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[93.34.88.225]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-453835798acsm57186475e9.10.2025.06.26.14.23.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jun 2025 14:23:54 -0700 (PDT) From: Christian Marangi To: Christian Marangi , Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Vladimir Oltean , Srinivas Kandagatla , Heiner Kallweit , Russell King , "Chester A. Unal" , Daniel Golle , DENG Qingfang , Sean Wang , Simon Horman , Matthias Brugger , AngeloGioacchino Del Regno , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [net-next PATCH v15 02/12] dt-bindings: net: Document support for Airoha AN8855 Switch PBUS MDIO Date: Thu, 26 Jun 2025 23:23:01 +0200 Message-ID: <20250626212321.28114-3-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250626212321.28114-1-ansuelsmth@gmail.com> References: <20250626212321.28114-1-ansuelsmth@gmail.com> 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 Content-Type: text/plain; charset="utf-8" Document support for Airoha AN8855 PBUS MDIO. Airoha AN8855 Switch expose a way to access internal PHYs via Switch register. This is named internally PBUS and does the function of an MDIO bus for the internal PHYs. It does support a maximum of 5 PHYs (matching the number of port the Switch support) Signed-off-by: Christian Marangi Reviewed-by: Rob Herring (Arm) --- .../bindings/net/airoha,an8855-mdio.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/airoha,an8855-mdi= o.yaml diff --git a/Documentation/devicetree/bindings/net/airoha,an8855-mdio.yaml = b/Documentation/devicetree/bindings/net/airoha,an8855-mdio.yaml new file mode 100644 index 000000000000..c873103d2b66 --- /dev/null +++ b/Documentation/devicetree/bindings/net/airoha,an8855-mdio.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/airoha,an8855-mdio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Airoha AN8855 PBUS MDIO + +maintainers: + - Christian Marangi + +description: + Airoha AN8855 Switch expose a way to access internal PHYs via + Switch register. This is named internally PBUS and does the function + of an MDIO bus for the internal PHYs. + + It does support a maximum of 5 PHYs (matching the number of port + the Switch support) + +$ref: /schemas/net/mdio.yaml# + +properties: + compatible: + const: airoha,an8855-mdio + +required: + - compatible + +unevaluatedProperties: false + +examples: + - | + mdio { + compatible =3D "airoha,an8855-mdio"; + #address-cells =3D <1>; + #size-cells =3D <0>; + + internal_phy1: phy@1 { + reg =3D <1>; + }; + + internal_phy2: phy@2 { + reg =3D <2>; + }; + + internal_phy3: phy@3 { + reg =3D <3>; + }; + + internal_phy4: phy@4 { + reg =3D <4>; + }; + + internal_phy5: phy@5 { + reg =3D <5>; + }; + }; --=20 2.48.1