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              - atmel,at91sam9g45-ehci
72              - cavium,octeon-6335-ehci
73              - ibm,usb-ehci-440epx
74              - ibm,usb-ehci-460ex
75              - nintendo,hollywood-usb-ehci
76              - st,spear600-ehci
77          - const: usb-ehci
78      - enum:
79          - generic-ehci
80          - marvell,armada-3700-ehci
81          - marvell,orion-ehci
82          - nuvoton,npcm750-ehci
83          - nuvoton,npcm845-ehci
84          - ti,ehci-omap
85          - usb-ehci
86
87  reg:
88    minItems: 1
89    maxItems: 2
90
91  interrupts:
92    maxItems: 1
93
94  resets:
95    minItems: 1
96    maxItems: 4
97
98  clocks:
99    minItems: 1
100    maxItems: 4
101    description: |
102      In case the Renesas R-Car Gen3 SoCs:
103        - if a host only channel: first clock should be host.
104        - if a USB DRD channel: first clock should be host and second
105          one should be peripheral
106
107  power-domains:
108    maxItems: 1
109
110  big-endian:
111    $ref: /schemas/types.yaml#/definitions/flag
112    description:
113      Set this flag for HCDs with big endian descriptors and big
114      endian registers.
115
116  big-endian-desc:
117    $ref: /schemas/types.yaml#/definitions/flag
118    description:
119      Set this flag for HCDs with big endian descriptors.
120
121  big-endian-regs:
122    $ref: /schemas/types.yaml#/definitions/flag
123    description:
124      Set this flag for HCDs with big endian registers.
125
126  has-transaction-translator:
127    $ref: /schemas/types.yaml#/definitions/flag
128    description:
129      Set this flag if EHCI has a Transaction Translator built into
130      the root hub.
131
132  needs-reset-on-resume:
133    $ref: /schemas/types.yaml#/definitions/flag
134    description:
135      Set this flag to force EHCI reset after resume.
136
137  spurious-oc:
138    $ref: /schemas/types.yaml#/definitions/flag
139    description:
140      Set this flag to indicate that the hardware sometimes turns on
141      the OC bit when an over-current isn't actually present.
142
143  phys:
144    minItems: 1
145    maxItems: 3
146
147  phy-names:
148    const: usb
149
150  iommus:
151    maxItems: 1
152
153  dr_mode:
154    enum:
155      - host
156      - otg
157
158required:
159  - compatible
160  - reg
161  - interrupts
162
163unevaluatedProperties: false
164
165examples:
166  - |
167    usb@e0000300 {
168        compatible = "ibm,usb-ehci-440epx", "usb-ehci";
169        interrupt-parent = <&UIC0>;
170        interrupts = <0x1a 4>;
171        reg = <0xe0000300 90>, <0xe0000390 70>;
172        big-endian;
173    };
174
175  - |
176    ehci0: usb@1c14000 {
177        compatible = "allwinner,sun4i-a10-ehci", "generic-ehci";
178        reg = <0x01c14000 0x100>;
179        interrupts = <39>;
180        clocks = <&ahb_gates 1>;
181        phys = <&usbphy 1>;
182        phy-names = "usb";
183    };
184
185...
186