| * Synopsys ARC EMAC 10/100 Ethernet driver (EMAC) |
| |
| Required properties: |
| - compatible: Should be "snps,arc-emac" |
| - reg: Address and length of the register set for the device |
| - interrupts: Should contain the EMAC interrupts |
| - clock-frequency: CPU frequency. It is needed to calculate and set polling |
| period of EMAC. |
| - max-speed: Maximum supported data-rate in Mbit/s. In some HW configurations |
| bandwidth of external memory controller might be a limiting factor. That's why |
| it's required to specify which data-rate is supported on current SoC or FPGA. |
| For example if only 10 Mbit/s is supported (10BASE-T) set "10". If 100 Mbit/s is |
| supported (100BASE-TX) set "100". |
| - phy: PHY device attached to the EMAC via MDIO bus |
| |
| Child nodes of the driver are the individual PHY devices connected to the |
| MDIO bus. They must have a "reg" property given the PHY address on the MDIO bus. |
| |
| Optional properties: |
| - mac-address: 6 bytes, mac address |
| |
| Examples: |
| |
| ethernet@c0fc2000 { |
| compatible = "snps,arc-emac"; |
| reg = <0xc0fc2000 0x3c>; |
| interrupts = <6>; |
| mac-address = [ 00 11 22 33 44 55 ]; |
| clock-frequency = <80000000>; |
| max-speed = <100>; |
| phy = <&phy0>; |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| phy0: ethernet-phy@0 { |
| reg = <1>; |
| }; |
| }; |
