> Define "legacy device"? What should that entail? You mean like mapping > most of those registers to the first couple of kilobytes of "IO"?
Anything that hard-decodes IOs in the low ISA range yes. That includes VGA video cards. > If they're just left as their own on their own as PCI devices, why would > it matter what the window was? Because quite a few of those things hard decodes (can't be moved around, so -have- to be able to generate cycles to those low addresses to hit them) and sometimes don't even fully decode the 32 bits addresses (though that's more rare). For example, a VGA video card in text mode hard decodes both IO and Memory at the legacy VGA ranges. Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
