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 9allOf: 10 - $ref: "usb-hcd.yaml" 11 12maintainers: 13 - Greg Kroah-Hartman <gregkh@linuxfoundation.org> 14 15properties: 16 compatible: 17 contains: 18 const: generic-ehci 19 20 reg: 21 maxItems: 1 22 23 interrupts: 24 maxItems: 1 25 26 resets: 27 minItems: 1 28 maxItems: 4 29 30 clocks: 31 minItems: 1 32 maxItems: 4 33 description: | 34 In case the Renesas R-Car Gen3 SoCs: 35 - if a host only channel: first clock should be host. 36 - if a USB DRD channel: first clock should be host and second 37 one should be peripheral 38 39 big-endian: 40 $ref: /schemas/types.yaml#/definitions/flag 41 description: 42 Set this flag for HCDs with big endian descriptors and big 43 endian registers. 44 45 big-endian-desc: 46 $ref: /schemas/types.yaml#/definitions/flag 47 description: 48 Set this flag for HCDs with big endian descriptors. 49 50 big-endian-regs: 51 $ref: /schemas/types.yaml#/definitions/flag 52 description: 53 Set this flag for HCDs with big endian registers. 54 55 has-transaction-translator: 56 $ref: /schemas/types.yaml#/definitions/flag 57 description: 58 Set this flag if EHCI has a Transaction Translator built into 59 the root hub. 60 61 needs-reset-on-resume: 62 $ref: /schemas/types.yaml#/definitions/flag 63 description: 64 Set this flag to force EHCI reset after resume. 65 66 companion: 67 $ref: /schemas/types.yaml#/definitions/phandle 68 description: 69 Phandle of a companion. 70 71 phys: true 72 73required: 74 - compatible 75 - reg 76 - interrupts 77 78additionalProperties: false 79 80examples: 81 - | 82 usb@e0000300 { 83 compatible = "ibm,usb-ehci-440epx", "generic-ehci"; 84 interrupt-parent = <&UIC0>; 85 interrupts = <0x1a 4>; 86 reg = <0 0xe0000300 90 0 0xe0000390 70>; 87 big-endian; 88 }; 89 90 - | 91 ehci0: usb@1c14000 { 92 compatible = "allwinner,sun4i-a10-ehci", "generic-ehci"; 93 reg = <0x01c14000 0x100>; 94 interrupts = <39>; 95 clocks = <&ahb_gates 1>; 96 phys = <&usbphy 1>; 97 }; 98 99... 100