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Commit 1cb34850 authored by Ian Chen's avatar Ian Chen Committed by Stephen Boyd
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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



Change-Id: I9946828b9c9063da312f95483fcc47e26585489a
Signed-off-by: default avatarIan Chen <ian.cy.chen@samsung.com>
Reviewed-by: default avatarNamjae Jeon <linkinjeon@gmail.com>
Acked-by: default avatarJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Cc: stable <stable@vger.kernel.org> [3.0+]
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
Signed-off-by: default avatarPratibhasagar V <pratibha@codeaurora.org>
Patch-mainline: v3.6
Git-commit: 3550ccdb
Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
parent a2e194ae

drivers/mmc/card/block.c

+22 −0
Original line number Diff line number Diff line
@@ -3143,6 +3143,28 @@ static const struct mmc_fixup blk_fixups[] = 
	MMC_FIXUP("SEM04G", 0x45, CID_OEMID_ANY, add_quirk_mmc,

		  MMC_QUIRK_INAND_DATA_TIMEOUT),



	/*

	 * 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

};