Thanks for the feedback. I will do the changes. On 1/26/21 7:34 PM, Andreas Kemnade wrote: > hmm, pictures (we are talking about FCC ID NOIKBN437, right?) show two > uarts, next to each other. Which one is this? It's the right one (above the Board Identifier String). > That is for emmc? And it is not populated, so probably better not > enable that here. ok. >> +&usdhc1 { >> + pinctrl-names = "default"; >> + pinctrl-0 = <&pinctrl_usdhc1>; >> + status = "okay"; >> +}; >> + > and also not add this. ok. > If you are really brave, you could add a complete devicetree on top > of my branch > kobo/drm-merged-5.10 of github.com/akemnade/linux. Besides of backlight, > it should give full hardware support (including a drm driver for the > display), so we can see what is different and whether we can use > a .dtsi file to define common things. This sounds great. I'll definitely check out your branch. Yes I've also seen in the uboot and kernel sources, that they've stored the board details as a group with flags and versions to the sd. There may be some similarity between multiple boards. Kind Regards Armin