linux/Documentation/devicetree/bindings/serial/cavium-uart.txt
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   1* Universal Asynchronous Receiver/Transmitter (UART)
   2
   3- compatible: "cavium,octeon-3860-uart"
   4
   5  Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
   6
   7- reg: The base address of the UART register bank.
   8
   9- interrupts: A single interrupt specifier.
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  11- current-speed: Optional, the current bit rate in bits per second.
  12
  13Example:
  14        uart1: serial@1180000000c00 {
  15                compatible = "cavium,octeon-3860-uart","ns16550";
  16                reg = <0x11800 0x00000c00 0x0 0x400>;
  17                current-speed = <115200>;
  18                interrupts = <0 35>;
  19        };
  20