OSCR
writel_relaxed(readl_relaxed(OSCR) + 368640, OSMR3);
#define xip_currtime() readl_relaxed(OSCR)
#define xip_elapsed_since(x) (signed)((readl_relaxed(OSCR) - (x)) / 4)
oscr = timer_readl(OSCR);
timer_writel(oscr, OSCR);
ret = clocksource_mmio_init(timer_base + OSCR, "oscr0", clock_tick_rate, 200,
return timer_readl(OSCR);
next = timer_readl(OSCR) + delta;
oscr = timer_readl(OSCR);