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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/mdio-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MDIO on GPIOs
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+ - Heiner Kallweit <hkallweit1@gmail.com>
+ - Russell King <linux@armlinux.org.uk>
+
+allOf:
+ - $ref: "mdio.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - virtual,mdio-gpio
+ - microchip,mdio-smi0
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ gpios:
+ minItems: 2
+ items:
+ - description: MDC
+ - description: MDIO
+ - description: MDO
+
+#Note: Each gpio-mdio bus should have an alias correctly numbered in "aliases"
+#node.
+additionalProperties:
+ type: object
+
+examples:
+ - |
+ aliases {
+ mdio-gpio0 = &mdio0;
+ };
+
+ mdio0: mdio {
+ compatible = "virtual,mdio-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpios = <&qe_pio_a 11>,
+ <&qe_pio_c 6>;
+ ethphy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+ };
+...