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| author | Egbert Eich <eich@suse.com> | 2013-04-09 21:11:56 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-05-01 16:24:02 -0400 |
| commit | 0472fbfd3250d1a33d3de78afdcbf24f78ac026b (patch) | |
| tree | 1d5f822e2d95f800121368bba96a185ae6f7b0fb /drivers/mmc/mmc.c | |
| parent | bc8d98713f10582f4e35b9208f1b967c6a9f9953 (diff) | |
| download | u-boot-imx-0472fbfd3250d1a33d3de78afdcbf24f78ac026b.zip u-boot-imx-0472fbfd3250d1a33d3de78afdcbf24f78ac026b.tar.gz u-boot-imx-0472fbfd3250d1a33d3de78afdcbf24f78ac026b.tar.bz2 | |
part/dev_desc: Add log2 of blocksize to block_dev_desc data struct
log2 of the device block size serves as the shift value used to calculate
the block number to read in file systems when implementing avaiable block
sizes.
It is needed quite often in file systems thus it is pre-calculated and
stored in the block device descriptor.
Signed-off-by: Egbert Eich <eich@suse.com>
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 23aeec1..2590f1b 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1203,6 +1203,7 @@ static int mmc_startup(struct mmc *mmc) mmc->block_dev.lun = 0; mmc->block_dev.type = 0; mmc->block_dev.blksz = mmc->read_bl_len; + mmc->block_dev.log2blksz = LOG2(mmc->block_dev.blksz); mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len); sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x", mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff), |