Secure Image TLK on Android jetson-tk1

I used to bring up android on jetson-tk1. I saw a flag
export SECURE_OS_BUILD=n. Looking to integrate a compare secure image (tlk) to integrate with current zImage?

Instructions on how to do it?

Any responses?

This Android build for Jetson is posted by community developer and not officially supported by NVIDIA so the package is as it is. The fact that SECURE_OS_BUILD is disabled, that means there is no secure OS support for the default build. It’s unknown if you enable it.

Is there a particular way or a guide which describes how to enable secure OS build ? i believe since TLK is open source so, we can build it and link it?