Hi Biju Thank you for your patch > Based on a similar patch of the R8A7796 device tree > by Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>. > > Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx> > --- (snip) > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + port@0 { > + reg = <0>; > + }; > + port@1 { > + reg = <1>; > + }; > + }; This is needed at platform side, not SoC side. Thank you for your help !! Best regards --- Kuninori Morimoto