MPC5200B: Linux does not recognise the external PCI card

MPC5200B: Linux does not recognise the external PCI card

[Juergen Beisert]

Hi,

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:

# 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 <unassigned> (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@0d00 {
		....
	}
section?

Juergen

RE: MPC5200B: Linux does not recognise the external PCI card

[Pedro Luis D. L.]

> From: jbe@pengutronix.de
> To: linuxppc-embedded@ozlabs.org
> Date: Thu, 15 Nov 2007 14:30:05 +0100
> Subject: MPC5200B: Linux does not recognise the external PCI card
>=20
> Hi,

Hello,


> currently I'm trying to activate the PCI bus of my MPC5200B based card. U=
-Boot=20
> outputs:
>=20
> [...]
> 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
> [...]
>=20
> When I start Linux it outputs:
>=20
> [...]
> PCI: Probing PCI hardware
> PCI: device 0000:00:18.0 has unknown header type 7f, ignoring.
> mpc52xx_pci_fixup_resources() 1057:5809
> [...]
>=20
> 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=3D256K]
>         Memory at  (32-bit, prefetchable)
>=20
> 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.
>=20
> If it is an oftree issue, can someone point me to some kind of documentat=
ion,=20
> what data I must provide in the
> 	pci@0d00 {
> 		....
> 	}
> section?
>=20
> Juergen
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded

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Re: MPC5200B: Linux does not recognise the external PCI card

[Juergen Beisert]

On Thursday 15 November 2007 14:49, Pedro Luis D. L. wrote:
> > [...]
> > 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?

Its a NEC USB 2.0 card.

> Is its driver supported by the kernel?

I think so.

> Is it enabled inside the kernel image?

But until the card gets recognised it makes no sense to play with the driver.

> 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.

My kernel is a 2.6.23.1

Juergen

RE: MPC5200B: Linux does not recognise the external PCI card

[Pedro Luis D. L.]

------------------------------------------------------------------ Todas mi=
s chorradas alemanas en: http://carcadiz.blogspot.com ---------------------=
---------------------------------------------

----------------------------------------
> From: jbe@pengutronix.de
> To: linuxppc-embedded@ozlabs.org
> Date: Thu, 15 Nov 2007 15:21:41 +0100
> CC: carcadiz@hotmail.com
> Subject: Re: MPC5200B: Linux does not recognise the external PCI card
>=20
> On Thursday 15 November 2007 14:49, Pedro Luis D. L. wrote:
>>> [...]
>>> 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?
>=20
> Its a NEC USB 2.0 card.
>=20
>> Is its driver supported by the kernel?
>=20
> I think so.
>=20
>> Is it enabled inside the kernel image?
>=20
> But until the card gets recognised it makes no sense to play with the dri=
ver.

Does it? It looks to me that the kernel detects an attached device to the P=
CI interface, but doesn't know wich one.
May that be the reason why it says "PCI: device 0000:00:18.0 has unknown he=
ader type 7f, ignoring."?

>> 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.
>=20
> My kernel is a 2.6.23.1
>=20
> Juergen

Pedro.

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Re: MPC5200B: Linux does not recognise the external PCI card

[Wolfgang Denk]

In message <200711151521.43047.jbe@pengutronix.de> you wrote:
>
> > Which card?
> 
> Its a NEC USB 2.0 card.

Are you absolutely sure that this card is 3.3V clean, i. e. that the
PCI slot on the Lite5200B provides all the needed voltages?

Best regards,

Wolfgang Denk

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