AR_RTC_SOWL_PLL_DIV
pll |= SM(0x50, AR_RTC_SOWL_PLL_DIV);
pll |= SM(0x58, AR_RTC_SOWL_PLL_DIV);
pll |= SM(0x58, AR_RTC_SOWL_PLL_DIV);
pll |= SM(0x28, AR_RTC_SOWL_PLL_DIV);
pll |= SM(0x2c, AR_RTC_SOWL_PLL_DIV);
pll |= SM(0x2c, AR_RTC_SOWL_PLL_DIV);