Pick up the patch from the community.
fc8a0985c2846292312556cba10b8a4182f55967
From: Hanumath Prasad <hanumath.pra...@stericsson.com>
Date: Tue, 10 Aug 2010 18:01:45 -0700
Subject: [REVIEW 2/2] mmc: only set blockaddressed for > 2GiB cards
A non-zero value of SEC_COUNT does not indicate that the card is sector
addressed. According to the MMC specification, cards
with a densitygreater than 2GiB are sector addressed.
Acked-by: Linus Walleij <linus.wall...@stericsson.com>
Signed-off-by: Hanumath Prasad <hanumath.pra...@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vinc...@stericsson.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Richard Zhu <r65...@freescale.com>
drivers/mmc/core/mmc.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
ENGR0000137838 SDHCI Some eMMC cards can't work well in our BSP
sha : ce733e353d0ac82c9a607b708f7de2b214408445
local branch is : imx_2.6.35
remote_branch : origin/imx_2.6.35
branch_start : v2.6.35.3
review-commits last updated 2010-12-31 13:49
/home/r65037/bin/linux-infra/tools/review-commits
d33ca02dca1624e86b1513e7bb7cce7281cd9590 don't generate pkg for linux-2.6-testbu
ild for cherry-pick experiment
git version 1.6.3.3
Running checkpatch.pl:
total: 0 errors, 0 warnings, 10 lines checked
Your patch has no obvious style problems and is ready for submission.
checking header of ce733e3: ENGR0000137838 SDHCI Some eMMC cards can't work
well in our BSP
check header: PASS
Checking kernel paths: PASS
review-commits: PASS
=============================================
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 4a9e2ed..95e13c2 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -222,7 +222,9 @@ static int mmc_read_ext_csd(struct mmc_card *card)
ext_csd[EXT_CSD_SEC_CNT + 1] << 8 |
ext_csd[EXT_CSD_SEC_CNT + 2] << 16 |
ext_csd[EXT_CSD_SEC_CNT + 3] << 24;
- if (card->ext_csd.sectors)
+
+ /* Cards with density > 2GiB are sector addressed */
+ if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512)
mmc_card_set_blockaddr(card);
}
--
1.6.3.3
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