1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/usb/generic-ehci.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: USB EHCI Controller Device Tree Bindings
8
9maintainers:
10  - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11
12allOf:
13  - $ref: "usb-hcd.yaml"
14  - if:
15      properties:
16        compatible:
17          not:
18            contains:
19              const: ibm,usb-ehci-440epx
20    then:
21      properties:
22        reg:
23          maxItems: 1
24
25properties:
26  compatible:
27    oneOf:
28      - items:
29          - enum:
30              - allwinner,sun4i-a10-ehci
31              - allwinner,sun50i-a64-ehci
32              - allwinner,sun50i-h6-ehci
33              - allwinner,sun5i-a13-ehci
34              - allwinner,sun6i-a31-ehci
35              - allwinner,sun7i-a20-ehci
36              - allwinner,sun8i-a23-ehci
37              - allwinner,sun8i-a83t-ehci
38              - allwinner,sun8i-h3-ehci
39              - allwinner,sun8i-r40-ehci
40              - allwinner,sun9i-a80-ehci
41              - allwinner,sun20i-d1-ehci
42              - aspeed,ast2400-ehci
43              - aspeed,ast2500-ehci
44              - aspeed,ast2600-ehci
45              - brcm,bcm3384-ehci
46              - brcm,bcm63268-ehci
47              - brcm,bcm6328-ehci
48              - brcm,bcm6358-ehci
49              - brcm,bcm6362-ehci
50              - brcm,bcm6368-ehci
51              - brcm,bcm7125-ehci
52              - brcm,bcm7346-ehci
53              - brcm,bcm7358-ehci
54              - brcm,bcm7360-ehci
55              - brcm,bcm7362-ehci
56              - brcm,bcm7420-ehci
57              - brcm,bcm7425-ehci
58              - brcm,bcm7435-ehci
59              - hpe,gxp-ehci
60              - ibm,476gtr-ehci
61              - nxp,lpc1850-ehci
62              - qca,ar7100-ehci
63              - snps,hsdk-v1.0-ehci
64              - socionext,uniphier-ehci
65          - const: generic-ehci
66      - items:
67          - enum:
68              - cavium,octeon-6335-ehci
69              - ibm,usb-ehci-440epx
70              - ibm,usb-ehci-460ex
71              - nintendo,hollywood-usb-ehci
72              - st,spear600-ehci
73          - const: usb-ehci
74      - enum:
75          - generic-ehci
76          - usb-ehci
77
78  reg:
79    minItems: 1
80    maxItems: 2
81
82  interrupts:
83    maxItems: 1
84
85  resets:
86    minItems: 1
87    maxItems: 4
88
89  clocks:
90    minItems: 1
91    maxItems: 4
92    description: |
93      In case the Renesas R-Car Gen3 SoCs:
94        - if a host only channel: first clock should be host.
95        - if a USB DRD channel: first clock should be host and second
96          one should be peripheral
97
98  power-domains:
99    maxItems: 1
100
101  big-endian:
102    $ref: /schemas/types.yaml#/definitions/flag
103    description:
104      Set this flag for HCDs with big endian descriptors and big
105      endian registers.
106
107  big-endian-desc:
108    $ref: /schemas/types.yaml#/definitions/flag
109    description:
110      Set this flag for HCDs with big endian descriptors.
111
112  big-endian-regs:
113    $ref: /schemas/types.yaml#/definitions/flag
114    description:
115      Set this flag for HCDs with big endian registers.
116
117  has-transaction-translator:
118    $ref: /schemas/types.yaml#/definitions/flag
119    description:
120      Set this flag if EHCI has a Transaction Translator built into
121      the root hub.
122
123  needs-reset-on-resume:
124    $ref: /schemas/types.yaml#/definitions/flag
125    description:
126      Set this flag to force EHCI reset after resume.
127
128  spurious-oc:
129    $ref: /schemas/types.yaml#/definitions/flag
130    description:
131      Set this flag to indicate that the hardware sometimes turns on
132      the OC bit when an over-current isn't actually present.
133
134  companion:
135    $ref: /schemas/types.yaml#/definitions/phandle
136    description:
137      Phandle of a companion.
138
139  phys:
140    maxItems: 1
141
142  phy-names:
143    const: usb
144
145  iommus:
146    maxItems: 1
147
148  dr_mode:
149    enum:
150      - host
151      - otg
152
153required:
154  - compatible
155  - reg
156  - interrupts
157
158additionalProperties: false
159
160examples:
161  - |
162    usb@e0000300 {
163        compatible = "ibm,usb-ehci-440epx", "usb-ehci";
164        interrupt-parent = <&UIC0>;
165        interrupts = <0x1a 4>;
166        reg = <0xe0000300 90>, <0xe0000390 70>;
167        big-endian;
168    };
169
170  - |
171    ehci0: usb@1c14000 {
172        compatible = "allwinner,sun4i-a10-ehci", "generic-ehci";
173        reg = <0x01c14000 0x100>;
174        interrupts = <39>;
175        clocks = <&ahb_gates 1>;
176        phys = <&usbphy 1>;
177        phy-names = "usb";
178    };
179
180...
181