xref: /linux/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml (revision 40de53fd002c6ba087a623722915e8006ed68a02) 
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  - Mubin Sayyed <mubin.sayyed@amd.com>
11  - Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
12
13properties:
14  compatible:
15    items:
16      - enum:
17          - xlnx,zynqmp-dwc3
18          - xlnx,versal-dwc3
19  reg:
20    maxItems: 1
21
22  "#address-cells":
23    enum: [ 1, 2 ]
24
25  "#size-cells":
26    enum: [ 1, 2 ]
27
28  ranges: true
29
30  power-domains:
31    description: specifies a phandle to PM domain provider node
32    maxItems: 1
33
34  clocks:
35    description:
36      A list of phandle and clock-specifier pairs for the clocks
37      listed in clock-names.
38    items:
39      - description: Master/Core clock, has to be >= 125 MHz
40          for SS operation and >= 60MHz for HS operation.
41      - description: Clock source to core during PHY power down.
42
43  clock-names:
44    items:
45      - const: bus_clk
46      - const: ref_clk
47
48  resets:
49    description:
50      A list of phandles for resets listed in reset-names.
51
52    items:
53      - description: USB core reset
54      - description: USB hibernation reset
55      - description: USB APB reset
56
57  reset-names:
58    items:
59      - const: usb_crst
60      - const: usb_hibrst
61      - const: usb_apbrst
62
63  phys:
64    minItems: 1
65    maxItems: 2
66
67  phy-names:
68    minItems: 1
69    maxItems: 2
70    items:
71      enum:
72        - usb2-phy
73        - usb3-phy
74
75  reset-gpios:
76    description: GPIO used for the reset ulpi-phy
77    maxItems: 1
78
79# Required child node:
80
81patternProperties:
82  "^usb@[0-9a-f]+$":
83    $ref: snps,dwc3.yaml#
84
85required:
86  - compatible
87  - reg
88  - "#address-cells"
89  - "#size-cells"
90  - ranges
91  - power-domains
92  - clocks
93  - clock-names
94  - resets
95  - reset-names
96
97additionalProperties: false
98
99examples:
100  - |
101    #include <dt-bindings/dma/xlnx-zynqmp-dpdma.h>
102    #include <dt-bindings/power/xlnx-zynqmp-power.h>
103    #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
104    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
105    #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
106    #include <dt-bindings/phy/phy.h>
107    axi {
108        #address-cells = <2>;
109        #size-cells = <2>;
110
111        usb@0 {
112            #address-cells = <0x2>;
113            #size-cells = <0x2>;
114            compatible = "xlnx,zynqmp-dwc3";
115            reg = <0x0 0xff9d0000 0x0 0x100>;
116            clocks = <&zynqmp_clk USB0_BUS_REF>, <&zynqmp_clk USB3_DUAL_REF>;
117            clock-names = "bus_clk", "ref_clk";
118            power-domains = <&zynqmp_firmware PD_USB_0>;
119            resets = <&zynqmp_reset ZYNQMP_RESET_USB1_CORERESET>,
120                     <&zynqmp_reset ZYNQMP_RESET_USB1_HIBERRESET>,
121                     <&zynqmp_reset ZYNQMP_RESET_USB1_APB>;
122            reset-names = "usb_crst", "usb_hibrst", "usb_apbrst";
123            phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
124            phy-names = "usb3-phy";
125            ranges;
126
127            usb@fe200000 {
128                compatible = "snps,dwc3";
129                reg = <0x0 0xfe200000 0x0 0x40000>;
130                interrupt-names = "host", "otg";
131                interrupts = <0 65 4>, <0 69 4>;
132                dr_mode = "host";
133                dma-coherent;
134            };
135        };
136    };
137