pci-pci bridge initialisation code

pci-pci bridge initialisation code

[bhupinder sahran]

hi all
i have ported linux on my MPC8240 processor.
but as i am not having bios kind of stuff so kernek
should initialise all the peripherals sitting on the
pci bus.
i have intigrated the code, but code for mapping the
pci-pci bridge is not with me.
so i cam not see the device which are sitting on bus
after the bridge.
can anybody tell me where i can get this code.
thanks in advance
with king regards
Bhupi


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Re: pci-pci bridge initialisation code

[Matt Porter]

On Thu, Aug 02, 2001 at 01:54:37PM -0700, bhupinder sahran wrote:
>
> hi all
> i have ported linux on my MPC8240 processor.
> but as i am not having bios kind of stuff so kernek
> should initialise all the peripherals sitting on the
> pci bus.
> i have intigrated the code, but code for mapping the
> pci-pci bridge is not with me.
> so i cam not see the device which are sitting on bus
> after the bridge.

arch/ppc/kernel/pci_auto.c performs PCI enumeration.

--
Matt Porter
MontaVista Software, Inc.
mporter@mvista.com

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Re: pci-pci bridge initialisation code

[Mark A. Greer]

bhupinder sahran wrote:

> hi all
> i have ported linux on my MPC8240 processor.
> but as i am not having bios kind of stuff so kernek
> should initialise all the peripherals sitting on the
> pci bus.
> i have intigrated the code, but code for mapping the
> pci-pci bridge is not with me.
> so i cam not see the device which are sitting on bus
> after the bridge.
> can anybody tell me where i can get this code.
> thanks in advance
> with king regards

I'm not sure I really understood everything you're trying to say but you can
start looking in mpc10x_common.c for some mpc105/106//107/8240 bridge init
code.  You can look at the sandpoint port for how to use it.  This code should
do most if not all of what you need to do.

Mark


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Re: pci-pci bridge initialisation code

[Mark A. Greer]

"Mark A. Greer" wrote:

> bhupinder sahran wrote:
>
> > hi all
> > i have ported linux on my MPC8240 processor.
> > but as i am not having bios kind of stuff so kernek
> > should initialise all the peripherals sitting on the
> > pci bus.
> > i have intigrated the code, but code for mapping the
> > pci-pci bridge is not with me.
> > so i cam not see the device which are sitting on bus
> > after the bridge.
> > can anybody tell me where i can get this code.
> > thanks in advance
> > with king regards
>
> I'm not sure I really understood everything you're trying to say but you can
> start looking in mpc10x_common.c for some mpc105/106//107/8240 bridge init
> code.  You can look at the sandpoint port for how to use it.  This code should
> do most if not all of what you need to do.

I guess I should add that if you really mean setting up a PCI-PCI bridge (and not
the host bridge), try using the pci_auto stuff.

Mark


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