Hi Bruno, On Thu, Jul 16, 2020 at 2:26 PM Bruno Thomsen <bruno.thomsen@xxxxxxxxx> wrote: > Limitations: Ethernet PHY type auto detection does not > work when using reset-{assert-us,deassert-us,gpios} > properties so it's using a fixed PHY type ID for now. Auto > detection worked when using the deprecated FEC properties > phy-reset-{gpios,duration,post-delay}. I think we need to understand this better. Why does it fail? I gave a test on an imx6q-sabresd and the Ethernet PHY (AR8031) could be properly detected using reset-{assert-us,deassert-us,gpios} properties inside the mdio node. Is this a Micrel KSZ8081 specific issue? Please report this issue to the Ethernet PHY folks.