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Diffstat (limited to 'Documentation/devicetree/bindings/net/mdio.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/net/mdio.yaml | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/mdio.yaml b/Documentation/devicetree/bindings/net/mdio.yaml new file mode 100644 index 000000000000..b8fa8251c4bc --- /dev/null +++ b/Documentation/devicetree/bindings/net/mdio.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/mdio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MDIO Bus Generic Binding + +maintainers: + - Andrew Lunn <andrew@lunn.ch> + - Florian Fainelli <f.fainelli@gmail.com> + - Heiner Kallweit <hkallweit1@gmail.com> + +description: + These are generic properties that can apply to any MDIO bus. Any + MDIO bus must have a list of child nodes, one per device on the + bus. These should follow the generic ethernet-phy.yaml document, or + a device specific binding document. + +properties: + reset-gpios: + maxItems: 1 + description: + The phandle and specifier for the GPIO that controls the RESET + lines of all PHYs on that MDIO bus. + + reset-delay-us: + description: + RESET pulse width in microseconds. It applies to all PHY devices + and must therefore be appropriately determined based on all PHY + requirements (maximum value of all per-PHY RESET pulse widths). + +examples: + - | + davinci_mdio: mdio@5c030000 { + compatible = "ti,davinci_mdio"; + reg = <0x5c030000 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + + reset-gpios = <&gpio2 5 1>; + reset-delay-us = <2>; + + ethphy0: ethernet-phy@1 { + reg = <1>; + }; + + ethphy1: ethernet-phy@3 { + reg = <3>; + }; + }; |