1 files changed, 25 insertions, 1 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index f1c84decb192..172a768036d8 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1411,7 +1411,8 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
                 /* complete ongoing async transfer before issuing discard */
                 if (card->host->areq)
                         mmc_blk_issue_rw_rq(mq, NULL);
-                if (req->cmd_flags & REQ_SECURE)
+                if (req->cmd_flags & REQ_SECURE &&
+                        !(card->quirks & MMC_QUIRK_SEC_ERASE_TRIM_BROKEN))
                         ret = mmc_blk_issue_secdiscard_rq(mq, req);
                 else
                         ret = mmc_blk_issue_discard_rq(mq, req);
@@ -1716,6 +1717,7 @@ force_ro_fail:
 #define CID_MANFID_SANDISK      0x2
 #define CID_MANFID_TOSHIBA      0x11
 #define CID_MANFID_MICRON       0x13
+#define CID_MANFID_SAMSUNG      0x15
 
 static const struct mmc_fixup blk_fixups[] =
 {
@@ -1752,6 +1754,28 @@ static const struct mmc_fixup blk_fixups[] =
         MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc,
                   MMC_QUIRK_LONG_READ_TIME),
 
+        /*
+         * On these Samsung MoviNAND parts, performing secure erase or
+         * secure trim can result in unrecoverable corruption due to a
+         * firmware bug.
+         */
+        MMC_FIXUP("M8G2FA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+        MMC_FIXUP("MAG4FA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+        MMC_FIXUP("MBG8FA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+        MMC_FIXUP("MCGAFA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+        MMC_FIXUP("VAL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+        MMC_FIXUP("VYL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+        MMC_FIXUP("KYL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+        MMC_FIXUP("VZL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+                  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+
         END_FIXUP
 };