From b5b4ff0a633910b2b9dca7915fd6ab17aa10dc3e Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Wed, 12 Aug 2015 13:08:32 +0800 Subject: mmc: block: skip trim for some kingston eMMCs For some mass production of kingston eMMCs which adopt Phison's firmware will meet an unrecoverable data conrruption occasionally if performing trim due to a firmware bug confirmed by vendor. We found it on Intel-C3230RK platform. So we add fixup of broken trim for it. Signed-off-by: Shawn Lin Signed-off-by: Ulf Hansson --- drivers/mmc/card/block.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/mmc/card') diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index a58287e574cc..c742cfd7674e 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -2389,6 +2389,7 @@ force_ro_fail: #define CID_MANFID_TOSHIBA 0x11 #define CID_MANFID_MICRON 0x13 #define CID_MANFID_SAMSUNG 0x15 +#define CID_MANFID_KINGSTON 0x70 static const struct mmc_fixup blk_fixups[] = { @@ -2451,6 +2452,15 @@ static const struct mmc_fixup blk_fixups[] = MMC_FIXUP("VZL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc, MMC_QUIRK_SEC_ERASE_TRIM_BROKEN), + /* + * On Some Kingston eMMCs, performing trim can result in + * unrecoverable data conrruption occasionally due to a firmware bug. + */ + MMC_FIXUP("V10008", CID_MANFID_KINGSTON, CID_OEMID_ANY, add_quirk_mmc, + MMC_QUIRK_TRIM_BROKEN), + MMC_FIXUP("V10016", CID_MANFID_KINGSTON, CID_OEMID_ANY, add_quirk_mmc, + MMC_QUIRK_TRIM_BROKEN), + END_FIXUP }; -- cgit v1.2.3-58-ga151