diff options
Diffstat (limited to 'drivers/mmc/host/omap_hsmmc.c')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 14c58caac99..a4dd43f117f 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -997,7 +997,8 @@ static int omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host, } static void set_data_timeout(struct omap_hsmmc_host *host, - struct mmc_request *req) + unsigned int timeout_ns, + unsigned int timeout_clks) { unsigned int timeout, cycle_ns; uint32_t reg, clkd, dto = 0; @@ -1008,8 +1009,8 @@ static void set_data_timeout(struct omap_hsmmc_host *host, clkd = 1; cycle_ns = 1000000000 / (clk_get_rate(host->fclk) / clkd); - timeout = req->data->timeout_ns / cycle_ns; - timeout += req->data->timeout_clks; + timeout = timeout_ns / cycle_ns; + timeout += timeout_clks; if (timeout) { while ((timeout & 0x80000000) == 0) { dto += 1; @@ -1043,12 +1044,18 @@ omap_hsmmc_prepare_data(struct omap_hsmmc_host *host, struct mmc_request *req) if (req->data == NULL) { OMAP_HSMMC_WRITE(host->base, BLK, 0); + /* + * Set an arbitrary 100ms data timeout for commands with + * busy signal. + */ + if (req->cmd->flags & MMC_RSP_BUSY) + set_data_timeout(host, 100000000U, 0); return 0; } OMAP_HSMMC_WRITE(host->base, BLK, (req->data->blksz) | (req->data->blocks << 16)); - set_data_timeout(host, req); + set_data_timeout(host, req->data->timeout_ns, req->data->timeout_clks); if (host->use_dma) { ret = omap_hsmmc_start_dma_transfer(host, req); |