linux-kernel - Re: Disable PCI while CONFIG

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Date:	Wed, 13 Apr 2011 17:01:38 -0500
From:	Xianghua Xiao <xiaoxianghua@...il.com>
To:	Randy Dunlap <rdunlap@...otime.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Disable PCI while CONFIG_PCI=y

Yes I read that but my ARCH is arm.

Thanks,

On Wed, Apr 13, 2011 at 3:10 PM, Randy Dunlap <rdunlap@...otime.net> wrote:
> On Wed, 13 Apr 2011 15:05:59 -0500 Xianghua Xiao wrote:
>
>> Is it possible to do something like 'pci=off' to have the same effect
>> as turning of CONFIG_PCI during menuconfig?
>> I want to build one image for both PCIE RC and PCIE EP(endpoint), for
>> EP I do not need PCI to be enabled at all.
>>
>> looking at drivers/pci/pci.c I don't see such option exists, am I
>> missing something?
>
> Hm. Documentation/kernel-parameters.txt says:
>
>
>        pci=option[,option...]  [PCI] various PCI subsystem options:
>                earlydump       [X86] dump PCI config space before the kernel
>                                changes anything
>                off             [X86] don't probe for the PCI bus
>
> What $ARCH are you using?
>
> See arch/x86/pci/common.c::pcibios_setup() for code that handles
>        pci=off
>
> ---
> ~Randy
> *** Remember to use Documentation/SubmitChecklist when testing your code ***
>
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