Thread (6 messages) 6 messages, 3 authors, 2016-01-22

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

From: Måns Rullgård <hidden>
Date: 2015-12-21 18:27:54
Also in: lkml

Possibly related (same subject, not in this thread)

Julian Margetson [off-list ref] writes:
On 12/21/2015 1:55 PM, Andy Shevchenko wrote:
quoted
On Mon, Dec 21, 2015 at 7:26 PM, Julian Margetson [off-list ref] wrote:
quoted
On 12/21/2015 12:48 PM, Andy Shevchenko wrote:
quoted
On Sun, 2015-12-20 at 22:55 +0200, Andy Shevchenko wrote:
quoted
On Sun, Dec 20, 2015 at 10:17 PM, Andy Shevchenko
[off-list ref] wrote:
quoted
On Sun, Dec 20, 2015 at 8:49 PM, Måns Rullgård [off-list ref]
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?

-- 
Måns Rullgård
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