renesas,ethertsn.yaml

  1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/net/renesas,ethertsn.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Renesas Ethernet TSN End-station
  8
  9maintainers:
 10  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
 11
 12description:
 13  The RTSN device provides Ethernet network using a 10 Mbps, 100 Mbps, or 1
 14  Gbps full-duplex link via MII/GMII/RMII/RGMII. Depending on the connected PHY.
 15
 16allOf:
 17  - $ref: ethernet-controller.yaml#
 18
 19properties:
 20  compatible:
 21    items:
 22      - enum:
 23          - renesas,r8a779g0-ethertsn       # R-Car V4H
 24      - const: renesas,rcar-gen4-ethertsn
 25
 26  reg:
 27    items:
 28      - description: TSN End Station target
 29      - description: generalized Precision Time Protocol target
 30
 31  reg-names:
 32    items:
 33      - const: tsnes
 34      - const: gptp
 35
 36  interrupts:
 37    items:
 38      - description: TX data interrupt
 39      - description: RX data interrupt
 40
 41  interrupt-names:
 42    items:
 43      - const: tx
 44      - const: rx
 45
 46  clocks:
 47    maxItems: 1
 48
 49  power-domains:
 50    maxItems: 1
 51
 52  resets:
 53    maxItems: 1
 54
 55  phy-mode:
 56    contains:
 57      enum:
 58        - mii
 59        - rgmii
 60
 61  phy-handle:
 62    $ref: /schemas/types.yaml#/definitions/phandle
 63    description:
 64      Specifies a reference to a node representing a PHY device.
 65
 66  rx-internal-delay-ps:
 67    enum: [0, 1800]
 68    default: 0
 69
 70  tx-internal-delay-ps:
 71    enum: [0, 2000]
 72    default: 0
 73
 74  mdio:
 75    $ref: /schemas/net/mdio.yaml#
 76    unevaluatedProperties: false
 77
 78required:
 79  - compatible
 80  - reg
 81  - reg-names
 82  - interrupts
 83  - interrupt-names
 84  - clocks
 85  - power-domains
 86  - resets
 87  - phy-mode
 88  - phy-handle
 89  - mdio
 90
 91additionalProperties: false
 92
 93examples:
 94  - |
 95    #include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
 96    #include <dt-bindings/interrupt-controller/arm-gic.h>
 97    #include <dt-bindings/power/r8a779g0-sysc.h>
 98    #include <dt-bindings/gpio/gpio.h>
 99
100    tsn0: ethernet@e6460000 {
101        compatible = "renesas,r8a779g0-ethertsn", "renesas,rcar-gen4-ethertsn";
102        reg = <0xe6460000 0x7000>,
103              <0xe6449000 0x500>;
104        reg-names = "tsnes", "gptp";
105        interrupts = <GIC_SPI 429 IRQ_TYPE_LEVEL_HIGH>,
106                     <GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>;
107        interrupt-names = "tx", "rx";
108        clocks = <&cpg CPG_MOD 2723>;
109        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
110        resets = <&cpg 2723>;
111
112        phy-mode = "rgmii";
113        tx-internal-delay-ps = <2000>;
114        phy-handle = <&phy3>;
115
116        mdio {
117            #address-cells = <1>;
118            #size-cells = <0>;
119
120            reset-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
121            reset-post-delay-us = <4000>;
122
123            phy3: ethernet-phy@0 {
124                compatible = "ethernet-phy-ieee802.3-c45";
125                reg = <0>;
126                interrupt-parent = <&gpio4>;
127                interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
128            };
129        };
130    };