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Date: Mon, 21 Dec 2015 15:19:44 -0400 From: Julian Margetson <runaway@...dw.ms> To: Måns Rullgård <mans@...sr.com> Cc: Andy Shevchenko <andy.shevchenko@...il.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Tejun Heo <tj@...nel.org>, linux-ide@...r.kernel.org, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 1/3] ata: sata_dwc_460ex: use "dmas" DT property to find dma channel On 12/21/2015 2:27 PM, Måns Rullgård wrote: > Julian Margetson <runaway@...dw.ms> writes: > >> On 12/21/2015 1:55 PM, Andy Shevchenko wrote: >>> On Mon, Dec 21, 2015 at 7:26 PM, Julian Margetson <runaway@...dw.ms> wrote: >>>> On 12/21/2015 12:48 PM, Andy Shevchenko wrote: >>>>> On Sun, 2015-12-20 at 22:55 +0200, Andy Shevchenko wrote: >>>>>> On Sun, Dec 20, 2015 at 10:17 PM, Andy Shevchenko >>>>>> <andy.shevchenko@...il.com> wrote: >>>>>>> On Sun, Dec 20, 2015 at 8:49 PM, Måns Rullgård <mans@...sr.com> >>>>>>> wrote: >>>>>>> I noticed thanks to DWC_PARAMS that burst size is hardcoded to 32 >>>>>>> items on this board, however registers for SATA program it to 64. I >>>>>>> remember that I got no interrupt when I programmed transfer width >>>>>>> wrongly (64 bits against 32 bits) when I ported dw_dmac to be used >>>>>>> on >>>>>>> Intel SoCs. >>>>>> One more thing, I have a patch to monitor DMA IO, we may check what >>>>>> exactly the values are written / read in DMA. I can share it >>>>>> tomorrow. >>>>> As promised the patch I have to debug IO of DW DMA. Didn't check though >>>>> if it applies cleanly on top of recent vanilla kernel. >>> So, the original driver (with patch from Måns) works, right? >>> >> The hard drive is recognized . >> These system gets unresponsive with USB devices like the mouse and >> keyboard not responding when I start Gparted. > Did you disable the SATA and DMA debug messages? > It is working. -- 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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