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          - ti,ehci-omap
78          - usb-ehci
79
80  reg:
81    minItems: 1
82    maxItems: 2
83
84  interrupts:
85    maxItems: 1
86
87  resets:
88    minItems: 1
89    maxItems: 4
90
91  clocks:
92    minItems: 1
93    maxItems: 4
94    description: |
95      In case the Renesas R-Car Gen3 SoCs:
96        - if a host only channel: first clock should be host.
97        - if a USB DRD channel: first clock should be host and second
98          one should be peripheral
99
100  power-domains:
101    maxItems: 1
102
103  big-endian:
104    $ref: /schemas/types.yaml#/definitions/flag
105    description:
106      Set this flag for HCDs with big endian descriptors and big
107      endian registers.
108
109  big-endian-desc:
110    $ref: /schemas/types.yaml#/definitions/flag
111    description:
112      Set this flag for HCDs with big endian descriptors.
113
114  big-endian-regs:
115    $ref: /schemas/types.yaml#/definitions/flag
116    description:
117      Set this flag for HCDs with big endian registers.
118
119  has-transaction-translator:
120    $ref: /schemas/types.yaml#/definitions/flag
121    description:
122      Set this flag if EHCI has a Transaction Translator built into
123      the root hub.
124
125  needs-reset-on-resume:
126    $ref: /schemas/types.yaml#/definitions/flag
127    description:
128      Set this flag to force EHCI reset after resume.
129
130  spurious-oc:
131    $ref: /schemas/types.yaml#/definitions/flag
132    description:
133      Set this flag to indicate that the hardware sometimes turns on
134      the OC bit when an over-current isn't actually present.
135
136  phys:
137    minItems: 1
138    maxItems: 3
139
140  phy-names:
141    const: usb
142
143  iommus:
144    maxItems: 1
145
146  dr_mode:
147    enum:
148      - host
149      - otg
150
151required:
152  - compatible
153  - reg
154  - interrupts
155
156unevaluatedProperties: false
157
158examples:
159  - |
160    usb@e0000300 {
161        compatible = "ibm,usb-ehci-440epx", "usb-ehci";
162        interrupt-parent = <&UIC0>;
163        interrupts = <0x1a 4>;
164        reg = <0xe0000300 90>, <0xe0000390 70>;
165        big-endian;
166    };
167
168  - |
169    ehci0: usb@1c14000 {
170        compatible = "allwinner,sun4i-a10-ehci", "generic-ehci";
171        reg = <0x01c14000 0x100>;
172        interrupts = <39>;
173        clocks = <&ahb_gates 1>;
174        phys = <&usbphy 1>;
175        phy-names = "usb";
176    };
177
178...
179