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Date: Wed, 06 May 2015 18:12:51 +0200 From: Sebastian Andrzej Siewior <bigeasy@...utronix.de> To: Nicolae Rosia <nicolae.rosia@...il.com>, jiwang <jiada_wang@...tor.com> CC: 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 06:08 PM, Nicolae Rosia wrote: > Hi, > I believe I'm also affected by this BUG. I'm receiving lots of 0 and 1 > (ASCII, as presented by cat /dev/ttymxcX) and RX buffer is > overflowing. > >> the firmware only supports imx6 series, AFAIK, >> I checked with Freescale imx6 support team, due to >> licensing issue, I am not entitled to upstream FSL SDMA firmware. >> so seems currently disable SDMA support for uart is our only option >> at the moment. >> > > Have you submited a patch for this issue? > How do I disable SDMA? 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. > Best regards, > Nicolae Rosia Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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