mmc: dw_mmc: fix the wrong max_blk_size

According to DesignWare TRM, BLKSIZ is 16bits.
Then it's correct that max_blk_size should be 0xFFFF, not 0x10000.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 9dd1bd3584343f026646da7ba48d8612f664e24d..829a6eebcdcee551ee23f9679f2fb4c8bac46b13 100644 (file)
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2595,13 +2595,13 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
        /* Useful defaults if platform data is unset. */
        if (host->use_dma == TRANS_MODE_IDMAC) {
                mmc->max_segs = host->ring_size;
-               mmc->max_blk_size = 65536;
+               mmc->max_blk_size = 65535;
                mmc->max_seg_size = 0x1000;
                mmc->max_req_size = mmc->max_seg_size * host->ring_size;
                mmc->max_blk_count = mmc->max_req_size / 512;
        } else if (host->use_dma == TRANS_MODE_EDMAC) {
                mmc->max_segs = 64;
-               mmc->max_blk_size = 65536;
+               mmc->max_blk_size = 65535;
                mmc->max_blk_count = 65535;
                mmc->max_req_size =
                                mmc->max_blk_size * mmc->max_blk_count;
@@ -2609,7 +2609,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
        } else {
                /* TRANS_MODE_PIO */
                mmc->max_segs = 64;
-               mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */
+               mmc->max_blk_size = 65535; /* BLKSIZ is 16 bits */
                mmc->max_blk_count = 512;
                mmc->max_req_size = mmc->max_blk_size *
                                    mmc->max_blk_count;