tree 5f3bd4dc24866f2b0e593b1457b1f22ec641139b
parent 88026842b0a760145aa71d69e74fbc9ec118ca44
author Russell King <rmk@dyn-67.arm.linux.org.uk> 1136327924 +0000
committer Russell King <rmk+kernel@arm.linux.org.uk> 1136327924 +0000

[MMC] Improve MMC card block size selection

Select a block size for IO based on the read and write block size
combinations, and whether the card supports partial block reads
and/or partial block writes.

If we are able to satisfy block reads but not block writes, mark
the device read only.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>