Re: [PATCH 2/2] ARM: dts: imx6ull-dhcor: Add Marantec maveo box

[Marek Vasut]

On 4/5/23 20:24, Christoph Niedermaier wrote:
> From: Marek Vasut [mailto:marex@xxxxxxx]
> Sent: Wednesday, April 5, 2023 6:25 PM
> > On 4/5/23 18:02, Christoph Niedermaier wrote:
> >
> > [...]
> >
> > > +/ {
> > > +     model = "DH electronics i.MX6ULL DHCOR on maveo box";
> > > +     compatible = "dh,imx6ull-dhcor-maveo-box", "dh,imx6ull-dhcor-som",
> > > +                  "fsl,imx6ull";
> > > +
> > > +     aliases {
> > > +             /delete-property/ mmc0; /* Avoid double definitions */
> > > +             /delete-property/ mmc1;
> > > +             mmc2 = &usdhc2; /* eMMC should be mmc2 */
> >
> > Why not mmc0 ?
> >
> > Use root=PARTUUID= when booting to avoid any dependency on
> > root=/dev/mmcblk2pN enumeration.
>
> This is due to software interchangeability with the DHCOM
> i.MX6ULL, where the eMMC is always mmc2.

+CC Ulf , I vaguely recall some discussion about this enumeration and I 
am not sure one can really depend on that.