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Filename Latest commit message Latest commit date
Benoît Thébaudeau 81a0a8bc38 mmc: sdhci-esdhc-imx: Fix DAT line software reset
On i.MX25, the eSDHC DAT line software reset (SYSCTL.RSTD) unexpectedly
clears at least the data transfer width (PROCTL.DTW), which then results
in data CRC errors. This behavior is not documented, but it has actually
been observed. Consequently, the DAT line software resets triggered by
sdhci.c in case of errors caused unrecoverable errors.

Fix this by making sure that the DAT line software reset does not alter
the Host Control register. This behavior being undocumented, it may also
be present on other i.MX SoCs, so apply this fix for the whole i.MX
family.

Signed-off-by: Benoît Thébaudeau <benoit@wsystem.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-06-20 10:30:33 +02:00
arch mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
block
certs
crypto
Documentation Documentation: rockchip-dw-mshc: add description for rk3328 2017-06-20 10:30:28 +02:00
drivers mmc: sdhci-esdhc-imx: Fix DAT line software reset 2017-06-20 10:30:33 +02:00
firmware
fs mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
include mmc: use proper name for the R-Car SoC 2017-06-20 10:30:30 +02:00
init
ipc
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-06-18 18:46:51 +09:00
lib
mm mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
net
samples
scripts
security
sound
tools Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-06-18 18:42:31 +09:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 4.12-rc6 2017-06-19 22:19:37 +08:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.