[coreboot-gerrit] Patch set updated for coreboot: amdmct/mct_ddr3: Disable Fam10h-specific MTRR setup on Fam15h

[Timothy Pearson (tpearson@raptorengineeringinc.com)]

Timothy Pearson (tpearson at raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11969

-gerrit

commit 2e646fde7340774f04859ddde63da9165f9baa98
Author: Timothy Pearson <tpearson at raptorengineeringinc.com>
Date:   Mon Jun 1 20:35:42 2015 -0500

    amdmct/mct_ddr3: Disable Fam10h-specific MTRR setup on Fam15h
    
    Change-Id: I5c12b5ef8564402601634e9f3528bbf9303e0b33
    Signed-off-by: Timothy Pearson <tpearson at raptorengineeringinc.com>
---
 src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
index 74066b1..4677c73 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
@@ -1842,11 +1842,13 @@ static void DQSTiming_D(struct MCTStatStruc *pMCTstat,
 
 	if (nv_DQSTrainCTL) {
 		mctHookBeforeAnyTraining(pMCTstat, pDCTstatA);
-		/* TODO: should be in mctHookBeforeAnyTraining */
-		_WRMSR(0x26C, 0x04040404, 0x04040404);
-		_WRMSR(0x26D, 0x04040404, 0x04040404);
-		_WRMSR(0x26E, 0x04040404, 0x04040404);
-		_WRMSR(0x26F, 0x04040404, 0x04040404);
+		if (!is_fam15h()) {
+			/* TODO: should be in mctHookBeforeAnyTraining */
+			_WRMSR(0x26C, 0x04040404, 0x04040404);
+			_WRMSR(0x26D, 0x04040404, 0x04040404);
+			_WRMSR(0x26E, 0x04040404, 0x04040404);
+			_WRMSR(0x26F, 0x04040404, 0x04040404);
+		}
 		mct_WriteLevelization_HW(pMCTstat, pDCTstatA, FirstPass);
 
 		if (is_fam15h()) {