haswell: RESET_ON_INVALID_RAMSTAGE_CACHE option
The RESET_ON_INVALID_RAMSTAGE_CACHE option indicates what to do
when the ramstage cache is found to be invalid on a S3 wake. If
selected the system will perform a system reset on S3 wake when the
ramstage cache is invalid. Otherwise it will signal to load the
ramstage from cbfs.
Change-Id: I8f21fcfc7f95fb3377ed2932868aa49a68904803
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2807
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/src/cpu/intel/haswell/Kconfig b/src/cpu/intel/haswell/Kconfig
index b49795d..d1f521d 100644
--- a/src/cpu/intel/haswell/Kconfig
+++ b/src/cpu/intel/haswell/Kconfig
@@ -41,4 +41,16 @@
string
default "src/cpu/intel/haswell"
+config RESET_ON_INVALID_RAMSTAGE_CACHE
+ bool "Reset the system on S3 wake when ramstage cache invalid."
+ default n
+ depends on RELOCATABLE_RAMSTAGE
+ help
+ The haswell romstage code caches the loaded ramstage program
+ in SMM space. On S3 wake the romstage will copy over a fresh
+ ramstage that was cached in the SMM space. This option determines
+ the action to take when the ramstage cache is invalid. If selected
+ the system will reset otherwise the ramstage will be reloaded from
+ cbfs.
+
endif