linux-kernel - Re: [PATCH v1 11/15] serial: imx: initialized DMA w/o HW flow enabled

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Message-ID: <554A4F9F.9000604@linutronix.de>
Date:	Wed, 06 May 2015 19:30:07 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Nicolae Rosia <nicolae.rosia@...il.com>
CC:	jiwang <jiada_wang@...tor.com>,
	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>,
	gregkh@...uxfoundation.org, jslaby@...e.cz,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	anton_bondarenko@...tor.com, dirk.behme@...bosch.com
Subject: Re: [PATCH v1 11/15] serial: imx: initialized DMA w/o HW flow enabled

On 05/06/2015 06:46 PM, Nicolae Rosia wrote:
> Hi,

Hi,

>> I reverted this patch. I am going to send a revert to Greg tomorrow
>> including why this is done and CC stable. I haven't yet received a
>> working SDMA firmware nor a hint where it is.
> You reverted this patch and it works again?
> I believe it is this one [1], but I will be only able to test tomorrow.

Okay, please inform about your results. I think I had that one and the
result was no UART communication at all and a lot overrun errors.

> [1] http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/firmware/imx/sdma?h=imx_3.14.28_1.0.0_ga
> 
> Best regards,
> Nicolae Rosia
> 
Sebastian
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