From mboxrd@z Thu Jan 1 00:00:00 1970 From: w.sang@pengutronix.de (Wolfram Sang) Date: Thu, 12 Jan 2012 12:00:11 +0100 Subject: mxs-auart serial driver DMA support? In-Reply-To: <4F0EB5BB.1060008@bluegiga.com> References: <4F0E7EB0.2060906@bluegiga.com> <20120112094244.GA2775@pengutronix.de> <4F0EB5BB.1060008@bluegiga.com> Message-ID: <20120112110010.GF2775@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jan 12, 2012 at 12:28:11PM +0200, Lauri Hintsala wrote: > On 01/12/2012 11:42 AM, Wolfram Sang wrote: > > > >>Any plans to add DMA support for mxs-auart serial driver? I noticed > >>it is impossible to archive full 3.25 Mbs speed with current one. > > > >No plans from our side, currently. > > OK, AUART works fine with 115200 bps but over that it loose data > randomly. I have seen fifo overrun errors during receiving data with > 1Mbs and over. So current driver is unuseful with higher baud rates. Care to send a patch adding this information to Kconfig help text and/or source code? Would be much more useful there, I think. Regards, Wolfram -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: Digital signature URL: