Re: [PATCH 2/4] ARM: dts: imx: bx50v3: Configure phy-mode

[Ian Ray <ian.ray@gehealthcare.com>]

On Tue, Feb 17, 2026 at 03:58:42PM +0100, Andrew Lunn wrote:
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> 
> On Tue, Feb 17, 2026 at 02:59:49PM +0200, Ian Ray wrote:
> > Set `phy-mode' on network switch CPU ports to eliminate a warning.
> >
> > Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
> > ---
> >  arch/arm/boot/dts/nxp/imx/imx6q-b450v3.dts | 1 +
> >  arch/arm/boot/dts/nxp/imx/imx6q-b650v3.dts | 1 +
> >  arch/arm/boot/dts/nxp/imx/imx6q-b850v3.dts | 1 +
> >  3 files changed, 3 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-b450v3.dts b/arch/arm/boot/dts/nxp/imx/imx6q-b450v3.dts
> > index d994b32ad825..7326b8ad08cb 100644
> > --- a/arch/arm/boot/dts/nxp/imx/imx6q-b450v3.dts
> > +++ b/arch/arm/boot/dts/nxp/imx/imx6q-b450v3.dts
> > @@ -140,6 +140,7 @@ port@3 {
> >       port@4 {
> >               reg = <4>;
> >               label = "cpu";
> > +             phy-mode = "gmii";
> 
> Are the PHYs external to the switch?

Yes, port 4 is connected to an I210.

> 
> >       port@4 {
> >               reg = <4>;
> >               label = "cpu";
> > +             phy-mode = "gmii";
> >               ethernet = <&switch_nic>;
> >               phy-handle = <&switchphy4>;
> 
> You have back to back PHYs on the CPU port? This is not wrong, but
> unusual.

No, the patch sets `phy-mode' on three different boards.  (If I
understand your question correctly.)

Thanks,
Ian

> 
>         Andrew