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authorBorislav Petkov <borislav.petkov@amd.com>2009-11-12 09:37:57 -0500
committerBorislav Petkov <borislav.petkov@amd.com>2009-12-07 13:14:31 -0500
commit6b4c0bdeb00f35cad2d3e0dc0d97bb4950a8f86e (patch)
tree6df106fc0acba87e83980b524d54eefcba0afbb1 /drivers
parent239642fe19adc19ba0a69e96f3b1904dfd6a3b9f (diff)
amd64_edac: detect DDR3 memory type
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/edac/amd64_edac.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 708d065efc95..d9cde7132e89 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1017,10 +1017,11 @@ static enum mem_type amd64_determine_memory_type(struct amd64_pvt *pvt)
1017 enum mem_type type; 1017 enum mem_type type;
1018 1018
1019 if (boot_cpu_data.x86 >= 0x10 || pvt->ext_model >= K8_REV_F) { 1019 if (boot_cpu_data.x86 >= 0x10 || pvt->ext_model >= K8_REV_F) {
1020 /* Rev F and later */ 1020 if (pvt->dchr0 & DDR3_MODE)
1021 type = (pvt->dclr0 & BIT(16)) ? MEM_DDR2 : MEM_RDDR2; 1021 type = (pvt->dclr0 & BIT(16)) ? MEM_DDR3 : MEM_RDDR3;
1022 else
1023 type = (pvt->dclr0 & BIT(16)) ? MEM_DDR2 : MEM_RDDR2;
1022 } else { 1024 } else {
1023 /* Rev E and earlier */
1024 type = (pvt->dclr0 & BIT(18)) ? MEM_DDR : MEM_RDDR; 1025 type = (pvt->dclr0 & BIT(18)) ? MEM_DDR : MEM_RDDR;
1025 } 1026 }
1026 1027