[ 50/61] edac: fix the error about memory type detection on SandyBridge

From: Greg KH
Date: Wed Jun 20 2012 - 14:32:47 EST


3.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Chen Gong <gong.chen@xxxxxxxxxxxxxxx>

commit 2cbb587d3bc41a305168e91b4f3c5b6944a12566 upstream.

On SandyBridge, DDRIOA(Dev: 17 Func: 0 Offset: 328) is used
to detect whether DIMM is RDIMM/LRDIMM, not TA(Dev: 15 Func: 0).

Signed-off-by: Chen Gong <gong.chen@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/edac/sb_edac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -599,7 +599,7 @@ static int get_dimm_config(const struct
pvt->is_close_pg = false;
}

- pci_read_config_dword(pvt->pci_ta, RANK_CFG_A, &reg);
+ pci_read_config_dword(pvt->pci_ddrio, RANK_CFG_A, &reg);
if (IS_RDIMM_ENABLED(reg)) {
/* FIXME: Can also be LRDIMM */
debugf0("Memory is registered\n");


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