I have enabled Secure boot on i.MX6 Dual Lite custom board. I have enabled RNG_TRIM fuse and closed for secure boot. However, I see a strange behavior like occasionally the board is not able to boot up. TThis behavior observed in only on the boards which are closed for secure boot. The board has PMIC chip to control the supply of various voltage levels.
I have gone through the datasheet (Section 220.127.116.11 LDO_2P5 ( In i.MX6 Dual Lite datasheet)) that mention about the voltage requirement. Can anyone experienced similar problems? I am particularly interested in the voltage levels and clocks needed for secure boot and OCOTP controller.
Thanks in Advance,