[U-Boot] [PATCH 16/20] imx8m: fix sd to mmc1 and emmc to mmc2 for i.MX8MM

Lukasz Majewski lukma at denx.de
Tue Jan 29 22:57:59 UTC 2019


Hi Peng,

> Since the SD is usdhc2 and eMMC is usdhc3,

Is this true on all IMX8M boards? Or is it only on the development kit
you do have?

My point is that this shall be setup by DTS aliases or maybe by Kconfig
option.

> this cause mapping problem
> for spl_boot_device. So far hard coded them to correct MMC index, so
> that SD and eMMC boot can work.
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---
>  arch/arm/mach-imx/spl.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm/mach-imx/spl.c b/arch/arm/mach-imx/spl.c
> index ebd8ff9290..0048832be8 100644
> --- a/arch/arm/mach-imx/spl.c
> +++ b/arch/arm/mach-imx/spl.c
> @@ -147,9 +147,18 @@ u32 spl_boot_device(void)
>  	case SD1_BOOT:
>  	case MMC1_BOOT:
>  		return BOOT_DEVICE_MMC1;
> +#if defined(CONFIG_IMX8MM)
> +	case SD2_BOOT:
> +	case MMC2_BOOT:
> +		return BOOT_DEVICE_MMC1;
> +	case SD3_BOOT:
> +	case MMC3_BOOT:
> +		return BOOT_DEVICE_MMC2;
> +#else
>  	case SD2_BOOT:
>  	case MMC2_BOOT:
>  		return BOOT_DEVICE_MMC2;
> +#endif
>  #endif
>  	case NAND_BOOT:
>  		return BOOT_DEVICE_NAND;




Best regards,

Lukasz Majewski

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