tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2# Copyright (c) 2020 NXP
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/usb/fsl,imx8mp-dwc3.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: NXP iMX8MP Soc USB Controller
9
10maintainers:
11 - Li Jun <jun.li@nxp.com>
12
13properties:
14 compatible:
15 const: fsl,imx8mp-dwc3
16
17 reg:
18 maxItems: 1
19 description: Address and length of the register set for the wrapper of
20 dwc3 core on the SOC.
21
22 "#address-cells":
23 enum: [ 1, 2 ]
24
25 "#size-cells":
26 enum: [ 1, 2 ]
27
28 dma-ranges:
29 description:
30 See section 2.3.9 of the DeviceTree Specification.
31
32 ranges: true
33
34 interrupts:
35 maxItems: 1
36 description: The interrupt that is asserted when a wakeup event is
37 received.
38
39 clocks:
40 description:
41 A list of phandle and clock-specifier pairs for the clocks
42 listed in clock-names.
43 items:
44 - description: system hsio root clock.
45 - description: suspend clock, used for usb wakeup logic.
46
47 clock-names:
48 items:
49 - const: hsio
50 - const: suspend
51
52# Required child node:
53
54patternProperties:
55 "^usb@[0-9a-f]+$":
56 $ref: snps,dwc3.yaml#
57
58required:
59 - compatible
60 - reg
61 - "#address-cells"
62 - "#size-cells"
63 - dma-ranges
64 - ranges
65 - clocks
66 - clock-names
67 - interrupts
68
69additionalProperties: false
70
71examples:
72 - |
73 #include <dt-bindings/clock/imx8mp-clock.h>
74 #include <dt-bindings/interrupt-controller/arm-gic.h>
75 usb3_0: usb@32f10100 {
76 compatible = "fsl,imx8mp-dwc3";
77 reg = <0x32f10100 0x8>;
78 clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
79 <&clk IMX8MP_CLK_USB_ROOT>;
80 clock-names = "hsio", "suspend";
81 interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
82 #address-cells = <1>;
83 #size-cells = <1>;
84 dma-ranges = <0x40000000 0x40000000 0xc0000000>;
85 ranges;
86
87 usb@38100000 {
88 compatible = "snps,dwc3";
89 reg = <0x38100000 0x10000>;
90 clocks = <&clk IMX8MP_CLK_HSIO_AXI>,
91 <&clk IMX8MP_CLK_USB_CORE_REF>,
92 <&clk IMX8MP_CLK_USB_ROOT>;
93 clock-names = "bus_early", "ref", "suspend";
94 assigned-clocks = <&clk IMX8MP_CLK_HSIO_AXI>;
95 assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_500M>;
96 assigned-clock-rates = <500000000>;
97 interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
98 phys = <&usb3_phy0>, <&usb3_phy0>;
99 phy-names = "usb2-phy", "usb3-phy";
100 snps,dis-u2-freeclk-exists-quirk;
101 };
102 };