The AST2600 splits out the MDIO bus controller from the MAC into its own IP block and rearranges the register layout. Add a new binding to describe the new hardware. Signed-off-by: Andrew Jeffery <andrew@xxxxxxxx> --- .../bindings/net/aspeed,ast2600-mdio.yaml | 61 +++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml diff --git a/Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml b/Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml new file mode 100644 index 000000000000..fa86f6438473 --- /dev/null +++ b/Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/aspeed,ast2600-mdio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED AST2600 MDIO Controller + +maintainers: + - Andrew Jeffery <andrew@xxxxxxxx> + +description: |+ + The ASPEED AST2600 MDIO controller is the third iteration of ASPEED's MDIO + bus register interface, this time also separating out the controller from the + MAC. + +properties: + compatible: + const: aspeed,ast2600-mdio + reg: + maxItems: 1 + description: The register range of the MDIO controller instance + "#address-cells": + const: 1 + "#size-cells": + const: 0 + +patternProperties: + "^ethernet-phy@[a-f0-9]$": + properties: + reg: + description: + The MDIO bus index of the PHY + compatible: + enum: + - ethernet-phy-ieee802.3-c22 + - ethernet-phy-ieee802.3-c45 + required: + - reg + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +examples: + - | + mdio0: mdio@1e650000 { + compatible = "aspeed,ast2600-mdio"; + reg = <0x1e650000 0x8>; + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + ethphy0: ethernet-phy@0 { + compatible = "ethernet-phy-ieee802.3-c22"; + reg = <0>; + }; + }; -- 2.20.1
