amd64_edac: detect DDR3 memory type

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>

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)
         enum mem_type type;
 
         if (boot_cpu_data.x86 >= 0x10 || pvt->ext_model >= K8_REV_F) {
-                /* Rev F and later */
-                type = (pvt->dclr0 & BIT(16)) ? MEM_DDR2 : MEM_RDDR2;
+                if (pvt->dchr0 & DDR3_MODE)
+                        type = (pvt->dclr0 & BIT(16)) ? MEM_DDR3 : MEM_RDDR3;
+                else
+                        type = (pvt->dclr0 & BIT(16)) ? MEM_DDR2 : MEM_RDDR2;
         } else {
-                /* Rev E and earlier */
                 type = (pvt->dclr0 & BIT(18)) ? MEM_DDR : MEM_RDDR;
         }