xref: /linux/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml (revision 61b7369483efb5e0a9f3b48e75fac00d46d661e0) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/usb/dwc3-xilinx.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Xilinx SuperSpeed DWC3 USB SoC controller
8
9maintainers:
10  - Piyush Mehta <piyush.mehta@amd.com>
11
12properties:
13  compatible:
14    items:
15      - enum:
16          - xlnx,zynqmp-dwc3
17          - xlnx,versal-dwc3
18  reg:
19    maxItems: 1
20
21  "#address-cells":
22    enum: [ 1, 2 ]
23
24  "#size-cells":
25    enum: [ 1, 2 ]
26
27  ranges: true
28
29  power-domains:
30    description: specifies a phandle to PM domain provider node
31    maxItems: 1
32
33  clocks:
34    description:
35      A list of phandle and clock-specifier pairs for the clocks
36      listed in clock-names.
37    items:
38      - description: Master/Core clock, has to be >= 125 MHz
39          for SS operation and >= 60MHz for HS operation.
40      - description: Clock source to core during PHY power down.
41
42  clock-names:
43    items:
44      - const: bus_clk
45      - const: ref_clk
46
47  resets:
48    description:
49      A list of phandles for resets listed in reset-names.
50
51    items:
52      - description: USB core reset
53      - description: USB hibernation reset
54      - description: USB APB reset
55
56  reset-names:
57    items:
58      - const: usb_crst
59      - const: usb_hibrst
60      - const: usb_apbrst
61
62  phys:
63    minItems: 1
64    maxItems: 2
65
66  phy-names:
67    minItems: 1
68    maxItems: 2
69    items:
70      enum:
71        - usb2-phy
72        - usb3-phy
73
74  reset-gpios:
75    description: GPIO used for the reset ulpi-phy
76    maxItems: 1
77
78# Required child node:
79
80patternProperties:
81  "^usb@[0-9a-f]+$":
82    $ref: snps,dwc3.yaml#
83
84required:
85  - compatible
86  - reg
87  - "#address-cells"
88  - "#size-cells"
89  - ranges
90  - power-domains
91  - clocks
92  - clock-names
93  - resets
94  - reset-names
95
96additionalProperties: false
97
98examples:
99  - |
100    #include <dt-bindings/dma/xlnx-zynqmp-dpdma.h>
101    #include <dt-bindings/power/xlnx-zynqmp-power.h>
102    #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
103    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
104    #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
105    #include <dt-bindings/phy/phy.h>
106    axi {
107        #address-cells = <2>;
108        #size-cells = <2>;
109
110        usb@0 {
111            #address-cells = <0x2>;
112            #size-cells = <0x2>;
113            compatible = "xlnx,zynqmp-dwc3";
114            reg = <0x0 0xff9d0000 0x0 0x100>;
115            clocks = <&zynqmp_clk USB0_BUS_REF>, <&zynqmp_clk USB3_DUAL_REF>;
116            clock-names = "bus_clk", "ref_clk";
117            power-domains = <&zynqmp_firmware PD_USB_0>;
118            resets = <&zynqmp_reset ZYNQMP_RESET_USB1_CORERESET>,
119                     <&zynqmp_reset ZYNQMP_RESET_USB1_HIBERRESET>,
120                     <&zynqmp_reset ZYNQMP_RESET_USB1_APB>;
121            reset-names = "usb_crst", "usb_hibrst", "usb_apbrst";
122            phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
123            phy-names = "usb3-phy";
124            ranges;
125
126            usb@fe200000 {
127                compatible = "snps,dwc3";
128                reg = <0x0 0xfe200000 0x0 0x40000>;
129                interrupt-names = "host", "otg";
130                interrupts = <0 65 4>, <0 69 4>;
131                dr_mode = "host";
132                dma-coherent;
133            };
134        };
135    };
136