[PATCH 1/2] mmc: sdhci-iproc: Apply caps from bcm2835-mmc driver

Adrian Hunter adrian.hunter at intel.com
Thu Jan 5 01:53:17 PST 2017


On 30/12/16 17:24, Stefan Wahren wrote:
> Since the mmc module on bcm2835 neither provide a capabilities register nor 
> free documentation we must rely on the downstream implementation [1].
> 
> So enable the following capabilities for bcm2835:
> 
> MMC_CAP_MMC_HIGHSPEED
> MMC_CAP_SD_HIGHSPEED
> MMC_CAP_DRIVER_TYPE_A
> MMC_CAP_DRIVER_TYPE_C
> 
> [1] - https://github.com/raspberrypi/linux/blob/rpi-4.4.y/drivers/mmc/host/bcm2835-mmc.c
> 
> Signed-off-by: Stefan Wahren <stefan.wahren at i2se.com>

Acked-by: Adrian Hunter <adrian.hunter at intel.com>

> ---
>  drivers/mmc/host/sdhci-iproc.c |    9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
> index d7046d6..30b3fdf 100644
> --- a/drivers/mmc/host/sdhci-iproc.c
> +++ b/drivers/mmc/host/sdhci-iproc.c
> @@ -211,14 +211,17 @@ static void sdhci_iproc_writeb(struct sdhci_host *host, u8 val, int reg)
>  static const struct sdhci_pltfm_data sdhci_bcm2835_pltfm_data = {
>  	.quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
>  		  SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
> -		  SDHCI_QUIRK_MISSING_CAPS,
> +		  SDHCI_QUIRK_MISSING_CAPS |
> +		  SDHCI_QUIRK_NO_HISPD_BIT,
>  	.ops = &sdhci_iproc_32only_ops,
>  };
>  
>  static const struct sdhci_iproc_data bcm2835_data = {
>  	.pdata = &sdhci_bcm2835_pltfm_data,
> -	.caps = SDHCI_CAN_VDD_330,
> -	.caps1 = 0x00000000,
> +	.caps = SDHCI_CAN_VDD_330 |
> +		SDHCI_CAN_DO_HISPD,
> +	.caps1 = SDHCI_DRIVER_TYPE_A |
> +		 SDHCI_DRIVER_TYPE_C,
>  	.mmc_caps = 0x00000000,
>  };
>  
> 




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