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/openbmc/linux/drivers/mmc/host/ |
H A D | omap_hsmmc.c | ac2b2115 Tue Aug 08 00:18:15 CDT 2017 Kishon Vijay Abraham I <kishon@ti.com> mmc: host: omap_hsmmc: Add CMD23 capability to omap_hsmmc driver
omap_hsmmc driver always relied on CMD12 to stop transmission. However if CMD12 is not issued at the correct timing, the card will indicate a out of range error. With certain cards in some of the DRA7 based boards, -EIO error is observed. By Adding CMD23 capability, the MMC core will send MMC_SET_BLOCK_COUNT command before MMC_READ_MULTIPLE_BLOCK/MMC_WRITE_MULTIPLE_BLOCK commands.
commit a04e6bae9e6f12 ("mmc: core: check also R1 response for stop commands") exposed this bug in omap_hsmmc driver.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> ac2b2115 Tue Aug 08 00:18:15 CDT 2017 Kishon Vijay Abraham I <kishon@ti.com> mmc: host: omap_hsmmc: Add CMD23 capability to omap_hsmmc driver omap_hsmmc driver always relied on CMD12 to stop transmission. However if CMD12 is not issued at the correct timing, the card will indicate a out of range error. With certain cards in some of the DRA7 based boards, -EIO error is observed. By Adding CMD23 capability, the MMC core will send MMC_SET_BLOCK_COUNT command before MMC_READ_MULTIPLE_BLOCK/MMC_WRITE_MULTIPLE_BLOCK commands. commit a04e6bae9e6f12 ("mmc: core: check also R1 response for stop commands") exposed this bug in omap_hsmmc driver. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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