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| author | Pierre Ossman <drzeus@drzeus.cx> | 2006-11-21 17:54:23 +0100 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-02-04 20:54:10 +0100 |
| commit | fe4a3c7a20f14d86022a8132adbf6ddb98e7197c (patch) | |
| tree | 0719b8eb2d8c04c286095365ebff3d29285a5796 /drivers/mmc/mmci.c | |
| parent | dba4accab17bd2e2e09088f746257a8c14af1cc2 (diff) | |
| download | blackbird-op-linux-fe4a3c7a20f14d86022a8132adbf6ddb98e7197c.tar.gz blackbird-op-linux-fe4a3c7a20f14d86022a8132adbf6ddb98e7197c.zip | |
mmc: Allow host drivers to specify a max block size
Most controllers have an upper limit on the block size. Allow the host
drivers to specify this and make sure we avoid hitting this limit.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/mmci.c')
| -rw-r--r-- | drivers/mmc/mmci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/mmci.c b/drivers/mmc/mmci.c index ccfe6561be24..5d48e0081894 100644 --- a/drivers/mmc/mmci.c +++ b/drivers/mmc/mmci.c @@ -534,6 +534,11 @@ static int mmci_probe(struct amba_device *dev, void *id) */ mmc->max_seg_size = mmc->max_sectors << 9; + /* + * Block size can be up to 2048 bytes, but must be a power of two. + */ + mmc->max_blk_size = 2048; + spin_lock_init(&host->lock); writel(0, host->base + MMCIMASK0); |
