Problems in fixup_device function

Problems in fixup_device function

[John Linn]

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I've added some code to virtex_device_fixup and am seeing some strange
side affects.  I've added code to read from an iic device and populate
the mac address including ioremap.  The code works fine, but the side
affects are not fine.

 

Anyone have any experience here?

 

I see the loops_per_jiffy getting hosed like there is some bad code, but
I can't track it down.  It moves around badly, like it can come and go
with printk additions or deletions.

 

I don't know enough about the stack and Linux to know if there could be
a problem there.

 

Thanks,

John


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Re: Problems in fixup_device function

[Grant Likely]

On Thu, Mar 6, 2008 at 12:21 PM, John Linn <John.Linn@xilinx.com> wrote:
>
>
>
>
> I've added some code to virtex_device_fixup and am seeing some strange side
> affects.  I've added code to read from an iic device and populate the mac
> address including ioremap.  The code works fine, but the side affects are
> not fine.

Specifically, what are you trying to do?  Are you modifying the data
in the platform device?

Cheers,
g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.

RE: Problems in fixup_device function

[John Linn]

I am loading the mac address into the data of the platform device.

-- John

-----Original Message-----
From: glikely@secretlab.ca [mailto:glikely@secretlab.ca] On Behalf Of
Grant Likely
Sent: Thursday, March 06, 2008 12:39 PM
To: John Linn
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: Problems in fixup_device function

On Thu, Mar 6, 2008 at 12:21 PM, John Linn <John.Linn@xilinx.com> wrote:
>
>
>
>
> I've added some code to virtex_device_fixup and am seeing some strange
side
> affects.  I've added code to read from an iic device and populate the
mac
> address including ioremap.  The code works fine, but the side affects
are
> not fine.

Specifically, what are you trying to do?  Are you modifying the data
in the platform device?

Cheers,
g.

--=20
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.