Re: [Linux-mips-kernel] mips generic pci code

[Paul M. <pm...@mv...>]

On Thu, Jul 05, 2001 at 05:57:17PM -0700, Pete Popov wrote:
>   One of the things I would like to add to the mips tree is generic pci=
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> code.  Jun recently ported the PPC pci_auto.c and pci.c code to one of=20
> the DDB NEC boards.  Now I've taken that code and made it mips generic.=
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>  I've tested it on one mips board so far; I will soon have it tested on=
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> a couple of more boards.The code has two components: pci_auto.c and=20
> pci.c.  The pci_auto (if enabled) scans the bus(es) and assigns all the=
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> resources. Thus, you don't need boot code to do that anymore. This code=
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> has been tested pretty well on PPC on some pretty complex CPCI systems=20
> with multiple P2P bridges and devices behind the bridges.  pci.c is the=
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> second part and that's just generic pci handling code that all boards=20
> should be able to use.
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> We've modified the code somewhat from the PPC and it certainly needs a=20
> lot of testing. However, it's only enabled in arch/mips/config.in for=20
> boards that are tested so other boards can take their time moving over=20
> to this code.  I think this code is badly needed in the mips tree=20
> because right now every board is doing its own pci thing. Add to that=20
> different boot codes on different boards which don't necessarily=20
> initialize the bus correctly, and you've got a real mess.
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Very nice! Speaking of supported boards.. have you had a chance to test it
out on the ITE IT8172? If not, I'll give it a try tomorrow and let you know
my results.

Regards,

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Paul Mundt <pm...@mv...>
MontaVista Software, Inc.