What are in the linux board support package?

Products Support DragonBoard 820c
#1

A Linux Board Support Package can be downloaded from the Qualcomm Developer Network, but what are the things in it? There seems to be no document at all.

I found some proprietary firmware inside. How to use it? And is it built as part of the default OS?

#2

You don’t need it. All of the relevant firmware is available through typical firmware sources (linux-firmware), and all relevant pieces are already in builds.