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[93.34.88.225]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-3a4e8b9a7adsm165671f8f.57.2025.05.27.14.35.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 May 2025 14:35:29 -0700 (PDT) From: Christian Marangi To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiner Kallweit , Russell King , Philipp Zabel , Christian Marangi , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [net-next RFC PATCH 1/2] dt-bindings: net: Document support for Airoha AN7583 MDIO Controller Date: Tue, 27 May 2025 23:34:42 +0200 Message-ID: <20250527213503.12010-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Airoha AN7583 SoC have 3 different MDIO Controller. One comes from the intergated Switch based on MT7530. The other 2 live under the SCU register and expose 2 dedicated MDIO controller. Document the schema that expose the 2 dedicated MDIO controller. Each MDIO controller can be independently reset with the SoC reset line. Signed-off-by: Christian Marangi --- .../bindings/net/airoha,an7583-mdio.yaml | 78 +++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml diff --git a/Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml b/Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml new file mode 100644 index 000000000000..2375f1bf85a2 --- /dev/null +++ b/Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/airoha,an7583-mdio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Airoha AN7583 Dedicated MDIO Controller + +maintainers: + - Christian Marangi + +description: + Airoha AN7583 SoC have 3 different MDIO Controller. + + One comes from the intergated Switch based on MT7530. + + The other 2 (that this schema describe) live under the SCU + register supporting both C22 and C45 PHYs. + +properties: + compatible: + const: airoha,an7583-mdio + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + '^mdio(-(bus|external))@[0-1]$': + type: object + + $ref: mdio.yaml# + + properties: + reg: + minimum: 0 + maximum: 1 + + resets: + maxItems: 1 + + required: + - reg + + unevaluatedProperties: false + +required: + - compatible + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + mdio-controller { + compatible = "airoha,an7583-mdio"; + #address-cells = <1>; + #size-cells = <0>; + + mdio-bus@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + ethernet-phy@1f { + reg = <31>; + }; + }; + + mdio-bus@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + }; + }; -- 2.48.1