AR_RTC_SOWL_PLL_CLKSEL
pll |= SM(0x1, AR_RTC_SOWL_PLL_CLKSEL);
pll |= SM(0x2, AR_RTC_SOWL_PLL_CLKSEL);
pll |= SM(0x1, AR_RTC_SOWL_PLL_CLKSEL);
pll |= SM(0x2, AR_RTC_SOWL_PLL_CLKSEL);
pll |= SM(0x1, AR_RTC_SOWL_PLL_CLKSEL);
pll |= SM(0x2, AR_RTC_SOWL_PLL_CLKSEL);