From: Heiko Schocher <hs@denx•de>
To: linuxppc-embedded@ozlabs•org
Cc: hlrprasad@tataelxsi•co.in
Subject: Re: Problem in PCI with MPC5200B
Date: Thu, 06 Jul 2006 09:08:15 +0200 [thread overview]
Message-ID: <1152169696.6094.9.camel@Zeus.EmbLux> (raw)
In-Reply-To: <mailman.656.1149719253.11183.linuxppc-embedded@ozlabs.org>
Hello Ram,
On Wed, 7 Jun 2006 11:05:16 +0530 Ram Prasad H L wrote
> hi all,
> We are using a customised board which is based on
> the reference design of lite5200B. But our board is customised by adding
> a PCI-PCI Bridge on the primary bus. On the secondary bus we have added
> a DSP(DM642) along with 2 PCI slots, which are routed through
> bridge (PCI2250) to MPC5200B.
>
> As far as software is concerned we are using "mpc5200_lite_K26-BSP-b30"
> BSP downloaded from freescale's website for lite5200B. This BSP has a
> u-boot-1.1.3 and linux kernel-2.6.11.7. As far as u-boot is concerned
> the PCI devices are allocated and assigned with proper resources (BAR's)
> which come under the range for Mem region(40000000 - 4fffffff) and I/O
> region (50000000 - 50ffffff). But during the boot process of linux we
> are getting the following errors:
>
>
> ****************************************************************************
> ***
> PCI: Probing PCI hardware
> PCI: Cannot allocate resource region 1 of PCI bridge 1
> PCI: bridge 1 resource 1 moved to 4ff00000..4fffffff
> PCI: Cannot allocate resource region 2 of PCI bridge 1
> PCI: bridge 1 resource 2 moved to 4fe00000..4fefffff
> PCI: Failed to allocate mem resource #0: 400000 @ 50000000 for 0000:01:08.0
> PCI: Failed to allocate mem resource #1: 800000 @ 50000000 for 0000:01:08.0
> PCI: Failed to allocate I/O resource #2: 10 @ 1000 for 0000:01:08.0
>
> ****************************************************************************
> ****
I had a similar problem with a 2.4.25 Kernel. I get the following
errors:
PCI: Cannot allocate resource region 0 of device 00:1b.0
PCI: moved device 00:1b.0 resource 0 (200) to e0000000
I solved the problem by adding
hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
at the end of the function mpc5xxx_find_bridges() in
arch/ppc/kernel/mpc5xxx_pci.c
I didnt looked in the 2.6.11.7 Kernel, but maybe this helps you!
Best regards
Heiko
next parent reply other threads:[~2006-07-06 7:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.656.1149719253.11183.linuxppc-embedded@ozlabs.org>
2006-07-06 7:08 ` Heiko Schocher [this message]
2006-06-07 5:35 Problem in PCI with MPC5200B Ram Prasad H L
2006-06-07 10:02 ` Sylvain Munaut
2006-06-30 12:51 ` Ram Prasad H L
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