Re: [PATCH 1/3] ata: sata_dwc_460ex: use "dmas" DT property to find dma channel

[Julian Margetson]

On 12/21/2015 2:27 PM, Måns Rullgård wrote:
> Julian Margetson <runaway@xxxxxxxx> writes:
>
> > On 12/21/2015 1:55 PM, Andy Shevchenko wrote:
> > > On Mon, Dec 21, 2015 at 7:26 PM, Julian Margetson <runaway@xxxxxxxx> 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@xxxxxxxxx> wrote:
> > > > > > > On Sun, Dec 20, 2015 at 8:49 PM, Måns Rullgård <mans@xxxxxxxxx>
> > > > > > > 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?
Ah. Will try with debug disabled.


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