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* 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>;
};
};
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