From: philippe.retornaz@epfl•ch (Philippe Rétornaz)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 1/2] serial/imx: add DMA support
Date: Wed, 16 May 2012 11:37:07 +0200 [thread overview]
Message-ID: <4474267.dxHCC3PlP5@laptop> (raw)
In-Reply-To: <4F9A3831.1020203@freescale.com>
Le vendredi 27 avril 2012 14:09:53 Huang Shijie a ?crit :
> Hi,
>
> >> +/* see the "i.MX61 SDMA Scripts User Manual.doc" for the parameters */
> >
> > I can't see how the manual helps here.
>
> sorry, the comment is in the wrong place. it should placed at
> configuring the `slave_config`.
>
> > Please test this patch at least on one more SoC. There should be nothing
> > i.MX6 specific in here, the fact that the i.MX6 is mentioned several
> > times in the comments make me suspicious.
>
> There are bugs in the UART DMA code in the firmware before the imx6q.
> So we can not test the UART DMA except the imx6q arm2 board.
Does this mean that there is no hope for a working uart dma on imx31 ?
Thanks,
Philippe
next prev parent reply other threads:[~2012-05-16 9:37 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-26 10:37 [PATCH 0/2] add DMA support to uart Huang Shijie
2012-04-26 10:37 ` [PATCH 1/2] serial/imx: add DMA support Huang Shijie
2012-04-26 11:11 ` Russell King - ARM Linux
2012-04-27 7:00 ` Huang Shijie
2012-04-27 8:22 ` Russell King - ARM Linux
2012-04-27 8:38 ` Richard Zhao
2012-04-27 9:46 ` Huang Shijie
2012-04-27 9:50 ` Russell King - ARM Linux
2012-04-27 15:18 ` Huang Shijie
2012-04-27 15:30 ` Russell King - ARM Linux
2012-04-28 8:53 ` Huang Shijie
2012-04-26 12:00 ` Sascha Hauer
2012-04-27 6:09 ` Huang Shijie
2012-05-16 9:37 ` Philippe Rétornaz [this message]
2012-05-16 9:42 ` Huang Shijie
2012-04-27 17:24 ` Arnd Bergmann
2012-04-28 8:54 ` Huang Shijie
2012-04-26 10:37 ` [PATCH 2/2] ARM: MX6q: enable DMA support for UART2 Huang Shijie
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