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| author | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2016-09-05 06:36:10 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-10-06 20:57:36 -0400 |
| commit | 22a402f00c9de841026105baa219a03d2273c01c (patch) | |
| tree | 431c4126916c684e00901051e3bc45d467f6e5cc | |
| parent | 24307d6337e69c277e8f70ae9af97ef331dc39c5 (diff) | |
| download | u-boot-imx-22a402f00c9de841026105baa219a03d2273c01c.zip u-boot-imx-22a402f00c9de841026105baa219a03d2273c01c.tar.gz u-boot-imx-22a402f00c9de841026105baa219a03d2273c01c.tar.bz2 | |
ARM: Respect CONFIG_SPL_STACK define in lowlevel_init.S
The SPL and U-Boot proper may use different initial stack
locations, which are configured via CONFIG_SPL_STACK and
CONFIG_SYS_INIT_SP_ADDR defines. The lowlevel_init.S
code needs to handle this in the same way as crt0.S
Without this fix, setting the U-Boot stack location to some
place, which is not safely accessible by the SPL (such as
the DRAM), causes a very early SPL deadlock.
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | arch/arm/cpu/armv7/lowlevel_init.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/lowlevel_init.S b/arch/arm/cpu/armv7/lowlevel_init.S index 1872c57..658934d 100644 --- a/arch/arm/cpu/armv7/lowlevel_init.S +++ b/arch/arm/cpu/armv7/lowlevel_init.S @@ -19,7 +19,11 @@ ENTRY(lowlevel_init) /* * Setup a temporary stack. Global data is not available yet. */ +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK) + ldr sp, =CONFIG_SPL_STACK +#else ldr sp, =CONFIG_SYS_INIT_SP_ADDR +#endif bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ #ifdef CONFIG_SPL_DM mov r9, #0 |