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