MMC: dw_mmc: PIO mode fixes
Simplify PIO mode routines.
Fix a bug when IO is possibly performed twice because of using old
interrupt status.
Support for slow-speed card writes.

Signed-off-by: Andrey Panov <rockford@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent fa20ea4 commit fb1c0b2380f7f4275238ddc7cd95e83fec1daf3e
@Andrey Panov Andrey Panov authored on 6 Mar 2015
Sascha Hauer committed on 9 Mar 2015
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drivers/mci/dw_mmc.c