Hi Florian & ChenYu ? 2017/8/3 1:38, Florian Fainelli ??: > This is incorrect in two ways: > > - this is a property of the PHY, so it should be documented as such in > Documentation/devicetree/bindings/net/phy.txt so other bindings can > re-use it > > - if it was specific to your MAC you would expect a vendor prefix to > this property, which is not there > > An alternative way to implement the external/internal logic selection > would be mandate that your Ethernet PHY node have a compatible string > like this: > > phy at 0 { > compatible = "ethernet-phy-id1234.d400", "ethernet-phy-802.3-c22"; > }; > > Then you don't need this phy-is-internal property, because you can > locate the PHY node by the phy-handle (see more about that in a reply to > patch 10) and you can determine ahead of time whether this PHY is > internal or not based on its compatible string. We may implement a read_bool_property after parsed phy phandle at stmmac_platform.c, which would make MAC driver know it is a internal phy.