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mmc: dw_mmc: control card read threshold

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Card Read Threshold should be ensured that the card clock does not stop
in the middle of a block of data being transferred from the card to the
Host. Specially, clock stop is allowed in fast transfer such as HS200
or SDR104 mode. And so, it should be enabled.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Seungwon Jeon 2013-08-31 00:13:55 +09:00 • committed by Chris Ball
parent 524268990e
commit f1d2736c81
3 changed files with 40 additions and 2 deletions
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include/linux/mmc/dw_mmc.h
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@ -130,6 +130,7 @@ struct dw_mci {
struct mmc_command *cmd;
struct mmc_data *data;
unsigned int prev_blksz;
unsigned char timing;
struct workqueue_struct *card_workqueue;
/* DMA interface members*/