MPC5200B: Linux does not recognise the external PCI card

[Pedro Luis D. L.]

> From: jbe at pengutronix.de
> To: linuxppc-embedded at ozlabs.org
> Date: Thu, 15 Nov 2007 14:30:05 +0100
> Subject: MPC5200B: Linux does not recognise the external PCI card
> 
> Hi,

Hello,


> currently I'm trying to activate the PCI bus of my MPC5200B based card. U-Boot 
> outputs:
> 
> [...]
> PCI:   Bus Dev VenId DevId Class Int
>         00  18  1033  0035  0c03  00
>         00  18  1033  0035  0c03  00
>         00  18  1033  00e0  00e0  00
>         00  1a  1057  5809  0680  00
> [...]
> 
> When I start Linux it outputs:
> 
> [...]
> PCI: Probing PCI hardware
> PCI: device 0000:00:18.0 has unknown header type 7f, ignoring.
> mpc52xx_pci_fixup_resources() 1057:5809
> [...]
> 
> and does not show the external card:

Which card? Is its driver supported by the kernel? Is it enabled inside the kernel image?
Did you add the PCI bridge in platform configuration file? I suppose so if there is a PCI probing test.
I added an external ethernet device and had no problem to made it work with 2.6.22 kernel.

Pedro.

> # lspci -v
> 00:1a.0 Bridge: Motorola Unknown device 5809
>         Flags: bus master, 66MHz, medium devsel, latency 248
>         Memory at a0000000 (32-bit, non-prefetchable) [size=256K]
>         Memory at  (32-bit, prefetchable)
> 
> Any idea what could cause this behavior?
> Could this be an oftree related issue? Or something hardware only related?
> The external slot is of 3.3V only type, running at 33 1/3 MHz.
> 
> If it is an oftree issue, can someone point me to some kind of documentation, 
> what data I must provide in the
> 	pci at 0d00 {
> 		....
> 	}
> section?
> 
> Juergen
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