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