Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / i2c / i2c-at91.txt

diff --git a/kernel/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/kernel/Documentation/devicetree/bindings/i2c/i2c-at91.txt
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+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>;
+       }
+}