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Date: Sun, 28 Mar 2010 16:07:45 +0300
From: Felix Radensky <felix@embedded-sol.com>
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: Problem with PCI bus rescan on 460EX
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Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
	Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>,
	yinghai@kernel.org, Alex Chiang <achiang@hp.com>, linux-pci@vger.kernel.org
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Hi Ben,

Benjamin Herrenschmidt wrote:
> On Sun, 2010-03-28 at 12:13 +0300, Felix Radensky wrote:
>
>   
>> I've tried Jesse's tree with Yinghai's patches, but they don't seem to help.
>> Memory for bridge is not allocated after insertion of hotplug device and
>> bus rescan. Attached dmesg output in case of success and failure.
>>     
>
> I'd recommend that for now, your platform uses a quirk to manually
> resize the bridge resource to make room for future hotplug on it.
>
> Cheers,
> Ben.
>   

I've submitted a patch to do that. See 
https://patchwork.kernel.org/patch/88769

Felix.