The env variable "SN" is used to store the serial number on DH electronics
SoMs. New SoMs will use the variable "dh_som_serial_number". To ensure
compatibility, these env variables are synchronized. This is achieved
using callback functions.
Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Reviewed-by: Marek Vasut <marex@denx.de>
In case there are two variables which each implement env callback
that performs env_set() on the other variable, the callbacks will
call each other recursively until the stack runs out. Prevent such
a recursion from happening.
Example which triggers this behavior:
static int on_foo(...) { env_set("bar", 0); ... }
static int on_bar(...) { env_set("foo", 0); ... }
U_BOOT_ENV_CALLBACK(foo, on_foo);
U_BOOT_ENV_CALLBACK(bar, on_bar);
Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Suggested-by: Marek Vasut <marex@denx.de>
The new i.MX8M Plus DHCOM rev.200 is populated with M24C32-D EEPROM
that contains an additional write-lockable page called ID page, which
is populated with a structure containing ethernet MAC addresses, DH
item number and DH serial number.
Because the write-lockable page is not present on rev.100 i.MX8MP DHCOM
SoM, test whether EEPROM ID page exists by setting up the i2c driver.
There may be multiple EEPROMs with an ID page on this platform, always
use the first one. The evaluation of the EEPROM ID page is done in two
steps. First, the content is read and checked. This is done to cache
the content of the EEPROM ID page. Second, the content is extracted
from the EEPROM buffer by requesting it.
For the ethernet MAC address the i.MX8M Plus DHCOM currently supports
parsing address from multiple sources in the following priority order:
1) U-Boot environment 'ethaddr'/'eth1addr' environment variable
2) SoC OTP fuses
3) On-SoM EEPROM
Add support for parsing the content of this new EEPROM ID page and place
it between 2) and 3) on the priority list. The new entry is 2.5) On-SoM
EEPROM write-lockable page.
Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Reviewed-by: Marek Vasut <marex@denx.de>
The new i.MX8M Plus DHCOM rev.200 is populated with M24C32-D EEPROM
that contains an additional write-lockable page called ID page. Add
aliases eeprom0wl and eeprom1wl for the access to the EEPROM ID
page node.
Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Reviewed-by: Marek Vasut <marex@denx.de>
iMX91 reuses iMX93 controller and PHY, but with lower speed,
so add new DDR rates for i.MX91.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
i.MX91 is a derived from i.MX93, and most clocks could be reused from
i.MX93. Also Update imx93-clock.h to sync with linux next.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
iMX91 is reduced part from iMX93 with part number: i.MX9131/11/01
It removed A55_1, M33, MIPI DSI, LVDS, etc.
i.MX9131:
- Support 2.4GT/s DDR and HWFFC at 1.2GT/s
i.MX9121:
- A55 at 800Mhz and DDR at 1600MTS, with low drive mode.
i.MX9111:
- Support 1.6GT/s DDR and HWFFC at 800MT/s
i.MX9101:
- Support 800Mhz ARM clock
- Support 1.6GT/s DDR and HWFFC at 800MT/s
- No parallel display, eQOS, flexcan
Updated Clock/Container/CPU and etc for i.MX91
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
According to iMX93 fuse burn plan, all 9x9 parts will have USB2,
ENET1 (FEC), LVDS1, CSI1 and DSI1 disabled. The codes missed ENET1
fuse when detecting 9x9. Although it still can detect 9x9 correctly,
we add the ENET1 fuse to the check to be more accurate.
Fixes: 58da865e27 ("imx9: add i.MX93 variants support")
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Replace '#if DEBUG' with '#ifdef DEBUG', otherwise '#define DEBUG 1'
should be used and conflict with '#define DEBUG' in include/log.h
Fixes: 5fda95fb94 ("imx: imx9: Add TRDC driver for TRDC init")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
have_dual_base is set to false, so the 8ulp_data will be put in BSS
section which conflicts with the area of u-boot.dtb which padded just
after u-boot-nodtb.bin. So move 8ulp_data to data section to avoid
its content being corrupted by dtb.
Fixes: 51cfa66f2c ("gpio: imx_rgpio2p: support one address")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Move the environment into the board directory and convert header to a
txt file. In addition, this patch also applies following changes:
- Change default nfsroot path to /srv/nfs due to compliance with Linux
FHS 3.0.
- Rename specific variables as stated in the bootstd documentation.
Renamed variables:
fdt_addr => fdt_addr_r
fdt_file => fdtfile
Signed-off-by: Yunus Bas <y.bas@phytec.de>
Bryan Brattlof <bb@ti.com> says:
Hello Everyone!
This small series converts TI's AM65x reference board to use
CONFIG_OF_UPSTREAM and removes the unused device tree files from
arch/arm/dts.
Because it's the last board using a AM65x without enabling OF_UPSTREAM
it allows us to also remove all the SoC FDT files as well and keep a
single version of the SoC's DT files in the dts/upstream directory going
forward.
Link: https://lore.kernel.org/r/20241121-am65x-v1-0-fe87aff1b5fc@ti.com
Rather than rely on manual updates from the arch/arm/dts directory,
enable CONFIG_OF_UPSTREAM to receive automatic device tree updates for
the am65x reference board.
Signed-off-by: Bryan Brattlof <bb@ti.com>
Based on the recommendation from HW team make modifications to
the sequence for more robustness.
- Unlock the PLL registers
- Enable external bypass
- Disable the PLL
- Program pllm and pllf
- Program Ref divider
- Enable other PLL controls like DSM_EN, DAC_EN,etc
- Enable calibration if available
- Enable PLL
- Wait for PLL lock and Calibration lock
- Remove external bypass
Re-write the full sequence from scratch as the previous sequence was way
off and keep it in a single commit for bisectability.
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
base is more appropriate for the usage as the variable stores the base
address and seems more accurate w.r.t reg. Change reg to base.
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Updated PLL driver sequencing requires us to use udelay in the PLL
driver as there is no poll bit to get the status of operations.
tick-timer(mcu_timer0/main_timer0) setting up the clocks for itself is
something that won't work as the PLL driver will be using udelay and
PLLs are configured during clock probe which would end up in a recursive
probe.
tick-timer being used by K3 devices are configured by ROM and we really
don't need to configure any of the clocks.
Remove the clock dependency from R5 stage as we don't need to setup
clocks for it.
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Switch the callback static list from the board configuration variable
CFG_ENV_CALLBACK_LIST_STATIC to Kconfig CONFIG_ENV_CALLBACK_LIST_STATIC.
Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Those debug() calls might be useful, but beware. They can cause the DDR
controller to hang if we do not run the sequence quickly enough.
They usually are not an issue with upstream U-Boot and the default DDR
config, but they have become troublesome with custom DDR configs.
Drop those debug() statements that shouldn't be present in
time-sensitive code, to avoid anyone else falling into the trap.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Christian Marangi <ansuelsmth@gmail.com> says:
This series is split in 2 part.
While adapting the LED boot and activity code to the new property
accepted by Rob in dt-schema repository, a big BUG was discovered.
The reason wasn't clear at start and took me some days to figure it
out.
This was triggered by adding a new phandle in the test.dts to
introduce test for the new OPs.
This single addition caused the sandbox CI test to fail in the
dm_test_ofnode_phandle_ot test.
This doesn't make sense as reverting the change made the CI test
to correctly finish. Also moving the uboot node down
after the first phandle (in test.dts the gpio one) also made
the CI test to correctly finish.
A little bit of searching and debugging made me realize the
parse phandle OPs didn't support other.dts at all and they
were still referencing phandle index from test.dts.
(more info in the related commit)
In short the test was broken all along and was working by
pure luck. The first 4 patch address and fix the problem for good.
The other 4 patch expand and address the property change for
LED boot/activity.
Posting in a single series as changes are trivial and just
to speedup review process. (and also because the second
part depends on the first)
All CI tested with azure pipeline.
Link: https://lore.kernel.org/r/20241110115054.2555-1-ansuelsmth@gmail.com
Update test for LED activity and boot to follow new implementation with
property set to the LED node phandle.
Also update a copy-paste error in the function name for the activity
tests and actually enable the test with the DM_TEST macro.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Update LED boot/activity to reference by phandle instead of label and
add to period property the "-ms" suffix.
This is a followup request by dt-schema maintainers that required LED
node to be referenced by a phandle to the node instead of indirectly by
the LED label and for timevalue to have a suffix.
While at it generalize the LED node label parsing since the logic is
common for generic LED bind and LED activity/boot.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Add test for ofnode options phandle helper and add new property in the
sandbox test dts.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Implement ofnode_options phandle helper to get an ofnode from a phandle
option in /options/u-boot.
This helper can be useful since new DT yaml usually require to link a
phandle of a node instead of referencing it by name or other indirect
way.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Expand dm_test_ofnode_phandle(_ot) with new ofnode/tree_parse_phandle() op.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Implement ofnode/tree_parse_phandle() helper as an equivalent of
of_parse_phandle to handle simple single value phandle.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Fix broken dm_test_ofnode_phandle_ot test. They never actually worked
and were passing test by pure luck by having the same phandle index of
test.dts that coincicentally had #gpio-cells in the same index node.
It was sufficient to add a phandle to test.dts to make the test fail.
To correctly test these feature, make use oif the new OPs oftree to
parse phandle.
For consistency with the dm_test_ofnode_phandle, rework the test and
other.dts to use the same property with the other- prefix to every
node.
Also fix dm_test_ofnode_get_by_phandle_ot by making it more robust and
renaming the phandle property to other-phandle.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Implement oftree variant of parse_phandle OPs.
There is currently a very hidden and laten BUG with parse_phandle OPs
that doesn't permit the support of multiple DTS in a system. One usage
example if sandbox with the usage of other.dts
The BUG is only present on live scenario where of_... OPs are used and
it's not present when fdt... OPs are used.
This is caused by an assumption made in __of_parse_phandle_with_args,
with the of_find_node_by_phandle call that pass the first arg as NULL.
This makes of_find_node_by_phandle use the default root node of the
system and doesn't permit the usage of alternative tree. This is correct
for normal system and also for the linux kernel where it's assumed a
single device tree.
It's problematic if other device tree needs to be used.
To fix this, introduce __of_root_parse_phandle_with_args to define a
root device tree for of_find_node_by_phandle.
Introduce all the variant OPs for this and in ofnode, the oftree OPs
following how it's done for other OPs with similar task.
For FDT scenario, ofnode_from_fdtdec_phandle_args is reworked to accept
a new variable, node and noffset_to_ofnode is used instead of
offset_to_ofnode. This is required to support multiple FDB blob to
calculate the correct of_offset of the ofnode.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Aniket Limaye <a-limaye@ti.com> says:
This series adds OPP_LOW spec data in k3_avs driver and enables a config
option to select the OPP_LOW performance point.
J7200 SOC supports OPP_LOW and OPP_NOM as two Operating Performance
Points as per (7.5 Operating Performance Points) section in the
Datasheet [0].
- A72SS/MSMC at 2 GHz/1GHz operation must use OPP_NOM.
- A72SS/MSMC at 1 GHz/500 MHz operation can use OPP_NOM or OPP_LOW
voltage (though OPP_LOW voltage is recommended to reduce power
consumption).
The actual OPP voltage for the device is read from the efuse and
updated in k3_avs_probe().
The default j7200 devicetree and k3_avs driver set OPP_NOM spec
frequency and voltage.
In the board init file, if K3_OPP_LOW config is enabled, Check if
OPP_LOW AVS voltage read from efuse is valid and update frequency (A72
and MSMC) and voltage (VDD_CPU) as per the OPP_LOW spec.
[0]: https://www.ti.com/lit/gpn/dra821u (J7200 Datasheet)
Test logs:
https://gist.github.com/aniket-l/328ad93ed60c2419ed7be9f85e6b6075
- With series applied on master and CONFIG_K3_OPP_LOW enabled in
j7200_evm_r5_defconfig
- Logs shown with and without efuse register programmed for OPP_0
(Errors out if OPP_0 not found, programs OPP_LOW spec if found)
- Voltage update verified using 'i2c md 0x4c 0xe' in u-boot
- Frequency update verified using 'k3conf clock dump' in linux
Link: https://lore.kernel.org/r/20241119003617.1871183-1-a-limaye@ti.com
Define new CONFIG_K3_OPP_LOW under arm/mach-k3/r5/Kconfig and add
default value to j7200_evm_r5_defconfig
Signed-off-by: Reid Tonking <reidt@ti.com>
Signed-off-by: Aniket Limaye <a-limaye@ti.com>
The default j7200 devicetree and k3_avs driver set 2GHz/1GHz frequency
for A72/MSMC clks and the OPP_NOM voltage.
J7200 SOCs may support OPP_LOW Operating Performance Point:
1GHz/500MHz clks for A72/MSMC and OPP_LOW AVS voltage read from efuse.
Hence, add a config check in board_init_f() to select OPP_LOW specs:
- Check if OPP_LOW AVS voltage read from efuse is valid.
- Use the device IDs and clock IDs (TISCI docs [0]) to find the A72 and
MSMC clock frequencies in the devicetree.
- Fixup the clock frequencies in devicetree as per OPP_LOW spec.
k3_avs driver programs the OPP_LOW AVS voltage for VDD_CPU through
k3_avs_notify_freq() callback from clk_k3.
[0]: https://software-dl.ti.com/tisci/esd/latest/5_soc_doc/j7200/clocks.html
Signed-off-by: Aniket Limaye <a-limaye@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
k3_avs driver checks opp_ids when probing and overwrites the voltage
values in vd_data for the respective board. The new k3_avs_check_opp()
can be called from board files to check the efuse data and returns 0 if
valid.
Also add the same check in k3_avs_program_voltage() to error out if
the efuse data was not valid.
Signed-off-by: Reid Tonking <reidt@ti.com>
Signed-off-by: Aniket Limaye <a-limaye@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
J7200 SOC supports OPP_LOW and OPP_NOM as two Operating Performance
Points as per (7.5 Operating Performance Points) section in the
Datasheet [0].
- A72SS/MSMC at 2 GHz/1GHz operation must use OPP_NOM.
- A72SS/MSMC at 1 GHz/500 MHz operation can use OPP_NOM or OPP_LOW
voltage (though OPP_LOW voltage is recommended to reduce power
consumption).
Add OPP_LOW frequency->voltage entry to vd_data.
The actual OPP voltage for the device is read from the efuse and
updated in k3_avs_probe().
OPP_NOM corresponds to OPP_1 and OPP_LOW to OPP_0 efuse register
fields, as described in the Datasheet [0]
The register offsets and fields are described in the TRM (5.2.6.1.5
WKUP_VTM_VD_OPPVID_j Register) [1].
[0]: https://www.ti.com/lit/gpn/dra821u (J7200 Datasheet)
[1]: https://www.ti.com/lit/pdf/spruiu1 (J7200 TRM)
Signed-off-by: Reid Tonking <reidt@ti.com>
Signed-off-by: Aniket Limaye <a-limaye@ti.com>
Enable AVS support on J784S4 along with regulator.
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
Add the VTM node to the R5 boot stage so that AVS is correctly
configured for AM68 SK.
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
Add VTM node to R5 boot stage so that AVS gets correctly configured for
J784S4 EVM and AM69 SK.
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
