Hisilicon Platforms Device Tree Bindings
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Hi4511 Board
Required root node properties:
	- compatible = "hisilicon,hi3620-hi4511";

Hisilicon system controller

Required properties:
- compatible : "hisilicon,sysctrl"
- reg : Register address and size

Optional properties:
- smp-offset : offset in sysctrl for notifying slave cpu booting
		cpu 1, reg;
		cpu 2, reg + 0x4;
		cpu 3, reg + 0x8;
		If reg value is not zero, cpun exit wfi and go
- resume-offset : offset in sysctrl for notifying cpu0 when resume
- reboot-offset : offset in sysctrl for system reboot

Example:

	/* for Hi3620 */
	sysctrl: system-controller@fc802000 {
		compatible = "hisilicon,sysctrl";
		reg = <0xfc802000 0x1000>;
		smp-offset = <0x31c>;
		resume-offset = <0x308>;
		reboot-offset = <0x4>;
	};