On Fri, 2016-10-28 at 19:14 +0300, Antti Seppälä wrote:
> On 28 October 2016 at 17:30, Ben Mulvihill <ben.mulvih...@gmail.com> wrote:
> > Add device tree binding for dwc2 usb driver on lantiq danube
> >
> > Signed-off-by: Ben Mulvihill <ben.mulvih...@gmail.com>
> > ---
> > diff -uprN a/target/linux/lantiq/dts/danube.dtsi
> > b/target/linux/lantiq/dts/danube.dtsi
> > --- a/target/linux/lantiq/dts/danube.dtsi 2016-10-27
> > 19:56:07.090392399 +0200
> > +++ b/target/linux/lantiq/dts/danube.dtsi 2016-10-27
> > 20:47:34.387511522 +0200
> > @@ -140,7 +140,7 @@
> > };
> >
> > ifxhcd@E101000 {
> > - compatible = "lantiq,ifxhcd-danube";
> > + compatible = "lantiq,ifxhcd-danube",
> > "lantiq,ifxhcd-danube-dwc2";
> > reg = <0xE101000 0x1000
> > 0xE120000 0x3f000>;
> > interrupt-parent = <&icu0>;
> >
> >
>
> Hi.
>
> Have you tried if danube can simply be compatible with vanilla "snps,dwc2"?
>
> The main reason we created our own definition for lantiq is that arx
> and xrx have fifo sizes smaller than what the dwc2 autodetection
> mechanism expects.
> I remember finding some references in ifxhcd code which would suggest
> that danube had bigger fifo and thus would maybe work without any
> special treatment.
>
> Br,
I'm pretty sure I tried it, but must have been a couple of years
ago and I can't remember why it didn't work. I'll have another go.
Thanks for the suggestion,
Ben
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