>>>>> On Mon, 10 Jan 2005 18:11:14 +0000 (GMT), "Maciej W. Rozycki" <macro@xxxxxxxx> said: >> Well, maybe the 'volatile' have no sense, but some archs (including >> i386, of course :-)) and some drivers use it. Adding the >> 'volatile' will remove some compiler warnings. macro> As will removing "volatile" from broken ports. Sure. >> And I have some custom boards which really needs different swapping >> properties (PCI regions need SWAP_IO_SPACE, but ISA region does >> not, for example). I agree that those boards were misdesigned but >> I want to run Linux on it without modifying existing drivers. macro> Hmm, that's strange -- does the system glue ISA otherwise than macro> behind a PCI-ISA bridge? So far I've only spotted a single macro> PCI/ISA system wiring the buses as "peers", namely the ancient macro> Intel's i82420EX for 486-class processors. Yes. The system have ISA devices connected via local bus (like ROMs). Also I have an another system which have two PCI controllers with different endian conversion (what mad hardware!). --- Atsushi Nemoto
