1*4882a593SmuzhiyunThe following properties are common to the Ethernet controllers: 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun- local-mac-address: array of 6 bytes, specifies the MAC address that was 4*4882a593Smuzhiyun assigned to the network device; 5*4882a593Smuzhiyun- mac-address: array of 6 bytes, specifies the MAC address that was last used by 6*4882a593Smuzhiyun the boot program; should be used in cases where the MAC address assigned to 7*4882a593Smuzhiyun the device by the boot program is different from the "local-mac-address" 8*4882a593Smuzhiyun property; 9*4882a593Smuzhiyun- max-speed: number, specifies maximum speed in Mbit/s supported by the device; 10*4882a593Smuzhiyun- max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than 11*4882a593Smuzhiyun the maximum frame size (there's contradiction in ePAPR). 12*4882a593Smuzhiyun- phy-mode: string, operation mode of the PHY interface; supported values are 13*4882a593Smuzhiyun "mii", "gmii", "sgmii", "qsgmii", "tbi", "rev-mii", "rmii", "rgmii", "rgmii-id", 14*4882a593Smuzhiyun "rgmii-rxid", "rgmii-txid", "rtbi", "smii", "xgmii"; this is now a de-facto 15*4882a593Smuzhiyun standard property; 16*4882a593Smuzhiyun- phy-connection-type: the same as "phy-mode" property but described in ePAPR; 17*4882a593Smuzhiyun- phy-handle: phandle, specifies a reference to a node representing a PHY 18*4882a593Smuzhiyun device; this property is described in ePAPR and so preferred; 19*4882a593Smuzhiyun- phy: the same as "phy-handle" property, not recommended for new bindings. 20*4882a593Smuzhiyun- phy-device: the same as "phy-handle" property, not recommended for new 21*4882a593Smuzhiyun bindings. 22*4882a593Smuzhiyun 23*4882a593SmuzhiyunChild nodes of the Ethernet controller are typically the individual PHY devices 24*4882a593Smuzhiyunconnected via the MDIO bus (sometimes the MDIO bus controller is separate). 25*4882a593SmuzhiyunThey are described in the phy.txt file in this same directory. 26