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-rw-r--r--resources/libreboot/patch/kgpe-d16/0106-amd-amdmct-mct_ddr3-Set-prefetch-double-stride-to-im.patch25
1 files changed, 25 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0106-amd-amdmct-mct_ddr3-Set-prefetch-double-stride-to-im.patch b/resources/libreboot/patch/kgpe-d16/0106-amd-amdmct-mct_ddr3-Set-prefetch-double-stride-to-im.patch
new file mode 100644
index 0000000..9454823
--- /dev/null
+++ b/resources/libreboot/patch/kgpe-d16/0106-amd-amdmct-mct_ddr3-Set-prefetch-double-stride-to-im.patch
@@ -0,0 +1,25 @@
+From cd93f46100c1141dba544518c552645cc657406a Mon Sep 17 00:00:00 2001
+From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
+Date: Sat, 8 Aug 2015 20:29:55 -0500
+Subject: [PATCH 106/146] amd/amdmct/mct_ddr3: Set prefetch double stride to
+ improve performance
+
+---
+ src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+index 166cd3d..a9c148d 100644
+--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
++++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+@@ -5550,6 +5550,7 @@ static void mct_FinalMCT_D(struct MCTStatStruc *pMCTstat,
+ val &= ~(0x7 << 8); /* CohPrefPrbLmt = 0x1 */
+ val |= (0x1 << 8);
+ val |= (0x1 << 12); /* EnSplitDctLimits = 0x1 */
++ val |= (0x1 << 20); /* DblPrefEn = 0x1 */
+ val |= (0x7 << 22); /* PrefFourConf = 0x7 */
+ val |= (0x7 << 25); /* PrefFiveConf = 0x7 */
+ val &= ~(0xf << 28); /* DcqBwThrotWm = 0x0 */
+--
+1.7.9.5
+