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>

diff --git a/drivers/mmc/bfin_sdh.c b/drivers/mmc/bfin_sdh.c
index f9da6a370bf5a514a04a1301a344ed835bde43d5..31b645937360022fece4b5490f7057613c7586ad 100644 (file)
--- 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);