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Required properties:
-- compatible: Should be "oxsemi,ox810se-rps-timer"
+- compatible: Should be "oxsemi,ox810se-rps-timer" or "oxsemi,ox820-rps-timer"
- reg : Specifies base physical address and size of the registers.
- interrupts : The interrupts of the two timers
- clocks : The phandle of the timer clock source