| Device tree configuration for i2c-ocores |
| |
| Required properties: |
| - compatible : "opencores,i2c-ocores" or "aeroflexgaisler,i2cmst" |
| - reg : bus address start and address range size of device |
| - interrupts : interrupt number |
| - clock-frequency : frequency of bus clock in Hz |
| - #address-cells : should be <1> |
| - #size-cells : should be <0> |
| |
| Optional properties: |
| - reg-shift : device register offsets are shifted by this value |
| - reg-io-width : io register width in bytes (1, 2 or 4) |
| - regstep : deprecated, use reg-shift above |
| |
| Example: |
| |
| i2c0: ocores@a0000000 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| compatible = "opencores,i2c-ocores"; |
| reg = <0xa0000000 0x8>; |
| interrupts = <10>; |
| clock-frequency = <20000000>; |
| |
| reg-shift = <0>; /* 8 bit registers */ |
| reg-io-width = <1>; /* 8 bit read/write */ |
| |
| dummy@60 { |
| compatible = "dummy"; |
| reg = <0x60>; |
| }; |
| }; |
