linux/drivers/mmc
Andres Salomon 603ded16a3 olpc: sdhci: add quirk for the Marvell CaFe's interrupt timeout
The CaFe chip has a hardware bug that ends up with us getting a timeout
value that's too small, causing the following sorts of problems:

[   60.525138] mmcblk0: error -110 transferring data
[   60.531477] end_request: I/O error, dev mmcblk0, sector 1484353
[   60.533371] Buffer I/O error on device mmcblk0p2, logical block 181632
[   60.533371] lost page write due to I/O error on mmcblk0p2

Presumably this is an off-by-one error in the hardware.  Incrementing
the timeout count value that we stuff into the TIMEOUT_CONTROL register
gets us a value that works.  This bug was originally discovered by
Pierre Ossman, I believe.

[thanks to Robert Millan for proving that this was still a problem]

Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-04 10:40:09 -07:00
..
card mmc: Fix crash in mmc_block on 64-bit 2008-06-05 16:14:17 -07:00
core mmc: sdio_ops.c should #include "sdio_ops.h" 2008-04-18 20:05:33 +02:00
host olpc: sdhci: add quirk for the Marvell CaFe's interrupt timeout 2008-07-04 10:40:09 -07:00
Kconfig [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
Makefile mmc: Move core functions to subdir 2007-05-01 13:04:18 +02:00