xref: /linux/Documentation/devicetree/bindings/usb/nvidia,tegra234-xusb.yaml (revision 34dc1baba215b826e454b8d19e4f24adbeb7d00d) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/usb/nvidia,tegra234-xusb.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NVIDIA Tegra234 xHCI controller
8
9maintainers:
10  - Thierry Reding <thierry.reding@gmail.com>
11  - Jon Hunter <jonathanh@nvidia.com>
12
13description: |
14  The Tegra xHCI controller supports both USB2 and USB3 interfaces exposed by
15  the Tegra XUSB pad controller. The xHCI controller controls up to eight
16  ports; there are four USB 2.0 ports and four USB 3.2 Gen1 x1 ports.
17
18properties:
19  compatible:
20    const: nvidia,tegra234-xusb
21
22  reg:
23    items:
24      - description: xHCI host registers
25      - description: XUSB FPCI registers
26      - description: XUSB bar2 registers
27
28  reg-names:
29    items:
30      - const: hcd
31      - const: fpci
32      - const: bar2
33
34  interrupts:
35    items:
36      - description: xHCI host interrupt
37      - description: mailbox interrupt
38
39  clocks:
40    items:
41      - description: XUSB host clock
42      - description: XUSB Falcon source clock
43      - description: XUSB SuperSpeed clock
44      - description: XUSB SuperSpeed source clock
45      - description: XUSB HighSpeed clock source
46      - description: XUSB FullSpeed clock source
47      - description: USB PLL
48      - description: reference clock
49      - description: I/O PLL
50
51  clock-names:
52    items:
53      - const: xusb_host
54      - const: xusb_falcon_src
55      - const: xusb_ss
56      - const: xusb_ss_src
57      - const: xusb_hs_src
58      - const: xusb_fs_src
59      - const: pll_u_480m
60      - const: clk_m
61      - const: pll_e
62
63  interconnects:
64    items:
65      - description: read client
66      - description: write client
67
68  interconnect-names:
69    items:
70      - const: dma-mem # read
71      - const: write
72
73  iommus:
74    maxItems: 1
75
76  nvidia,xusb-padctl:
77    $ref: /schemas/types.yaml#/definitions/phandle
78    description: phandle to the XUSB pad controller that is used to configure
79      the USB pads used by the XHCI controller
80
81  phys:
82    minItems: 1
83    maxItems: 8
84
85  phy-names:
86    minItems: 1
87    maxItems: 8
88    items:
89      enum:
90        - usb2-0
91        - usb2-1
92        - usb2-2
93        - usb2-3
94        - usb3-0
95        - usb3-1
96        - usb3-2
97        - usb3-3
98
99  power-domains:
100    items:
101      - description: XUSBC power domain (for Host and USB 2.0)
102      - description: XUSBA power domain (for SuperSpeed)
103
104  power-domain-names:
105    items:
106      - const: xusb_host
107      - const: xusb_ss
108
109  dma-coherent: true
110
111allOf:
112  - $ref: usb-xhci.yaml
113
114unevaluatedProperties: false
115
116examples:
117  - |
118    #include <dt-bindings/clock/tegra234-clock.h>
119    #include <dt-bindings/interrupt-controller/arm-gic.h>
120    #include <dt-bindings/memory/tegra234-mc.h>
121    #include <dt-bindings/power/tegra234-powergate.h>
122
123    usb@3610000 {
124        compatible = "nvidia,tegra234-xusb";
125        reg = <0x03610000 0x40000>,
126              <0x03600000 0x10000>,
127              <0x03650000 0x10000>;
128        reg-names = "hcd", "fpci", "bar2";
129
130        interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
131                     <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
132
133        clocks = <&bpmp TEGRA234_CLK_XUSB_CORE_HOST>,
134                 <&bpmp TEGRA234_CLK_XUSB_FALCON>,
135                 <&bpmp TEGRA234_CLK_XUSB_CORE_SS>,
136                 <&bpmp TEGRA234_CLK_XUSB_SS>,
137                 <&bpmp TEGRA234_CLK_CLK_M>,
138                 <&bpmp TEGRA234_CLK_XUSB_FS>,
139                 <&bpmp TEGRA234_CLK_UTMIP_PLL>,
140                 <&bpmp TEGRA234_CLK_CLK_M>,
141                 <&bpmp TEGRA234_CLK_PLLE>;
142        clock-names = "xusb_host", "xusb_falcon_src",
143                      "xusb_ss", "xusb_ss_src", "xusb_hs_src",
144                      "xusb_fs_src", "pll_u_480m", "clk_m",
145                      "pll_e";
146        interconnects = <&mc TEGRA234_MEMORY_CLIENT_XUSB_HOSTR &emc>,
147                        <&mc TEGRA234_MEMORY_CLIENT_XUSB_HOSTW &emc>;
148        interconnect-names = "dma-mem", "write";
149        iommus = <&smmu_niso1 TEGRA234_SID_XUSB_HOST>;
150
151        power-domains = <&bpmp TEGRA234_POWER_DOMAIN_XUSBC>,
152                        <&bpmp TEGRA234_POWER_DOMAIN_XUSBA>;
153        power-domain-names = "xusb_host", "xusb_ss";
154
155        nvidia,xusb-padctl = <&xusb_padctl>;
156
157        phys = <&pad_lanes_usb2_0>;
158        phy-names = "usb2-0";
159    };
160