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8da891720c
The bindings for Renesas Ethernet TSN was just merged in v6.9 and the design for the bindings followed that of other Renesas Ethernet drivers and thus did not force a child-node for the MDIO bus. As there are no upstream drivers or users of this binding yet take the opportunity to correct this and force the usage of a child-node for the MDIO bus. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20240330131228.1541227-1-niklas.soderlund+renesas@ragnatech.se Signed-off-by: Jakub Kicinski <kuba@kernel.org>
130 lines
2.9 KiB
YAML
130 lines
2.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/net/renesas,ethertsn.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Renesas Ethernet TSN End-station
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maintainers:
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- Niklas Söderlund <niklas.soderlund@ragnatech.se>
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description:
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The RTSN device provides Ethernet network using a 10 Mbps, 100 Mbps, or 1
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Gbps full-duplex link via MII/GMII/RMII/RGMII. Depending on the connected PHY.
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allOf:
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- $ref: ethernet-controller.yaml#
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properties:
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compatible:
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items:
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- enum:
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- renesas,r8a779g0-ethertsn # R-Car V4H
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- const: renesas,rcar-gen4-ethertsn
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reg:
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items:
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- description: TSN End Station target
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- description: generalized Precision Time Protocol target
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reg-names:
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items:
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- const: tsnes
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- const: gptp
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interrupts:
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items:
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- description: TX data interrupt
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- description: RX data interrupt
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interrupt-names:
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items:
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- const: tx
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- const: rx
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clocks:
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maxItems: 1
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power-domains:
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maxItems: 1
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resets:
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maxItems: 1
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phy-mode:
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contains:
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enum:
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- mii
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- rgmii
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phy-handle:
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$ref: /schemas/types.yaml#/definitions/phandle
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description:
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Specifies a reference to a node representing a PHY device.
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rx-internal-delay-ps:
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enum: [0, 1800]
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default: 0
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tx-internal-delay-ps:
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enum: [0, 2000]
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default: 0
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mdio:
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$ref: /schemas/net/mdio.yaml#
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unevaluatedProperties: false
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- interrupt-names
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- clocks
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- power-domains
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- resets
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- phy-mode
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- phy-handle
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- mdio
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/power/r8a779g0-sysc.h>
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#include <dt-bindings/gpio/gpio.h>
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tsn0: ethernet@e6460000 {
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compatible = "renesas,r8a779g0-ethertsn", "renesas,rcar-gen4-ethertsn";
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reg = <0xe6460000 0x7000>,
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<0xe6449000 0x500>;
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reg-names = "tsnes", "gptp";
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interrupts = <GIC_SPI 429 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "tx", "rx";
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clocks = <&cpg CPG_MOD 2723>;
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power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
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resets = <&cpg 2723>;
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phy-mode = "rgmii";
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tx-internal-delay-ps = <2000>;
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phy-handle = <&phy3>;
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mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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reset-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
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reset-post-delay-us = <4000>;
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phy3: ethernet-phy@0 {
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compatible = "ethernet-phy-ieee802.3-c45";
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reg = <0>;
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interrupt-parent = <&gpio4>;
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interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
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};
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};
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};
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