linux-kernel - [PATCH 3.9-stable] mmc: dw_mmc: fix fifo access for 64-bit

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Message-id: <000f01ce4a12$d77ccc30$86766490$%choi@samsung.com>
Date:	Mon, 06 May 2013 13:33:22 +0900
From:	Jonghwan Choi <jhbird.choi@...sung.com>
To:	'Jonghwan Choi' <jhbird.choi@...sung.com>,
	linux-kernel@...r.kernel.org
Cc:	stable@...r.kernel.org, 'Seungwon Jeon' <tgih.jun@...sung.com>,
	'Jaehoon Chung' <jh80.chung@...sung.com>,
	'Chris Ball' <cjb@...top.org>
Subject: [PATCH 3.9-stable] mmc: dw_mmc: fix fifo access for 64-bit

This patch looks like it should be in the 3.9-stable tree, should we apply
it?

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

From: "Seungwon Jeon <tgih.jun@...sung.com>"

commit c09fbd7451b797213b3df8bf077776b9ec33f954 upstream

mci_writew causes a failure of fifo access for 64-bit.
mci_writeq is correct.

Signed-off-by: Seungwon Jeon <tgih.jun@...sung.com>
Acked-by: Jaehoon Chung <jh80.chung@...sung.com>
Signed-off-by: Chris Ball <cjb@...top.org>
Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 drivers/mmc/host/dw_mmc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 9834221..cc8d8de 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1353,7 +1353,7 @@ static void dw_mci_push_data64(struct dw_mci *host,
void *buf, int cnt)
 		buf += len;
 		cnt -= len;
 		if (!sg_next(host->sg) || host->part_buf_count == 8) {
-			mci_writew(host, DATA(host->data_offset),
+			mci_writeq(host, DATA(host->data_offset),
 					host->part_buf);
 			host->part_buf_count = 0;
 		}
-- 
1.7.9.5

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