New patch to review for coreboot: intel/kunimitsu: FAB 4 update for Rcomp Target table

[Patrick Georgi]

Patrick Georgi ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12591

-gerrit

commit 8eaf6d382e21afde436ec35f380dd036fc0334d0
Author: Brandon Breitenstein 
Date:   Mon Nov 2 16:58:22 2015 -0800

intel/kunimitsu: FAB 4 update for Rcomp Target table

Changed index 3 to be an exception of the default Rcomp Value

BUG=None
    BRANCH=None
    TEST=Tested on FAB 4 SKU 1

Change-Id: I154c254835c4f6995183840cc241feeb9a448cdb
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: f08eba3cf623b5869a7bb03fb3b6ba084cdd1622
    Original-Change-Id: I0fbcff2c3526c4ed7cf90088ca23b43774cb9f8f
    Original-Signed-off-by: Brandon Breitenstein 
    Original-Reviewed-on: https://chromium-review.googlesource.com/312715
    Original-Reviewed-by: Aaron Durbin 
    Original-Reviewed-by: Freddy Paul 
---
 src/mainboard/intel/kunimitsu/pei_data.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/mainboard/intel/kunimitsu/pei_data.c b/src/mainboard/intel/kunimitsu/pei_data.c
index deb488e..3b0237e 100644
--- a/src/mainboard/intel/kunimitsu/pei_data.c
+++ b/src/mainboard/intel/kunimitsu/pei_data.c
@@ -23,6 +23,7 @@
 /* PCH_MEM_CFG[3:0] */
 #define MAX_MEMORY_CONFIG	0x10
 #define RCOMP_TARGET_PARAMS	0x5
+#define K4E6E304EE_MEM_ID	0x3

void mainboard_fill_pei_data(struct pei_data *pei_data)
 {
@@ -41,19 +42,24 @@ void mainboard_fill_pei_data(struct pei_data *pei_data)
    const u16 RcompResistor[3] = { 200, 81, 162 };

/* Rcomp target */
-	static const u16 RcompTarget[MAX_MEMORY_CONFIG][RCOMP_TARGET_PARAMS] = {
-		{ 100, 40, 40, 23, 40 },
-		{ 100, 40, 40, 23, 40 },
-		{ 100, 40, 40, 23, 40 },
-		/*Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EE -EGCF*/
-		{ 100, 40, 40, 21, 40 }, };
+	static const u16 RcompTarget[RCOMP_TARGET_PARAMS] = {
+		100, 40, 40, 23, 40 };
+
+	/*Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EE -EGCF*/
+	static const u16 StrengthendRcompTarget[RCOMP_TARGET_PARAMS] = {
+		100, 40, 40, 21, 40 };

memcpy(pei_data->dq_map, dq_map, sizeof(dq_map));
    memcpy(pei_data->dqs_map, dqs_map, sizeof(dqs_map));
    memcpy(pei_data->RcompResistor, RcompResistor,
    	 sizeof(RcompResistor));
-	memcpy(pei_data->RcompTarget, &RcompTarget[pei_data->mem_cfg_id][0],
-		 sizeof(RcompTarget[pei_data->mem_cfg_id]));
+	if (pei_data->mem_cfg_id == K4E6E304EE_MEM_ID) {
+		memcpy(pei_data->RcompTarget, StrengthendRcompTarget,
+			sizeof(StrengthendRcompTarget));
+	} else {
+		memcpy(pei_data->RcompTarget, RcompTarget,
+		 sizeof(RcompTarget));
+	}

}