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amd64_edac: detect DDR3 memory type 

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2009-11-12 15:37:57 +01:00
parent 239642fe19
commit 6b4c0bdeb0
1 changed files with 4 additions and 3 deletions
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7
drivers/edac/amd64_edac.c
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@ -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;
}