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[79.204.138.150]) by smtp.googlemail.com with ESMTPSA id u10-20020aa7d88a000000b00548ac1f7c5esm2921361edq.64.2023.11.21.10.38.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Nov 2023 10:38:08 -0800 (PST) From: =?utf-8?q?Niklas_S=C3=B6derlund?= To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , devicetree@vger.kernel.org Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, =?utf-8?q?Niklas_S=C3=B6derlund?= Subject: [PATCH v2] dt-bindings: net: renesas,ethertsn: Add Ethernet TSN Date: Tue, 21 Nov 2023 19:37:38 +0100 Message-ID: <20231121183738.656192-1-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.42.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add bindings for Renesas R-Car Ethernet TSN End-station IP. The RTSN device provides Ethernet network. Signed-off-by: Niklas Söderlund Reviewed-by: Krzysztof Kozlowski --- * Changes since v1 - Update patch subject, was "dt-bindings: net: renesas,ethertsn: Add bindings for Ethernet TSN". - Add top-level $ref to ethernet-controller.yaml. - Rework compatible node to have a fallback, renesas,rcar-gen4-ethertsn. - Change compatible value to match renesas style, was renesas,ethertsn-r8a779g0. - Change interrupt names from "tx_data", "rx_data" to "tx", "rx". - Add missing unevaluatedProperties. - Use the generic properties for internal delay tx-internal-delay-ps and rx-internal-delay-ps instead of vendor specific ones. --- .../bindings/net/renesas,ethertsn.yaml | 133 ++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/renesas,ethertsn.yaml diff --git a/Documentation/devicetree/bindings/net/renesas,ethertsn.yaml b/Documentation/devicetree/bindings/net/renesas,ethertsn.yaml new file mode 100644 index 000000000000..475aff7714d6 --- /dev/null +++ b/Documentation/devicetree/bindings/net/renesas,ethertsn.yaml @@ -0,0 +1,133 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$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 + +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 + #include + #include + #include + + tsn0: ethernet@e6460000 { + compatible = "renesas,r8a779g0-ethertsn", "renesas,rcar-gen4-ethertsn"; + reg = <0xe6460000 0x7000>, + <0xe6449000 0x500>; + reg-names = "tsnes", "gptp"; + interrupts = , + ; + 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>; + }; + };