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