diff options
| author | Jaehoon Chung <jh80.chung@samsung.com> | 2016-05-04 11:24:14 +0900 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-05-23 11:45:42 +0200 |
| commit | 225faf871ec24f3fa6daa4d2324b5de56690e1c5 (patch) | |
| tree | 7a240f60a1b1f351cb555eae7aa3b9345c8392ad /drivers/mmc/host/dw_mmc.c | |
| parent | d57fe83e0744cdc88236226980c613435ad5c10c (diff) | |
| download | lwn-225faf871ec24f3fa6daa4d2324b5de56690e1c5.tar.gz lwn-225faf871ec24f3fa6daa4d2324b5de56690e1c5.zip | |
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>
Diffstat (limited to 'drivers/mmc/host/dw_mmc.c')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 9dd1bd358434..829a6eebcdce 100644 --- 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; |