1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/usb/ti,j721e-usb.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: TI wrapper module for the Cadence USBSS-DRD controller
8
9 maintainers:
10 - Roger Quadros <rogerq@kernel.org>
11
12 properties:
13 compatible:
14 oneOf:
15 - const: ti,j721e-usb
16 - items:
17 - const: ti,am64-usb
18 - const: ti,j721e-usb
19
20 reg:
21 maxItems: 1
22
23 ranges: true
24
25 power-domains:
26 description:
27 PM domain provider node and an args specifier containing
28 the USB device id value. See,
29 Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
30 maxItems: 1
31
32 clocks:
33 description: Clock phandles to usb2_refclk and lpm_clk
34 minItems: 2
35 maxItems: 2
36
37 clock-names:
38 items:
39 - const: ref
40 - const: lpm
41
42 ti,usb2-only:
43 description:
44 If present, it restricts the controller to USB2.0 mode of
45 operation. Must be present if USB3 PHY is not available
46 for USB.
47 type: boolean
48
49 ti,vbus-divider:
50 description:
51 Should be present if USB VBUS line is connected to the
52 VBUS pin of the SoC via a 1/3 voltage divider.
53 type: boolean
54
55 '#address-cells':
56 const: 2
57
58 '#size-cells':
59 const: 2
60
61 dma-coherent: true
62
63 patternProperties:
64 "^usb@":
65 type: object
66
67 required:
68 - compatible
69 - reg
70 - power-domains
71 - clocks
72 - clock-names
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
81 bus {
82 #address-cells = <2>;
83 #size-cells = <2>;
84
85 cdns_usb@4104000 {
86 compatible = "ti,j721e-usb";
87 reg = <0x00 0x4104000 0x00 0x100>;
88 power-domains = <&k3_pds 288 TI_SCI_PD_EXCLUSIVE>;
89 clocks = <&k3_clks 288 15>, <&k3_clks 288 3>;
90 clock-names = "ref", "lpm";
91 assigned-clocks = <&k3_clks 288 15>; /* USB2_REFCLK */
92 assigned-clock-parents = <&k3_clks 288 16>; /* HFOSC0 */
93 #address-cells = <2>;
94 #size-cells = <2>;
95
96 usb@6000000 {
97 compatible = "cdns,usb3";
98 reg = <0x00 0x6000000 0x00 0x10000>,
99 <0x00 0x6010000 0x00 0x10000>,
100 <0x00 0x6020000 0x00 0x10000>;
101 reg-names = "otg", "xhci", "dev";
102 interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */
103 <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>, /* irq.6 */
104 <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>; /* otgirq.0 */
105 interrupt-names = "host",
106 "peripheral",
107 "otg";
108 maximum-speed = "super-speed";
109 dr_mode = "otg";
110 };
111 };
112 };
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