UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Balaji T K 2014-01-21 19:54:42 +05:30 committed by Chris Ball
parent 9d0253341b
commit bf129e1ca1
1 changed files with 17 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/mmc/host/omap_hsmmc.c
View File

@ -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);