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Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-at91.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-at91.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt new file mode 100644 index 000000000..388f0a275 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt @@ -0,0 +1,34 @@ +I2C for Atmel platforms + +Required properties : +- compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c", + "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c" + or "atmel,at91sam9x5-i2c" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: interrupt number to the cpu. +- #address-cells = <1>; +- #size-cells = <0>; +- clocks: phandles to input clocks. + +Optional properties: +- clock-frequency: Desired I2C bus frequency in Hz, otherwise defaults to 100000 +- Child nodes conforming to i2c bus binding + +Examples : + +i2c0: i2c@fff84000 { + compatible = "atmel,at91sam9g20-i2c"; + reg = <0xfff84000 0x100>; + interrupts = <12 4 6>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&twi0_clk>; + clock-frequency = <400000>; + + 24c512@50 { + compatible = "24c512"; + reg = <0x50>; + pagesize = <128>; + } +} |