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