[net-next PATCH v15 02/12] dt-bindings: net: Document support for Airoha AN8855 Switch PBUS MDIO
From: Christian Marangi <ansuelsmth@gmail.com>
Date: 2025-06-26 21:23:56
Also in:
linux-arm-kernel, linux-devicetree, linux-mediatek, lkml
Subsystem:
networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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 <ansuelsmth@gmail.com> --- .../bindings/net/airoha,an8855-mdio.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/airoha,an8855-mdio.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 <ansuelsmth@gmail.com> + +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 = "airoha,an8855-mdio"; + #address-cells = <1>; + #size-cells = <0>; + + internal_phy1: phy@1 { + reg = <1>; + }; + + internal_phy2: phy@2 { + reg = <2>; + }; + + internal_phy3: phy@3 { + reg = <3>; + }; + + internal_phy4: phy@4 { + reg = <4>; + }; + + internal_phy5: phy@5 { + reg = <5>; + }; + };
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2.48.1