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a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1755068905; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gwJjGeRDVMBB7l8CoE3oI8yFMY7zoU3Tnurl33iINv4=; b=a8zIdsmkB5BsXVHb40TZiVHlgoWsDUtaw55vHcmhGKNJhLCz9j29CPwNeOZmnhkot1ZZ+V toLOSvX56TtZ9s2IELhrLoXJTR/wgrRrlfU160boyf3GskVPFj1gD79WHc3B5T49HGILZJ NvptUKFG6s7JZqXQTnX+MksUbOg+EY12rVqS9rjX0Gb7gv1W22uwMJxr5tbQzgh9iISHKt kcHSWV8Hs6yivt8M6JZGf5mzC2q8Es67zAyOvD1b02GETNt/6y49BuouT6a840GJRD4hn9 jyvbzhAiTae0EByOhTTQy54MsWCAJF98/bfRj2NC8OzbmOi6zcUYH6LmneV19g== To: Andrew Lunn , davem@davemloft.net, Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo Cc: Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Richard Cochran , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Stefan Wahren , Simon Horman , Lukasz Majewski Subject: [net-next v18 1/7] dt-bindings: net: Add MTIP L2 switch description Date: Wed, 13 Aug 2025 09:07:49 +0200 Message-Id: <20250813070755.1523898-2-lukasz.majewski@mailbox.org> In-Reply-To: <20250813070755.1523898-1-lukasz.majewski@mailbox.org> References: <20250813070755.1523898-1-lukasz.majewski@mailbox.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-MBO-RS-ID: 4e3a331e784bc8cb493 X-MBO-RS-META: dwx8bruxypjtdmbbg9e4biobfhruwf31 X-Rspamd-Queue-Id: 4c1zx76Xzlz9t9l Content-Type: text/plain; charset="utf-8" This patch provides description of the MTIP L2 switch available in some NXP's SOCs - e.g. imx287. Signed-off-by: Lukasz Majewski Reviewed-by: Stefan Wahren Reviewed-by: Rob Herring (Arm) --- Changes for v2: - Rename the file to match exactly the compatible (nxp,imx287-mtip-switch) Changes for v3: - Remove '-' from const:'nxp,imx287-mtip-switch' - Use '^port@[12]+$' for port patternProperties - Drop status =3D "okay"; - Provide proper indentation for 'example' binding (replace 8 spaces with 4 spaces) - Remove smsc,disable-energy-detect; property - Remove interrupt-parent and interrupts properties as not required - Remove #address-cells and #size-cells from required properties check - remove description from reg: - Add $ref: ethernet-switch.yaml# Changes for v4: - Use $ref: ethernet-switch.yaml#/$defs/ethernet-ports and remove already referenced properties - Rename file to nxp,imx28-mtip-switch.yaml Changes for v5: - Provide proper description for 'ethernet-port' node Changes for v6: - Proper usage of $ref: ethernet-switch.yaml#/$defs/ethernet-ports/patternProperties when specifying the 'ethernet-ports' property - Add description and check for interrupt-names property Changes for v7: - Change switch interrupt name from 'mtipl2sw' to 'enet_switch' Changes for v8: - None Changes for v9: - Add GPIO_ACTIVE_LOW to reset-gpios mdio phandle Changes for v10: - None Changes for v11: - None Changes for v12: - Remove 'label' from required properties - Move the reference to $ref: ethernet-switch.yaml#/$defs/ethernet-ports the proper place (under 'allOf:') Changes for v13 - v18: - None --- .../bindings/net/nxp,imx28-mtip-switch.yaml | 150 ++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/nxp,imx28-mtip-sw= itch.yaml diff --git a/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.ya= ml b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml new file mode 100644 index 000000000000..6a07dcd119ea --- /dev/null +++ b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml @@ -0,0 +1,150 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP SoC Ethernet Switch Controller (L2 MoreThanIP switch) + +maintainers: + - Lukasz Majewski + +description: + The 2-port switch ethernet subsystem provides ethernet packet (L2) + communication and can be configured as an ethernet switch. It provides t= he + reduced media independent interface (RMII), the management data input + output (MDIO) for physical layer device (PHY) management. + +allOf: + - $ref: ethernet-switch.yaml#/$defs/ethernet-ports + +properties: + compatible: + const: nxp,imx28-mtip-switch + + reg: + maxItems: 1 + + phy-supply: + description: + Regulator that powers Ethernet PHYs. + + clocks: + items: + - description: Register accessing clock + - description: Bus access clock + - description: Output clock for external device - e.g. PHY source cl= ock + - description: IEEE1588 timer clock + + clock-names: + items: + - const: ipg + - const: ahb + - const: enet_out + - const: ptp + + interrupts: + items: + - description: Switch interrupt + - description: ENET0 interrupt + - description: ENET1 interrupt + + interrupt-names: + items: + - const: enet_switch + - const: enet0 + - const: enet1 + + pinctrl-names: true + + ethernet-ports: + type: object + additionalProperties: true + + patternProperties: + '^ethernet-port@[12]$': + type: object + additionalProperties: true + properties: + reg: + items: + - enum: [1, 2] + description: MTIP L2 switch port number + + required: + - reg + - phy-mode + - phy-handle + + mdio: + type: object + $ref: mdio.yaml# + unevaluatedProperties: false + description: + Specifies the mdio bus in the switch, used as a container for phy no= des. + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + - interrupt-names + - mdio + - ethernet-ports + +unevaluatedProperties: false + +examples: + - | + #include + #include + switch@800f0000 { + compatible =3D "nxp,imx28-mtip-switch"; + reg =3D <0x800f0000 0x20000>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&mac0_pins_a>, <&mac1_pins_a>; + phy-supply =3D <®_fec_3v3>; + interrupts =3D <100>, <101>, <102>; + interrupt-names =3D "enet_switch", "enet0", "enet1"; + clocks =3D <&clks 57>, <&clks 57>, <&clks 64>, <&clks 35>; + clock-names =3D "ipg", "ahb", "enet_out", "ptp"; + + ethernet-ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + mtip_port1: ethernet-port@1 { + reg =3D <1>; + label =3D "lan0"; + local-mac-address =3D [ 00 00 00 00 00 00 ]; + phy-mode =3D "rmii"; + phy-handle =3D <ðphy0>; + }; + + mtip_port2: ethernet-port@2 { + reg =3D <2>; + label =3D "lan1"; + local-mac-address =3D [ 00 00 00 00 00 00 ]; + phy-mode =3D "rmii"; + phy-handle =3D <ðphy1>; + }; + }; + + mdio_sw: mdio { + #address-cells =3D <1>; + #size-cells =3D <0>; + + reset-gpios =3D <&gpio2 13 GPIO_ACTIVE_LOW>; + reset-delay-us =3D <25000>; + reset-post-delay-us =3D <10000>; + + ethphy0: ethernet-phy@0 { + reg =3D <0>; + }; + + ethphy1: ethernet-phy@1 { + reg =3D <1>; + }; + }; + }; --=20 2.39.5