I have the W522A radio module on my X96 Max Plus 100W board.

I found some information.
The W552a is an Fn-Link K255B-SR.
The Fn-Link K255B-SR is an Amlogic W155S1 chip, with the following datasheet:
https://usermanual.wiki/HUNAN-FN-LINK-TECHNOLOGY/K255B-SR.User-Manual-5353157.pdf

I found two github for the sources of this module:
https://github.com/CoreELEC/w1-aml
https://github.com/adeepn/w1-aml

Tutorials for W155S1
https://blog.csdn.net/zhaojy5453/article/details/115484201

I hope it can help you, thanks for your work.