linux-kernel - [PATCH 17/21] amd64_edac: detect DDR3 memory type

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Date:	Mon, 16 Nov 2009 15:16:44 +0100
From:	Borislav Petkov <borislav.petkov@....com>
To:	<linux-kernel@...r.kernel.org>
CC:	<x86@...nel.org>, <norsk5@...oo.com>
Subject: [PATCH 17/21] amd64_edac: detect DDR3 memory type

Signed-off-by: Borislav Petkov <borislav.petkov@....com>
---
 drivers/edac/amd64_edac.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 708d065..d9cde71 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;
 	}
 
-- 
1.6.4.3


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