RTC_BATT_CHARGE_CTRL
writel(BAT_CHARGE_RSEL_MASK_BIT | rsel, sp_rtc->reg_base + RTC_BATT_CHARGE_CTRL);
sp_rtc->reg_base + RTC_BATT_CHARGE_CTRL);
sp_rtc->reg_base + RTC_BATT_CHARGE_CTRL);
writel(BAT_CHARGE_EN_MASK_BIT | BAT_CHARGE_EN, sp_rtc->reg_base + RTC_BATT_CHARGE_CTRL);