This change will handle masking of DAT inhibit bit of
present state register. This status bit is genarated if
either the DAT Line Active or Read Transfer Active is set to
1. If this bit is 0, it indicates the host controller can issue
the next command.
Commands with busy signal belong to Command Inhibit(DAT).
e.g (R1b, R5b type).
Changing from 1 to 0 generates a transfer complete interrupt
in normal interrupt status register.
If this bit value is 1: Cannot issue command which uses DAT line.
If this bit value is 0: Can issue command which uses DAT line.
This change is masking SDHCI_DATA_INHIBIT bit only if card is in
busy state.
Without this change we can get the erase timeout error.
error:
MMC erase: dev # 0, block # 27682, count 16383 ...
sdhci_send_command: MMC: 0 busy timeout increasing to: 2000 ms.
Change-Id: I0612e576c09a7fd077bed1a1ee717afcddfa7e87
Signed-off-by: Md Sadre Alam <mdalam@codeaurora.org>
ca63b592db