linux/Documentation/devicetree/bindings/usb/ehci-orion.txt
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   1* EHCI controller, Orion Marvell variants
   2
   3Required properties:
   4- compatible: must be "marvell,orion-ehci"
   5- reg: physical base address of the controller and length of memory mapped
   6  region.
   7- interrupts: The EHCI interrupt
   8
   9Example:
  10
  11        ehci@50000 {
  12                compatible = "marvell,orion-ehci";
  13                reg = <0x50000 0x1000>;
  14                interrupts = <19>;
  15        };
  16