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Diffstat (limited to 'resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0016-nb-amd-mct_ddr3-Fix-RDIMM-training-failure-on-Fam15h.patch')
-rw-r--r-- | resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0016-nb-amd-mct_ddr3-Fix-RDIMM-training-failure-on-Fam15h.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0016-nb-amd-mct_ddr3-Fix-RDIMM-training-failure-on-Fam15h.patch b/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0016-nb-amd-mct_ddr3-Fix-RDIMM-training-failure-on-Fam15h.patch new file mode 100644 index 0000000..ab731ac --- /dev/null +++ b/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0016-nb-amd-mct_ddr3-Fix-RDIMM-training-failure-on-Fam15h.patch @@ -0,0 +1,32 @@ +From 2888ba1b3ac0056183b05a37e6f24018a00339fa Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Tue, 24 Nov 2015 14:11:52 -0600 +Subject: [PATCH 16/45] nb/amd/mct_ddr3: Fix RDIMM training failure on Fam15h + +Certain registered DIMMs failed training due to an error +likely introduced during historical rebase. Ensure that +the SubMemclkRegDly bit is set according to BKDG +recommendations on Family 15 processors. + +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/northbridge/amd/amdmct/mct_ddr3/mctproc.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctproc.c b/src/northbridge/amd/amdmct/mct_ddr3/mctproc.c +index cf13b40..fc62afb 100644 +--- a/src/northbridge/amd/amdmct/mct_ddr3/mctproc.c ++++ b/src/northbridge/amd/amdmct/mct_ddr3/mctproc.c +@@ -66,6 +66,9 @@ u32 mct_SetDramConfigMisc2(struct DCTStatStruc *pDCTstat, + misc2 |= ((cs_mux_67 & 0x1) << 27); + misc2 &= ~(0x1 << 26); /* CsMux45 = cs_mux_45 */ + misc2 |= ((cs_mux_45 & 0x1) << 26); ++ ++ if (pDCTstat->Status & (1 << SB_Registered)) ++ misc2 |= 1 << SubMemclkRegDly; + } else if (pDCTstat->LogicalCPUID & (AMD_DR_Dx | AMD_DR_Cx)) { + if (pDCTstat->Status & (1 << SB_Registered)) { + misc2 |= 1 << SubMemclkRegDly; +-- +2.1.4 + |