Can we get EdgeBox-RPI-200's information of wiring between mini pcie and CM4's GPIO?

I am currently trying to use the EdgeBox-RPI-200 with a non-rasbian OS, Buildroot Linux.
I have confirmed that everything works except the control of the LTE module via mini pcie.

Can we get EdgeBox-RPI-200’s information of wiring between mini pcie and CM4’s GPIO?

Hello,
This is not an open source device, so no more information about this is available. I’m sorry for the inconvenience.

@Seeed_Seraphina Thanks for your reply!

Then, can I get linux kernel source of the image distributed at following link?

https://sourceforge.net/projects/edgebox-rpi-200/files/

The EdgeBox-RPI-200 uses the official 32-bit buster system without any modifications.

Thank you very much. It is very meaningful to know that. Thanks again.

Finally, I was able to use the EdgeBox-RPI-200 with a non Raspberry Pi OS, Buildroot Linux.
It was because the value of linux kernel config was different from that of Raspberry Pi OS.

Thanks!