Hi Peng, > > -----Original Message----- > > From: Lukasz Majewski [mailto:[email protected]] > > Sent: 2019年1月30日 6:58 > > To: Peng Fan <[email protected]> > > Cc: [email protected]; Fabio Estevam <[email protected]>; > > dl-uboot-imx <[email protected]>; [email protected] > > 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?
For example:
/ {
model = "K+P iMX6Q";
compatible = "kp,imx6-kp", "fsl,imx6";
aliases {
mmc0 = &usdhc2;
mmc1 = &usdhc4;
usb1 = &usbh1;
};
chosen {
stdout-path = &uart1;
};
And the "aliases" set the order in which you get the devices (like
mmc0, mmc1 above).
>
> 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 <[email protected]>
> > > ---
> > > 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:
> > [email protected]
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: [email protected]
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