[coreboot-gerrit] Change in coreboot[master]: nb/intel/sandybridge: Use 133 MHz ref clock for DDR3-2400

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/45503 )

Change subject: nb/intel/sandybridge: Use 133 MHz ref clock for DDR3-2400
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nb/intel/sandybridge: Use 133 MHz ref clock for DDR3-2400

The 100 MHz reference clock seems to be unstable when using high
multipliers. Use the 133 MHz reference clock instead.

Change-Id: I400e4f91776306d54d818fa249d7a845020ac37b
Signed-off-by: Angel Pons 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45503
Reviewed-by: Patrick Rudolph 
Tested-by: build bot (Jenkins) 
---
M src/northbridge/intel/sandybridge/raminit_native.c
1 file changed, 1 insertion(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Patrick Rudolph: Looks good to me, approved

diff --git a/src/northbridge/intel/sandybridge/raminit_native.c b/src/northbridge/intel/sandybridge/raminit_native.c
index 4c1fb8f..698db51 100644
--- a/src/northbridge/intel/sandybridge/raminit_native.c
+++ b/src/northbridge/intel/sandybridge/raminit_native.c
@@ -218,7 +218,7 @@
 {
    if (ctrl->tCK <= TCK_1200MHZ) {
    	ctrl->tCK = TCK_1200MHZ;
-		ctrl->base_freq = 100;
+		ctrl->base_freq = 133;
    } else if (ctrl->tCK <= TCK_1100MHZ) {
    	ctrl->tCK = TCK_1100MHZ;
    	ctrl->base_freq = 100;