Kernel-4.18.0-80.el8_sh_eth

• Renesas Electronics SH EtherMAC

This file provides information on what the device node for the SH EtherMAC
interface contains.

Required properties:

• compatible: Must contain one or more of the following:

      "renesas,gether-r8a7740" if the device is a part of R8A7740 SoC.
      "renesas,ether-r8a7743"  if the device is a part of R8A7743 SoC.
      "renesas,ether-r8a7745"  if the device is a part of R8A7745 SoC.
      "renesas,ether-r8a7778"  if the device is a part of R8A7778 SoC.
      "renesas,ether-r8a7779"  if the device is a part of R8A7779 SoC.
      "renesas,ether-r8a7790"  if the device is a part of R8A7790 SoC.
      "renesas,ether-r8a7791"  if the device is a part of R8A7791 SoC.
      "renesas,ether-r8a7793"  if the device is a part of R8A7793 SoC.
      "renesas,ether-r8a7794"  if the device is a part of R8A7794 SoC.
      "renesas,gether-r8a77980" if the device is a part of R8A77980 SoC.
      "renesas,ether-r7s72100" if the device is a part of R7S72100 SoC.
      "renesas,rcar-gen1-ether" for a generic R-Car Gen1 device.
      "renesas,rcar-gen2-ether" for a generic R-Car Gen2 or RZ/G1
                                device.
  
      When compatible with the generic version, nodes must list
      the SoC-specific version corresponding to the platform
      first followed by the generic version.
  

• reg: offset and length of (1) the E-DMAC/feLic register block (required),

   (2) the TSU register block (optional).
  

• interrupts: interrupt specifier for the sole interrupt.

• phy-mode: see ethernet.txt file in the same directory.

• phy-handle: see ethernet.txt file in the same directory.

• #address-cells: number of address cells for the MDIO bus, must be equal to 1.

• #size-cells: number of size cells on the MDIO bus, must be equal to 0.

• clocks: clock phandle and specifier pair.

• pinctrl-0: phandle, referring to a default pin configuration node.

Optional properties:

• interrupt-parent: the phandle for the interrupt controller that services

        interrupts for this device.
  

• pinctrl-names: pin configuration state name (“default”).
• renesas,no-ether-link: boolean, specify when a board does not provide a proper

         Ether LINK signal.
  

• renesas,ether-link-active-low: boolean, specify when the Ether LINK signal is

             active-low instead of normal active-high.
  

Example (Lager board):

ethernet@ee700000 {
    compatible = "renesas,ether-r8a7790",
                 "renesas,rcar-gen2-ether";
    reg = <0 0xee700000 0 0x400>;
    interrupt-parent = <&gic>;
    interrupts = <0 162 IRQ_TYPE_LEVEL_HIGH>;
    clocks = <&mstp8_clks R8A7790_CLK_ETHER>;
    phy-mode = "rmii";
    phy-handle = <&phy1>;
    pinctrl-0 = <&ether_pins>;
    pinctrl-names = "default";
    renesas,ether-link-active-low;
    #address-cells = <1>;
    #size-cells = <0>;

    phy1: ethernet-phy@1 {
        reg = <1>;
        interrupt-parent = <&irqc0>;
        interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
        pinctrl-0 = <&phy1_pins>;
        pinctrl-names = "default";
    };
};