Re: [PATCH] ARM: dts: imx6qdl-sabresd: change phy-mode to use rgmii-id

From: Fabio Estevam
Date: Thu Mar 21 2019 - 07:17:11 EST


Hi Abel,

On Thu, Mar 21, 2019 at 5:42 AM Abel Vesa <abel.vesa@xxxxxxx> wrote:

> > It seems we have other boards that need to be fixed and we can not
> > have an old dtb with functional Ethernet with a new kernel.
> >
> > Does anyone know if this issue is AR8031 specific?
>
> I can confirm the same fix is works on imx6sx too.

imx6sx-sabresd also uses an AR8031 Ethernet PHY.

I also tested that changing the phy-mode to "rgmii-id" fixes Ethernet
on pico-imx7d with AR8035.

So yes, we currently have lots of broken dtb's in mainline and I am
wondering what is the proper fix here.

Does anyone know what was the kernel commit that introduced such regressions?