[U-Boot] [PATCH v2 1/1] USB: EHCI: Initialize multiple USB controllers at once
Marek Vasut
marex at denx.de
Tue Aug 14 19:30:45 CEST 2012
Dear Stephen Warren,
> On 08/13/2012 10:22 PM, Jim Lin wrote:
> > Marek Vasut wrote at Sunday, August 12, 2012 7:47 AM:
> >> Dear Jim Lin,
> >>
> >>> Add support for command line "usb reset" or "usb start" to initialize
> >>> , "usb stop" to stop multiple USB controllers at once.
> >>> Other command like "usb tree" also supports multiple controllers.
>
> ...
>
> >>> +#ifdef CONFIG_USB_KEYBOARD
> >>> + drv_usb_kbd_init();
> >>
> >> Will the keyboard driver survive this?
> >
> > Yes I have tried it after doing the following.
> > 1. Define CONFIG_USB_KEYBOARD, CONFIG_SYS_USB_EVENT_POLL,
> > CONFIG_USB_MULTI, and CONFIG_USB_MAX_CONTROLLER_COUNT 3
> >
> > in config header file like seaboard.h to compile
> >
> > 2. Install USB keyboard
> > 3. Run "usb reset" in u-boot serial console
> > 4. Run "coninfo" to see usbkbd appeared
> > 5. Run "setenv stdin usbkbd"
> > 6. Typing u-boot console command on USB keyboard
>
> I've also tested this on Springbank, which has a built-in USB keyboard
> and an external USB port via a separate host controller, which I
> connected to an Ethernet device, and it appears to all work very well
> for me.
>
> So,
>
> Tested-by: Stephen Warren <swarren at wwwdotorg.org>
Good, thanks! :)
Best regards,
Marek Vasut
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