xref: /linux/Documentation/devicetree/bindings/net/marvell,mvusb.yaml (revision 4b660dbd9ee2059850fd30e0df420ca7a38a1856) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/net/marvell,mvusb.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Marvell USB to MDIO Controller
8
9maintainers:
10  - Tobias Waldekranz <tobias@waldekranz.com>
11
12description: |+
13  This controller is mounted on development boards for Marvell's Link Street
14  family of Ethernet switches. It allows you to configure the switch's registers
15  using the standard MDIO interface.
16
17  Since the device is connected over USB, there is no strict requirement of
18  having a device tree representation of the device. But in order to use it with
19  the mv88e6xxx driver, you need a device tree node in which to place the switch
20  definition.
21
22allOf:
23  - $ref: mdio.yaml#
24
25properties:
26  compatible:
27    const: usb1286,1fa4
28  reg:
29    maxItems: 1
30    description: The USB port number on the host controller
31
32required:
33  - compatible
34  - reg
35  - "#address-cells"
36  - "#size-cells"
37
38unevaluatedProperties: false
39
40examples:
41  - |
42    /* USB host controller */
43    usb {
44            #address-cells = <1>;
45            #size-cells = <0>;
46
47            mdio@1 {
48                    compatible = "usb1286,1fa4";
49                    reg = <1>;
50                    #address-cells = <1>;
51                    #size-cells = <0>;
52
53                    ethernet-switch@0 {
54                            compatible = "marvell,mv88e6190";
55                            reg = <0x0>;
56
57                            ethernet-ports {
58                                    #address-cells = <1>;
59                                    #size-cells = <0>;
60
61                                    /* Port definitions */
62                            };
63
64                            mdio {
65                                    /* PHY definitions */
66                            };
67                    };
68            };
69    };
70