Documentation/devicetree/bindings/net/renesas,etheravb.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/renesas,etheravb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas Ethernet AVB

maintainers:
  - Sergei Shtylyov <sergei.shtylyov@gmail.com>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - renesas,etheravb-r8a7742      # RZ/G1H
              - renesas,etheravb-r8a7743      # RZ/G1M
              - renesas,etheravb-r8a7744      # RZ/G1N
              - renesas,etheravb-r8a7745      # RZ/G1E
              - renesas,etheravb-r8a77470     # RZ/G1C
              - renesas,etheravb-r8a7790      # R-Car H2
              - renesas,etheravb-r8a7791      # R-Car M2-W
              - renesas,etheravb-r8a7792      # R-Car V2H
              - renesas,etheravb-r8a7793      # R-Car M2-N
              - renesas,etheravb-r8a7794      # R-Car E2
          - const: renesas,etheravb-rcar-gen2 # R-Car Gen2 and RZ/G1

      - items:
          - enum:
              - renesas,etheravb-r8a774a1     # RZ/G2M
              - renesas,etheravb-r8a774b1     # RZ/G2N
              - renesas,etheravb-r8a774c0     # RZ/G2E
              - renesas,etheravb-r8a774e1     # RZ/G2H
              - renesas,etheravb-r8a7795      # R-Car H3
              - renesas,etheravb-r8a7796      # R-Car M3-W
              - renesas,etheravb-r8a77961     # R-Car M3-W+
              - renesas,etheravb-r8a77965     # R-Car M3-N
              - renesas,etheravb-r8a77970     # R-Car V3M
              - renesas,etheravb-r8a77980     # R-Car V3H
              - renesas,etheravb-r8a77990     # R-Car E3
              - renesas,etheravb-r8a77995     # R-Car D3
              - renesas,etheravb-r8a779a0     # R-Car V3U
          - const: renesas,etheravb-rcar-gen3 # R-Car Gen3 and RZ/G2

      - items:
          - enum:
              - renesas,r9a07g044-gbeth # RZ/G2{L,LC}
          - const: renesas,rzg2l-gbeth  # RZ/G2L

  reg: true

  interrupts: true

  interrupt-names: true

  clocks: true

  clock-names: true

  iommus:
    maxItems: 1

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

  phy-mode: true

  phy-handle: true

  '#address-cells':
    description: Number of address cells for the MDIO bus.
    const: 1

  '#size-cells':
    description: Number of size cells on the MDIO bus.
    const: 0

  renesas,no-ether-link:
    type: boolean
    description:
      Specify when a board does not provide a proper AVB_LINK signal.

  renesas,ether-link-active-low:
    type: boolean
    description:
      Specify when the AVB_LINK signal is active-low instead of normal
      active-high.

  rx-internal-delay-ps:
    enum: [0, 1800]

  tx-internal-delay-ps:
    enum: [0, 2000]

patternProperties:
  "^ethernet-phy@[0-9a-f]$":
    type: object
    $ref: ethernet-phy.yaml#

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - power-domains
  - resets
  - phy-mode
  - phy-handle
  - '#address-cells'
  - '#size-cells'

allOf:
  - $ref: ethernet-controller.yaml#

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,etheravb-rcar-gen2
              - renesas,etheravb-r8a7795
              - renesas,etheravb-r8a7796
              - renesas,etheravb-r8a77961
              - renesas,etheravb-r8a77965
    then:
      properties:
        reg:
          items:
            - description: MAC register block
            - description: Stream buffer
    else:
      properties:
        reg:
          items:
            - description: MAC register block

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,etheravb-rcar-gen2
              - renesas,rzg2l-gbeth
    then:
      properties:
        interrupts:
          minItems: 1
          maxItems: 3
        interrupt-names:
          minItems: 1
          items:
            - const: mux
            - const: fil
            - const: arp_ns
        rx-internal-delay-ps: false
    else:
      properties:
        interrupts:
          minItems: 25
          maxItems: 25
        interrupt-names:
          items:
            pattern: '^ch[0-9]+$'
      required:
        - interrupt-names
        - rx-internal-delay-ps

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,etheravb-r8a774a1
              - renesas,etheravb-r8a774b1
              - renesas,etheravb-r8a774e1
              - renesas,etheravb-r8a7795
              - renesas,etheravb-r8a7796
              - renesas,etheravb-r8a77961
              - renesas,etheravb-r8a77965
              - renesas,etheravb-r8a77970
              - renesas,etheravb-r8a77980
              - renesas,etheravb-r8a779a0
    then:
      required:
        - tx-internal-delay-ps
    else:
      properties:
        tx-internal-delay-ps: false

  - if:
      properties:
        compatible:
          contains:
            const: renesas,etheravb-r8a77995
    then:
      properties:
        rx-internal-delay-ps:
          const: 1800

  - if:
      properties:
        compatible:
          contains:
            const: renesas,etheravb-r8a77980
    then:
      properties:
        tx-internal-delay-ps:
          const: 2000

  - if:
      properties:
        compatible:
          contains:
            const: renesas,rzg2l-gbeth
    then:
      properties:
        clocks:
          items:
            - description: Main clock
            - description: Register access clock
            - description: Reference clock for RGMII
        clock-names:
          items:
            - const: axi
            - const: chi
            - const: refclk
    else:
      properties:
        clocks:
          minItems: 1
          items:
            - description: AVB functional clock
            - description: Optional TXC reference clock
        clock-names:
          minItems: 1
          items:
            - const: fck
            - const: refclk

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/r8a7795-sysc.h>
    #include <dt-bindings/gpio/gpio.h>
    aliases {
            ethernet0 = &avb;
    };

    avb: ethernet@e6800000 {
            compatible = "renesas,etheravb-r8a7795",
                         "renesas,etheravb-rcar-gen3";
            reg = <0xe6800000 0x800>, <0xe6a00000 0x10000>;
            interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
            interrupt-names = "ch0", "ch1", "ch2", "ch3", "ch4", "ch5", "ch6",
                              "ch7", "ch8", "ch9", "ch10", "ch11", "ch12",
                              "ch13", "ch14", "ch15", "ch16", "ch17", "ch18",
                              "ch19", "ch20", "ch21", "ch22", "ch23", "ch24";
            clocks = <&cpg CPG_MOD 812>;
            clock-names = "fck";
            iommus = <&ipmmu_ds0 16>;
            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
            resets = <&cpg 812>;
            phy-mode = "rgmii";
            phy-handle = <&phy0>;
            rx-internal-delay-ps = <0>;
            tx-internal-delay-ps = <2000>;
            #address-cells = <1>;
            #size-cells = <0>;

            phy0: ethernet-phy@0 {
                    compatible = "ethernet-phy-id0022.1622",
                                 "ethernet-phy-ieee802.3-c22";
                    rxc-skew-ps = <1500>;
                    reg = <0>;
                    interrupt-parent = <&gpio2>;
                    interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
                    reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
            };
    };