TIMER_PTV
writel_relaxed(0, timer_of_base(to) + TIMER_PTV);
writel_relaxed(TIMER_PTV_EN | (cycles - 1), reg_base + TIMER_PTV);
writel_relaxed(0, reg_base + TIMER_PTV);
reg_base + TIMER_PTV);
writel(0, wdt->tmr_regs + TIMER_PTV);
writel(val, wdt->tmr_regs + TIMER_PTV);