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

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Message-Id: <20120620173025.226294822@linuxfoundation.org>
Date:	Wed, 20 Jun 2012 10:31:10 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Chen Gong <gong.chen@...ux.intel.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: [ 50/61] edac: fix the error about memory type detection on SandyBridge

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

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

From: Chen Gong <gong.chen@...ux.intel.com>

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@...ux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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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