4 - compatible : "atmel,at25".
5 - reg : chip select number
6 - spi-max-frequency : max spi frequency to use
8 - at25,byte-len : total eeprom size in bytes
9 - at25,addr-mode : addr-mode flags, as defined in include/linux/spi/eeprom.h
10 - at25,page-size : size of the eeprom page
14 compatible = "atmel,at25";
16 spi-max-frequency = <5000000>;
18 at25,byte-len = <0x8000>;
20 at25,page-size = <64>;