From: Ian Chen <ian.cy.chen@samsung.com>
Date: Wed, 29 Aug 2012 06:05:36 +0000 (+0900)
Subject: mmc: card: Skip secure erase on MoviNAND; causes unrecoverable corruption.
X-Git-Tag: v3.6-rc5~10^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3550ccdb9d8d350e526b809bf3dd92b550a74fe1;p=pandora-kernel.git

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>
---

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