linux/drivers/mmc/card
Paul Walmsley 2bf22b3982 mmc: core: add workaround for controllers with broken multiblock reads
Due to hardware bugs, some MMC host controllers don't support
multiple-block reads[1].  To resolve, add a new MMC capability flag,
MMC_CAP2_NO_MULTI_READ, which can be set by affected host controller
drivers.  When this capability is set, all reads will be issued one
sector at a time.

1. See for example Advisory 2.1.1.128 "MMC: Multiple Block Read
Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
Revision F (October 2010) (SPRZ278F), available from
http://focus.ti.com/lit/er/sprz278f/sprz278f.pdf

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Dave Hylands <dhylands@gmail.com>
Tested-by: Steve Sakoman <sakoman@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27 09:10:57 -04:00
..
block.c mmc: core: add workaround for controllers with broken multiblock reads 2011-10-27 09:10:57 -04:00
Kconfig mmc: Improve MMC_TEST config text. 2011-03-15 13:48:56 -04:00
Makefile mmc: Makefile: Fix EXTRA_CFLAGS assignment 2010-10-23 21:11:15 +08:00
mmc_test.c mmc: replace printk with appropriate display macro 2011-10-26 16:32:22 -04:00
queue.c mmc: core: mmc sanitize feature support for v4.5 2011-10-26 16:32:26 -04:00
queue.h mmc: block: add handling for two parallel block requests in issue_rw_rq 2011-07-20 17:21:15 -04:00
sdio_uart.c mmc: replace printk with appropriate display macro 2011-10-26 16:32:22 -04:00