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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