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| author | Pali Rohár <pali@kernel.org> | 2022-05-06 11:05:13 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2022-05-16 11:31:33 +0200 |
| commit | 948da7773e340fe76d4d1b9c635d724bf8661d30 (patch) | |
| tree | 2ffb6b6d7b8a7efbe6cb1919bfc2a24fdf977e2f | |
| parent | 1001a0ab46ee3be2bb5f0017afdaf135df5e6f6d (diff) | |
| download | u-boot-948da7773e340fe76d4d1b9c635d724bf8661d30.zip u-boot-948da7773e340fe76d4d1b9c635d724bf8661d30.tar.gz u-boot-948da7773e340fe76d4d1b9c635d724bf8661d30.tar.bz2 | |
arm: Add new config option ARCH_VERY_EARLY_INIT
When this option is set then ARM _main() function would call
arch_very_early_init() function at the beginning. It would be before
calling any other functions like debug_uart_init() and also before
initializing C runtime environment.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
| -rw-r--r-- | arch/arm/Kconfig | 6 | ||||
| -rw-r--r-- | arch/arm/lib/crt0.S | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0afec51..9898c7d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -401,6 +401,12 @@ config SYS_ARM_CACHE_WRITEALLOC write is performed. endchoice +config ARCH_VERY_EARLY_INIT + bool + +config SPL_ARCH_VERY_EARLY_INIT + bool + config ARCH_CPU_INIT bool "Enable ARCH_CPU_INIT" help diff --git a/arch/arm/lib/crt0.S b/arch/arm/lib/crt0.S index ba31290..612a2d5 100644 --- a/arch/arm/lib/crt0.S +++ b/arch/arm/lib/crt0.S @@ -90,6 +90,11 @@ clbss_l:cmp r0, r1 /* while not at end of BSS */ ENTRY(_main) +/* Call arch_very_early_init before initializing C runtime environment. */ +#if CONFIG_IS_ENABLED(ARCH_VERY_EARLY_INIT) + bl arch_very_early_init +#endif + /* * Set up initial C runtime environment and call board_init_f(0). */ |