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