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x86: Save the BIST value on reset

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The built in self test value is available in register eax on start-up. Save
it so that it can be accessed later. Unfortunately we must wait until the
global_data is available before we can do this, so there is a little bit of
shuffling to keep it around.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2014-11-06 13:20:10 -07:00
parent e1ffd81797
commit f67cd51e65
4 changed files with 16 additions and 4 deletions
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3
lib/asm-offsets.c
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@ -31,6 +31,9 @@ int main(void)
#ifdef CONFIG_SYS_MALLOC_F_LEN
DEFINE(GD_MALLOC_BASE, offsetof(struct global_data, malloc_base));
#endif
#ifdef CONFIG_X86
DEFINE(GD_BIST, offsetof(struct global_data, arch.bist));
#endif
#if defined(CONFIG_ARM)