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

[Julian Margetson]

On 12/21/2015 3:27 PM, Måns Rullgård wrote:
> Julian Margetson <runaway@xxxxxxxx> writes:
>
> > 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?
> > It is working.
> That's good news.  Thanks a lot for helping to test this.
No problem.
If you can influence anyone of the radeon guys to have a look at the 
ring test failure on the Sam460ex again,
I will  be happy to help test in that area as well .

http://lists.freedesktop.org/archives/dri-devel/2013-September/045050.html
https://lists.ozlabs.org/pipermail/linuxppc-dev/2015-February/125060.html



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