u-boot.git/arch/arm/cpu/armv7/start.S, branch main

arm: armv7: restore section to .text after saved_args

2025-06-09T15:18:17Z

when CONFIG_BLOBLIST is enabled, the section is switched to .data but is not switched back to .text. It makes all the code below placed in .data section, also breaks CONFIG_POSITION_INDEPENDENT. Fix it by adding `.section .text` to switch the section back to .text. Fixes: 5103e69344d6 ("arm: armv7: save boot arguments") Signed-off-by: Yang Xiwen

spl: Use CONFIG_VAL() to obtain the SPL stack

2025-03-13T16:36:10Z

Now that we have the same option for SPL and TPL, simplify the logic for determining the initial stack. Note that this changes behaviour as current SPL_STACK is a fallback for TPL. However, that was likely unintended and can be handled with Kconfig defaults if needed. Signed-off-by: Simon Glass Reviewed-by: Tom Rini Suggested-by: Tom Rini

spl: Add an SPL_HAVE_INIT_STACK option

2025-03-13T16:36:09Z

At present there is a hex value SPL_STACK which both determines whether SPL has its own initial stack and the hex value of that stack. Split off the former into SPL_HAVE_INIT_STACK with SPL_STACK depending on that and only providing the latter. Signed-off-by: Simon Glass [trini: Resync defconfig files]

arch: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD

2024-10-11T17:44:47Z

Use the new symbol to refer to any 'SPL' build, including TPL and VPL Signed-off-by: Simon Glass

arm: armv7: save boot arguments

2024-02-29T14:24:22Z

Save boot arguments r[0-3] into an array for handover of bloblist from previous boot stage. Signed-off-by: Raymond Mao Suggested-by: Ard Biesheuvel Reviewed-by: Ilias Apalodimas

armv7: Use isb/dsb directly in start.S

2023-04-25T19:31:27Z

Toolchains which do not directly support using "isb" and "dsb" directly are no longer functionally supported in U-Boot. Furthermore, clang has for a long time warned about using the alternate form that we were. Update the code. Signed-off-by: Tom Rini Reviewed-by: Simon Glass

arm: Use the WEAK assembly entry point consistently

2022-12-06T20:30:30Z

It is a bad idea, and more modern toolchains will fail, if you declare an assembly function to be global and then weak, instead of declaring it weak to start with. Update assorted assembly files to use the WEAK macro directly. Signed-off-by: Tom Rini Reviewed-by: Simon Glass Reviewed-by: Pali Rohár

Migrate CUSTOM_SYS_INIT_SP_ADDR to Kconfig using system-constants.h

2022-06-06T16:09:19Z

- Make all users of CUSTOM_SYS_INIT_SP_ADDR reference SYS_INIT_SP_ADDR - Introduce HAS_CUSTOM_SYS_INIT_SP_ADDR to allow for setting the stack pointer directly, otherwise we use the common calculation. - On some platforms that were using the standard calculation but did not set CONFIG_SYS_INIT_RAM_SIZE / CONFIG_SYS_INIT_RAM_ADDR, set them. - On a small number of platforms that were not subtracting GENERATED_GBL_DATA_SIZE do so now via the standard calculation. - CONFIG_SYS_INIT_SP_OFFSET is now widely unused, so remove it from most board config header files. Signed-off-by: Tom Rini

arm: Introduce new CONFIG_SPL_SYS_NO_VECTOR_TABLE option

2022-04-21T10:31:36Z

Move OMAP4 specific option for disabling overwriting vector table into config option CONFIG_SPL_SYS_NO_VECTOR_TABLE. Signed-off-by: Pali Rohár

sunxi: move Cortex SMPEN setting into start.S

2022-02-04T00:09:36Z

According to their TRMs, Cortex ARMv7 CPUs with SMP support require the ACTLR.SMPEN bit to be set as early as possible, before any cache or TLB maintenance operations are done. As we do those things still in start.S, we need to move the SMPEN bit setting there, too. This introduces a new ARMv7 wide symbol and code to set bit 6 in ACTLR very early in start.S, and moves sunxi boards over to use that instead of the custom code we had in our board.c file (where it was called technically too late). In practice we got away with this so far, because at this point all the other cores were still in reset, so any broadcasting would have been ignored anyway. But it is architecturally cleaner to do it early, and we move a core specific piece of code out of board.c. This also gets rid of the ARM_CORTEX_CPU_IS_UP kludge I introduced a few years back, and moves the respective logic into the new Kconfig entry. Signed-off-by: Andre Przywara