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From: venki kaps <venkiece2005@gmail.com>
To: omar.ramirez@ti.com, h-kanigeri2@ti.com, ameya.palande@nokia.com,
	fernando.lugo@ti.com, x0hebbar@ti.com, ernesto@ti.com,
	felipe.contreras@gmail.com, s-anna@ti.com, grgupta@ti.com,
	ivan.gomez@ti.com, ext-andriy.shevchenko@nokia.com,
	x0095078@ti.com, deepak.chitriki@ti.com, nm@ti.com,
	ext-phil.2.carmody@nokia.com, ohad@wizery.com,
	devel@driverdev.osuosl.org, linux-omap@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: OMAP3 DSP MMU fault + off mode issue
Date: Tue, 14 Sep 2010 20:54:22 +0530	[thread overview]
Message-ID: <AANLkTimd_sRpOYaurOT0iSbfd0pMZvhxgUcaqbQvSobu@mail.gmail.com> (raw)
In-Reply-To: <AANLkTikHM+o_FCgnVzGhs8UtQ_geXFzKNQpGSZiEN7sx@mail.gmail.com>

On Tue, Sep 14, 2010 at 1:28 AM, venki kaps <venkiece2005@gmail.com> wrote:
> Dear all,
>
> I have been facing an issue with OMAP3 PM with DSP MMU Fault (Kernel 2.6.32).
>
> The issue is describing as below mentioned way,
>        1). The Device is getting DSP MMU Fault when playing MP4 video clip.
>
> The system is not hitting off mode in the below scenario,
>        2). System boot ->play mp4 clip ->DSP MMU Fault -> allow off
> mode -----------> Never hits off mode
>
> But surprisingly the system is hitting off mode in the below scenario,
>       3). System boot ->allow off mode ->play mp4 clip ->DSP MMU
> Fault -> allow off mode -----------> perfectly works
>
>
>  - Could you please describe the root cause about the above issues 1 & 2?
>  - How could solve the above issues?

I have found the issue with UART3.
In System configuration register (SYSC),-
             IDLEMODE  - Smart idle -------> working scenario  ------>
system hits off mode.
             IDLEMODE  - No idle -------> Non working scenario
------> system never hits off mode.

Could you please explain why UART3 is not able to hit smart idle after
DSP MMU fault ( System boot ->play mp4 clip ->DSP MMU Fault -> allow
off -----------> Never hits off mode).,

Thanks in advance.

> Best Regards,
> Venkii
>

  reply	other threads:[~2010-09-14 15:24 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-13 19:58 OMAP3 DSP MMU fault + off mode issue venki kaps
2010-09-14 15:24 ` venki kaps [this message]
2010-09-15 13:55   ` venki kaps
2010-09-15 13:55   ` venki kaps
2010-09-15 14:32     ` Kevin Hilman
2010-09-15 14:32       ` Kevin Hilman
2010-09-15 15:42       ` venki kaps
2010-09-15 15:42         ` venki kaps
2010-09-15 16:03         ` venki kaps
2010-09-15 16:03           ` venki kaps
2010-09-15 22:34           ` Felipe Contreras
2010-09-15 22:34             ` Felipe Contreras
2010-09-16  2:59             ` venki kaps
2010-09-16  2:59               ` venki kaps
2010-09-15 15:39     ` Ramirez Luna, Omar
2010-09-15 15:39     ` Ramirez Luna, Omar
2010-09-14 15:24 ` venki kaps
2010-09-13 19:58 venki kaps

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