mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A
authorBean Huo <beanhuo@micron.com>
Mon, 30 Oct 2023 22:48:09 +0000 (23:48 +0100)
committerUlf Hansson <ulf.hansson@linaro.org>
Fri, 3 Nov 2023 11:01:32 +0000 (12:01 +0100)
commited9009ad300c0f15a3ecfe9613547b1962bde02c
tree3b0ec79698eca6b61635daf60762763f86d47992
parent71956d0cb56c1e5f9feeb4819db87a076418e930
mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A

Micron MTFC4GACAJCN eMMC supports cache but requires that flush cache
operation be allowed only after a write has occurred. Otherwise, the
cache flush command or subsequent commands will time out.

Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Rafael Beims <rafael.beims@toradex.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231030224809.59245-1-beanhuo@iokpp.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/core/block.c
drivers/mmc/core/card.h
drivers/mmc/core/mmc.c
drivers/mmc/core/quirks.h
include/linux/mmc/card.h