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,sun8i-v3s-ehci
42              - allwinner,sun9i-a80-ehci
43              - allwinner,sun20i-d1-ehci
44              - aspeed,ast2400-ehci
45              - aspeed,ast2500-ehci
46              - aspeed,ast2600-ehci
47              - brcm,bcm3384-ehci
48              - brcm,bcm63268-ehci
49              - brcm,bcm6328-ehci
50              - brcm,bcm6358-ehci
51              - brcm,bcm6362-ehci
52              - brcm,bcm6368-ehci
53              - brcm,bcm7125-ehci
54              - brcm,bcm7346-ehci
55              - brcm,bcm7358-ehci
56              - brcm,bcm7360-ehci
57              - brcm,bcm7362-ehci
58              - brcm,bcm7420-ehci
59              - brcm,bcm7425-ehci
60              - brcm,bcm7435-ehci
61              - hpe,gxp-ehci
62              - ibm,476gtr-ehci
63              - nxp,lpc1850-ehci
64              - qca,ar7100-ehci
65              - rockchip,rk3588-ehci
66              - snps,hsdk-v1.0-ehci
67              - socionext,uniphier-ehci
68          - const: generic-ehci
69      - items:
70          - enum:
71              - cavium,octeon-6335-ehci
72              - ibm,usb-ehci-440epx
73              - ibm,usb-ehci-460ex
74              - nintendo,hollywood-usb-ehci
75              - st,spear600-ehci
76          - const: usb-ehci
77      - enum:
78          - generic-ehci
79          - marvell,armada-3700-ehci
80          - marvell,orion-ehci
81          - nuvoton,npcm750-ehci
82          - nuvoton,npcm845-ehci
83          - ti,ehci-omap
84          - usb-ehci
85
86  reg:
87    minItems: 1
88    maxItems: 2
89
90  interrupts:
91    maxItems: 1
92
93  resets:
94    minItems: 1
95    maxItems: 4
96
97  clocks:
98    minItems: 1
99    maxItems: 4
100    description: |
101      In case the Renesas R-Car Gen3 SoCs:
102        - if a host only channel: first clock should be host.
103        - if a USB DRD channel: first clock should be host and second
104          one should be peripheral
105
106  power-domains:
107    maxItems: 1
108
109  big-endian:
110    $ref: /schemas/types.yaml#/definitions/flag
111    description:
112      Set this flag for HCDs with big endian descriptors and big
113      endian registers.
114
115  big-endian-desc:
116    $ref: /schemas/types.yaml#/definitions/flag
117    description:
118      Set this flag for HCDs with big endian descriptors.
119
120  big-endian-regs:
121    $ref: /schemas/types.yaml#/definitions/flag
122    description:
123      Set this flag for HCDs with big endian registers.
124
125  has-transaction-translator:
126    $ref: /schemas/types.yaml#/definitions/flag
127    description:
128      Set this flag if EHCI has a Transaction Translator built into
129      the root hub.
130
131  needs-reset-on-resume:
132    $ref: /schemas/types.yaml#/definitions/flag
133    description:
134      Set this flag to force EHCI reset after resume.
135
136  spurious-oc:
137    $ref: /schemas/types.yaml#/definitions/flag
138    description:
139      Set this flag to indicate that the hardware sometimes turns on
140      the OC bit when an over-current isn't actually present.
141
142  phys:
143    minItems: 1
144    maxItems: 3
145
146  phy-names:
147    const: usb
148
149  iommus:
150    maxItems: 1
151
152  dr_mode:
153    enum:
154      - host
155      - otg
156
157required:
158  - compatible
159  - reg
160  - interrupts
161
162unevaluatedProperties: false
163
164examples:
165  - |
166    usb@e0000300 {
167        compatible = "ibm,usb-ehci-440epx", "usb-ehci";
168        interrupt-parent = <&UIC0>;
169        interrupts = <0x1a 4>;
170        reg = <0xe0000300 90>, <0xe0000390 70>;
171        big-endian;
172    };
173
174  - |
175    ehci0: usb@1c14000 {
176        compatible = "allwinner,sun4i-a10-ehci", "generic-ehci";
177        reg = <0x01c14000 0x100>;
178        interrupts = <39>;
179        clocks = <&ahb_gates 1>;
180        phys = <&usbphy 1>;
181        phy-names = "usb";
182    };
183
184...
185