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

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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.



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