1 # SPDX-License-Identifier: GPL-2.0-only OR BSD
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/usb/ti,usb8
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: TI USB8020B USB 3.0 hub controller
8
9 maintainers:
10 - Macpaul Lin <macpaul.lin@mediatek.com>
11
12 allOf:
13 - $ref: usb-device.yaml#
14
15 properties:
16 compatible:
17 enum:
18 - usb451,8025
19 - usb451,8027
20
21 reg: true
22
23 reset-gpios:
24 items:
25 - description: GPIO specifier for GRST#
26
27 vdd-supply:
28 description:
29 VDD power supply to the hub
30
31 peer-hub:
32 $ref: /schemas/types.yaml#/definitions/pha
33 description:
34 phandle to the peer hub on the controlle
35
36 required:
37 - compatible
38 - reg
39 - peer-hub
40
41 additionalProperties: false
42
43 examples:
44 - |
45 #include <dt-bindings/gpio/gpio.h>
46
47 usb {
48 dr_mode = "host";
49 #address-cells = <1>;
50 #size-cells = <0>;
51
52 /* 2.0 hub on port 1 */
53 hub_2_0: hub@1 {
54 compatible = "usb451,8027";
55 reg = <1>;
56 peer-hub = <&hub_3_0>;
57 reset-gpios = <&pio 7 GPIO_ACTIVE_HI
58 vdd-supply = <&usb_hub_fixed_3v3>;
59 };
60
61 /* 3.0 hub on port 2 */
62 hub_3_0: hub@2 {
63 compatible = "usb451,8025";
64 reg = <2>;
65 peer-hub = <&hub_2_0>;
66 reset-gpios = <&pio 7 GPIO_ACTIVE_HI
67 vdd-supply = <&usb_hub_fixed_3v3>;
68 };
69 };
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