From: Hanumath Prasad <hanumath.pra...@stericsson.com>
A non-zero value of SEC_COUNT does not indicate that the card is sector
addressed. According to the MMC specification, cards with a density
greater 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>
---
drivers/mmc/core/mmc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN drivers/mmc/core/mmc.c~mmc-only-set-blockaddressed-for-2gib-cards
drivers/mmc/core/mmc.c
--- a/drivers/mmc/core/mmc.c~mmc-only-set-blockaddressed-for-2gib-cards
+++ a/drivers/mmc/core/mmc.c
@@ -234,7 +234,9 @@ static int mmc_read_ext_csd(struct mmc_c
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);
}
_
--
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