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
7 title: Marvell USB to MDIO Controller
8
9 maintainers:
10 - Tobias Waldekranz <tobias@waldekranz.com>
11
12 description: |+
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
22 allOf:
23 - $ref: mdio.yaml#
24
25 properties:
26 compatible:
27 const: usb1286,1fa4
28 reg:
29 maxItems: 1
30 description: The USB port number on the host controller
31
32 required:
33 - compatible
34 - reg
35 - "#address-cells"
36 - "#size-cells"
37
38 unevaluatedProperties: false
39
40 examples:
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 };
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