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Documentation / devicetree / bindings / i2c / i2c-imx.txt




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Based on kernel version 3.19. Page generated on 2015-02-13 21:17 EST.

1	* Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
2	
3	Required properties:
4	- compatible :
5	  - "fsl,imx1-i2c" for I2C compatible with the one integrated on i.MX1 SoC
6	  - "fsl,imx21-i2c" for I2C compatible with the one integrated on i.MX21 SoC
7	  - "fsl,vf610-i2c" for I2C compatible with the one integrated on Vybrid vf610 SoC
8	- reg : Should contain I2C/HS-I2C registers location and length
9	- interrupts : Should contain I2C/HS-I2C interrupt
10	
11	Optional properties:
12	- clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
13	  The absence of the propoerty indicates the default frequency 100 kHz.
14	- dmas: A list of two dma specifiers, one for each entry in dma-names.
15	- dma-names: should contain "tx" and "rx".
16	
17	Examples:
18	
19	i2c@83fc4000 { /* I2C2 on i.MX51 */
20		compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
21		reg = <0x83fc4000 0x4000>;
22		interrupts = <63>;
23	};
24	
25	i2c@70038000 { /* HS-I2C on i.MX51 */
26		compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
27		reg = <0x70038000 0x4000>;
28		interrupts = <64>;
29		clock-frequency = <400000>;
30	};
31	
32	i2c0: i2c@40066000 { /* i2c0 on vf610 */
33		compatible = "fsl,vf610-i2c";
34		reg = <0x40066000 0x1000>;
35		interrupts =<0 71 0x04>;
36		dmas = <&edma0 0 50>,
37			<&edma0 0 51>;
38		dma-names = "rx","tx";
39	};
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