Help needed: How to Specify MTD Partitions on NAND in a Device Tree

[Weijie Gao]

I remembered that the raw nand framework does not support dt binding.
It's not a uclass driver.
So the way is to rewrite the driver as a mtd uclass driver.

Best Regards,
Weijie

Mauri Sandberg <maukka at ext.kapsi.fi> 于2025年2月8日周六 17:04写道：
>
>
>
> On 7.2.2025 22.33, Mauri Sandberg wrote:
> > Hi Weijie
> >
> > On 2/7/25 21:53, Weijie Gao wrote:
> >> Here's an example:
> >> https://github.com/openwrt/openwrt/blob/main/package/boot/uboot-
> >> mediatek/patches/105-configs-add-usefull-stuff-to-mt7988-rfb.patch#L316
> >
> > Sorry, I should have been more specific. Actually defining the
> > partitions is the simpler part. But the mt7621.dtsi in U-boot tree does
> > not contain NAND controller node to begin with and I was not successful
> > in defining one. I tried copying/mimicking one from the mt7621.dtsi in
> > OpenWrt tree but that did not work out.
> >
>
> With fresh pair of eyes I found that the 'mt7621_nand.c' in OpenWrt tree
> implements what the U-boot version is lacking and that they are both
> your work. Are there plans for bringing device tree support to U-boot or
> would you be able to review/assist if someone tried it?
>
> Thanks,
> Mauri