From: bigeasy@linutronix.de (Sebastian Andrzej Siewior)
To: linux-arm-kernel@lists.infradead.org
Subject: [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@csclub.uwaterloo.ca>
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
next prev parent reply other threads:[~2014-11-13 18:34 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-29 18:06 [PATCH 00/13 v10] omap 8250 based UART + DMA Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 01/13] tty: serial: 8250: Fix wording in runtime-PM comments Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 02/13] tty: serial: 8250: make serial8250_console_setup() non _init Sebastian Andrzej Siewior
2014-09-30 20:27 ` Peter Hurley
2014-09-29 18:06 ` [PATCH 03/13] tty: serial: Add 8250-core based omap driver Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 04/13] tty: serial: 8250_dma: handle error on TX submit Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 05/13] tty: serial: 8250_dma: keep own book keeping about RX transfers Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 06/13] tty: serial: 8250: allow to use custom DMA implementation Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 07/13] tty: serial: 8250_omap: add custom DMA-TX callback Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 08/13] tty: serial: 8250_omap: add custom DMA-RX callback Sebastian Andrzej Siewior
2014-09-29 18:06 ` [PATCH 09/13] dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause() Sebastian Andrzej Siewior
2014-10-01 12:00 ` Peter Ujfalusi
2014-10-15 15:27 ` Vinod Koul
2014-10-15 15:28 ` Vinod Koul
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
2014-11-04 19:00 ` Lennart Sorensen
2014-11-04 18:33 ` Lennart Sorensen
2014-11-04 21:03 ` Lennart Sorensen
2014-11-05 1:15 ` Lennart Sorensen
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
2014-11-13 18:34 ` Sebastian Andrzej Siewior [this message]
2014-11-13 22:08 ` Lennart Sorensen
2014-09-29 18:06 ` [PATCH 12/13] tty: serial: 8250: omap: add custom irq handling Sebastian Andrzej Siewior
2014-10-09 13:19 ` Heikki Krogerus
2014-09-29 18:06 ` [PATCH 13/13] tty: serial: 8250: omap: add dma support Sebastian Andrzej Siewior
2014-10-02 16:43 ` [PATCH 00/13 v10] omap 8250 based UART + DMA Tony Lindgren
2014-10-02 23:19 ` Sebastian Andrzej Siewior
2014-10-03 13:08 ` Peter Hurley
2014-11-06 3:14 ` Greg KH
2014-11-06 10:27 ` Sebastian Andrzej Siewior
2014-11-10 17:24 ` Tony Lindgren
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