-------- Original-Nachricht -------- > Datum: Thu, 6 Sep 2007 09:15:01 -0500 > Von: Scott Wood <[EMAIL PROTECTED]> > An: Segher Boessenkool <[EMAIL PROTECTED]> > CC: [email protected], David Gibson <[EMAIL PROTECTED]> > Betreff: PCI I/O space -- reg or ranges?
> > Sure, it can be encoded like that. But does it make sense? > > You cannot use legacy I/O space as normal memory space. > > Why does it not make sense? I'm not sure what you mean by using it as > "normal memory space", but if the PCI bridge does a straightforward > linear mapping of I/O into memory space (like most non-x86 bridges do), > it seems to make sense to me to reuse the existing ranges mechanism > rather than require each driver to have extra glue code. Well, pci_process_bridge_OF_ranges() only looks at the ranges property to ioremap() I/O space. Gerhard -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer _______________________________________________ Linuxppc-dev mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-dev
