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| author | Ian Chen <ian.cy.chen@samsung.com> | 2012-08-29 15:05:36 +0900 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-09-04 13:58:10 -0400 |
| commit | 3550ccdb9d8d350e526b809bf3dd92b550a74fe1 (patch) | |
| tree | 8e656ed3f53adca5c0bc7a598e44d62476f51e78 /include/linux | |
| parent | 9623b5b9192b349bcadb31cce159072a78ac6972 (diff) | |
| download | linux-3.10-3550ccdb9d8d350e526b809bf3dd92b550a74fe1.tar.gz linux-3.10-3550ccdb9d8d350e526b809bf3dd92b550a74fe1.tar.bz2 linux-3.10-3550ccdb9d8d350e526b809bf3dd92b550a74fe1.zip | |
mmc: card: Skip secure erase on MoviNAND; causes unrecoverable corruption.
For several MoviNAND eMMC parts, there are known issues with secure
erase and secure trim. For these specific MoviNAND devices, we skip
these operations.
Specifically, there is a bug in the eMMC firmware that causes
unrecoverable corruption when the MMC is erased with MMC_CAP_ERASE
enabled.
References:
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@samsung.com>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable <stable@vger.kernel.org> [3.0+]
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mmc/card.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 111aca5e97f..4b27f9f503e 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 |