Documentation/devicetree/bindings/usb/generic-ehci.yaml

   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
   7 title: USB EHCI Controller Device Tree Bindings
   8
   9 maintainers:
  10   - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  11
  12 allOf:
  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
  25 properties:
  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,sun5i-a13-ehci
  34               - allwinner,sun6i-a31-ehci
  35               - allwinner,sun7i-a20-ehci
  36               - allwinner,sun8i-a23-ehci
  37               - allwinner,sun8i-a83t-ehci
  38               - allwinner,sun8i-h3-ehci
  39               - allwinner,sun8i-r40-ehci
  40               - allwinner,sun9i-a80-ehci
  41               - aspeed,ast2400-ehci
  42               - aspeed,ast2500-ehci
  43               - aspeed,ast2600-ehci
  44               - brcm,bcm3384-ehci
  45               - brcm,bcm63268-ehci
  46               - brcm,bcm6328-ehci
  47               - brcm,bcm6358-ehci
  48               - brcm,bcm6362-ehci
  49               - brcm,bcm6368-ehci
  50               - brcm,bcm7125-ehci
  51               - brcm,bcm7346-ehci
  52               - brcm,bcm7358-ehci
  53               - brcm,bcm7360-ehci
  54               - brcm,bcm7362-ehci
  55               - brcm,bcm7420-ehci
  56               - brcm,bcm7425-ehci
  57               - brcm,bcm7435-ehci
  58               - ibm,476gtr-ehci
  59               - nxp,lpc1850-ehci
  60               - qca,ar7100-ehci
  61               - snps,hsdk-v1.0-ehci
  62               - socionext,uniphier-ehci
  63           - const: generic-ehci
  64       - items:
  65           - enum:
  66               - cavium,octeon-6335-ehci
  67               - ibm,usb-ehci-440epx
  68               - ibm,usb-ehci-460ex
  69               - nintendo,hollywood-usb-ehci
  70               - st,spear600-ehci
  71           - const: usb-ehci
  72       - enum:
  73           - generic-ehci
  74           - usb-ehci
  75
  76   reg:
  77     minItems: 1
  78     maxItems: 2
  79
  80   interrupts:
  81     maxItems: 1
  82
  83   resets:
  84     minItems: 1
  85     maxItems: 4
  86
  87   clocks:
  88     minItems: 1
  89     maxItems: 4
  90     description: |
  91       In case the Renesas R-Car Gen3 SoCs:
  92         - if a host only channel: first clock should be host.
  93         - if a USB DRD channel: first clock should be host and second
  94           one should be peripheral
  95
  96   power-domains:
  97     maxItems: 1
  98
  99   big-endian:
 100     $ref: /schemas/types.yaml#/definitions/flag
 101     description:
 102       Set this flag for HCDs with big endian descriptors and big
 103       endian registers.
 104
 105   big-endian-desc:
 106     $ref: /schemas/types.yaml#/definitions/flag
 107     description:
 108       Set this flag for HCDs with big endian descriptors.
 109
 110   big-endian-regs:
 111     $ref: /schemas/types.yaml#/definitions/flag
 112     description:
 113       Set this flag for HCDs with big endian registers.
 114
 115   has-transaction-translator:
 116     $ref: /schemas/types.yaml#/definitions/flag
 117     description:
 118       Set this flag if EHCI has a Transaction Translator built into
 119       the root hub.
 120
 121   needs-reset-on-resume:
 122     $ref: /schemas/types.yaml#/definitions/flag
 123     description:
 124       Set this flag to force EHCI reset after resume.
 125
 126   spurious-oc:
 127     $ref: /schemas/types.yaml#/definitions/flag
 128     description:
 129       Set this flag to indicate that the hardware sometimes turns on
 130       the OC bit when an over-current isn't actually present.
 131
 132   companion:
 133     $ref: /schemas/types.yaml#/definitions/phandle
 134     description:
 135       Phandle of a companion.
 136
 137   phys:
 138     maxItems: 1
 139
 140   phy-names:
 141     const: usb
 142
 143   iommus:
 144     maxItems: 1
 145
 146   dr_mode:
 147     enum:
 148       - host
 149       - otg
 150
 151 required:
 152   - compatible
 153   - reg
 154   - interrupts
 155
 156 additionalProperties: false
 157
 158 examples:
 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 ...