[U-Boot] [PATCH 06/22] mmc: Add a fonction to dump the mmc capabilities

Simon Glass sjg at chromium.org
Mon May 15 03:28:23 UTC 2017


On 12 May 2017 at 12:16, Jean-Jacques Hiblot <jjhiblot at ti.com> wrote:
> This adds a simple helper function to display information (bus width and
> mode) based on a capability mask. Useful for debug.
>
> Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
> ---
>  drivers/mmc/mmc.c | 17 +++++++++++++++++
>  include/mmc.h     |  1 +
>  2 files changed, 18 insertions(+)

subject: fonction typo

>
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index 2e1cb0d..5d418c5 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -1133,6 +1133,23 @@ static void mmc_set_bus_width(struct mmc *mmc, uint width)
>         mmc_set_ios(mmc);
>  }
>
> +void mmc_dump_capabilities(const char *text, uint caps)
> +{
> +       enum bus_mode mode;
> +
> +       printf("%s: widths [", text);
> +       if (caps & MMC_MODE_8BIT)
> +               printf("8, ");
> +       if (caps & MMC_MODE_4BIT)
> +               printf("4, ");
> +       printf("1] modes [");
> +
> +       for (mode = MMC_LEGACY; mode < MMC_MODES_END; mode++)
> +               if (MMC_CAP(mode) & caps)
> +                       printf("%s, ", mmc_mode_name(mode));
> +       printf("\b\b]\n");
> +}
> +
>  static int sd_select_bus_freq_width(struct mmc *mmc)
>  {
>         int err;
> diff --git a/include/mmc.h b/include/mmc.h
> index 60a43b0..afda02d 100644
> --- a/include/mmc.h
> +++ b/include/mmc.h
> @@ -422,6 +422,7 @@ enum bus_mode {
>  };
>
>  const char *mmc_mode_name(enum bus_mode mode);
> +void mmc_dump_capabilities(const char *text, uint caps);

Add function comment

>  /*
>   * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
>   * with mmc_get_mmc_dev().
> --
> 1.9.1
>


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