Quelle  uctl.txt

* UCTL USB controller glue

Properties:
- compatible: "cavium,octeon-6335-uctl"

  Compatibility with all cn6XXX SOCs.

- reg: The base address of the UCTL register bank.

- #address-cells: Must be <2>.

- #size-cells: Must be <2>.

- ranges: Empty to signify direct mapping of the children.

- refclk-frequency: A single cell containing the reference clock
  frequency in Hz.

- refclk-type: A string describing the reference clock connection
  either "crystal" or "external".

Example:
 uctl@118006f000000 {
  compatible = "cavium,octeon-6335-uctl";
  reg = <0x11800 0x6f000000 0x0 0x100>;
  ranges; /* Direct mapping */
  #address-cells = <2>;
  #size-cells = <2>;
  /* 12MHz, 24MHz and 48MHz allowed */
  refclk-frequency = <24000000>;
  /* Either "crystal" or "external" */
  refclk-type = "crystal";

  ehci@16f0000000000 {
   compatible = "cavium,octeon-6335-ehci","usb-ehci";
   reg = <0x16f00 0x00000000 0x0 0x100>;
   interrupts = <0 56>;
   big-endian-regs;
  };
  ohci@16f0000000400 {
   compatible = "cavium,octeon-6335-ohci","usb-ohci";
   reg = <0x16f00 0x00000400 0x0 0x100>;
   interrupts = <0 56>;
   big-endian-regs;
  };
 };