Change in coreboot[master]: mb/google/eve: Do not limit memory speed on new SKU 5 boards

[Duncan Laurie (Code Review)]

Duncan Laurie has uploaded this change for review. ( https://review.coreboot.org/20429

Change subject: mb/google/eve: Do not limit memory speed on new SKU 5 boards
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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 
---
M src/mainboard/google/eve/romstage.c
1 file changed, 2 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/29/20429/1

diff --git a/src/mainboard/google/eve/romstage.c b/src/mainboard/google/eve/romstage.c
index cd8fa08..6f8ff0f 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 @@
    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;
    }