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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /Documentation/devicetree/bindings/i2c/i2c-imx.txt |
Initial import
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-imx.txt')
-rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-imx.txt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.txt b/Documentation/devicetree/bindings/i2c/i2c-imx.txt new file mode 100644 index 000000000..ce4311d72 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-imx.txt @@ -0,0 +1,40 @@ +* Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX + +Required properties: +- compatible : + - "fsl,imx1-i2c" for I2C compatible with the one integrated on i.MX1 SoC + - "fsl,imx21-i2c" for I2C compatible with the one integrated on i.MX21 SoC + - "fsl,vf610-i2c" for I2C compatible with the one integrated on Vybrid vf610 SoC +- reg : Should contain I2C/HS-I2C registers location and length +- interrupts : Should contain I2C/HS-I2C interrupt +- clocks : Should contain the I2C/HS-I2C clock specifier + +Optional properties: +- clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz. + The absence of the propoerty indicates the default frequency 100 kHz. +- dmas: A list of two dma specifiers, one for each entry in dma-names. +- dma-names: should contain "tx" and "rx". + +Examples: + +i2c@83fc4000 { /* I2C2 on i.MX51 */ + compatible = "fsl,imx51-i2c", "fsl,imx21-i2c"; + reg = <0x83fc4000 0x4000>; + interrupts = <63>; +}; + +i2c@70038000 { /* HS-I2C on i.MX51 */ + compatible = "fsl,imx51-i2c", "fsl,imx21-i2c"; + reg = <0x70038000 0x4000>; + interrupts = <64>; + clock-frequency = <400000>; +}; + +i2c0: i2c@40066000 { /* i2c0 on vf610 */ + compatible = "fsl,vf610-i2c"; + reg = <0x40066000 0x1000>; + interrupts =<0 71 0x04>; + dmas = <&edma0 0 50>, + <&edma0 0 51>; + dma-names = "rx","tx"; +}; |