From: Sebastian Andrzej Siewior <bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
To: Lennart Sorensen
<lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys@public.gmane.org>
Cc: linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org,
balbi-l0cyMroinI0@public.gmane.org,
gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 11/13] arm: dts: dra7: add DMA properties for UART
Date: Thu, 13 Nov 2014 19:34:09 +0100 [thread overview]
Message-ID: <5464F9A1.9080901@linutronix.de> (raw)
In-Reply-To: <20141105194323.GI24112-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys@public.gmane.org>
On 11/05/2014 08:43 PM, Lennart Sorensen wrote:
> I managed to get something dma related on uart3. But it isn't happy:
>
> [ 95.577401] DMA misaligned error with device 53
> repeated many times.
>
> I wonder if the dma support isn't quite working for the omap572x yet in
> this tree (ti's 3.12.y tree), or maybe it is picky and the driver still
> needs a bit of work.
misaligned dma? I haven't seen any alignment requirement for SDMA/EDMA
and I haven't seen this error on beagle board, am335x-evm or dra7-evm.
> I have had no issues on uart7 and 8 without dma.
So basically what you are saying is that DMA (no matter which channel)
gives you this error and without DMA it works fine?
Sebastian
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next prev parent reply other threads:[~2014-11-13 18:34 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1412014009-13315-1-git-send-email-bigeasy@linutronix.de>
2014-09-29 18:06 ` [PATCH 10/13] arm: dts: am33xx: add DMA properties for UART Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 11/13] arm: dts: dra7: " Sebastian Andrzej Siewior
2014-11-04 17:02 ` Lennart Sorensen
2014-11-04 17:06 ` Sebastian Andrzej Siewior
2014-11-04 17:21 ` Lennart Sorensen
2014-11-04 18:32 ` Javier Martinez Canillas
2014-11-04 18:48 ` Nishanth Menon
[not found] ` <CABxcv=kT+M70Xoyf_z4eQQyM0Oo9S5Y0YeX2R6PbAqxK-JTLLg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-04 19:00 ` Lennart Sorensen
2014-11-04 18:33 ` Lennart Sorensen
2014-11-04 21:03 ` Lennart Sorensen
[not found] ` <20141104210315.GF24112-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys@public.gmane.org>
2014-11-05 1:15 ` Lennart Sorensen
[not found] ` <20141105011506.GG24112-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys@public.gmane.org>
2014-11-05 8:11 ` Sebastian Andrzej Siewior
2014-11-05 15:33 ` Lennart Sorensen
2014-11-05 16:20 ` Lennart Sorensen
2014-11-05 16:30 ` Sebastian Andrzej Siewior
2014-11-05 19:43 ` Lennart Sorensen
[not found] ` <20141105194323.GI24112-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys@public.gmane.org>
2014-11-13 18:34 ` Sebastian Andrzej Siewior [this message]
2014-11-13 22:08 ` Lennart Sorensen
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