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