diff options
| author | Balaji T K <balajitk@ti.com> | 2014-01-21 19:54:42 +0530 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-03-04 11:46:48 -0500 |
| commit | bf129e1ca19f973731d56478297be3de3181efcb (patch) | |
| tree | 50820d1e763447c6c46e2b0945e8ae57337bf3fa /drivers/mmc | |
| parent | 9d0253341b4ef89cf9471656d0990774bc8ab95c (diff) | |
| download | linux-bf129e1ca19f973731d56478297be3de3181efcb.tar.bz2 | |
mmc: omap_hsmmc: add cmd23 support
Add set block count command support for close ended multiblock read/write.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <chris@printf.net>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index cdeca5e6fae4..476c6a632bfc 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -202,6 +202,8 @@ struct omap_mmc_of_data { u8 controller_flags; }; +static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host); + static int omap_hsmmc_card_detect(struct device *dev, int slot) { struct omap_hsmmc_host *host = dev_get_drvdata(dev); @@ -888,11 +890,10 @@ omap_hsmmc_xfer_done(struct omap_hsmmc_host *host, struct mmc_data *data) else data->bytes_xfered = 0; - if (!data->stop) { + if (data->stop && (data->error || !host->mrq->sbc)) + omap_hsmmc_start_command(host, data->stop, NULL); + else omap_hsmmc_request_done(host, data->mrq); - return; - } - omap_hsmmc_start_command(host, data->stop, NULL); } /* @@ -903,6 +904,14 @@ omap_hsmmc_cmd_done(struct omap_hsmmc_host *host, struct mmc_command *cmd) { host->cmd = NULL; + if (host->mrq->sbc && (host->cmd == host->mrq->sbc) && + !host->mrq->sbc->error) { + omap_hsmmc_start_dma_transfer(host); + omap_hsmmc_start_command(host, host->mrq->cmd, + host->mrq->data); + return; + } + if (cmd->flags & MMC_RSP_PRESENT) { if (cmd->flags & MMC_RSP_136) { /* response type 2 */ @@ -1504,6 +1513,10 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req) mmc_request_done(mmc, req); return; } + if (req->sbc) { + omap_hsmmc_start_command(host, req->sbc, NULL); + return; + } omap_hsmmc_start_dma_transfer(host); omap_hsmmc_start_command(host, req->cmd, req->data); |