From dea94abebba0868526b2a9dcf9627a7a628ba522 Mon Sep 17 00:00:00 2001
From: Duncan Laurie <dlaurie@chromium.org>
Date: Tue, 20 Jun 2017 20:42:38 -0700
Subject: [PATCH] mb/google/eve: Do not limit memory speed on new SKU 5 boards

Board changes in rev6+ have a fix to VDDQ that should fix the issue
that was being seen with this SKU, so only lower the memory speed on
older boards.

BUG=b:37172778
TEST=memory stress testing on rev6 boards

Change-Id: I6d6fe730cabd74af23eab3f02feef9da01a35fd4
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/20429
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
---
 src/mainboard/google/eve/romstage.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mainboard/google/eve/romstage.c b/src/mainboard/google/eve/romstage.c
index cd8fa083a9..6f8ff0f19c 100644
--- a/src/mainboard/google/eve/romstage.c
+++ b/src/mainboard/google/eve/romstage.c
@@ -14,6 +14,7 @@
  * GNU General Public License for more details.
  */
 
+#include <boardid.h>
 #include <string.h>
 #include <stddef.h>
 #include <fsp/soc_binding.h>
@@ -49,7 +50,7 @@ void mainboard_memory_init_params(FSPM_UPD *mupd)
 	mem_cfg->MemorySpdDataLen = SPD_LEN;
 
 	/* Limit K4EBE304EB-EGCF memory to 1600MHz for stability */
-	if (mainboard_get_spd_index() == 5) {
+	if (board_id() < 6 && mainboard_get_spd_index() == 5) {
 		printk(BIOS_WARNING, "Limiting memory to 1600MHz\n");
 		mem_cfg->DdrFreqLimit = 1600;
 	}