Commit fc8a0985 authored Aug 10, 2010 by Hanumath Prasad Committed by Linus Torvalds Aug 11, 2010

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 density
greater than 2GiB are sector addressed.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Hanumath Prasad <hanumath.prasad@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent c1f5977c

drivers/mmc/core/mmc.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -234,7 +234,9 @@ 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);
		}