[PATCH v2 2/5] bootstd: Add bootflow_iter_check_mmc() helper

[Guillaume LA ROQUE]

Le 13/06/2024 à 12:13, Mattijs Korpershoek a écrit :
> Some bootflows might be able to only boot from MMC devices.
>
> Add a helper function these bootflows can use.
>
> Reviewed-by: Igor Opaniuk <igor.opaniuk at gmail.com>
> Signed-off-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>
> ---
>   boot/bootflow.c    | 12 ++++++++++++
>   include/bootflow.h |  9 +++++++++
>   2 files changed, 21 insertions(+)
>
> diff --git a/boot/bootflow.c b/boot/bootflow.c
> index 9aa3179c3881..59d77d2385f4 100644
> --- a/boot/bootflow.c
> +++ b/boot/bootflow.c
> @@ -575,6 +575,18 @@ int bootflow_iter_check_blk(const struct bootflow_iter *iter)
>   	return -ENOTSUPP;
>   }
>   
> +int bootflow_iter_check_mmc(const struct bootflow_iter *iter)
> +{
> +	const struct udevice *media = dev_get_parent(iter->dev);
> +	enum uclass_id id = device_get_uclass_id(media);
> +
> +	log_debug("uclass %d: %s\n", id, uclass_get_name(id));
> +	if (id == UCLASS_MMC)
> +		return 0;
> +
> +	return -ENOTSUPP;
> +}
> +
>   int bootflow_iter_check_sf(const struct bootflow_iter *iter)
>   {
>   	const struct udevice *media = dev_get_parent(iter->dev);
> diff --git a/include/bootflow.h b/include/bootflow.h
> index 080ee8501225..6058ddd89b16 100644
> --- a/include/bootflow.h
> +++ b/include/bootflow.h
> @@ -407,6 +407,15 @@ void bootflow_remove(struct bootflow *bflow);
>    */
>   int bootflow_iter_check_blk(const struct bootflow_iter *iter);
>   
> +/**
> + * bootflow_iter_check_mmc() - Check that a bootflow uses a MMC device
> + *
> + * This checks the bootdev in the bootflow to make sure it uses a mmc device
> + *
> + * Return: 0 if OK, -ENOTSUPP if some other device is used (e.g. ethernet)
> + */
> +int bootflow_iter_check_mmc(const struct bootflow_iter *iter);
> +
>   /**
>    * bootflow_iter_check_sf() - Check that a bootflow uses SPI FLASH
>    *
>
Reviewed-by: Guillaume La Roque <glaroque at baylibre.com>