| XILINX AXI ETHERNET Device Tree Bindings |
| -------------------------------------------------------- |
| |
| Also called AXI 1G/2.5G Ethernet Subsystem, the xilinx axi ethernet IP core |
| provides connectivity to an external ethernet PHY supporting different |
| interfaces: MII, GMII, RGMII, SGMII, 1000BaseX. It also includes two |
| segments of memory for buffering TX and RX, as well as the capability of |
| offloading TX/RX checksum calculation off the processor. |
| |
| Management configuration is done through the AXI interface, while payload is |
| sent and received through means of an AXI DMA controller. This driver |
| includes the DMA driver code, so this driver is incompatible with AXI DMA |
| driver. |
| |
| For more details about mdio please refer phy.txt file in the same directory. |
| |
| Required properties: |
| - compatible : Must be one of "xlnx,axi-ethernet-1.00.a", |
| "xlnx,axi-ethernet-1.01.a", "xlnx,axi-ethernet-2.01.a" |
| - reg : Address and length of the IO space. |
| - interrupts : Should be a list of two interrupt, TX and RX. |
| - phy-handle : Should point to the external phy device. |
| See ethernet.txt file in the same directory. |
| - xlnx,rxmem : Set to allocated memory buffer for Rx/Tx in the hardware |
| |
| Optional properties: |
| - phy-mode : See ethernet.txt |
| - xlnx,phy-type : Deprecated, do not use, but still accepted in preference |
| to phy-mode. |
| - xlnx,txcsum : 0 or empty for disabling TX checksum offload, |
| 1 to enable partial TX checksum offload, |
| 2 to enable full TX checksum offload |
| - xlnx,rxcsum : Same values as xlnx,txcsum but for RX checksum offload |
| |
| Example: |
| axi_ethernet_eth: ethernet@40c00000 { |
| compatible = "xlnx,axi-ethernet-1.00.a"; |
| device_type = "network"; |
| interrupt-parent = <µblaze_0_axi_intc>; |
| interrupts = <2 0>; |
| phy-mode = "mii"; |
| reg = <0x40c00000 0x40000>; |
| xlnx,rxcsum = <0x2>; |
| xlnx,rxmem = <0x800>; |
| xlnx,txcsum = <0x2>; |
| phy-handle = <&phy0>; |
| axi_ethernetlite_0_mdio: mdio { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| phy0: phy@0 { |
| device_type = "ethernet-phy"; |
| reg = <1>; |
| }; |
| }; |
| }; |