mmc: sdhci-of-esdhc: add erratum eSDHC5 support
authorYinbo Zhu <yinbo.zhu@nxp.com>
Mon, 11 Mar 2019 02:16:36 +0000 (02:16 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 31 May 2019 13:45:06 +0000 (06:45 -0700)
commitc516ee4b59197c2185ad9e124d9897beae26a173
tree1326400c498746cce810340dfbeab01438ec1313
parent5b567db0051a9ca06b68426ac45ef94487dc4c82
mmc: sdhci-of-esdhc: add erratum eSDHC5 support

[ Upstream commit a46e42712596b51874f04c73f1cdf1017f88df52 ]

Software writing to the Transfer Type configuration register
(system clock domain) can cause a setup/hold violation in the
CRC flops (card clock domain), which can cause write accesses
to be sent with corrupt CRC values. This issue occurs only for
write preceded by read. this erratum is to fix this issue.

Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/mmc/host/sdhci-of-esdhc.c