mmc: sdhci: Fix data command CRC error handling

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Existing data command CRC error handling is non-standard and does not work
with some Intel host controllers. Specifically, the assumption that the host
controller will continue operating normally after the error interrupt,
is not valid. Change the driver to handle the error in the same manner
as a data CRC error, taking care to ensure that the data line reset is
done for single or multi-block transfers, and it is done before
unmapping DMA.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Adrian Hunter 2018-11-15 15:53:41 +02:00 • committed by Ulf Hansson

parent 7e2d23ec3a

commit 4bf7809966

1 changed files with 15 additions and 25 deletions

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drivers/mmc/host/sdhci.c

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