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- APM X-Gene SoC Ethernet nodes
- Ethernet nodes are defined to describe on-chip ethernet interfaces in
- APM X-Gene SoC.
- Required properties for all the ethernet interfaces:
- - compatible: Should be "apm,xgene-enet"
- - reg: Address and length of the register set for the device. It contains the
- information of registers in the same order as described by reg-names
- - reg-names: Should contain the register set names
- - "enet_csr": Ethernet control and status register address space
- - "ring_csr": Descriptor ring control and status register address space
- - "ring_cmd": Descriptor ring command register address space
- - interrupts: Ethernet main interrupt
- - clocks: Reference to the clock entry.
- - local-mac-address: MAC address assigned to this device
- - phy-connection-type: Interface type between ethernet device and PHY device
- Required properties for ethernet interfaces that have external PHY:
- - phy-handle: Reference to a PHY node connected to this device
- - mdio: Device tree subnode with the following required properties:
- - compatible: Must be "apm,xgene-mdio".
- - #address-cells: Must be <1>.
- - #size-cells: Must be <0>.
- For the phy on the mdio bus, there must be a node with the following fields:
- - compatible: PHY identifier. Please refer ./phy.txt for the format.
- - reg: The ID number for the phy.
- Optional properties:
- - status: Should be "ok" or "disabled" for enabled/disabled. Default is "ok".
- Example:
- menetclk: menetclk {
- compatible = "apm,xgene-device-clock";
- clock-output-names = "menetclk";
- status = "ok";
- };
- menet: ethernet@17020000 {
- compatible = "apm,xgene-enet";
- status = "disabled";
- reg = <0x0 0x17020000 0x0 0xd100>,
- <0x0 0X17030000 0x0 0X400>,
- <0x0 0X10000000 0x0 0X200>;
- reg-names = "enet_csr", "ring_csr", "ring_cmd";
- interrupts = <0x0 0x3c 0x4>;
- clocks = <&menetclk 0>;
- local-mac-address = [00 01 73 00 00 01];
- phy-connection-type = "rgmii";
- phy-handle = <&menetphy>;
- mdio {
- compatible = "apm,xgene-mdio";
- #address-cells = <1>;
- #size-cells = <0>;
- menetphy: menetphy@3 {
- compatible = "ethernet-phy-id001c.c915";
- reg = <0x3>;
- };
- };
- };
- /* Board-specific peripheral configurations */
- &menet {
- status = "ok";
- };
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