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| author | Bin Meng <bmeng.cn@gmail.com> | 2016-05-22 01:45:27 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-05-23 15:18:00 +0800 |
| commit | 5c60a3abde29844f27c227adda1be088ea80e7dd (patch) | |
| tree | a2c8b0d42254718c151dcf9aa9c0379368a0ec7e /arch | |
| parent | 2baf3a5584b5bea0f433d3cc6e217066b88e69ed (diff) | |
| download | talos-obmc-uboot-5c60a3abde29844f27c227adda1be088ea80e7dd.tar.gz talos-obmc-uboot-5c60a3abde29844f27c227adda1be088ea80e7dd.zip | |
x86: Add some notes for MRC cache with Intel FSP
MRC cache relies on Intel FSP to produce a special GUID that
contains the MRC cache data. Add such information in the
CONFIG_ENABLE_MRC_CACHE help entry.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2ba36b790c..65cbb9cc66 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -274,6 +274,13 @@ config ENABLE_MRC_CACHE to be used for speeding up boot time on future reboots and/or power cycles. + For platforms that use Intel FSP for the memory initialization, + please check FSP output HOB via U-Boot command 'fsp hob' to see + if there is FSP_NON_VOLATILE_STORAGE_HOB_GUID (asm/fsp/fsp_hob.h). + If such GUID does not exist, MRC cache is not avaiable on such + platform (eg: Intel Queensbay), which means selecting this option + here does not make any difference. + config HAVE_MRC bool "Add a System Agent binary" depends on !HAVE_FSP |
