[coreboot-gerrit] Change in coreboot[master]: mb/google/zork: Mark RW_MRC_CACHE as "Preserve"

[Martin Roth (Code Review)]

Martin Roth has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/47776 )

Change subject: mb/google/zork: Mark RW_MRC_CACHE as "Preserve"
......................................................................

mb/google/zork: Mark RW_MRC_CACHE as "Preserve"

AGESA checks to make sure that the firmware version reading the MRC
cache is the same version that wrote it, so it doesn't need to be
erased during a firmware update.

BUG=b:173724014
TEST=Flash firmware to DUT, update firmware, check RW_MRC_CACHE was
not erased
BRANCH=Zork

Signed-off-by: Martin Roth 
Change-Id: Ice3d1d467c25366b7ef678cd6481d043f62644ca
---
M src/mainboard/google/zork/chromeos.fmd
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/76/47776/1

diff --git a/src/mainboard/google/zork/chromeos.fmd b/src/mainboard/google/zork/chromeos.fmd
index 7c2b95b..be43e8a 100644
--- a/src/mainboard/google/zork/chromeos.fmd
+++ b/src/mainboard/google/zork/chromeos.fmd
@@ -1,6 +1,6 @@
 FLASH@0xFF000000 16M {
    SI_BIOS {
-		RW_MRC_CACHE 64K
+		RW_MRC_CACHE(PRESERVE) 64K
    	RW_SECTION_A 3M {
    		VBLOCK_A 8K
    		FW_MAIN_A(CBFS)