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1* Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
2
3Required properties:
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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
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8- reg : Should contain I2C/HS-I2C registers location and length
9- interrupts : Should contain I2C/HS-I2C interrupt
5d232112 10- clocks : Should contain the I2C/HS-I2C clock specifier
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11
12Optional properties:
13- clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
14 The absence of the propoerty indicates the default frequency 100 kHz.
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15- dmas: A list of two dma specifiers, one for each entry in dma-names.
16- dma-names: should contain "tx" and "rx".
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17
18Examples:
19
20i2c@83fc4000 { /* I2C2 on i.MX51 */
5bdfba29 21 compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
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22 reg = <0x83fc4000 0x4000>;
23 interrupts = <63>;
24};
25
26i2c@70038000 { /* HS-I2C on i.MX51 */
5bdfba29 27 compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
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28 reg = <0x70038000 0x4000>;
29 interrupts = <64>;
30 clock-frequency = <400000>;
31};
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32
33i2c0: i2c@40066000 { /* i2c0 on vf610 */
34 compatible = "fsl,vf610-i2c";
35 reg = <0x40066000 0x1000>;
36 interrupts =<0 71 0x04>;
37 dmas = <&edma0 0 50>,
38 <&edma0 0 51>;
39 dma-names = "rx","tx";
40};