1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/usb/cdns,usb3.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Cadence USBSS-DRD controller
8
9maintainers:
10  - Pawel Laszczak <pawell@cadence.com>
11
12properties:
13  compatible:
14    const: cdns,usb3
15
16  reg:
17    items:
18      - description: OTG controller registers
19      - description: XHCI Host controller registers
20      - description: DEVICE controller registers
21
22  reg-names:
23    items:
24      - const: otg
25      - const: xhci
26      - const: dev
27
28  interrupts:
29    minItems: 3
30    items:
31      - description: XHCI host controller interrupt
32      - description: Device controller interrupt
33      - description: OTG/DRD controller interrupt
34      - description: interrupt used to wake up core, e.g when usbcmd.rs is
35                     cleared by xhci core, this interrupt is optional
36
37  interrupt-names:
38    minItems: 3
39    items:
40      - const: host
41      - const: peripheral
42      - const: otg
43      - const: wakeup
44
45  dr_mode:
46    enum: [host, otg, peripheral]
47
48  maximum-speed:
49    enum: [super-speed, high-speed, full-speed]
50
51  phys:
52    minItems: 1
53    maxItems: 2
54
55  phy-names:
56    minItems: 1
57    maxItems: 2
58    items:
59      anyOf:
60        - const: cdns3,usb2-phy
61        - const: cdns3,usb3-phy
62
63  cdns,on-chip-buff-size:
64    description:
65      size of memory intended as internal memory for endpoints
66      buffers expressed in KB
67    $ref: /schemas/types.yaml#/definitions/uint32
68
69  cdns,phyrst-a-enable:
70    description: Enable resetting of PHY if Rx fail is detected
71    type: boolean
72
73required:
74  - compatible
75  - reg
76  - reg-names
77  - interrupts
78  - interrupt-names
79
80additionalProperties: false
81
82examples:
83  - |
84    #include <dt-bindings/interrupt-controller/arm-gic.h>
85    bus {
86        #address-cells = <2>;
87        #size-cells = <2>;
88
89        usb@6000000 {
90            compatible = "cdns,usb3";
91            reg = <0x00 0x6000000 0x00 0x10000>,
92                  <0x00 0x6010000 0x00 0x10000>,
93                  <0x00 0x6020000 0x00 0x10000>;
94            reg-names = "otg", "xhci", "dev";
95            interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
96                         <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
97                         <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
98            interrupt-names = "host", "peripheral", "otg";
99            maximum-speed = "super-speed";
100            dr_mode = "otg";
101        };
102    };
103