From 34e84b5858484a12d8397fb54551455e59f22b79 Mon Sep 17 00:00:00 2001
From: Subrata Banik <subrata.banik@intel.com>
Date: Tue, 19 Jan 2021 15:38:13 +0530
Subject: mb/intel/adlrvp: Add PRESERVE to UNIFIED_MRC_CACHE

This patch preserves MRC training data across FW update.

Change-Id: I6b7273471e4fc9dc25eac80904e012f86a981836
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49681
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 src/mainboard/intel/adlrvp/chromeos.fmd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/mainboard/intel')

diff --git a/src/mainboard/intel/adlrvp/chromeos.fmd b/src/mainboard/intel/adlrvp/chromeos.fmd
index ee27e2f7cf..e8755ba49e 100644
--- a/src/mainboard/intel/adlrvp/chromeos.fmd
+++ b/src/mainboard/intel/adlrvp/chromeos.fmd
@@ -16,7 +16,7 @@ FLASH@0xfe000000 32M {
 			RW_FWID_B 0x40
 		}
 		RW_MISC 0x30000 {
-			UNIFIED_MRC_CACHE 0x20000 {
+			UNIFIED_MRC_CACHE(PRESERVE) 0x20000 {
 				RECOVERY_MRC_CACHE 0x10000
 				RW_MRC_CACHE 0x10000
 			}
-- 
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