diff options
| author | Sonic Zhang <sonic.zhang@analog.com> | 2010-12-30 08:38:00 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2011-04-08 00:44:27 -0400 |
| commit | 21a50374d5925927128f8984b10447235e198144 (patch) | |
| tree | b684a26064739e5d20a4d7747875b3e3c286ba4c /drivers/mmc/bfin_sdh.c | |
| parent | 1fd2d792a248916de23dc7644b54694c709465f1 (diff) | |
Blackfin: bfin_sdh: add support for multiblock operations
Don't forget to count full data size for the multiblock operation request.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'drivers/mmc/bfin_sdh.c')
| -rw-r--r-- | drivers/mmc/bfin_sdh.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/mmc/bfin_sdh.c b/drivers/mmc/bfin_sdh.c index f9da6a370bf..31b64593736 100644 --- a/drivers/mmc/bfin_sdh.c +++ b/drivers/mmc/bfin_sdh.c @@ -114,11 +114,12 @@ static int sdh_setup_data(struct mmc *mmc, struct mmc_data *data) u16 data_ctl = 0; u16 dma_cfg = 0; int ret = 0; + unsigned long data_size = data->blocksize * data->blocks; /* Don't support write yet. */ if (data->flags & MMC_DATA_WRITE) return UNUSABLE_ERR; - data_ctl |= ((ffs(data->blocksize) - 1) << 4); + data_ctl |= ((ffs(data_size) - 1) << 4); data_ctl |= DTX_DIR; bfin_write_SDH_DATA_CTL(data_ctl); dma_cfg = WDSIZE_32 | RESTART | WNR | DMAEN; @@ -126,13 +127,13 @@ static int sdh_setup_data(struct mmc *mmc, struct mmc_data *data) bfin_write_SDH_DATA_TIMER(-1); blackfin_dcache_flush_invalidate_range(data->dest, - data->dest + data->blocksize); + data->dest + data_size); /* configure DMA */ bfin_write_DMA_START_ADDR(data->dest); - bfin_write_DMA_X_COUNT(data->blocksize / 4); + bfin_write_DMA_X_COUNT(data_size / 4); bfin_write_DMA_X_MODIFY(4); bfin_write_DMA_CONFIG(dma_cfg); - bfin_write_SDH_DATA_LGTH(data->blocksize); + bfin_write_SDH_DATA_LGTH(data_size); /* kick off transfer */ bfin_write_SDH_DATA_CTL(bfin_read_SDH_DATA_CTL() | DTX_DMA_E | DTX_E); |