for PIRQ, you run the program in freebios/util called getpir, which writes a file called irq_tables.c. You have to run this on the standard bios.
Copy that file into the mainboard directory. In the mainboard Config file add the line: option HAVE_PIRQ_TABLE=1
and you should be fine.
Try to make this go before we commit. To commit, send my a unified diff of your tree against the HEAD branch. I'll run patch and commit it.
ron