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List:       uclinux-dev
Subject:    Re: [uClinux-dev] QEMU and ColdFire
From:       Greg Ungerer <gerg () snapgear ! com>
Date:       2012-10-02 0:46:06
Message-ID: 506A394E.5090307 () snapgear ! com
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Hi Ezequiel,

On 10/02/2012 10:29 AM, Ezequiel Garcia wrote:
> On Fri, Sep 28, 2012 at 3:34 AM, Greg Ungerer <gerg@snapgear.com> wrote:
>> It seems QEMU has support for ColdFire, has anyone here been using it?
>>
>> It seems it is a little broken when trying to run the very most recent
>> linux kernels. Here are some patches that will fix that:
>>
>>   http://lists.nongnu.org/archive/html/qemu-devel/2012-09/msg01954.html
>>   http://lists.nongnu.org/archive/html/qemu-devel/2012-09/msg02099.html
>>   http://lists.nongnu.org/archive/html/qemu-devel/2012-09/msg01956.html
>>
>> Those patches applied to the latest qemu git tree, though I suspect
>> they should apply to v1.2 qemu source without too much trouble.
>>
>> Then you can emulate a ColdFire M5208EVB board and run current kernels
>> on it. I have been running linux-3.5 kernels.
>>
>> If you don't want to start up with gdb support then you need to generate
>> a kernel object that contains an initrd (which is not normally generated
>> by the uClinux-dist build system). With that you then simply run it
>> with:
>>
>>    qemu-system-m68k -nographic -machine mcf5208evb -kernel vmlinux
>>
>> Could be kinda useful.
>>
>
> Indeed!
>
> Is this emulating a mmuless machine?

Yes, it is emulating a ColdFire 5208. That is a version 2 ColdFire
core, so no MMU.

Regards
Greg


------------------------------------------------------------------------
Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@snapgear.com
SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
8 Gardner Close,                            FAX:         +61 7 3891 3630
Milton, QLD, 4064, Australia                WEB: http://www.SnapGear.com
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