Re: proper ioport space allocation

Martin Mares (mj@atrey.karlin.mff.cuni.cz)
Fri, 18 Dec 1998 13:39:33 +0100

> PCI I/O address space is 16-bit. 32-bit I/O addresses may work if a
> single PCI bus is present but they cannot cross PCI-PCI bridges.

PCI-PCI bridges can, but needn't support 32-bit I/O.

Have a nice fortnight

-- 
Martin `MJ' Mares   <mj@ucw.cz>   http://atrey.karlin.mff.cuni.cz/~mj/
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
"Foolproof operation:  All parameters are hard coded."


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