5 - compatible : should be "snps,arc-timer".
6 - reg : Specifies timer ID, could be either 0 or 1.
7 - clocks : Specifies clocks that drives the counter.
12 compatible = "snps,arc-timer";
18 compatible = "snps,arc-timer";
23 NOTE: if you specify both timers, clocks always should be the same
24 as each timer is driven by the same core clock.