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| author | Bin Meng <bmeng.cn@gmail.com> | 2017-04-21 07:24:39 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2017-05-17 17:11:46 +0800 |
| commit | ba65808e7d0699e053c9892983312a11d4e2a30a (patch) | |
| tree | 128283fa731adc8dcb392eb893826b3275860746 /arch/x86/cpu/cpu.c | |
| parent | 9f1fad1e365f413e4f6f5a608a70be0e6ba95dc8 (diff) | |
| download | u-boot-ba65808e7d0699e053c9892983312a11d4e2a30a.tar.gz | |
x86: fsp: Save stack address to CMOS for next S3 boot
At the end of pre-relocation phase, save the new stack address
to CMOS and use it as the stack on next S3 boot for fsp_init()
continuation function.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/x86/cpu/cpu.c')
| -rw-r--r-- | arch/x86/cpu/cpu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index f686ad49c9..f86eaa9df2 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -278,6 +278,14 @@ int reserve_arch(void) high_table_reserve(); #endif +#if defined(CONFIG_HAVE_ACPI_RESUME) && defined(CONFIG_HAVE_FSP) + /* + * Save stack address to CMOS so that at next S3 boot, + * we can use it as the stack address for fsp_contiue() + */ + fsp_save_s3_stack(); +#endif + return 0; } #endif |