* Power Management Controller (PMC)

Required properties:
- compatible: Should be "atmel,<chip>-pmc".
	<chip> can be: at91rm9200, at91sam9260, at91sam9g45, at91sam9n12,
	at91sam9x5, sama5d3

- reg: Should contain PMC registers location and length

Examples:
	pmc: pmc@fffffc00 {
		compatible = "atmel,at91rm9200-pmc";
		reg = <0xfffffc00 0x100>;
	};

PMC Fast Startup Signals

The PMC Fast Start Signals are used as the wake up source to trigger the PMC
to wake up the system from the ULP1 mode.

required properties:
- compatible: should be "atmel,sama5d2-pmc-fast-startup".

optional properties:
- atmel,wakeup-rtc-timer: boolean to enable RTC alarm wake-up.
- atmel,wakeup-usb-resume: boolean to enable USB resume wake-up.
- atmel,wakeup-sdmmc-cd: boolean to enable SDMMC card detect wake-up.
- atmel,wakeup-rxlp-match: boolean to enable RXLP matching condition wake-up.
- atmel,wakeup-acc-comparison: boolean to enable ACC comparison wake-up.

The node contains child nodes for each wake-up input pin that the platform uses.

Input nodes

Required properties:
- reg: should contain the wake-up input index [0 - 10], to enable
  the corresponding wake-up input.

Optional properties:
- atmel,wakeup-active-high: boolean to declare the corresponding wake-up
  input described by the child be active high.
  The default is to be active low.

Example:

	pmc: pmc@f0014000 {
		compatible = "atmel,sama5d2-pmc";
		reg = <0xf0014000 0x160>;

		pmc_fast_restart {
			compatible = "atmel,sama5d2-pmc-fast-startup";
			#address-cells = <1>;
			#size-cells = <0>;

			atmel,wakeup-rtc-timer;

			wkpin: input@0 {
				reg = <0>;
			};

			gmac_wol: input@10 {
				reg = <10>;
				atmel,wakeup-active-high;
			};
		};
	};
