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Message-ID: <567843B8.1000801@candw.ms>
Date:	Mon, 21 Dec 2015 14:23:52 -0400
From:	Julian Margetson <runaway@...dw.ms>
To:	Andy Shevchenko <andy.shevchenko@...il.com>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Måns Rullgård <mans@...sr.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 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.

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