Our design need auto power on feature (without press power button) in I.MX6Solo with PMIC and also RTC coin battery apply to LICELL of PMIC (also apply to VDD_SNVS_IN of I.MX6Solo).
When I normally shut down system by press power icon of Linux and remove all power except RTC coin battery,system cannot auto power on when I apply power to PMIC next time.
I need press power button(connect to ONOFF pin of i.MX6Solo) then it can boot up. It seems PMIC_ON_REQ of i.MX6Solo deassert to PWRON pin of PMIC.
But if disconnect PMIC_ON_REQ from i.MX6Solo to PMIC, PMIC will not power off when system normally shut down by press power icon of Linux.
Could some body help provide suggestion?