[PATCH 2/5] mmc: sdhci-esdhc-imx: add flag ESDHC_FLAG_ENGCM07207

[l.stach@pengutronix.de (Lucas Stach)]

Am Montag, den 14.10.2013, 16:23 +0800 schrieb Shawn Guo:
> Add flag ESDHC_FLAG_ENGCM07207 for enabling the workaround for errata
> ENGcm07207 and set the flag for i.MX25 and i.MX35 ESDHC.
> 
> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
> ---
>  drivers/mmc/host/sdhci-esdhc-imx.c |   10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
> index e046917..a5d7d15 100644
> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
> @@ -89,6 +89,11 @@
>   * exeception. Bit1 of Vendor Spec registor is used to fix it.
>   */
>  #define ESDHC_FLAG_MULTIBLK_NO_INT	BIT(1)
> +/*
> + * The flag enables the workaround for ESDHC errata ENGcm07207 which
> + * presents on i.MX25 and i.MX35.

s/presents/is present/

> + */
> +#define ESDHC_FLAG_ENGCM07207		BIT(2)
>  
>  enum imx_esdhc_type {
>  	IMX25_ESDHC,
> @@ -865,6 +870,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
>  	if (is_imx25_esdhc(imx_data))
>  		imx_data->flags |= ESDHC_FLAG_NO_DMAS_BITS;
>  
> +	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
> +		imx_data->flags |= ESDHC_FLAG_ENGCM07207;
> +
>  	imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
>  	if (IS_ERR(imx_data->clk_ipg)) {
>  		err = PTR_ERR(imx_data->clk_ipg);
> @@ -905,7 +913,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
>  
>  	host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
>  
> -	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
> +	if (imx_data->flags & ESDHC_FLAG_ENGCM07207)
>  		/* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */
>  		host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK
>  			| SDHCI_QUIRK_BROKEN_ADMA;

-- 
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