Commit Graph

98719 Commits

Author SHA1 Message Date
Minda Chen
b0e75b4fb0 configs: starfive: Add visionfive2 cadence USB configuration
Add cadence USB confiuration.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Tested-by: E Shattow <lucent@gmail.com>
2025-03-17 01:55:19 +01:00
Minda Chen
05aa34cef9 spl: starfive: visionfive2: Disable USB overcurrent pin by default.
For some JH7110 boards, USB host overcurent pin is not reserved,
To make USB host work, overcurrent pin must be disabled. So set the
pin default disabled in spl stage.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Tested-by: E Shattow <lucent@gmail.com>
2025-03-17 01:55:19 +01:00
Minda Chen
d0f8a9511e usb: cdns: starfive: Add cdns USB driver
Add Starfive cdns USB3 wrapper driver.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Tested-by: E Shattow <lucent@gmail.com>
2025-03-17 01:55:19 +01:00
Minda Chen
af65cc3ebf usb: cdns: starfive: Get dr mode from wrapper device dts node
Cdns core driver also get dr mode from wrapper devcie dts node
to make it is same with Starfive cdns USB Linux kernel driver,
Starfive 7110 OF_UPSTREAM is enabled

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2025-03-17 01:55:19 +01:00
Minda Chen
0cbecd6954 phy: starfive: Add Starfive JH7110 PCIe 2.0 PHY driver
Add Starfive JH7110 PCIe 2.0 PHY driver, which is generic
PHY driver and can be used as USB 3.0 driver.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Tested-by: E Shattow <lucent@gmail.com>
2025-03-17 01:55:19 +01:00
Minda Chen
20281cc309 phy: starfive: Add Starfive JH7110 USB 2.0 PHY driver
Add Starfive JH7110 USB 2.0 PHY driver, which is generic
PHY driver.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Tested-by: E Shattow <lucent@gmail.com>
2025-03-17 01:55:18 +01:00
Minda Chen
d8e3945935 usb: cdns3: Set USB PHY mode in cdns3_drd_update_mode()
USB PHY maybe need to set PHY mode in different USB
dr mode. So translate USB PHY mode to generic PHY mode
and call generic_phy_set_mode().

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2025-03-17 01:55:18 +01:00
Marek Vasut
885fd621a3 ram: renesas: dbsc5: Make struct renesas_dbsc5_board_config public
Make struct renesas_dbsc5_board_config {} definition public via
include/dbsc5.h, so this structure can be defined in board files
and passed into the DBSC5 DRAM driver by overriding weak function
dbsc5_get_board_data() on board level.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:16 +01:00
Marek Vasut
74e2811361 ram: renesas: dbsc5: Add V4H-3/V4H-5/V4H-7 OTP based detection
Add auto-detection and handling of Renesas R-Car V4H-3 and V4H-5
in addition to V4H-7 SoC variants based on OTP fuse programming.
The V4H-3 and V4H-5 variants have reduced DRAM frequency options.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:16 +01:00
Marek Vasut
9ae94d2aed ram: renesas: dbsc5: Synchronize initialization code to rev.1.10
Update the DRAM initialization code to match DBSC5 initialization code
rev.1.10 , which is currently the latest version available. This makes
DRAM initialization operational on Renesas R-Car V4H R8A779G0 rev.3.0.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:16 +01:00
Marek Vasut
da7662f6bb ram: renesas: dbsc5: Fix DBTR11 calculation
Reinstate missing increment by two in DBTR11 calculation based
on the original DBSC5 initialization code rev.0.80. The original
code did ... ODTLon - (js2[JS2_tODTon_min] - 1) + 1 , which was
incorrectly converted into ODTLon - js2[JS2_tODTon_min], but
should have been converted to ODTLon - js2[JS2_tODTon_min] + 2.
Add the missing +2 .

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:16 +01:00
Marek Vasut
9a106f15fa ram: renesas: dbsc5: Fix JS1 index calculation
The JS1 index is calculated correctly, but the limiter cannot
be the max() function because the index should be lower than
JS1_USABLEC_SPEC_HI and the max() function would unconditionally
override the JS1 index to JS1_USABLEC_SPEC_HI. Use clamp() to
limit the JS1 index instead.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:16 +01:00
Marek Vasut
6c219e184f ram: renesas: dbsc5: Fix bitrate MD pin parsing
Fix copy paste error in MD pin handling for 5500 Mbps and 4800 Mbps case,
each should be handled by MD[19,17] == 2 and MD[19,17] == 3 respectively.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:16 +01:00
Marek Vasut
15111aeb9c arm64: dts: renesas: Make OTP available in SPL on R8A779G0 V4H
The DBSC5 DRAM controller driver needs access to OTP fuses to discern
Renesas R-Car V4H-3, V4H-5 and V4H-7 SoC variants based on OTP fuse
programming. Make OTP block DT node available in U-Boot SPL DT so the
DBSC5 driver can determine its base address and read out the OTP fuses.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:16 +01:00
Marek Vasut
92659829aa arm64: renesas: Drop stale R-Car V4H SPL implementation description
The R-Car V4H SPL implementation was originally running on the Cortex-R52
core, but this is no longer the case. Majority of the SPL now runs on the
Cortex-A76 core. Drop the stale description.

Fixes: ec53fdee5b ("arm64: renesas: Add Renesas R-Car V4H SPL implementation")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:56:00 +01:00
Marek Vasut
56490b1e01 ARM: renesas: Drop stale common Makefile description
Remove stale Makefile description, this used to be valid for the
original Makefile from which the common Makefile was made generic,
but is no longer applicable to the common Makefile.

Fixes: c7d2d7f90a ("ARM: renesas: Simplify board Makefiles")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:55:42 +01:00
Marek Vasut
9292a30471 arm64: renesas: Enable fallback PSCI on Renesas R-Car R8A779G0 V4H White Hawk
Enable fallback PSCI provider on Renesas R-Car R8A779G0 V4H White Hawk board.

This fallback PSCI provider provides basic PSCI interface which can be used
by the Linux kernel, but does not provide support for bringing up additional
CPU cores or any other functionality, except for SoC level reset.

This fallback PSCI provider is intended as a fallback in case a proper PSCI
provider is not started before the Linux kernel is started. Linux kernel on
ARMv8a will fail to boot in case a PSCI provider is not available, and this
basic fallback PSCI provider assures such a boot failure cannot occur, even
if that means the system will boot in degraded mode with only one CPU core
available, that is still sufficient to perform recovery.

In the common case, a proper PSCI provider should be started as part of
the Linux kernel fitImage, as the BL31 loadable, and replace this basic
fallback PSCI provider before the Linux kernel is started.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:47:28 +01:00
Marek Vasut
7ddb8d999a arm64: renesas: Add TFA BL31 handoff support on Renesas R-Car Gen4
Implement custom U_BOOT_FIT_LOADABLE_HANDLER and armv8_switch_to_el2_prep()
handling in case the TFA was loaded. The loadables handler sets up custom
handoff structure used by Renesas TFA fork in fixed location in DRAM and
indicates the TFA has been loaded.

The custom armv8_switch_to_el2_prep() handling tests whether the TFA BL31
was previously loaded and the custom handoff structure was set up, and if
so, jumps to TFA BL31 which switches from EL3 to EL2 and then returns to
U-Boot just past bl in armv8_switch_to_el2() to finish starting the Linux
kernel.

The jump to Linux through TFA works in such a way that the custom
armv8_switch_to_el2_prep() handler configures the custom handoff structure
such that the target jump address of the TFA BL31 on exit is set to the
armv8_switch_to_el2() + 4, which is just past the bl, and just before the
U-Boot code which implements the Linux kernel boot from either EL. The
registers passed through the TFA BL31 are all the registers passed into
armv8_switch_to_el2_prep() to assure maximum compatibility with all the
boot modes. The armv8_switch_to_el2_prep() handler jumps to the TFA BL31,
which does its setup, drops EL from EL3 to EL2 and finally jumps to the
armv8_switch_to_el2() + 4 entry point, which then allows U-Boot to boot
the Linux kernel the usual way.

In order to build suitable kernel fitImage, build TFA first, upstream
is currently under review:
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/35799
Or if necessary, downstream repository:
remote: https://github.com/renesas-rcar/arm-trusted-firmware.git
branch: rcar_gen4_v2.7_v4x

```
$ git clean -fqdx
$ MBEDTLS_DIR=/path/to/mbedtls/ make -j$(nproc) bl31 \
	PLAT=rcar_gen4 ARCH=aarch64 LSI=V4H SPD=none \
	CTX_INCLUDE_AARCH32_REGS=0 MBEDTLS_COMMON_MK=1 \
	PTP_NONSECURE_ACCESS=1 LOG_LEVEL=20 DEBUG=0 \
	ENABLE_ASSERTIONS=0 E=0
```

Build Linux kernel Image and device tree from current mainline Linux
kernel repository, obtain 'Image' and 'r8a779g0-white-hawk.dtb' .

Bundle the files together using provided fit-image.its fitImage description:
```
$ mkimage -f fit-image.its fitImage
```

To start the kernel fiImage generated in previous step, load fitImage
to DRAM and use the 'bootm' command to start it:
=> load 0x58000000 ... fitImage && bootm 0x58000000

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-03-16 14:47:28 +01:00
Arseniy Krasnov
448d27f6ad mtd: rawnand: meson: always use OOB bytes during write
If 'oob_required' is not set by the caller (for example 'oobbuf' is NULL),
then driver doesn't copy OOB data from 'oob_poi' to special controller
structures, so zeroes will be written as OOB. But, generic raw NAND logic
in 'nand_base.c' already handles case when OOB is not required to write by
filling 'oob_poi' with 0xFF's. So let's remove 'oob_required' check to
always read 'oob_poi' data for OOB.

Kernel driver (drivers/mtd/nand/raw/meson_nand.c) works in the same way,
so need to keep same behaviour here.

Fixes: c2e8c4d09a ("mtd: rawnand: Meson NAND controller support")
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
2025-03-16 14:02:05 +01:00
Tom Rini
0e1fc465fe Merge tag 'dm-pull-15mar25' of git://git.denx.de/u-boot-dm into next
Sync up on test renames
2025-03-15 08:19:31 -06:00
Simon Glass
13e8d14442 test: Make net tests depend on CONFIG_CMD_NET
This fails on samus_tpl as there is no 'net' command.

   => net list
   Unknown command 'net' - try 'help' !

Fix it by adding a condition for the test.

Add a blank line to keep pylint happy.

Signed-off-by: Simon Glass <sjg@chromium.org>
2025-03-15 11:47:05 +00:00
Simon Glass
0043428777 test/py: Show info about module-loading
It is sometimes tricky to figure out what modules test.py is loading
when it starts up. The result can be a silent failure with no clue as to
what when wrong.

Add a section which lists the modules loaded as well as those not
found.

Signed-off-by: Simon Glass <sjg@chromium.org>
2025-03-15 11:47:05 +00:00
Simon Glass
d08653d369 test/py: Drop assigning ubman to cons
Now that we have a shorter name, we don't need this sort of thing. Just
use ubman instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
2025-03-15 11:47:04 +00:00
Simon Glass
dd693ecb60 test/py: Drop importing utils as util
Now that we have a shorter name, we don't need this sort of thing.
Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # test_android
2025-03-15 11:02:04 +00:00
Simon Glass
d9ed4b75ad test/py: Drop u_boot_ prefix on test files
We know this is U-Boot so the prefix serves no purpose other than to
make things longer and harder to read. Drop it and rename the files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # test_android / test_dfu
2025-03-15 11:02:04 +00:00
Simon Glass
752c376987 test/py: Shorten u_boot_console
This fixture name is quite long and results in lots of verbose code.
We know this is U-Boot so the 'u_boot_' part is not necessary.

But it is also a bit of a misnomer, since it provides access to all the
information available to tests. It is not just the console.

It would be too confusing to use con as it would be confused with
config and it is probably too short.

So shorten it to 'ubman'.

Signed-off-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/u-boot/CAFLszTgPa4aT_J9h9pqeTtLCVn4x2JvLWRcWRD8NaN3uoSAtyA@mail.gmail.com/
2025-03-15 10:38:38 +00:00
Dinesh Maniyam
e8741c9339 configs: nand2_defconfig: Enable configs for nand boot
Enable configs for nand boot.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
0375a1f145 drivers: mtd: nand: Kconfig: Add SYS_NAND_PAGE_SIZE dependency
Add SYS_NAND_PAGE_SIZE dependency for cadence NAND.
This config is needed as the SPL driver will use this parameter
to read uboot-proper image in NAND during booting.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
10b800a69d drivers: mtd: nand: Enabled Kconfig and Makefile for Cadence-SPL
Enable the Kconfig and Makefile for the Cadence-Nand
SPL support in agilex5 family device.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
8855146b4d drivers: mtd: nand: spl: Add support for nand SPL load image
Add support for spl nand to load binary image from NAND
to RAM. Leverage the existing nand_spl_load_image from nand_spl_loaders.c

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
597fe4098d drivers: mtd: nand: base: Add support for Hardware ECC for check bad block
Leverage linux code to support hardware ECC interface
to verify nand bad block.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
7ed5c15a83 drivers: nand: Enabled Kconfig and Makefile for cdns-nand
Enable the Kconfig and Makefile for the
Cadence NAND driver for the agilex5 family device.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
2b2745b189 drivers: mtd: nand: cadence: Use bounce buffer
Enable nand to use bounce buffer. In bounce buffer,
read/write buf will use cadence->buf which has been allocated
using malloc. This will align the memory and avoid memory to be
allocated in different addresses.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
880c317230 drivers: mtd: nand: cadence: Poll for desc complete status
Poll for thread complete status to ensure the
descriptor processing is complete. If complete then can ensure
controller already update the descriptor status.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
b820fa9577 drivers: mtd: nand: cadence: Flush & invalidate dma descriptor
Ensure ddr memory is updated with the data from dcache.
This would help to ensure cdma always reading the latest dma descriptor
from ddr memory.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
36b2a5d676 drivers: mtd: nand: cadence: Support cmd SET_FEATURES & GET_FEATURES
Support NAND_CMD_SET_FEATURES & NAND_CMD_GET_FEATURES.
These commands is one of the basic commands of NAND. The parameters get
from these commands will be used to set timing mode
of NAND data interface.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
dfba71f965 drivers: mtd: nand: cadence: Add support for NAND_CMD_RESET
Support nand reset command for Cadence Nand Driver.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:01 +01:00
Dinesh Maniyam
5045ab8bd3 drivers: mtd: nand: cadence: Add support for NAND_CMD_PARAM
Add support for reading param page of NAND device.
These paramaters are unique and used for identification purpose.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:00 +01:00
Dinesh Maniyam
1d23aca355 drivers: mtd: nand: cadence: Add support for readid command
Add support for readid command in Cadence NAND driver.
The id is unique and used for flash identification.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:00 +01:00
Dinesh Maniyam
ac682c4da9 drivers: mtd: nand: cadence: Add support for read status command
Add support for read status command
in Cadence NAND driver. This status bit is important to check
whether the flash is write-protected.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:00 +01:00
Dinesh Maniyam
ebc41cadc6 drivers: mtd: nand: Add driver for Cadence Nand
Enable driver for Cadence NAND for the family
device agilex5. This driver is leveraged from the path
/drivers/mtd/nand/raw/cadence-nand-controller.c from the
stable version 6.11.2.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:00 +01:00
Dinesh Maniyam
efb9cae1f1 arm: dts: agilex5: Enabled cdns-nand dts setting
Enable cdns-nand dts setting for the socfpga_agilex5
family device.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:00 +01:00
Dinesh Maniyam
1ae1e9c55e dt: nand: add cadence nand dt-bindings
The Cadence NAND is a configurable mtd raw block which
supports multiple options for chipsets, clocking and reset structure, and
feature list.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
2025-03-15 10:35:00 +01:00
Tom Rini
00dfb7038e Merge patch series "Enable USB MSC Boot for AM62, AM62A and AM62P"
Siddharth Vadapalli <s-vadapalli@ti.com> says:

This series adds config fragment for enabling USB MSC boot and USB
Storage devices which are applicable to AM62, AM62A and AM62P SoCs.

Series has been tested on AM62A7-SK, AM625-SK and AM62P5-SK for USB MSC
boot where the bootloaders were generated in the following manner:
1. AM62A7-SK (AM62A SoC):
- tiboot3.bin
	=> am62ax_evm_r5_defconfig + am62x_r5_usbmsc.config
- tispl.bin and u-boot.img
	=> am62ax_evm_a53_defconfig + am62x_a53_usbmsc.config
2. AM625-SK (AM62 SoC):
- tiboot3.bin
	=> am62x_evm_r5_defconfig + am62x_r5_usbmsc.config
- tispl.bin and u-boot.img
	=> am62x_evm_a53_defconfig + am62x_a53_usbmsc.config
3. AM62P5-SK (AM62P SoC):
- tiboot3.bin
	=> am62px_evm_r5_defconfig + am62x_r5_usbmsc.config
- tispl.bin and u-boot.img
	=> am62px_evm_a53_defconfig + am62x_a53_usbmsc.config

The images were flashed to a USB Flash Drive and were connected to the
Type-C interface on each of the boards which supports USB MSC Boot.

Logs corresponding to this series:
1. AM62A7-SK:
https://gist.github.com/Siddharth-Vadapalli-at-TI/3518cba3edc57bf52d06a7df932928ca
2. AM625-SK:
https://gist.github.com/Siddharth-Vadapalli-at-TI/098568be7b482436d27fdc8adae15ce4
3. AM62P5-SK:
https://gist.github.com/Siddharth-Vadapalli-at-TI/50e29073033668e7d904a785bfbc9c0b

The following device-tree changes were made across all of the boards:
https://gist.github.com/Siddharth-Vadapalli-at-TI/2afb913838c1d4005bc059910c09ab4b

Link: https://lore.kernel.org/r/20250301080049.965438-1-s-vadapalli@ti.com
2025-03-14 14:36:18 -06:00
Siddharth Vadapalli
45306e894b configs: am62x_a53: introduce fragment for USB MSC boot
Introduce the config fragment for enabling USB MSC boot. USB MSC boot
involves fetching the next stage of the bootloader from a USB Mass Storage
device such as a USB Flash Drive with the USB controller on the SoC acting
as the USB Host.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
2025-03-14 14:36:18 -06:00
Siddharth Vadapalli
460581fa78 configs: am62x_r5: introduce fragment for USB MSC boot
Introduce the config fragment for enabling USB MSC boot. USB MSC boot
involves fetching the next stage of the bootloader from a USB Mass Storage
device such as a USB Flash Drive with the USB controller on the SoC acting
as the USB Host.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
2025-03-14 14:36:18 -06:00
Dragan Simic
f853295a6a common: console: Delete obsolete VIDCONSOLE_AS_{LCD, NAME} options
The configuration options CONFIG_VIDCONSOLE_AS_LCD and CONFIG_VIDCONSOLE_AS_
NAME have been marked as obsolete and scheduled for deletion in late 2020.

That's already long overdue and the last remaining consumers of these options
have already migrated to using "vidconsole" in their "stdout" and "stderr"
environment variables, so let's delete these two configuration options.

Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Acked-by: Soeren Moch <smoch@web.de> # tbs2910
2025-03-14 14:35:56 -06:00
Jim Liu
ef254ccf37 arm: dts: npcm7xx: correct the timer node
Correct the timer node of dts

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
2025-03-14 12:26:55 -06:00
Tom Rini
973c366ce6 Merge tag 'mmu-next-14032025' of https://source.denx.de/u-boot/custodians/u-boot-tpm into next
Up to now we configure the entire memory space for U-Boot as RWX.
For modern architectures and security requirements, it's better to
map the memory properly.
This pull request adds basics support for mapping the U-Boot binary with
proper (RO, RW, RW^X) memory permissions on aarch64 right after we
relocate U-Boot in the top of DRAM.
It's worrth noting that the linker script annotations are only added for
the aarch64 architecture. We can, in the future, try to unify the linker --
at least for the architectures that have enough in common and expand this
2025-03-14 09:31:36 -06:00
Ilias Apalodimas
fb553201b6 arm64: Enable RW, RX and RO mappings for the relocated binary
Now that we have everything in place switch the page permissions for
.rodata, .text and .data just after we relocate everything in top of the
RAM.

Unfortunately we can't enable this by default, since we have examples of
U-Boot crashing due to invalid access. This usually happens because code
defines const variables that it later writes. So hide it behind a Kconfig
option until we sort it out.

It's worth noting that EFI runtime services are not covered by this
patch on purpose. Since the OS can call SetVirtualAddressMap which can
relocate runtime services, we need to set them to RX initially but remap
them as RWX right before ExitBootServices.

Link: https://lore.kernel.org/u-boot/20250129-rockchip-pinctrl-const-v1-0-450ccdadfa7e@cherry.de/
Link: https://lore.kernel.org/u-boot/20250130133646.2177194-1-andre.przywara@arm.com/
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2025-03-14 13:37:54 +02:00