| Simon Glass | 7b9cf84 | 2015-04-05 16:07:35 -0600 | [diff] [blame] | 1 | The following properties are common to the Ethernet controllers: |
| 2 | |
| 3 | - local-mac-address: array of 6 bytes, specifies the MAC address that was |
| 4 | assigned to the network device; |
| 5 | - mac-address: array of 6 bytes, specifies the MAC address that was last used by |
| 6 | the boot program; should be used in cases where the MAC address assigned to |
| 7 | the device by the boot program is different from the "local-mac-address" |
| 8 | property; |
| 9 | - max-speed: number, specifies maximum speed in Mbit/s supported by the device; |
| 10 | - max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than |
| 11 | the maximum frame size (there's contradiction in ePAPR). |
| 12 | - phy-mode: string, operation mode of the PHY interface; supported values are |
| 13 | "mii", "gmii", "sgmii", "qsgmii", "tbi", "rev-mii", "rmii", "rgmii", "rgmii-id", |
| 14 | "rgmii-rxid", "rgmii-txid", "rtbi", "smii", "xgmii"; this is now a de-facto |
| 15 | standard property; |
| 16 | - phy-connection-type: the same as "phy-mode" property but described in ePAPR; |
| 17 | - phy-handle: phandle, specifies a reference to a node representing a PHY |
| 18 | device; this property is described in ePAPR and so preferred; |
| 19 | - phy: the same as "phy-handle" property, not recommended for new bindings. |
| 20 | - phy-device: the same as "phy-handle" property, not recommended for new |
| 21 | bindings. |
| 22 | |
| 23 | Child nodes of the Ethernet controller are typically the individual PHY devices |
| 24 | connected via the MDIO bus (sometimes the MDIO bus controller is separate). |
| 25 | They are described in the phy.txt file in this same directory. |