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| -rw-r--r-- | Documentation/devicetree/bindings/net/mdio-mux-multiplexer.yaml | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/mdio-mux-multiplexer.yaml b/Documentation/devicetree/bindings/net/mdio-mux-multiplexer.yaml new file mode 100644 index 000000000..282987074 --- /dev/null +++ b/Documentation/devicetree/bindings/net/mdio-mux-multiplexer.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/mdio-mux-multiplexer.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Properties for an MDIO bus multiplexer consumer device + +maintainers: + - Andrew Lunn <andrew@lunn.ch> + +description: |+ + This is a special case of MDIO mux when MDIO mux is defined as a consumer + of a mux producer device. The mux producer can be of any type like mmio mux + producer, gpio mux producer or generic register based mux producer. + + +allOf: + - $ref: /schemas/net/mdio-mux.yaml# + +properties: + compatible: + const: mdio-mux-multiplexer + + mux-controls: + maxItems: 1 + +required: + - compatible + - mux-controls + +unevaluatedProperties: false + +examples: + - | + mux: mux-controller { // Mux Producer + compatible = "reg-mux"; + #mux-control-cells = <1>; + mux-reg-masks = <0x54 0xf8>, /* 0: reg 0x54, bits 7:3 */ + <0x54 0x07>; /* 1: reg 0x54, bits 2:0 */ + }; + + mdio-mux-1 { // Mux consumer + compatible = "mdio-mux-multiplexer"; + mux-controls = <&mux 0>; + mdio-parent-bus = <&emdio1>; + #address-cells = <1>; + #size-cells = <0>; + + mdio@0 { + reg = <0x0>; + #address-cells = <1>; + #size-cells = <0>; + }; + + mdio@8 { + reg = <0x8>; + #address-cells = <1>; + #size-cells = <0>; + }; + }; + + mdio-mux-2 { // Mux consumer + compatible = "mdio-mux-multiplexer"; + mux-controls = <&mux 1>; + mdio-parent-bus = <&emdio2>; + #address-cells = <1>; + #size-cells = <0>; + + mdio@0 { + reg = <0x0>; + #address-cells = <1>; + #size-cells = <0>; + }; + + mdio@1 { + reg = <0x1>; + #address-cells = <1>; + #size-cells = <0>; + }; + }; +... |