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mmc: dw_mmc: fix the wrong max_blk_size

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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>
This commit is contained in:
Jaehoon Chung 2016-05-04 11:24:14 +09:00 committed by Ulf Hansson
parent d57fe83e07
commit 225faf871e
1 changed files with 3 additions and 3 deletions
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6
drivers/mmc/host/dw_mmc.c
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@ -2595,13 +2595,13 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
/* Useful defaults if platform data is unset. */ /* Useful defaults if platform data is unset. */
if (host->use_dma == TRANS_MODE_IDMAC) { if (host->use_dma == TRANS_MODE_IDMAC) {
mmc->max_segs = host->ring_size; mmc->max_segs = host->ring_size;
mmc->max_blk_size = 65536; mmc->max_blk_size = 65535;
mmc->max_seg_size = 0x1000; mmc->max_seg_size = 0x1000;
mmc->max_req_size = mmc->max_seg_size * host->ring_size; mmc->max_req_size = mmc->max_seg_size * host->ring_size;
mmc->max_blk_count = mmc->max_req_size / 512; mmc->max_blk_count = mmc->max_req_size / 512;
} else if (host->use_dma == TRANS_MODE_EDMAC) { } else if (host->use_dma == TRANS_MODE_EDMAC) {
mmc->max_segs = 64; mmc->max_segs = 64;
mmc->max_blk_size = 65536; mmc->max_blk_size = 65535;
mmc->max_blk_count = 65535; mmc->max_blk_count = 65535;
mmc->max_req_size = mmc->max_req_size =
mmc->max_blk_size * mmc->max_blk_count; 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 { } else {
/* TRANS_MODE_PIO */ /* TRANS_MODE_PIO */
mmc->max_segs = 64; 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_blk_count = 512;
mmc->max_req_size = mmc->max_blk_size * mmc->max_req_size = mmc->max_blk_size *
mmc->max_blk_count; mmc->max_blk_count;