We typically recommend customers start with one of our evaluation boards so that they can have a known-good hardware platform and software driver. Since you are developing a software driver for a reference design, this is a little different flow for us.
For ADV7612, you can find documents and configuration scripts in the following folder:
For ADV7180, you can find documents and configuration scripts in the following folder:
Which ADV7180 is this reference design using? Can you see a part number?
-Matt