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

[Peng Fan]

> -----Original Message-----
> From: Lukasz Majewski [mailto:lukma at denx.de]
> Sent: 2019年1月30日 6:58
> To: Peng Fan <peng.fan at nxp.com>
> Cc: sbabic at denx.de; Fabio Estevam <fabio.estevam at nxp.com>;
> dl-uboot-imx <uboot-imx at nxp.com>; u-boot at lists.denx.de
> Subject: Re: [U-Boot] [PATCH 16/20] imx8m: fix sd to mmc1 and emmc to
> mmc2 for i.MX8MM
> 
> 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?

This is a hack for board, needs to be fixed in next version.

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

Could you share more information?

Thanks,
Peng.

> 
> > 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
> 
> --
> 
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> lukma at denx.de