diff options
| author | Hanumath Prasad <hanumath.prasad@stericsson.com> | 2010-08-10 18:01:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-11 08:59:03 -0700 |
| commit | fc8a0985c2846292312556cba10b8a4182f55967 (patch) | |
| tree | 951c4774239bd406271d18acd8574a76e1bbdea8 /drivers/mmc | |
| parent | c1f5977c6a136acbf525c634c8511e19d0c1f195 (diff) | |
| download | lwn-fc8a0985c2846292312556cba10b8a4182f55967.tar.gz lwn-fc8a0985c2846292312556cba10b8a4182f55967.zip | |
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>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | 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 cd8d3d2ea901..ccba3869c029 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -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); } |