Re: Nile 4

[Ralf Baechle <ralf@linux-mips.org>]

On Wed, Jul 09, 2003 at 09:58:08AM +0200, Geert Uytterhoeven wrote:

> > Well, I was wondering because the code in arch/mips/pci/ops-nile4.c which
> > was extraced from the lasat code is completly different from
> > ddb5xxx/ddb5074/pci_ops.c, so it's hard to extract the commonc code into
> > a shared file.
> 
> If you know the chip, they are actually quite similar :-)
> 
> The differences between the Lasat and the DDB code are these:
>   - The Lasat code checks the PCI error registers to detect the presence of PCI
>     devices, while the DDB code doesn't,
>   - The Lasat code is limited to 8 PCI devices on bus 0, while the DDB code
>     uses a different access scheme to access the extra devices,
>   - The DDB code uses abstraction functions to access the Nile 4 registers,
>     while the Lasat code accesses the registers directly.

Time to cleanup that mess also then.

Does anybody still care about the DDB5074?  I was just told somebody tried
it and it didn't boot into userspace ...

  Ralf