I've looked on the AMD site,, but didn't see any...
I would open a AMD Service Request from here: Online Service Request | AMD so they will assign you a Embedded Specialist to try and answer your question.
Also may be post your question at AMD Developers Forum from here: Devgurus.
Edit: Found at XJTAG.ORG BDSL Files for AMD: Boundary Scan Description Language – BSDL Files
Click on AMD and this is the AMD Developer website it went too with all the BDSL files: https://search.amd.com/en-gb/Pages/results-all.aspx?k=bsdl
Not sure which one of these are compatible with the LX800 Embedded Motherboards.