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* Atmel HW cryptographic accelerators

These are the HW cryptographic accelerators found on some Atmel products.

* Advanced Encryption Standard (AES)

Required properties:
- compatible : Should be "atmel,at91sam9g46-aes".
- reg: Should contain AES registers location and length.
- interrupts: Should contain the IRQ line for the AES.
- dmas: List of two DMA specifiers as described in
        atmel-dma.txt and dma.txt files.
- dma-names: Contains one identifier string for each DMA specifier
             in the dmas property.

Example:
aes@f8038000 {
	compatible = "atmel,at91sam9g46-aes";
	reg = <0xf8038000 0x100>;
	interrupts = <43 4 0>;
	dmas = <&dma1 2 18>,
	       <&dma1 2 19>;
	dma-names = "tx", "rx";