xref: /linux/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml (revision 24bce201d79807b668bf9d9e0aca801c5c0d5f78) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/usb/ti,am62-usb.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: TI's AM62 wrapper module for the Synopsys USBSS-DRD controller
8
9maintainers:
10  - Aswath Govindraju <a-govindraju@ti.com>
11
12properties:
13  compatible:
14    const: ti,am62-usb
15
16  reg:
17    maxItems: 1
18
19  ranges: true
20
21  power-domains:
22    description:
23      PM domain provider node and an args specifier containing
24      the USB ISO device id value. See,
25      Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
26    maxItems: 1
27
28  clocks:
29    description: Clock phandle to usb2_refclk
30    maxItems: 1
31
32  clock-names:
33    items:
34      - const: ref
35
36  ti,vbus-divider:
37    description:
38      Should be present if USB VBUS line is connected to the
39      VBUS pin of the SoC via a 1/3 voltage divider.
40    type: boolean
41
42  ti,syscon-phy-pll-refclk:
43    $ref: /schemas/types.yaml#/definitions/phandle-array
44    items:
45      - items:
46          - description: Phandle to the SYSCON entry
47          - description: USB phy control register offset within SYSCON
48    description:
49      Specifier for conveying frequency of ref clock input, for the
50      operation of USB2PHY.
51
52  '#address-cells':
53    const: 2
54
55  '#size-cells':
56    const: 2
57
58patternProperties:
59  "^usb@[0-9a-f]+$":
60    $ref: snps,dwc3.yaml#
61    description: Required child node
62
63required:
64  - compatible
65  - reg
66  - power-domains
67  - clocks
68  - clock-names
69  - ti,syscon-phy-pll-refclk
70
71additionalProperties: false
72
73examples:
74  - |
75    #include <dt-bindings/soc/ti,sci_pm_domain.h>
76    #include <dt-bindings/interrupt-controller/arm-gic.h>
77    #include <dt-bindings/gpio/gpio.h>
78
79    bus {
80      #address-cells = <2>;
81      #size-cells = <2>;
82
83      usbss1: usb@f910000 {
84        compatible = "ti,am62-usb";
85        reg = <0x00 0x0f910000 0x00 0x800>;
86        clocks = <&k3_clks 162 3>;
87        clock-names = "ref";
88        ti,syscon-phy-pll-refclk = <&wkup_conf 0x4018>;
89        power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>;
90        #address-cells = <2>;
91        #size-cells = <2>;
92
93        usb@31100000 {
94          compatible = "snps,dwc3";
95          reg =<0x00 0x31100000 0x00 0x50000>;
96          interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */
97                       <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>; /* irq.0 */
98          interrupt-names = "host", "peripheral";
99          maximum-speed = "high-speed";
100          dr_mode = "otg";
101        };
102      };
103    };
104