1* Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
2
3Required 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- clocks : Should contain the I2C/HS-I2C clock specifier
11
12Optional properties:
13- clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
14  The absence of the property indicates the default frequency 100 kHz.
15- dmas: A list of two dma specifiers, one for each entry in dma-names.
16- dma-names: should contain "tx" and "rx".
17- scl-gpios: specify the gpio related to SCL pin
18- sda-gpios: specify the gpio related to SDA pin
19- pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c
20  bus recovery, call it "gpio" state
21
22Examples:
23
24i2c@83fc4000 { /* I2C2 on i.MX51 */
25	compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
26	reg = <0x83fc4000 0x4000>;
27	interrupts = <63>;
28};
29
30i2c@70038000 { /* HS-I2C on i.MX51 */
31	compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
32	reg = <0x70038000 0x4000>;
33	interrupts = <64>;
34	clock-frequency = <400000>;
35};
36
37i2c0: i2c@40066000 { /* i2c0 on vf610 */
38	compatible = "fsl,vf610-i2c";
39	reg = <0x40066000 0x1000>;
40	interrupts =<0 71 0x04>;
41	dmas = <&edma0 0 50>,
42		<&edma0 0 51>;
43	dma-names = "rx","tx";
44	pinctrl-names = "default", "gpio";
45	pinctrl-0 = <&pinctrl_i2c1>;
46	pinctrl-1 = <&pinctrl_i2c1_gpio>;
47	scl-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>;
48	sda-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>;
49};
50