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
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,sun50i-h616-ehci
34              - allwinner,sun5i-a13-ehci
35              - allwinner,sun6i-a31-ehci
36              - allwinner,sun7i-a20-ehci
37              - allwinner,sun8i-a23-ehci
38              - allwinner,sun8i-a83t-ehci
39              - allwinner,sun8i-h3-ehci
40              - allwinner,sun8i-r40-ehci
41              - allwinner,sun9i-a80-ehci
42              - allwinner,sun20i-d1-ehci
43              - aspeed,ast2400-ehci
44              - aspeed,ast2500-ehci
45              - aspeed,ast2600-ehci
46              - brcm,bcm3384-ehci
47              - brcm,bcm63268-ehci
48              - brcm,bcm6328-ehci
49              - brcm,bcm6358-ehci
50              - brcm,bcm6362-ehci
51              - brcm,bcm6368-ehci
52              - brcm,bcm7125-ehci
53              - brcm,bcm7346-ehci
54              - brcm,bcm7358-ehci
55              - brcm,bcm7360-ehci
56              - brcm,bcm7362-ehci
57              - brcm,bcm7420-ehci
58              - brcm,bcm7425-ehci
59              - brcm,bcm7435-ehci
60              - hpe,gxp-ehci
61              - ibm,476gtr-ehci
62              - nxp,lpc1850-ehci
63              - qca,ar7100-ehci
64              - snps,hsdk-v1.0-ehci
65              - socionext,uniphier-ehci
66          - const: generic-ehci
67      - items:
68          - enum:
69              - cavium,octeon-6335-ehci
70              - ibm,usb-ehci-440epx
71              - ibm,usb-ehci-460ex
72              - nintendo,hollywood-usb-ehci
73              - st,spear600-ehci
74          - const: usb-ehci
75      - enum:
76          - generic-ehci
77          - marvell,armada-3700-ehci
78          - marvell,orion-ehci
79          - ti,ehci-omap
80          - usb-ehci
81
82  reg:
83    minItems: 1
84    maxItems: 2
85
86  interrupts:
87    maxItems: 1
88
89  resets:
90    minItems: 1
91    maxItems: 4
92
93  clocks:
94    minItems: 1
95    maxItems: 4
96    description: |
97      In case the Renesas R-Car Gen3 SoCs:
98        - if a host only channel: first clock should be host.
99        - if a USB DRD channel: first clock should be host and second
100          one should be peripheral
101
102  power-domains:
103    maxItems: 1
104
105  big-endian:
106    $ref: /schemas/types.yaml#/definitions/flag
107    description:
108      Set this flag for HCDs with big endian descriptors and big
109      endian registers.
110
111  big-endian-desc:
112    $ref: /schemas/types.yaml#/definitions/flag
113    description:
114      Set this flag for HCDs with big endian descriptors.
115
116  big-endian-regs:
117    $ref: /schemas/types.yaml#/definitions/flag
118    description:
119      Set this flag for HCDs with big endian registers.
120
121  has-transaction-translator:
122    $ref: /schemas/types.yaml#/definitions/flag
123    description:
124      Set this flag if EHCI has a Transaction Translator built into
125      the root hub.
126
127  needs-reset-on-resume:
128    $ref: /schemas/types.yaml#/definitions/flag
129    description:
130      Set this flag to force EHCI reset after resume.
131
132  spurious-oc:
133    $ref: /schemas/types.yaml#/definitions/flag
134    description:
135      Set this flag to indicate that the hardware sometimes turns on
136      the OC bit when an over-current isn't actually present.
137
138  phys:
139    minItems: 1
140    maxItems: 3
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
158unevaluatedProperties: 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