linux/Documentation/devicetree/bindings/usb/vt8500-ehci.txt
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Prefs
   1VIA VT8500 and Wondermedia WM8xxx SoC USB controllers.
   2
   3Required properties:
   4 - compatible: Should be "via,vt8500-ehci" or "wm,prizm-ehci".
   5 - reg: Address range of the ehci registers. size should be 0x200
   6 - interrupts: Should contain the ehci interrupt.
   7
   8usb: ehci@D8007100 {
   9        compatible = "wm,prizm-ehci", "usb-ehci";
  10        reg = <0xD8007100 0x200>;
  11        interrupts = <1>;
  12};
  13