################################################

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#
# (C) Copyright 2003
# Martin Winistoerfer, martinwinistoerfer@gmx.ch.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# File: config.mk
#
# Discription: compiler flags and make definitions
#
PLATFORM_RELFLAGS += -mrelocatable -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -ffixed-r29 -mpowerpc -msoft-float

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/*
* (C) Copyright 2003
* Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation,
*/
/*
* File: cpu.c
*
* Discription: Some cpu specific function for watchdog,
* cpu version test, clock setting ...
*
*/
#include <common.h>
#include <watchdog.h>
#include <command.h>
#include <mpc5xx.h>
#if (defined(CONFIG_MPC555))
# define ID_STR "MPC555/556"
/*
* Check version of cpu with Processor Version Register (PVR)
*/
static int check_cpu_version (long clock, uint pvr, uint immr)
{
char buf[32];
/* The highest 16 bits should be 0x0002 for a MPC555/556 */
if ((pvr >> 16) == 0x0002) {
printf (" " ID_STR " Version %x", (pvr >> 16));
printf (" at %s MHz:", strmhz (buf, clock));
} else {
printf ("Not supported cpu version");
return -1;
}
return 0;
}
#endif /* CONFIG_MPC555 */
/*
* Check version of mpc5xx
*/
int checkcpu (void)
{
DECLARE_GLOBAL_DATA_PTR;
ulong clock = gd->cpu_clk;
uint immr = get_immr (0); /* Return full IMMR contents */
uint pvr = get_pvr (); /* Retrieve PVR register */
puts ("CPU: ");
return check_cpu_version (clock, pvr, immr);
}
/*
* Called by macro WATCHDOG_RESET
*/
#if defined(CONFIG_WATCHDOG)
void watchdog_reset (void)
{
int re_enable = disable_interrupts ();
reset_5xx_watchdog ((immap_t *) CFG_IMMR);
if (re_enable)
enable_interrupts ();
}
/*
* Will clear software reset
*/
void reset_5xx_watchdog (volatile immap_t * immr)
{
/* Use the MPC5xx Internal Watchdog */
immr->im_siu_conf.sc_swsr = 0x556c; /* Prevent SW time-out */
immr->im_siu_conf.sc_swsr = 0xaa39;
}
#endif /* CONFIG_WATCHDOG */
/*
* Get timebase clock frequency
*/
unsigned long get_tbclk (void)
{
DECLARE_GLOBAL_DATA_PTR;
volatile immap_t *immr = (volatile immap_t *) CFG_IMMR;
ulong oscclk, factor;
if (immr->im_clkrst.car_sccr & SCCR_TBS) {
return (gd->cpu_clk / 16);
}
factor = (((CFG_PLPRCR) & PLPRCR_MF_MSK) >> PLPRCR_MF_SHIFT) + 1;
oscclk = gd->cpu_clk / factor;
if ((immr->im_clkrst.car_sccr & SCCR_RTSEL) == 0 || factor > 2) {
return (oscclk / 4);
}
return (oscclk / 16);
}
/*
* Reset board
*/
int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
ulong addr;
/* Interrupts off, enable reset */
__asm__ volatile (" mtspr 81, %r0 \n\t
mfmsr %r3 \n\t
rlwinm %r31,%r3,0,25,23\n\t
mtmsr %r31 \n\t");
/*
* Trying to execute the next instruction at a non-existing address
* should cause a machine check, resulting in reset
*/
#ifdef CFG_RESET_ADDRESS
addr = CFG_RESET_ADDRESS;
#else
/*
* note: when CFG_MONITOR_BASE points to a RAM address, CFG_MONITOR_BASE * - sizeof (ulong) is usually a valid address. Better pick an address
* known to be invalid on your system and assign it to CFG_RESET_ADDRESS.
* "(ulong)-1" used to be a good choice for many systems...
*/
addr = CFG_MONITOR_BASE - sizeof (ulong);
#endif
((void (*) (void)) addr) ();
return 1;
}

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/*
* (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation,
*/
/*
* File: cpu_init.c
*
* Discription: Contains initialisation functions to setup
* the cpu properly
*
*/
#include <common.h>
#include <mpc5xx.h>
#include <watchdog.h>
/*
* Setup essential cpu registers to run
*/
void cpu_init_f (volatile immap_t * immr)
{
volatile memctl5xx_t *memctl = &immr->im_memctl;
ulong reg;
/* SYPCR - contains watchdog control. This will enable watchdog */
/* if CONFIG_WATCHDOG is set */
immr->im_siu_conf.sc_sypcr = CFG_SYPCR;
#if defined(CONFIG_WATCHDOG)
reset_5xx_watchdog (immr);
#endif
/* SIUMCR - contains debug pin configuration */
immr->im_siu_conf.sc_siumcr |= CFG_SIUMCR;
/* Initialize timebase. Unlock TBSCRK */
immr->im_sitk.sitk_tbscrk = KAPWR_KEY;
immr->im_sit.sit_tbscr = CFG_TBSCR;
/* Full IMB bus speed */
immr->im_uimb.uimb_umcr = CFG_UMCR;
/* Time base and decrementer will be enables (TBE) */
/* in init_timebase() in time.c called from board_init_f(). */
/* Initialize the PIT. Unlock PISCRK */
immr->im_sitk.sitk_piscrk = KAPWR_KEY;
immr->im_sit.sit_piscr = CFG_PISCR;
/* PLL (CPU clock) settings */
immr->im_clkrstk.cark_plprcrk = KAPWR_KEY;
/* If CFG_PLPRCR (set in the various *_config.h files) tries to
* set the MF field, then just copy CFG_PLPRCR over car_plprcr,
* otherwise OR in CFG_PLPRCR so we do not change the currentMF
* field value.
*/
#if ((CFG_PLPRCR & PLPRCR_MF_MSK) != 0)
reg = CFG_PLPRCR; /* reset control bits */
#else
reg = immr->im_clkrst.car_plprcr;
reg &= PLPRCR_MF_MSK; /* isolate MF field */
reg |= CFG_PLPRCR; /* reset control bits */
#endif
immr->im_clkrst.car_plprcr = reg;
/* System integration timers. CFG_MASK has EBDF configuration */
immr->im_clkrstk.cark_sccrk = KAPWR_KEY;
reg = immr->im_clkrst.car_sccr;
reg &= SCCR_MASK;
reg |= CFG_SCCR;
immr->im_clkrst.car_sccr = reg;
/* Memory Controller */
memctl->memc_br0 = CFG_BR0_PRELIM;
memctl->memc_or0 = CFG_OR0_PRELIM;
#if (defined(CFG_OR1_PRELIM) && defined(CFG_BR1_PRELIM))
memctl->memc_or1 = CFG_OR1_PRELIM;
memctl->memc_br1 = CFG_BR1_PRELIM;
#endif
#if defined(CFG_OR2_PRELIM) && defined(CFG_BR2_PRELIM)
memctl->memc_or2 = CFG_OR2_PRELIM;
memctl->memc_br2 = CFG_BR2_PRELIM;
#endif
#if defined(CFG_OR3_PRELIM) && defined(CFG_BR3_PRELIM)
memctl->memc_or3 = CFG_OR3_PRELIM;
memctl->memc_br3 = CFG_BR3_PRELIM;
#endif
}
/*
* Initialize higher level parts of cpu
*/
int cpu_init_r (void)
{
/* Nothing to do at the moment */
return (0);
}

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/*
* (C) Copyright 2000-2002 Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation,
*/
/*
* File: interrupt.c
*
* Discription: Contains interrupt routines needed by U-Boot
*
*/
#include <common.h>
#include <watchdog.h>
#include <mpc5xx.h>
#include <asm/processor.h>
/************************************************************************/
unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
/************************************************************************/
struct interrupt_action {
interrupt_handler_t *handler;
void *arg;
};
static struct interrupt_action irq_vecs[NR_IRQS];
/*
* Local function prototypes
*/
static __inline__ unsigned long get_msr (void)
{
unsigned long msr;
asm volatile ("mfmsr %0":"=r" (msr):);
return msr;
}
static __inline__ void set_msr (unsigned long msr)
{
asm volatile ("mtmsr %0"::"r" (msr));
}
static __inline__ unsigned long get_dec (void)
{
unsigned long val;
asm volatile ("mfdec %0":"=r" (val):);
return val;
}
static __inline__ void set_dec (unsigned long val)
{
asm volatile ("mtdec %0"::"r" (val));
}
/*
* Enable interrupts
*/
void enable_interrupts (void)
{
set_msr (get_msr () | MSR_EE);
}
/*
* Returns flag if MSR_EE was set before
*/
int disable_interrupts (void)
{
ulong msr = get_msr ();
set_msr (msr & ~MSR_EE);
return ((msr & MSR_EE) != 0);
}
/*
* Initialise interrupts
*/
int interrupt_init (void)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
/* Decrementer used here for status led */
decrementer_count = get_tbclk () / CFG_HZ;
/* Disable all interrupts */
immr->im_siu_conf.sc_simask = 0;
set_dec (decrementer_count);
set_msr (get_msr () | MSR_EE);
return (0);
}
/*
* Handle external interrupts
*/
void external_interrupt (struct pt_regs *regs)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
int irq;
ulong simask, newmask;
ulong vec, v_bit;
/*
* read the SIVEC register and shift the bits down
* to get the irq number
*/
vec = immr->im_siu_conf.sc_sivec;
irq = vec >> 26;
v_bit = 0x80000000UL >> irq;
/*
* Read Interrupt Mask Register and Mask Interrupts
*/
simask = immr->im_siu_conf.sc_simask;
newmask = simask & (~(0xFFFF0000 >> irq));
immr->im_siu_conf.sc_simask = newmask;
if (!(irq & 0x1)) { /* External Interrupt ? */
ulong siel;
/*
* Read Interrupt Edge/Level Register
*/
siel = immr->im_siu_conf.sc_siel;
if (siel & v_bit) { /* edge triggered interrupt ? */
/*
* Rewrite SIPEND Register to clear interrupt
*/
immr->im_siu_conf.sc_sipend = v_bit;
}
}
if (irq_vecs[irq].handler != NULL) {
irq_vecs[irq].handler (irq_vecs[irq].arg);
} else {
printf ("\nBogus External Interrupt IRQ %d Vector %ld\n",
irq, vec);
/* turn off the bogus interrupt to avoid it from now */
simask &= ~v_bit;
}
/*
* Re-Enable old Interrupt Mask
*/
immr->im_siu_conf.sc_simask = simask;
}
/*
* Install and free an interrupt handler
*/
void irq_install_handler (int vec, interrupt_handler_t * handler,
void *arg)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
/* SIU interrupt */
if (irq_vecs[vec].handler != NULL) {
printf ("SIU interrupt %d 0x%x\n",
vec,
(uint) handler);
}
irq_vecs[vec].handler = handler;
irq_vecs[vec].arg = arg;
immr->im_siu_conf.sc_simask |= 1 << (31 - vec);
#if 0
printf ("Install SIU interrupt for vector %d ==> %p\n",
vec, handler);
#endif
}
void irq_free_handler (int vec)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
/* SIU interrupt */
#if 0
printf ("Free CPM interrupt for vector %d\n",
vec);
#endif
immr->im_siu_conf.sc_simask &= ~(1 << (31 - vec));
irq_vecs[vec].handler = NULL;
irq_vecs[vec].arg = NULL;
}
volatile ulong timestamp = 0;
/*
* Timer interrupt - gets called when bit 0 of DEC changes from
* 0. Decrementer is enabled with bit TBE in TBSCR.
*/
void timer_interrupt (struct pt_regs *regs)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
#ifdef CONFIG_STATUS_LED
extern void status_led_tick (ulong);
#endif
#if 0
printf ("*** Timer Interrupt *** ");
#endif
/* Reset Timer Status Bit and Timers Interrupt Status */
immr->im_clkrstk.cark_plprcrk = KAPWR_KEY;
__asm__ ("nop");
immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS | PLPRCR_TMIST;
/* Restore Decrementer Count */
set_dec (decrementer_count);
timestamp++;
#ifdef CONFIG_STATUS_LED
status_led_tick (timestamp);
#endif /* CONFIG_STATUS_LED */
#if defined(CONFIG_WATCHDOG)
/*
* The shortest watchdog period of all boards
* is approx. 1 sec, thus re-trigger watchdog at least
* every 500 ms = CFG_HZ / 2
*/
if ((timestamp % (CFG_HZ / 2)) == 0) {
reset_5xx_watchdog (immr);
}
#endif /* CONFIG_WATCHDOG */
}
/*
* Reset timer
*/
void reset_timer (void)
{
timestamp = 0;
}
/*
* Get Timer
*/
ulong get_timer (ulong base)
{
return (timestamp - base);
}
/*
* Set timer
*/
void set_timer (ulong t)
{
timestamp = t;
}

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/*
* (C) Copyright 2003
* Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation,
*/
/*
* File: serial.c
*
* Discription: Serial interface driver for SCI1 and SCI2.
* Since this code will be called from ROM use
* only non-static local variables.
*
*/
#include <common.h>
#include <watchdog.h>
#include <command.h>
#include <mpc5xx.h>
/*
* Local function prototypes
*/
static int ready_to_send(void);
/*
* Minimal global serial functions needed to use one of the SCI modules.
*/
int serial_init (void)
{
volatile immap_t *immr = (immap_t *)CFG_IMMR;
serial_setbrg();
#if defined(CONFIG_5xx_CONS_SCI1)
/* 10-Bit, 1 start bit, 8 data bit, no parity, 1 stop bit */
immr->im_qsmcm.qsmcm_scc1r1 = SCI_M_10;
immr->im_qsmcm.qsmcm_scc1r1 = SCI_TE | SCI_RE;
#else
immr->im_qsmcm.qsmcm_scc2r1 = SCI_M_10;
immr->im_qsmcm.qsmcm_scc2r1 = SCI_TE | SCI_RE;
#endif
return 0;
}
void serial_putc(const char c)
{
volatile immap_t *immr = (immap_t *)CFG_IMMR;
/* Test for completition */
if(ready_to_send()) {
#if defined(CONFIG_5xx_CONS_SCI1)
immr->im_qsmcm.qsmcm_sc1dr = (short)c;
#else
immr->im_qsmcm.qsmcm_sc2dr = (short)c;
#endif
if(c == '\n') {
if(ready_to_send());
#if defined(CONFIG_5xx_CONS_SCI1)
immr->im_qsmcm.qsmcm_sc1dr = (short)'\r';
#else
immr->im_qsmcm.qsmcm_sc2dr = (short)'\r';
#endif
}
}
}
int serial_getc(void)
{
volatile immap_t *immr = (immap_t *)CFG_IMMR;
volatile short status;
unsigned char tmp;
/* New data ? */
do {
#if defined(CONFIG_5xx_CONS_SCI1)
status = immr->im_qsmcm.qsmcm_sc1sr;
#else
status = immr->im_qsmcm.qsmcm_sc2sr;
#endif
#if defined(CONFIG_WATCHDOG)
reset_5xx_watchdog (immr);
#endif
} while ((status & SCI_RDRF) == 0);
/* Read data */
#if defined(CONFIG_5xx_CONS_SCI1)
tmp = (unsigned char)(immr->im_qsmcm.qsmcm_sc1dr & SCI_SCXDR_MK);
#else
tmp = (unsigned char)( immr->im_qsmcm.qsmcm_sc2dr & SCI_SCXDR_MK);
#endif
return tmp;
}
int serial_tstc()
{
volatile immap_t *immr = (immap_t *)CFG_IMMR;
short status;
/* New data character ? */
#if defined(CONFIG_5xx_CONS_SCI1)
status = immr->im_qsmcm.qsmcm_sc1sr;
#else
status = immr->im_qsmcm.qsmcm_sc2sr;
#endif
return (status & SCI_RDRF);
}
void serial_setbrg (void)
{
DECLARE_GLOBAL_DATA_PTR;
volatile immap_t *immr = (immap_t *)CFG_IMMR;
short scxbr;
/* Set baudrate */
scxbr = (gd->cpu_clk / (32 * gd->baudrate));
#if defined(CONFIG_5xx_CONS_SCI1)
immr->im_qsmcm.qsmcm_scc1r0 = (scxbr & SCI_SCXBR_MK);
#else
immr->im_qsmcm.qsmcm_scc2r0 = (scxbr & SCI_SCXBR_MK);
#endif
}
void serial_puts (const char *s)
{
while (*s) {
serial_putc(*s);
++s;
}
}
int ready_to_send(void)
{
volatile immap_t *immr = (immap_t *)CFG_IMMR;
volatile short status;
do {
#if defined(CONFIG_5xx_CONS_SCI1)
status = immr->im_qsmcm.qsmcm_sc1sr;
#else
status = immr->im_qsmcm.qsmcm_sc2sr;
#endif
#if defined(CONFIG_WATCHDOG)
reset_5xx_watchdog (immr);
#endif
} while ((status & SCI_TDRE) == 0);
return 1;
}

66
cpu/mpc5xx/speed.c Normal file
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@@ -0,0 +1,66 @@
/*
* (C) Copyright 2003
* Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation,
*/
/*
* File: speed.c
*
* Discription: Provides cpu speed calculation
*
*/
#include <common.h>
#include <mpc5xx.h>
#include <asm/processor.h>
/*
* Get cpu and bus clock
*/
int get_clocks (void)
{
DECLARE_GLOBAL_DATA_PTR;
volatile immap_t *immr = (immap_t *) CFG_IMMR;
#ifndef CONFIG_5xx_GCLK_FREQ
uint divf = (immr->im_clkrst.car_plprcr & PLPRCR_DIVF_MSK);
uint mf = ((immr->im_clkrst.car_plprcr & PLPRCR_MF_MSK) >> PLPRCR_MF_SHIFT);
ulong vcoout;
vcoout = (CFG_OSC_CLK / (divf + 1)) * (mf + 1) * 2;
if(immr->im_clkrst.car_plprcr & PLPRCR_CSRC_MSK) {
gd->cpu_clk = vcoout / (2^(((immr->im_clkrst.car_sccr & SCCR_DFNL_MSK) >> SCCR_DFNL_SHIFT) + 1));
} else {
gd->cpu_clk = vcoout / (2^(immr->im_clkrst.car_sccr & SCCR_DFNH_MSK));
}
#else /* CONFIG_5xx_GCLK_FREQ */
gd->bus_clk = CONFIG_5xx_GCLK_FREQ;
#endif /* CONFIG_5xx_GCLK_FREQ */
if ((immr->im_clkrst.car_sccr & SCCR_EBDF11) == 0) {
/* No Bus Divider active */
gd->bus_clk = gd->cpu_clk;
} else {
/* CLKOUT is GCLK / 2 */
gd->bus_clk = gd->cpu_clk / 2;
}
return (0);
}

629
cpu/mpc5xx/start.S Normal file
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/*
* Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
* Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
* Copyright (C) 2000, 2001, 2002 Wolfgang Denk <wd@denx.de>
* Copyright (C) 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* File: start.S
*
* Discription: startup code
*
*/
#include <config.h>
#include <mpc5xx.h>
#include <version.h>
#define CONFIG_5xx 1 /* needed for Linux kernel header files */
#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
#include <ppc_asm.tmpl>
#include <ppc_defs.h>
#include <linux/config.h>
#include <asm/processor.h>
#ifndef CONFIG_IDENT_STRING
#define CONFIG_IDENT_STRING ""
#endif
/* We don't have a MMU.
*/
#undef MSR_KERNEL
#define MSR_KERNEL ( MSR_ME | MSR_RI ) /* Machine Check and Recoverable Interr. */
/*
* Set up GOT: Global Offset Table
*
* Use r14 to access the GOT
*/
START_GOT
GOT_ENTRY(_GOT2_TABLE_)
GOT_ENTRY(_FIXUP_TABLE_)
GOT_ENTRY(_start)
GOT_ENTRY(_start_of_vectors)
GOT_ENTRY(_end_of_vectors)
GOT_ENTRY(transfer_to_handler)
GOT_ENTRY(_end)
GOT_ENTRY(.bss)
END_GOT
/*
* r3 - 1st arg to board_init(): IMMP pointer
* r4 - 2nd arg to board_init(): boot flag
*/
.text
.long 0x27051956 /* U-Boot Magic Number */
.globl version_string
version_string:
.ascii U_BOOT_VERSION
.ascii " (", __DATE__, " - ", __TIME__, ")"
.ascii CONFIG_IDENT_STRING, "\0"
. = EXC_OFF_SYS_RESET
.globl _start
_start:
mfspr r3, 638
li r4, CFG_ISB /* Set ISB bit */
or r3, r3, r4
mtspr 638, r3
li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
b boot_cold
. = EXC_OFF_SYS_RESET + 0x20
.globl _start_warm
_start_warm:
li r21, BOOTFLAG_WARM /* Software reboot */
b boot_warm
boot_cold:
boot_warm:
/* Initialize machine status; enable machine check interrupt */
/*----------------------------------------------------------------------*/
li r3, MSR_KERNEL /* Set ME, RI flags */
mtmsr r3
mtspr SRR1, r3 /* Make SRR1 match MSR */
/* Initialize debug port registers */
/*----------------------------------------------------------------------*/
xor r0, r0, r0 /* Clear R0 */
mtspr LCTRL1, r0 /* Initialize debug port regs */
mtspr LCTRL2, r0
mtspr COUNTA, r0
mtspr COUNTB, r0
/*
* Calculate absolute address in FLASH and jump there
*----------------------------------------------------------------------*/
lis r3, CFG_MONITOR_BASE@h
ori r3, r3, CFG_MONITOR_BASE@l
addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET
mtlr r3
blr
in_flash:
/* Initialize some SPRs that are hard to access from C */
/*----------------------------------------------------------------------*/
lis r3, CFG_IMMR@h /* Pass IMMR as arg1 to C routine */
lis r2, CFG_INIT_SP_ADDR@h
ori r1, r2, CFG_INIT_SP_ADDR@l /* Set up the stack in internal SRAM */
/* Note: R0 is still 0 here */
stwu r0, -4(r1) /* Clear final stack frame so that */
stwu r0, -4(r1) /* stack backtraces terminate cleanly */
/*
* Disable serialized ifetch and show cycles
* (i.e. set processor to normal mode) for maximum
* performance.
*/
li r2, 0x0007
mtspr ICTRL, r2
/* Set up debug mode entry */
lis r2, CFG_DER@h
ori r2, r2, CFG_DER@l
mtspr DER, r2
/* Let the C-code set up the rest */
/* */
/* Be careful to keep code relocatable ! */
/*----------------------------------------------------------------------*/
GET_GOT /* initialize GOT access */
/* r3: IMMR */
bl cpu_init_f /* run low-level CPU init code (from Flash) */
mr r3, r21
/* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (from Flash) */
.globl _start_of_vectors
_start_of_vectors:
/* Machine check */
STD_EXCEPTION(0x200, MachineCheck, MachineCheckException)
/* Data Storage exception. "Never" generated on the 860. */
STD_EXCEPTION(0x300, DataStorage, UnknownException)
/* Instruction Storage exception. "Never" generated on the 860. */
STD_EXCEPTION(0x400, InstStorage, UnknownException)
/* External Interrupt exception. */
STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
/* Alignment exception. */
. = 0x600
Alignment:
EXCEPTION_PROLOG
mfspr r4,DAR
stw r4,_DAR(r21)
mfspr r5,DSISR
stw r5,_DSISR(r21)
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
lwz r6,GOT(transfer_to_handler)
mtlr r6
blrl
.L_Alignment:
.long AlignmentException - _start + EXC_OFF_SYS_RESET
.long int_return - _start + EXC_OFF_SYS_RESET
/* Program check exception */
. = 0x700
ProgramCheck:
EXCEPTION_PROLOG
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
lwz r6,GOT(transfer_to_handler)
mtlr r6
blrl
.L_ProgramCheck:
.long ProgramCheckException - _start + EXC_OFF_SYS_RESET
.long int_return - _start + EXC_OFF_SYS_RESET
/* FPU on MPC5xx available. We will use it later.
*/
STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
/* I guess we could implement decrementer, and may have
* to someday for timekeeping.
*/
STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
. = 0xc00
/*
* r0 - SYSCALL number
* r3-... arguments
*/
SystemCall:
addis r11,r0,0 /* get functions table addr */
ori r11,r11,0 /* Note: this code is patched in trap_init */
addis r12,r0,0 /* get number of functions */
ori r12,r12,0
cmplw 0, r0, r12
bge 1f
rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
add r11,r11,r0
lwz r11,0(r11)
li r20,0xd00-4 /* Get stack pointer */
lwz r12,0(r20)
subi r12,r12,12 /* Adjust stack pointer */
li r0,0xc00+_end_back-SystemCall
cmplw 0, r0, r12 /* Check stack overflow */
bgt 1f
stw r12,0(r20)
mflr r0
stw r0,0(r12)
mfspr r0,SRR0
stw r0,4(r12)
mfspr r0,SRR1
stw r0,8(r12)
li r12,0xc00+_back-SystemCall
mtlr r12
mtspr SRR0,r11
1: SYNC
rfi
_back:
mfmsr r11 /* Disable interrupts */
li r12,0
ori r12,r12,MSR_EE
andc r11,r11,r12
SYNC /* Some chip revs need this... */
mtmsr r11
SYNC
li r12,0xd00-4 /* restore regs */
lwz r12,0(r12)
lwz r11,0(r12)
mtlr r11
lwz r11,4(r12)
mtspr SRR0,r11
lwz r11,8(r12)
mtspr SRR1,r11
addi r12,r12,12 /* Adjust stack pointer */
li r20,0xd00-4
stw r12,0(r20)
SYNC
rfi
_end_back:
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
STD_EXCEPTION(0xf00, Trap_0f, UnknownException)
/* On the MPC8xx, this is a software emulation interrupt. It occurs
* for all unimplemented and illegal instructions.
*/
STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException)
STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException)
STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException)
STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException)
STD_EXCEPTION(0x1400, DataTLBError, UnknownException)
STD_EXCEPTION(0x1500, Reserved5, UnknownException)
STD_EXCEPTION(0x1600, Reserved6, UnknownException)
STD_EXCEPTION(0x1700, Reserved7, UnknownException)
STD_EXCEPTION(0x1800, Reserved8, UnknownException)
STD_EXCEPTION(0x1900, Reserved9, UnknownException)
STD_EXCEPTION(0x1a00, ReservedA, UnknownException)
STD_EXCEPTION(0x1b00, ReservedB, UnknownException)
STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException)
STD_EXCEPTION(0x1d00, InstructionBreakpoint, DebugException)
STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException)
STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException)
.globl _end_of_vectors
_end_of_vectors:
. = 0x2000
/*
* This code finishes saving the registers to the exception frame
* and jumps to the appropriate handler for the exception.
* Register r21 is pointer into trap frame, r1 has new stack pointer.
*/
.globl transfer_to_handler
transfer_to_handler:
stw r22,_NIP(r21)
lis r22,MSR_POW@h
andc r23,r23,r22
stw r23,_MSR(r21)
SAVE_GPR(7, r21)
SAVE_4GPRS(8, r21)
SAVE_8GPRS(12, r21)
SAVE_8GPRS(24, r21)
mflr r23
andi. r24,r23,0x3f00 /* get vector offset */
stw r24,TRAP(r21)
li r22,0
stw r22,RESULT(r21)
mtspr SPRG2,r22 /* r1 is now kernel sp */
lwz r24,0(r23) /* virtual address of handler */
lwz r23,4(r23) /* where to go when done */
mtspr SRR0,r24
mtspr SRR1,r20
mtlr r23
SYNC
rfi /* jump to handler, enable MMU */
int_return:
mfmsr r28 /* Disable interrupts */
li r4,0
ori r4,r4,MSR_EE
andc r28,r28,r4
SYNC /* Some chip revs need this... */
mtmsr r28
SYNC
lwz r2,_CTR(r1)
lwz r0,_LINK(r1)
mtctr r2
mtlr r0
lwz r2,_XER(r1)
lwz r0,_CCR(r1)
mtspr XER,r2
mtcrf 0xFF,r0
REST_10GPRS(3, r1)
REST_10GPRS(13, r1)
REST_8GPRS(23, r1)
REST_GPR(31, r1)
lwz r2,_NIP(r1) /* Restore environment */
lwz r0,_MSR(r1)
mtspr SRR0,r2
mtspr SRR1,r0
lwz r0,GPR0(r1)
lwz r2,GPR2(r1)
lwz r1,GPR1(r1)
SYNC
rfi
/*
* unsigned int get_immr (unsigned int mask)
*
* return (mask ? (IMMR & mask) : IMMR);
*/
.globl get_immr
get_immr:
mr r4,r3 /* save mask */
mfspr r3, IMMR /* IMMR */
cmpwi 0,r4,0 /* mask != 0 ? */
beq 4f
and r3,r3,r4 /* IMMR & mask */
4:
blr
.globl get_pvr
get_pvr:
mfspr r3, PVR
blr
/*------------------------------------------------------------------------------*/
/*
* void relocate_code (addr_sp, gd, addr_moni)
*
* This "function" does not return, instead it continues in RAM
* after relocating the monitor code.
*
* r3 = dest
* r4 = src
* r5 = length in bytes
* r6 = cachelinesize
*/
.globl relocate_code
relocate_code:
mr r1, r3 /* Set new stack pointer in SRAM */
mr r9, r4 /* Save copy of global data pointer in SRAM */
mr r10, r5 /* Save copy of monitor destination Address in SRAM */
mr r3, r5 /* Destination Address */
lis r4, CFG_MONITOR_BASE@h /* Source Address */
ori r4, r4, CFG_MONITOR_BASE@l
lis r5, CFG_MONITOR_LEN@h /* Length in Bytes */
ori r5, r5, CFG_MONITOR_LEN@l
/*
* Fix GOT pointer:
*
* New GOT-PTR = (old GOT-PTR - CFG_MONITOR_BASE) + Destination Address
*
* Offset:
*/
sub r15, r10, r4
/* First our own GOT */
add r14, r14, r15
/* the the one used by the C code */
add r30, r30, r15
/*
* Now relocate code
*/
cmplw cr1,r3,r4
addi r0,r5,3
srwi. r0,r0,2
beq cr1,4f /* In place copy is not necessary */
beq 4f /* Protect against 0 count */
mtctr r0
bge cr1,2f
la r8,-4(r4)
la r7,-4(r3)
1: lwzu r0,4(r8)
stwu r0,4(r7)
bdnz 1b
b 4f
2: slwi r0,r0,2
add r8,r4,r0
add r7,r3,r0
3: lwzu r0,-4(r8)
stwu r0,-4(r7)
bdnz 3b
4: sync
isync
/*
* We are done. Do not return, instead branch to second part of board
* initialization, now running from RAM.
*/
addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
mtlr r0
blr
in_ram:
/*
* Relocation Function, r14 point to got2+0x8000
*
* Adjust got2 pointers, no need to check for 0, this code
* already puts a few entries in the table.
*/
li r0,__got2_entries@sectoff@l
la r3,GOT(_GOT2_TABLE_)
lwz r11,GOT(_GOT2_TABLE_)
mtctr r0
sub r11,r3,r11
addi r3,r3,-4
1: lwzu r0,4(r3)
add r0,r0,r11
stw r0,0(r3)
bdnz 1b
/*
* Now adjust the fixups and the pointers to the fixups
* in case we need to move ourselves again.
*/
2: li r0,__fixup_entries@sectoff@l
lwz r3,GOT(_FIXUP_TABLE_)
cmpwi r0,0
mtctr r0
addi r3,r3,-4
beq 4f
3: lwzu r4,4(r3)
lwzux r0,r4,r11
add r0,r0,r11
stw r10,0(r3)
stw r0,0(r4)
bdnz 3b
4:
clear_bss:
/*
* Now clear BSS segment
*/
lwz r3,GOT(.bss)
lwz r4,GOT(_end)
cmplw 0, r3, r4
beq 6f
li r0, 0
5:
stw r0, 0(r3)
addi r3, r3, 4
cmplw 0, r3, r4
bne 5b
6:
mr r3, r9 /* Global Data pointer */
mr r4, r10 /* Destination Address */
bl board_init_r
/* Problems accessing "end" in C, so do it here */
.globl get_endaddr
get_endaddr:
lwz r3,GOT(_end)
blr
/*
* Copy exception vector code to low memory
*
* r3: dest_addr
* r7: source address, r8: end address, r9: target address
*/
.globl trap_init
trap_init:
lwz r7, GOT(_start)
lwz r8, GOT(_end_of_vectors)
rlwinm r9, r7, 0, 22, 31 /* _start & 0x3FF */
cmplw 0, r7, r8
bgelr /* return if r7>=r8 - just in case */
mflr r4 /* save link register */
1:
lwz r0, 0(r7)
stw r0, 0(r9)
addi r7, r7, 4
addi r9, r9, 4
cmplw 0, r7, r8
bne 1b
/*
* relocate `hdlr' and `int_return' entries
*/
li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
li r8, Alignment - _start + EXC_OFF_SYS_RESET
2:
bl trap_reloc
addi r7, r7, 0x100 /* next exception vector */
cmplw 0, r7, r8
blt 2b
li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
bl trap_reloc
li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
bl trap_reloc
li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
li r8, SystemCall - _start + EXC_OFF_SYS_RESET
3:
bl trap_reloc
addi r7, r7, 0x100 /* next exception vector */
cmplw 0, r7, r8
blt 3b
li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET
li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
4:
bl trap_reloc
addi r7, r7, 0x100 /* next exception vector */
cmplw 0, r7, r8
blt 4b
mtlr r4 /* restore link register */
blr
/*
* Function: relocate entries for one exception vector
*/
trap_reloc:
lwz r0, 0(r7) /* hdlr ... */
add r0, r0, r3 /* ... += dest_addr */
stw r0, 0(r7)
lwz r0, 4(r7) /* int_return ... */
add r0, r0, r3 /* ... += dest_addr */
stw r0, 4(r7)
sync
isync
blr

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