Re: pci_enable_device fails on MPC8541

Bizhan,

I noticed that lspci reports SERR on the secondary side of the bridge
from bus 0 to bus 2.  Do you know what's causing SERR to be asserted?

Kylo

On 8/9/05, Bizhan Gholikhamseh (bgholikh) [off-list ref] wrote:

Hi Kumar,
I am using Linux 2.6.11, u-boot 1.1.2.
I see failure in pci_enable_device with message:
"PCI: Device 0000:02:01.0 not available because of resource collisions"
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I have attached three files:
lspci_output.txt: out put of the "lspci -v"
proc_pci.txt: output of the "cat /proc/pci"
u-boot.txt: output of the "pci command at u-boot"
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Any help greatly appreciated,
Bizhan
-----Original Message-----
From: Kumar Gala [mailto:kumar.gala@freescale.com]
Sent: Monday, August 08, 2005 1:34 PM
To: Bizhan Gholikhamseh (bgholikh)
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: pci_enable_device fails on MPC8541
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Bizhan,
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A few questions:
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1. what kernel version are you using on these boards:
2. can you do an lspci -v on the boards
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- kumar
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On Aug 8, 2005, at 1:12 PM, Bizhan Gholikhamseh \(((bgholikh\))) wrote:
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quoted

Hi All,
I am using two evaluation board from freescale, 8540ADS and MPC8541.
The same PCI driver is being compiled and loaded on both platforms.
The same PCI driver (developed by me) for DSP board compiled and
loaded on both platforms.

When I type: "insmod C6415.ko" on 8541 board, I get the following
error:
"PCI: Device 0000:02:01.0 not available because of resource
collisions"
This messages is because of the execution of the generic PCI Linux
command:
"pci_enable_device(pdev)"
The same API has no problem on 8540ADS.

quoted

From UBOOT I can see my device is on bus 3:

=3D> pci 3
Scanning PCI devices on bus 3
BusDev FUN    VendorID    DeviceID    Device Class    Sub-Class
----------------------------------------------------------------------
--
--------------------
03.01.00            0x104c    0xa106        .........

Any idea why the insmod fails on one board and not on the other one?

Many thanks in advance,
Bizhan

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