[U-Boot] [PATCH 7/9] spl: Restart loading if load_image returns -EAGAIN

[Lukasz Majewski]

Hi Marek,

> If the loader->load_image returns -EAGAIN, it is an indication
> the loading process should restart the loading, possible due to
> DTO being applied on the U-Boot's DT. Restart the loading until
> the loader stops returning -EAGAIN.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Pantelis Antoniou <pantelis.antoniou at konsulko.com>
> Cc: Simon Glass <sjg at chromium.org>
> ---
>  common/spl/spl.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/common/spl/spl.c b/common/spl/spl.c
> index 2444abbb08..27f44c27b0 100644
> --- a/common/spl/spl.c
> +++ b/common/spl/spl.c
> @@ -413,11 +413,16 @@ static int spl_load_image(struct spl_image_info
> *spl_image, struct spl_image_loader *loader)
>  {
>  	struct spl_boot_device bootdev;
> +	int ret;
>  
>  	bootdev.boot_device = loader->boot_device;
>  	bootdev.boot_device_name = NULL;
>  
> -	return loader->load_image(spl_image, &bootdev);
> +	do {
> +		ret = loader->load_image(spl_image, &bootdev);
> +	} while (ret == -EAGAIN);

Maybe it would be good to have some counter or timeout (although, I
doubt if any timer is set properly so early) to give the user some
information if we fail?

> +
> +	return ret;
>  }
>  
>  /**



Best regards,

Lukasz Majewski

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