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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
- max-speed: see ethernet.txt file in the same directory.
- phy: see ethernet.txt file in the same directory.
Clock handling:
The clock frequency is needed to calculate and set polling period of EMAC.
It must be provided by one of:
- clock-frequency: CPU frequency.
- clocks: reference to the clock supplying the EMAC.
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.
Examples:
ethernet@c0fc2000 {
compatible = "snps,arc-emac";
reg = <0xc0fc2000 0x3c>;
interrupts = <6>;
mac-address = [ 00 11 22 33 44 55 ];
clock-frequency = <80000000>;
/* or */
clocks = <&emac_clock>;
max-speed = <100>;
phy = <&phy0>;
#address-cells = <1>;
#size-cells = <0>;
phy0: ethernet-phy@0 {
reg = <1>;
};
};
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