About the driver of GEN4 4D CAPE 70T

Hello,

BegleBoneBlack is booted from SD card using Android 4.2.2.
The LCD was using 4D CAPE 70T.
When the model changes to GEN44DCAPE70T, it can not be used with Android 4.2.2.
It was confirmed that it can be used with the latest Debian Linux.

Please let me know if you know how to add a driver for GEN44DCAPE70T or how to obtain Debian source code.

Thank you.