| 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"; |
| }; |