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
7 title: TI's AM62 wrapper module for the Synopsys USBSS-DRD controller
8
9 maintainers:
10 - Aswath Govindraju <a-govindraju@ti.com>
11
12 properties:
13 compatible:
14 const: ti,am62-usb
15
16 reg:
17 minItems: 1
18 items:
19 - description: USB CFG register space
20 - description: USB PHY2 register space
21
22 ranges: true
23
24 power-domains:
25 description:
26 PM domain provider node and an args specifier containing
27 the USB ISO device id value. See,
28 Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
29 maxItems: 1
30
31 clocks:
32 description: Clock phandle to usb2_refclk
33 maxItems: 1
34
35 clock-names:
36 items:
37 - const: ref
38
39 ti,vbus-divider:
40 description:
41 Should be present if USB VBUS line is connected to the
42 VBUS pin of the SoC via a 1/3 voltage divider.
43 type: boolean
44
45 ti,syscon-phy-pll-refclk:
46 $ref: /schemas/types.yaml#/definitions/phandle-array
47 items:
48 - items:
49 - description: Phandle to the SYSCON entry
50 - description: USB phy control register offset within SYSCON
51 description:
52 Specifier for conveying frequency of ref clock input, for the
53 operation of USB2PHY.
54
55 '#address-cells':
56 const: 2
57
58 '#size-cells':
59 const: 2
60
61 patternProperties:
62 "^usb@[0-9a-f]+$":
63 $ref: snps,dwc3.yaml#
64 description: Required child node
65
66 required:
67 - compatible
68 - reg
69 - power-domains
70 - clocks
71 - clock-names
72 - ti,syscon-phy-pll-refclk
73
74 additionalProperties: false
75
76 examples:
77 - |
78 #include <dt-bindings/soc/ti,sci_pm_domain.h>
79 #include <dt-bindings/interrupt-controller/arm-gic.h>
80 #include <dt-bindings/gpio/gpio.h>
81
82 bus {
83 #address-cells = <2>;
84 #size-cells = <2>;
85
86 usbss1: usb@f910000 {
87 compatible = "ti,am62-usb";
88 reg = <0x00 0x0f910000 0x00 0x800>,
89 <0x00 0x0f918000 0x00 0x400>;
90 clocks = <&k3_clks 162 3>;
91 clock-names = "ref";
92 ti,syscon-phy-pll-refclk = <&wkup_conf 0x4018>;
93 power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>;
94 #address-cells = <2>;
95 #size-cells = <2>;
96
97 usb@31100000 {
98 compatible = "snps,dwc3";
99 reg = <0x00 0x31100000 0x00 0x50000>;
100 interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */
101 <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>; /* irq.0 */
102 interrupt-names = "host", "peripheral";
103 maximum-speed = "high-speed";
104 dr_mode = "otg";
105 };
106 };
107 };
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