linux/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
<<
>>
Prefs
   1Device tree configuration for i2c-ocores
   2
   3Required properties:
   4- compatible      : "opencores,i2c-ocores" or "aeroflexgaisler,i2cmst"
   5- reg             : bus address start and address range size of device
   6- interrupts      : interrupt number
   7- clock-frequency : frequency of bus clock in Hz
   8- #address-cells  : should be <1>
   9- #size-cells     : should be <0>
  10
  11Optional properties:
  12- reg-shift       : device register offsets are shifted by this value
  13- reg-io-width    : io register width in bytes (1, 2 or 4)
  14- regstep         : deprecated, use reg-shift above
  15
  16Example:
  17
  18        i2c0: ocores@a0000000 {
  19                #address-cells = <1>;
  20                #size-cells = <0>;
  21                compatible = "opencores,i2c-ocores";
  22                reg = <0xa0000000 0x8>;
  23                interrupts = <10>;
  24                clock-frequency = <20000000>;
  25
  26                reg-shift = <0>;        /* 8 bit registers */
  27                reg-io-width = <1>;     /* 8 bit read/write */
  28
  29                dummy@60 {
  30                        compatible = "dummy";
  31                        reg = <0x60>;
  32                };
  33        };
  34