| The following properties are common to the Ethernet controllers: |
| |
| - local-mac-address: array of 6 bytes, specifies the MAC address that was |
| assigned to the network device; |
| - mac-address: array of 6 bytes, specifies the MAC address that was last used by |
| the boot program; should be used in cases where the MAC address assigned to |
| the device by the boot program is different from the "local-mac-address" |
| property; |
| - max-speed: number, specifies maximum speed in Mbit/s supported by the device; |
| - max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than |
| the maximum frame size (there's contradiction in ePAPR). |
| - phy-mode: string, operation mode of the PHY interface; supported values are |
| "mii", "gmii", "sgmii", "qsgmii", "tbi", "rev-mii", "rmii", "rgmii", "rgmii-id", |
| "rgmii-rxid", "rgmii-txid", "rtbi", "smii", "xgmii"; this is now a de-facto |
| standard property; |
| - phy-connection-type: the same as "phy-mode" property but described in ePAPR; |
| - phy-handle: phandle, specifies a reference to a node representing a PHY |
| device; this property is described in ePAPR and so preferred; |
| - phy: the same as "phy-handle" property, not recommended for new bindings. |
| - phy-device: the same as "phy-handle" property, not recommended for new |
| bindings. |
| |
| Child nodes of the Ethernet controller are typically the individual PHY devices |
| connected via the MDIO bus (sometimes the MDIO bus controller is separate). |
| They are described in the phy.txt file in this same directory. |
