dt-bindings: net: renesas,ethertsn: Add Ethernet TSN

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/net/renesas,ethertsn.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas Ethernet TSN End-station

maintainers:

  - Niklas Söderlund <niklas.soderlund@ragnatech.se>

description:

  The RTSN device provides Ethernet network using a 10 Mbps, 100 Mbps, or 1

  Gbps full-duplex link via MII/GMII/RMII/RGMII. Depending on the connected PHY.

allOf:

  - $ref: ethernet-controller.yaml#

properties:

  compatible:

    items:

      - enum:

          - renesas,r8a779g0-ethertsn       # R-Car V4H

      - const: renesas,rcar-gen4-ethertsn

  reg:

    items:

      - description: TSN End Station target

      - description: generalized Precision Time Protocol target

  reg-names:

    items:

      - const: tsnes

      - const: gptp

  interrupts:

    items:

      - description: TX data interrupt

      - description: RX data interrupt

  interrupt-names:

    items:

      - const: tx

      - const: rx

  clocks:

    maxItems: 1

  power-domains:

    maxItems: 1

  resets:

    maxItems: 1

  phy-mode:

    contains:

      enum:

        - mii

        - rgmii

  phy-handle:

    $ref: /schemas/types.yaml#/definitions/phandle

    description:

      Specifies a reference to a node representing a PHY device.

  rx-internal-delay-ps:

    enum: [0, 1800]

  tx-internal-delay-ps:

    enum: [0, 2000]

  '#address-cells':

    const: 1

  '#size-cells':

    const: 0

patternProperties:

  "^ethernet-phy@[0-9a-f]$":

    type: object

    $ref: ethernet-phy.yaml#

    unevaluatedProperties: false

required:

  - compatible

  - reg

  - reg-names

  - interrupts

  - interrupt-names

  - clocks

  - power-domains

  - resets

  - phy-mode

  - phy-handle

  - '#address-cells'

  - '#size-cells'

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/r8a779g0-cpg-mssr.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    #include <dt-bindings/power/r8a779g0-sysc.h>

    #include <dt-bindings/gpio/gpio.h>

    tsn0: ethernet@e6460000 {

        compatible = "renesas,r8a779g0-ethertsn", "renesas,rcar-gen4-ethertsn";

        reg = <0xe6460000 0x7000>,

              <0xe6449000 0x500>;

        reg-names = "tsnes", "gptp";

        interrupts = <GIC_SPI 429 IRQ_TYPE_LEVEL_HIGH>,

                     <GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>;

        interrupt-names = "tx", "rx";

        clocks = <&cpg CPG_MOD 2723>;

        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;

        resets = <&cpg 2723>;

        phy-mode = "rgmii";

        tx-internal-delay-ps = <2000>;

        phy-handle = <&phy3>;

        #address-cells = <1>;

        #size-cells = <0>;

        phy3: ethernet-phy@3 {

            compatible = "ethernet-phy-ieee802.3-c45";

            reg = <0>;

            interrupt-parent = <&gpio4>;

            interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

            reset-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;

        };

    };