diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 07:28:58 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 07:28:58 +0400 |
| commit | df2071bd081408318d659cd14a9cf6ff23d874c9 (patch) | |
| tree | b31291b5fd4b9f84c629833afbfaa8d431857475 /drivers/mmc/host/bfin_sdh.c | |
| parent | 97e3d94aac1c3e95bd04d1b186479a4df3663ab8 (diff) | |
| parent | be1066bbcd443a65df312fdecea7e4959adedb45 (diff) | |
| download | linux-df2071bd081408318d659cd14a9cf6ff23d874c9.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/mmc/host/bfin_sdh.c')
| -rw-r--r-- | drivers/mmc/host/bfin_sdh.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c index 3343a57355cc..6919e844072c 100644 --- a/drivers/mmc/host/bfin_sdh.c +++ b/drivers/mmc/host/bfin_sdh.c @@ -17,6 +17,7 @@ #include <linux/dma-mapping.h> #include <linux/mmc/host.h> #include <linux/proc_fs.h> +#include <linux/gfp.h> #include <asm/cacheflush.h> #include <asm/dma.h> @@ -115,7 +116,7 @@ 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 +137,11 @@ 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 +155,7 @@ 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); |