* Atmel Data Flash Required properties: - compatible : "atmel,", "atmel,", "atmel,dataflash". The device tree may optionally contain sub-nodes describing partitions of the address space. See partition.txt for more detail. Example: flash@1 { #address-cells = <1>; #size-cells = <1>; compatible = "atmel,at45db321d", "atmel,at45", "atmel,dataflash"; spi-max-frequency = <25000000>; reg = <1>; };