PetaLinux generates the dtsi & dts using the XSA for all hardware present in the design (typically the static region). Any additional IPs not described in the XSA such as dynamically loaded or partially reconfigured and when parameters needs modification then, those must be added manually in system-user.dtsi.
For further inquiries, please get in touch with mktg@iwave-global.com
Please find the detailed G35M product information in the below link,