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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-05-02 18:24:59 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-05-02 18:24:59 +0200 |
| commit | 37be4e7809e0581db85387e126ae4da68c3d6286 (patch) | |
| tree | a3543202fa066bc930e09b9e36d32ab74fd38967 /drivers/mmc/mmc.c | |
| parent | [ARM] 3485/1: i.MX: MX1 SD/MMC fix of unintentional double start possibility (diff) | |
| download | linux-37be4e7809e0581db85387e126ae4da68c3d6286.tar.xz linux-37be4e7809e0581db85387e126ae4da68c3d6286.zip | |
[MMC] extend data timeout for writes
The CSD contains a "read2write factor" which determines the multiplier to
be applied to the read timeout to obtain the write timeout. We were
ignoring this parameter, resulting in the possibility for writes being
timed out too early.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index da6ddd910fc5..05aa4d6b4f24 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -549,6 +549,7 @@ static void mmc_decode_csd(struct mmc_card *card) csd->read_partial = UNSTUFF_BITS(resp, 79, 1); csd->write_misalign = UNSTUFF_BITS(resp, 78, 1); csd->read_misalign = UNSTUFF_BITS(resp, 77, 1); + csd->r2w_factor = UNSTUFF_BITS(resp, 26, 3); csd->write_blkbits = UNSTUFF_BITS(resp, 22, 4); csd->write_partial = UNSTUFF_BITS(resp, 21, 1); } else { @@ -583,6 +584,7 @@ static void mmc_decode_csd(struct mmc_card *card) csd->read_partial = UNSTUFF_BITS(resp, 79, 1); csd->write_misalign = UNSTUFF_BITS(resp, 78, 1); csd->read_misalign = UNSTUFF_BITS(resp, 77, 1); + csd->r2w_factor = UNSTUFF_BITS(resp, 26, 3); csd->write_blkbits = UNSTUFF_BITS(resp, 22, 4); csd->write_partial = UNSTUFF_BITS(resp, 21, 1); } |