diff mbox

mmc: dw_mmc: set the card_width bit per card.

Message ID 1308558233-20545-1-git-send-email-tgih.jun@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Seungwon Jeon June 20, 2011, 8:23 a.m. UTC
This patch sets the card_width bit of CTYPE for the corresponding card.

CTYPE[31] and CTYPE[16] correspond respectively to card[15] and card[0]
for 8-bit mode. And CTYPE[15] and CTYPE[0] correspond respectively to
card[15] and CTYPE[0] for 1-bit or 4-bit mode.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
---
 drivers/mmc/host/dw_mmc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Comments

Will Newton June 20, 2011, 9:15 a.m. UTC | #1
On Mon, Jun 20, 2011 at 9:23 AM, Seungwon Jeon <tgih.jun@samsung.com> wrote:
> This patch sets the card_width bit of CTYPE for the corresponding card.
>
> CTYPE[31] and CTYPE[16] correspond respectively to card[15] and card[0]
> for 8-bit mode. And CTYPE[15] and CTYPE[0] correspond respectively to
> card[15] and CTYPE[0] for 1-bit or 4-bit mode.
>
> Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>

Acked-by: Will Newton <will.newton@imgtec.com>
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Chris Ball June 20, 2011, 6:57 p.m. UTC | #2
Hi,

On Mon, Jun 20 2011, Will Newton wrote:
> On Mon, Jun 20, 2011 at 9:23 AM, Seungwon Jeon <tgih.jun@samsung.com> wrote:
>> This patch sets the card_width bit of CTYPE for the corresponding card.
>>
>> CTYPE[31] and CTYPE[16] correspond respectively to card[15] and card[0]
>> for 8-bit mode. And CTYPE[15] and CTYPE[0] correspond respectively to
>> card[15] and CTYPE[0] for 1-bit or 4-bit mode.
>>
>> Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
>
> Acked-by: Will Newton <will.newton@imgtec.com>

Pushed to mmc-next for 3.1, thanks.

- Chris.
diff mbox

Patch

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 66dcddb..1ca830c 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -574,7 +574,7 @@  static void dw_mci_setup_bus(struct dw_mci_slot *slot)
 	}
 
 	/* Set the current slot bus width */
-	mci_writel(host, CTYPE, slot->ctype);
+	mci_writel(host, CTYPE, (slot->ctype << slot->id));
 }
 
 static void dw_mci_start_request(struct dw_mci *host,