[PATCH 3/3] mmc: fsl_esdhc_spl: Call mmc_init() before booting from SD card

[Jaehoon Chung]

On 4/3/22 07:17, Pali Rohár wrote:
> If env is stored on SD card then U-Boot SPL automatically calls mmc_init()
> before it is going to load proper U-Boot from SD card.
> 
> If env is not stored on SD card then U-Boot SPL fails to read proper U-Boot
> from SD card due to missing mmc_init() call.
> 
> So add missing mmc_init() call into fsl_esdhc_spl's mmc_boot() function.
> It fixes booting from SD card on P2020 boards without env support in SPL.
> 
> mmc_init() returns early if card was already initialized, so there is no
> issue with calling this function more times.
> 
> Signed-off-by: Pali Rohár <pali at kernel.org>

Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>

Best Regards,
Jaehoon Chung


> ---
>  drivers/mmc/fsl_esdhc_spl.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/mmc/fsl_esdhc_spl.c b/drivers/mmc/fsl_esdhc_spl.c
> index b87597a88e1d..0146a231b221 100644
> --- a/drivers/mmc/fsl_esdhc_spl.c
> +++ b/drivers/mmc/fsl_esdhc_spl.c
> @@ -77,6 +77,11 @@ void __noreturn mmc_boot(void)
>  		hang();
>  	}
>  
> +	if (mmc_init(mmc)) {
> +		puts("spl: mmc device init failed!\n");
> +		hang();
> +	}
> +
>  #ifdef CONFIG_FSL_CORENET
>  	offset = CONFIG_SYS_MMC_U_BOOT_OFFS;
>  #else