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Commit bf129e1c authored by Balaji T K's avatar Balaji T K Committed by Chris Ball
Browse files

mmc: omap_hsmmc: add cmd23 support 



Add set block count command support for close ended multiblock read/write.

Signed-off-by: default avatarBalaji T K <balajitk@ti.com>
Signed-off-by: default avatarChris Ball <chris@printf.net>
parent 9d025334

drivers/mmc/host/omap_hsmmc.c

+17 −4
Original line number Diff line number Diff line
@@ -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) {

		omap_hsmmc_request_done(host, data->mrq);

		return;

	}

	if (data->stop && (data->error || !host->mrq->sbc))

		omap_hsmmc_start_command(host, data->stop, NULL);

	else

		omap_hsmmc_request_done(host, data->mrq);

}



/*
@@ -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);