diff options
Diffstat (limited to 'resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0015-nb-amd-mct_ddr3-Properly-set-MR0-WR-value.patch')
| -rw-r--r-- | resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0015-nb-amd-mct_ddr3-Properly-set-MR0-WR-value.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0015-nb-amd-mct_ddr3-Properly-set-MR0-WR-value.patch b/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0015-nb-amd-mct_ddr3-Properly-set-MR0-WR-value.patch new file mode 100644 index 0000000..dd76550 --- /dev/null +++ b/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0015-nb-amd-mct_ddr3-Properly-set-MR0-WR-value.patch @@ -0,0 +1,30 @@ +From 5f5614ca862cecec27a3cf1fe843a4c30cbde69b Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Tue, 24 Nov 2015 14:11:52 -0600 +Subject: [PATCH 15/45] nb/amd/mct_ddr3: Properly set MR0 WR value + +The existing code accidentally truncated the MSB from the MR0 +WR value. While this probably had a minimal effect in reality, +it should be configured correctly for maximal system stability. + +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c b/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c +index 822d813..bcf6031 100644 +--- a/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c ++++ b/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c +@@ -967,7 +967,7 @@ static u32 mct_MR0(struct MCTStatStruc *pMCTstat, + + /* Load data into MRS word */ + ret |= (ppd & 0x1) << 12; +- ret |= (wr_ap & 0x3) << 9; ++ ret |= (wr_ap & 0x7) << 9; + ret |= (dll_reset & 0x1) << 8; + ret |= (test_mode & 0x1) << 7; + ret |= ((cas_latency & 0xe) >> 1) << 4; +-- +2.1.4 + |