MCHP_PIT64B_CR
writel_relaxed(MCHP_PIT64B_CR_SWRST, timer->base + MCHP_PIT64B_CR);
writel_relaxed(MCHP_PIT64B_CR_START, timer->base + MCHP_PIT64B_CR);
writel_relaxed(MCHP_PIT64B_CR_SWRST, timer->base + MCHP_PIT64B_CR);