linux-zen-server/Documentation/devicetree/bindings/net/cdns,macb.yaml

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

title: Cadence MACB/GEM Ethernet controller

maintainers:
  - Nicolas Ferre <nicolas.ferre@microchip.com>
  - Claudiu Beznea <claudiu.beznea@microchip.com>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - cdns,at91rm9200-emac  # Atmel at91rm9200 SoC
          - const: cdns,emac          # Generic

      - items:
          - enum:
              - cdns,zynq-gem         # Xilinx Zynq-7xxx SoC
              - cdns,zynqmp-gem       # Xilinx Zynq Ultrascale+ MPSoC
          - const: cdns,gem           # Generic
        deprecated: true

      - items:
          - enum:
              - xlnx,versal-gem       # Xilinx Versal
              - xlnx,zynq-gem         # Xilinx Zynq-7xxx SoC
              - xlnx,zynqmp-gem       # Xilinx Zynq Ultrascale+ MPSoC
          - const: cdns,gem           # Generic

      - items:
          - enum:
              - cdns,at91sam9260-macb # Atmel at91sam9 SoCs
              - cdns,sam9x60-macb     # Microchip sam9x60 SoC
              - microchip,mpfs-macb   # Microchip PolarFire SoC
          - const: cdns,macb          # Generic

      - items:
          - enum:
              - atmel,sama5d3-macb    # 10/100Mbit IP on Atmel sama5d3 SoCs
          - enum:
              - cdns,at91sam9260-macb # Atmel at91sam9 SoCs.
          - const: cdns,macb          # Generic

      - enum:
          - atmel,sama5d29-gem        # GEM XL IP (10/100) on Atmel sama5d29 SoCs
          - atmel,sama5d2-gem         # GEM IP (10/100) on Atmel sama5d2 SoCs
          - atmel,sama5d3-gem         # Gigabit IP on Atmel sama5d3 SoCs
          - atmel,sama5d4-gem         # GEM IP (10/100) on Atmel sama5d4 SoCs
          - cdns,np4-macb             # NP4 SoC devices
          - microchip,sama7g5-emac    # Microchip SAMA7G5 ethernet interface
          - microchip,sama7g5-gem     # Microchip SAMA7G5 gigabit ethernet interface
          - sifive,fu540-c000-gem     # SiFive FU540-C000 SoC
          - cdns,emac                 # Generic
          - cdns,gem                  # Generic
          - cdns,macb                 # Generic

  reg:
    minItems: 1
    items:
      - description: Basic register set
      - description: GEMGXL Management block registers on SiFive FU540-C000 SoC

  interrupts:
    minItems: 1
    maxItems: 8
    description: One interrupt per available hardware queue

  clocks:
    minItems: 1
    maxItems: 5

  clock-names:
    minItems: 1
    items:
      - enum: [ ether_clk, hclk, pclk ]
      - enum: [ hclk, pclk ]
      - const: tx_clk
      - enum: [ rx_clk, tsu_clk ]
      - const: tsu_clk

  local-mac-address: true

  phy-mode: true

  phy-handle: true

  phys:
    maxItems: 1

  resets:
    maxItems: 1
    description:
      Recommended with ZynqMP, specify reset control for this
      controller instance with zynqmp-reset driver.

  reset-names:
    maxItems: 1

  fixed-link: true

  iommus:
    maxItems: 1

  power-domains:
    maxItems: 1

  '#address-cells':
    const: 1

  '#size-cells':
    const: 0

  mdio:
    type: object
    description:
      Node containing PHY children. If this node is not present, then PHYs will
      be direct children.

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

    properties:
      reset-gpios: true

      magic-packet:
        type: boolean
        description:
          Indicates that the hardware supports waking up via magic packet.

    unevaluatedProperties: false

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - phy-mode

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

  - if:
      not:
        properties:
          compatible:
            contains:
              const: sifive,fu540-c000-gem
    then:
      properties:
        reg:
          maxItems: 1

unevaluatedProperties: false

examples:
  - |
    macb0: ethernet@fffc4000 {
            compatible = "cdns,macb";
            reg = <0xfffc4000 0x4000>;
            interrupts = <21>;
            phy-mode = "rmii";
            local-mac-address = [3a 0e 03 04 05 06];
            clock-names = "pclk", "hclk", "tx_clk";
            clocks = <&clkc 30>, <&clkc 30>, <&clkc 13>;
            #address-cells = <1>;
            #size-cells = <0>;

            ethernet-phy@1 {
                    reg = <0x1>;
                    reset-gpios = <&pioE 6 1>;
            };
    };    

  - |
    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
    #include <dt-bindings/power/xlnx-zynqmp-power.h>
    #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
    #include <dt-bindings/phy/phy.h>

    bus {
            #address-cells = <2>;
            #size-cells = <2>;
            gem1: ethernet@ff0c0000 {
                    compatible = "xlnx,zynqmp-gem", "cdns,gem";
                    interrupt-parent = <&gic>;
                    interrupts = <0 59 4>, <0 59 4>;
                    reg = <0x0 0xff0c0000 0x0 0x1000>;
                    clocks = <&zynqmp_clk LPD_LSBUS>, <&zynqmp_clk GEM1_REF>,
                             <&zynqmp_clk GEM1_TX>, <&zynqmp_clk GEM1_RX>,
                             <&zynqmp_clk GEM_TSU>;
                    clock-names = "pclk", "hclk", "tx_clk", "rx_clk", "tsu_clk";
                    #address-cells = <1>;
                    #size-cells = <0>;
                    iommus = <&smmu 0x875>;
                    power-domains = <&zynqmp_firmware PD_ETH_1>;
                    resets = <&zynqmp_reset ZYNQMP_RESET_GEM1>;
                    reset-names = "gem1_rst";
                    phy-mode = "sgmii";
                    phys = <&psgtr 1 PHY_TYPE_SGMII 1 1>;
                    fixed-link {
                            speed = <1000>;
                            full-duplex;
                            pause;
                    };
            };
    };