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author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/mmc/host/bfin_sdh.c | |
parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/mmc/host/bfin_sdh.c')
-rw-r--r-- | drivers/mmc/host/bfin_sdh.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c index 3343a57..56f7b44 100644 --- a/drivers/mmc/host/bfin_sdh.c +++ b/drivers/mmc/host/bfin_sdh.c @@ -115,7 +115,7 @@ static int sdh_setup_data(struct sdh_host *host, struct mmc_data *data) unsigned int length; unsigned int data_ctl; unsigned int dma_cfg; - struct scatterlist *sg; + unsigned int cycle_ns, timeout; dev_dbg(mmc_dev(host->mmc), "%s enter flags: 0x%x\n", __func__, data->flags); host->data = data; @@ -136,8 +136,11 @@ static int sdh_setup_data(struct sdh_host *host, struct mmc_data *data) data_ctl |= ((ffs(data->blksz) - 1) << 4); bfin_write_SDH_DATA_CTL(data_ctl); - - bfin_write_SDH_DATA_TIMER(0xFFFF); + /* the time of a host clock period in ns */ + cycle_ns = 1000000000 / (get_sclk() / (2 * (host->clk_div + 1))); + timeout = data->timeout_ns / cycle_ns; + timeout += data->timeout_clks; + bfin_write_SDH_DATA_TIMER(timeout); SSYNC(); if (data->flags & MMC_DATA_READ) { @@ -151,6 +154,7 @@ static int sdh_setup_data(struct sdh_host *host, struct mmc_data *data) #if defined(CONFIG_BF54x) dma_cfg |= DMAFLOW_ARRAY | NDSIZE_5 | RESTART | WDSIZE_32 | DMAEN; { + struct scatterlist *sg; int i; for_each_sg(data->sg, sg, host->dma_len, i) { host->sg_cpu[i].start_addr = sg_dma_address(sg); |