The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/i2c/i2c-omap.txt

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    1 I2C for OMAP platforms
    2 
    3 Required properties :
    4 - compatible : Must be
    5         "ti,omap2420-i2c" for OMAP2420 SoCs
    6         "ti,omap2430-i2c" for OMAP2430 SoCs
    7         "ti,omap3-i2c" for OMAP3 SoCs
    8         "ti,omap4-i2c" for OMAP4+ SoCs
    9         "ti,am654-i2c", "ti,omap4-i2c" for AM654 SoCs
   10         "ti,j721e-i2c", "ti,omap4-i2c" for J721E SoCs
   11         "ti,am64-i2c", "ti,omap4-i2c" for AM64 SoCs
   12 - ti,hwmods : Must be "i2c<n>", n being the instance number (1-based)
   13 - #address-cells = <1>;
   14 - #size-cells = <0>;
   15 
   16 Recommended properties :
   17 - clock-frequency : Desired I2C bus clock frequency in Hz. Otherwise
   18   the default 100 kHz frequency will be used.
   19 
   20 Optional properties:
   21 - Child nodes conforming to i2c bus binding
   22 
   23 Note: Current implementation will fetch base address, irq and dma
   24 from omap hwmod data base during device registration.
   25 Future plan is to migrate hwmod data base contents into device tree
   26 blob so that, all the required data will be used from device tree dts
   27 file.
   28 
   29 Examples :
   30 
   31 i2c1: i2c@0 {
   32     compatible = "ti,omap3-i2c";
   33     #address-cells = <1>;
   34     #size-cells = <0>;
   35     ti,hwmods = "i2c1";
   36     clock-frequency = <400000>;
   37 };

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