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(parent: 2311344) | patch
mmc: block: add eMMC hardware reset support
authorAdrian Hunter <adrian.hunter@intel.com>
Mon, 29 Aug 2011 13:42:15 +0000 (16:42 +0300)
committerChris Ball <cjb@laptop.org>
Wed, 26 Oct 2011 20:32:08 +0000 (16:32 -0400)
commit67716327eec7e9d573e7cb2d806545d6f7c1a38d
tree132888322795b8ecf2d0b3b128ca850ec1eda532tree | snapshot
parent2311344c33cb8add492881900ca427b62f5a7eaecommit | diff
mmc: block: add eMMC hardware reset support

For cards that support hardware reset (just eMMC), try a reset and
retry before returning an I/O error.  However this is not done for
ECC errors and is never done twice for the same operation type
(READ, WRITE, DISCARD, SECURE DISCARD) until that type of operation
again succeeds.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/card/block.c diff | blob | history
drivers/mmc/core/core.c diff | blob | history
Domain: System / Kernel;