1 I2C for Atmel platforms
4 - compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c",
5 "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c",
6 "atmel,at91sam9x5-i2c", "atmel,sama5d4-i2c" or "atmel,sama5d2-i2c".
7 - reg: physical base address of the controller and length of memory mapped
9 - #address-cells = <1>;
11 - clocks: phandles to input clocks.
14 - clock-frequency: Desired I2C bus frequency in Hz, default value is 100000.
15 - Child nodes conforming to i2c bus binding.
20 compatible = "atmel,sama5d2-i2c";
21 reg = <0xf8028000 0x100>;
25 clock-frequency = <100000>;