Re: [PATCH 0/3] Wire up USB controllers on fsl-imx6 and fsl-imx6ul

[Guenter Roeck <linux@roeck-us.net>]

On Mon, Mar 09, 2020 at 05:09:21PM +0000, Peter Maydell wrote:
> On Sun, 1 Mar 2020 at 17:04, Guenter Roeck <linux@roeck-us.net> wrote:
> >
> > This patch series wires up the USB controllers on fsl-imx6 and fsl-imx6ul
> > emulations.
> >
> > The first patch is a prerequisite for the following patches. It provides
> > a dummy implementation of a register widely used on i.MX systems, and
> > specifically the reset behavior of this register. This is needed to make
> > the USB ports operational without full implementation of an emulation
> > of its PHY controller.
> >
> > ----------------------------------------------------------------
> > Guenter Roeck (3):
> >       Add dummy i.MXS STMP register support
> >       arm: fsl-imx6ul: Wire up USB controllers
> >       hw/arm/fsl-imx6: Wire up USB controllers
> 
> I'm not a huge fan of the "dummy device that's really just
> implementing 4 registers from the middle of some other
> device" approach. Unless you think we're strongly likely
> to want to use it in other places, I think I'd prefer
> to just implement a (minimal/no-functionality) model of
> the PHY register block.
> 

Sure, no problem; I don't really have a preference. What would be
the best place for such a dummy phy ?

Thanks,
Guenter