diff options
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0101-northbridge-amd-amdmct-mct_ddr3-Force-retraining-on-.patch')
| -rw-r--r-- | resources/libreboot/patch/kgpe-d16/0101-northbridge-amd-amdmct-mct_ddr3-Force-retraining-on-.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0101-northbridge-amd-amdmct-mct_ddr3-Force-retraining-on-.patch b/resources/libreboot/patch/kgpe-d16/0101-northbridge-amd-amdmct-mct_ddr3-Force-retraining-on-.patch new file mode 100644 index 00000000..ef1533d7 --- /dev/null +++ b/resources/libreboot/patch/kgpe-d16/0101-northbridge-amd-amdmct-mct_ddr3-Force-retraining-on-.patch @@ -0,0 +1,36 @@ +From bb67f00d05bf8ff2d9643100878e3743302d43c1 Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Fri, 7 Aug 2015 23:59:33 -0500 +Subject: [PATCH 101/139] northbridge/amd/amdmct/mct_ddr3: Force retraining on + every boot + +Change-Id: I017e0dd5120110124d5b5d5276befef6f7740614 +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 10 ++++++++++ + 1 file changed, 10 insertions(+) + +diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c +index 2ca65ca..330f37f 100644 +--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c ++++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c +@@ -1735,6 +1735,16 @@ restartinit: + allow_config_restore = 0; + } + ++ /* FIXME ++ * Stability issues have arisen on multiple Family 15h systems ++ * when configuration restoration is enabled. In all cases these ++ * stability issues resolved by allowing the RAM to go through a ++ * full training cycle. ++ * ++ * Debug and reenable this! ++ */ ++ allow_config_restore = 0; ++ + for (Node = 0; Node < MAX_NODES_SUPPORTED; Node++) { + struct DCTStatStruc *pDCTstat; + pDCTstat = pDCTstatA + Node; +-- +1.9.1 + |