LongTrail PCI resource assignment

[Geert Uytterhoeven]

On Mon, 27 Mar 2000, Michael Schmitz wrote:
> > > 00:11.0 VGA compatible controller: ATI Technologies Inc: Unknown device
> > > 4c49 (rev dc)
> > > 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
> > > 	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> > > 	Latency: 8 min, 32 set, cache line size 08
> > > 	Interrupt: pin A routed to IRQ 24
> > > 	Region 0: Memory at 81000000 (32-bit, non-prefetchable)
> > > 	Region 1: I/O ports at <unassigned>
> > > 	Region 2: Memory at 00010000 (32-bit, non-prefetchable)
> >                             ^^^^^^^^
> > Tadaaa, that's why you need to change PCIBIOS_MIN_MEM. I don't think this is a
> > valid address for PCI memory for your box. To me, it looks like PCIBIOS_MIN_MEM
> > must be 0x80000000 for your machine, but one of the PowerMac gurus can tell for
> > sure.
>
> Well, all I know is that it works.

Ever tried writing to it? :-) For your own safety, please don't! But you can
try reading the CHIP_ID register.

> And this is my PCIBIOS_MIN_MEM:
>
> include/asm/pci.h:#define PCIBIOS_MIN_MEM		0x10000000
>
> Seems it got ignored and the resource allocator picked the next free spot.

Weird, mine got assigned to 0xc0000000, which is what I expect.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven ------------- Sony Software Development Center Europe (SDCE)
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