> + phy-mode: > + enum: > + - rgmii-id phy-mode is normally a board property, in the .dts file, since the board might decide to have extra long clock lines and so want 'rgmii'. The only reason i can think of putting rgmii-id here is if the MAC only supports 'rgmii-id', it is impossible to make it not add delays. If that is true, a comment would be good. Andrew