From: Scott Wood <scottwood@freescale.com>
To: Ron Madrid <ron_madrid@sbcglobal.net>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: MPC8313: fsl_elbc_nand and MDR
Date: Mon, 26 Apr 2010 13:34:34 -0500 [thread overview]
Message-ID: <4BD5DCBA.9090304@freescale.com> (raw)
In-Reply-To: <681077.39599.qm@web83502.mail.sp1.yahoo.com>
Ron Madrid wrote:
> I am having what appears to be a little conflict
> with this driver, particularly with the MDR. My
> hardware uses NAND flash and an FPGA connected
> through the UPM. After the kernel is up and
> running, sometimes I cannot verify the data in
> the UPM RAM array. I am guessing right now that
> this is due to a use conflict between my
> application and the fsl_elbc_nand driver both
> trying to use the MDR at once.
>
> Is there currently any sort of coordination that
> exists for the MDR in the fsl_elbc_nand driver?
> I have been looking through the code and have
> not been able to find any.
There is not yet any such coordination. The current UPM code does not
use MDR that I can see.
> Any ideas on how to solve this would be
> appreciated as well.
Probably just add a mutex that protects the shared resources.
-Scott
next prev parent reply other threads:[~2010-04-26 18:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-26 18:04 MPC8313: fsl_elbc_nand and MDR Ron Madrid
2010-04-26 18:34 ` Scott Wood [this message]
2010-04-26 19:08 ` Ron Madrid
2010-04-26 19:10 ` Scott Wood
2010-04-26 19:24 ` Ron Madrid
2010-04-26 19:28 ` Scott Wood
2010-04-26 19:29 ` Anton Vorontsov
2010-04-26 23:46 ` Ron Madrid
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