Colibri IMX6ULL boot time

Hello,

We are using IMX6ull 256 MB with a custom carrier board.

We want to use it for a Qt GUI application with GPIO and USB peripherals only.

Is it possible to build an OS Image which can boot in 3-4 sec? if Yes, can you please share the reference? If no, what is the fastest boot time achievable with this set up?

Thanks

Please check this thread - IMX6ull Boot time optimization