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     1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/net/mdio-gpio.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: MDIO on GPIOs
    8 
    9 maintainers:
   10   - Andrew Lunn <andrew@lunn.ch>
   11   - Heiner Kallweit <hkallweit1@gmail.com>
   12   - Russell King <linux@armlinux.org.uk>
   13 
   14 allOf:
   15   - $ref: "mdio.yaml#"
   16 
   17 properties:
   18   compatible:
   19     enum:
   20       - virtual,mdio-gpio
   21       - microchip,mdio-smi0
   22 
   23   "#address-cells":
   24     const: 1
   25 
   26   "#size-cells":
   27     const: 0
   28 
   29   gpios:
   30     minItems: 2
   31     items:
   32       - description: MDC
   33       - description: MDIO
   34       - description: MDO
   35 
   36 #Note: Each gpio-mdio bus should have an alias correctly numbered in "aliases"
   37 #node.
   38 additionalProperties:
   39   type: object
   40 
   41 examples:
   42   - |
   43     aliases {
   44         mdio-gpio0 = &mdio0;
   45     };
   46 
   47     mdio0: mdio {
   48       compatible = "virtual,mdio-gpio";
   49       #address-cells = <1>;
   50       #size-cells = <0>;
   51       gpios = <&qe_pio_a 11>,
   52               <&qe_pio_c 6>;
   53       ethphy0: ethernet-phy@0 {
   54         reg = <0>;
   55       };
   56     };
   57 ...
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