tested-by: Prakash Burla <prakash.burla@xxxxxxxxxxxxxxx
This driver is tested on IFC6410.
> From: <srinivas.kandagatla@xxxxxxxxxx>
> Date: Mon, Jun 2, 2014 at 2:39 PM
> Subject: [PATCH v6 08/12] mmc: mmci: Add support to data commands via
> variant structure.
> To: Russell King <linux@xxxxxxxxxxxxxxxx>, Ulf Hansson
> <ulf.hansson@xxxxxxxxxx>, linux-mmc@xxxxxxxxxxxxxxx
> Cc: Chris Ball <chris@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx,
> linux-arm-msm@xxxxxxxxxxxxxxx, linus.walleij@xxxxxxxxxx, Srinivas
> Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
>
>
> From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
>
> On some SOCs like Qcom there are explicit bits in the command register
> to specify if its a data transfer command or not. So this patch adds
> support to such bits in variant data, giving more flexibility to the
> driver.
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> drivers/mmc/host/mmci.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
> index 4c95a9b..8534c29 100644
> --- a/drivers/mmc/host/mmci.c
> +++ b/drivers/mmc/host/mmci.c
> @@ -59,6 +59,7 @@ static unsigned int fmax = 515633;
> * is asserted (likewise for RX)
> * @fifohalfsize: number of bytes that can be written when MCI_TXFIFOHALFEMPTY
> * is asserted (likewise for RX)
> + * @data_cmd_enable: enable value for data commands.
> * @sdio: variant supports SDIO
> * @st_clkdiv: true if using a ST-specific clock divider algorithm
> * @datactrl_mask_ddrmode: ddr mode mask in datactrl register.
> @@ -79,6 +80,7 @@ struct variant_data {
> unsigned int datalength_bits;
> unsigned int fifosize;
> unsigned int fifohalfsize;
> + unsigned int data_cmd_enable;
> unsigned int datactrl_mask_ddrmode;
> bool sdio;
> bool st_clkdiv;
> @@ -839,6 +841,9 @@ mmci_start_command(struct mmci_host *host, struct
> mmc_command *cmd, u32 c)
> if (/*interrupt*/0)
> c |= MCI_CPSM_INTERRUPT;
>
> + if (mmc_cmd_type(cmd) == MMC_CMD_ADTC)
> + c |= host->variant->data_cmd_enable;
> +
> host->cmd = cmd;
>
> writel(cmd->arg, base + MMCIARGUMENT);
> --
> 1.9.1
>
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