[parisc-linux] problems with PCI IDE controller

[Alan Cox]

On Mon, 2002-12-16 at 06:09, John Marvin wrote:
> > On Sat, 2002-12-14 at 13:10, Matthew Wilcox wrote:
> > > > hp-c240 login: Uniform Multi-Platform E-IDE driver Revision: 6.31
> > > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> > > > PDC20268: IDE controller on PCI bus 00 dev 08
> > > > PDC20268: chipset revision 2
> > > > PDC20268: not 100% native mode: will probe irqs later
> >
> > Is this a plug in card. For some reason it has been left in non native
> > mode so won't work as a plug in board.
> 
> I don't think this is a problem. I have a similar card in my home PC, and
> it prints the same thing (re: not 100% native mode). Here is an excerpt
> from my PC's boot messages running 2.4.19:

A PC is a very different thing

In legacy mode the PCI BAR registers are ignored, the I/O decode is at
0x170 etc and interrupts are flagged by the ISA legacy not by the PCI
bus.

That isnt going to work very well on your average PA-RISC box. Most
probably you want to force the chip into native mode on pa-risc
hardware.