Pegasos2 with RadeonHD/RX via bridge

@All (smarkusg mostly)
I found now, that update3 which we release not long ago, have kernel 54.57 for pegasos2. And in this version there were fix by Hans:

- Fixed 64-bit PCI BAR handling for Pegasos II, so that 64-bit PCI
devices can be used on the Pegasos II (provided they're within
32-bit address space)

So, if bboot only fix that, maybe you can test in your spare time without bboot with update3's 54.57 kernel your passthrough setup to RadeonHD, so we will know if there needs to fix it in firmware at all anymore or that in the past ? Just the less hacks in new firmware the better, of course.

From my side i at least can say that i can boot without bboot with 54.71 version, which have not only this 64/32bit workaround, but also few other ones, but will be good to know if 54.57 at least fix "just" what bboot fix.