- compatible: Should be "atmel,<chip>-shdwc".
<chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
- reg: Should contain registers location and length
- compatible: Should be "atmel,<chip>-shdwc".
<chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
- reg: Should contain registers location and length