linux/Documentation/devicetree/bindings/i2c/i2c-octeon.txt
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   1* Two Wire Serial Interface (TWSI) / I2C
   2
   3- compatible: "cavium,octeon-3860-twsi"
   4
   5  Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
   6
   7- reg: The base address of the TWSI/I2C bus controller register bank.
   8
   9- #address-cells: Must be <1>.
  10
  11- #size-cells: Must be <0>.  I2C addresses have no size component.
  12
  13- interrupts: A single interrupt specifier.
  14
  15- clock-frequency: The I2C bus clock rate in Hz.
  16
  17Example:
  18        twsi0: i2c@1180000001000 {
  19                #address-cells = <1>;
  20                #size-cells = <0>;
  21                compatible = "cavium,octeon-3860-twsi";
  22                reg = <0x11800 0x00001000 0x0 0x200>;
  23                interrupts = <0 45>;
  24                clock-frequency = <100000>;
  25
  26                rtc@68 {
  27                        compatible = "dallas,ds1337";
  28                        reg = <0x68>;
  29                };
  30                tmp@4c {
  31                        compatible = "ti,tmp421";
  32                        reg = <0x4c>;
  33                };
  34        };
  35