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From: Rabin Vincent on 22 Jun 2010 04:30
From: Hanumath Prasad <hanumath.prasad(a)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.walleij(a)stericsson.com>
Signed-off-by: Hanumath Prasad <hanumath.prasad(a)stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent(a)stericsson.com>
---
drivers/mmc/core/mmc.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 89f7a25..1dc784e 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);
}

--
1.7.0

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