[U-Boot] [PATCH] USB: add CONFIG_USB_INIT to autoinitialize USB before main_loop

[Allen Martin]

> > >> Can't you just add "usb reset" to preboot env?
> > >
> > > The point is to be able to use USB keyboard to stop autoboot on
> > > systems where USB keyboard is the primary (or only) input device.
> > > This needs to happen before BOOTCOMMAND gets parsed.
> >
> > I think the "preboot" environment variable already *is* run before
> > starting the autoboot timer?
> 
> Yep.
> 

I also had to stick it before console init because console makes decisions about the input device based on what's been registered when it initializes (at least with iomux turned on, I didn't try it without).

Maybe a better fix is to have console reevaluate things when the usb keyboard driver registers itself?  I'm open to suggestions.

-Allen
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