Re: [RFC PATCH 3/4] usb: dwc3: add quirk to be compatible for AMD NL

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Hi,

On Fri, Oct 10, 2014 at 05:25:34PM +0800, Huang Rui wrote:
> > > I enabled dwc3 and gadget debug/verbose configuration, the whole testing dmesg
> > 
> > oh, that's why it's so slow :-) I'm getting over 30MB/sec with a Cortex
> > A9 :-)
> > 
> 
> Yes, maybe have two reasons:
> 1) The input clock is much slower than SOC's.
> 2) I used high speed mode.

right, i'm running at highspeed too.

> Because of the timing issue on FPGA, bulk write transfer would get
> stuck when use more than 1MB (can pass on small file write) on super
> speed mode. (Gadget Zero failed on 1/3/5/7 with 10s timeout)

These shouldn't fail. I'll leave testusb running tonight.

> > > Do you want to see the whole testing dmesg, with which debug level
> > > enablement?
> > 
> > This is good for me, thank you.
> 
> The test log with booting is attached. Please review.

will do.

> > ps: FYI, I left my board running overnight the same test. It has been
> > pretty stable so far.
> > 
> 
> High speed mode is stable in my FPGA board, but super speed is not
> at current.

weird. Got any logs ? If you want to share logs I can probably help you
debugging that.

-- 
balbi

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