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SubjectRe: [PATCH] ARM: dts: imx6qdl-sabresd: change phy-mode to use rgmii-id
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Am Donnerstag, den 21.03.2019, 08:17 -0300 schrieb Fabio Estevam:
> Hi Abel,
>
> > On Thu, Mar 21, 2019 at 5:42 AM Abel Vesa <abel.vesa@nxp.com> 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.

Fix the DT. It's unfortunate the a kernel and DT bug canceled each
other out, but if the DT is clearly broken and fixing it in a backward
compatible way is not really feasible, I would argue that we should
treat a DT bug like any other bug.

Regards,
Lucas

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