Hi Chris, Could you merge this patch? We want to prevent this problem at mainline kernel. Best Regards, Jaehoon Chung On 08/29/2012 03:05 PM, IAN CHEN wrote: > For several MoviNAND, there are some known issue with secure option. > For these specific MoviNAND device, we skip secure option. > > You could refer this discussion in XDA developers. > http://forum.xda-developers.com/showthread.php?t=1644364 > https://plus.google.com/111398485184813224730/posts/21pTYfTsCkB#111398485184813224730/posts/21pTYfTsCkB > > Signed-off-by: Ian Chen <ian.cy.chen@xxxxxxxxxxx> > Reviewed-by: Namjae Jeon <linkinjeon@xxxxxxxxx> > Acked-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> > Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > --- > drivers/mmc/card/block.c | 24 +++++++++++++++++++++++- > include/linux/mmc/card.h | 1 + > 2 files changed, 24 insertions(+), 1 deletions(-) > > diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c > index f1c84de..0377885 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 +1754,26 @@ static const struct mmc_fixup blk_fixups[] = > MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc, > MMC_QUIRK_LONG_READ_TIME), > > + /* > + * Some issue about secure erase/secure trim for Samsung MoviNAND > + */ > + 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 > }; > > diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h > index 111aca5..4b27f9f 100644 > --- a/include/linux/mmc/card.h > +++ b/include/linux/mmc/card.h > @@ -239,6 +239,7 @@ struct mmc_card { > #define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */ > #define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */ > #define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */ > +#define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */ > /* byte mode */ > unsigned int poweroff_notify_state; /* eMMC4.5 notify feature */ > #define MMC_NO_POWER_NOTIFICATION 0 > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
