[deliverable/linux.git] / Documentation / devicetree / bindings / i2c / i2c-efm32.txt

* Energymicro efm32 i2c controller

Required properties :

 - reg : Offset and length of the register set for the device
 - compatible : should be "energymicro,efm32-i2c"
 - interrupts : the interrupt number
 - clocks : reference to the module clock

Recommended properties :

 - clock-frequency : maximal I2C bus clock frequency in Hz.
 - efm32,location : Decides the location of the USART I/O pins.
   Allowed range : [0 .. 6]

Example:
	i2c0: i2c@4000a000 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "energymicro,efm32-i2c";
		reg = <0x4000a000 0x400>;
		interrupts = <9>;
		clocks = <&cmu clk_HFPERCLKI2C0>;
		clock-frequency = <100000>;
		status = "ok";
		efm32,location = <3>;

		eeprom@50 {
			compatible = "microchip,24c02";
			reg = <0x50>;
			pagesize = <16>;
		};
	};
Commit	Line	Data
1b5b2371 UKK	1	* Energymicro efm32 i2c controller
	2
	3	Required properties :
	4
	5	- reg : Offset and length of the register set for the device
3428f018	6	- compatible : should be "energymicro,efm32-i2c"
1b5b2371 UKK	7	- interrupts : the interrupt number
	8	- clocks : reference to the module clock
	9
	10	Recommended properties :
	11
	12	- clock-frequency : maximal I2C bus clock frequency in Hz.
	13	- efm32,location : Decides the location of the USART I/O pins.
	14	Allowed range : [0 .. 6]
	15
	16	Example:
	17	i2c0: i2c@4000a000 {
	18	#address-cells = <1>;
	19	#size-cells = <0>;
3428f018	20	compatible = "energymicro,efm32-i2c";
1b5b2371 UKK	21	reg = <0x4000a000 0x400>;
	22	interrupts = <9>;
	23	clocks = <&cmu clk_HFPERCLKI2C0>;
	24	clock-frequency = <100000>;
3428f018	25	status = "ok";
1b5b2371 UKK	26	efm32,location = <3>;
	27
	28	eeprom@50 {
	29	compatible = "microchip,24c02";
	30	reg = <0x50>;
	31	pagesize = <16>;
	32	};
	33	};
	34