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

[Allen Martin]

> > This allows systems to pause autoboot with USB keyboard.  Tested on
> > tegra2 seaboard.
> >
> > Signed-off-by: Allen Martin <amartin at nvidia.com>
> > ---
> >  README               |    5 +++++
> >  arch/arm/lib/board.c |    9 +++++++++
> >  2 files changed, 14 insertions(+), 0 deletions(-)
> 
> This modification is in no way ARM specific, so if we accept it, it must be
> applied to all supported architectures.
> 
Sounds reasonable, I can make patches for other architectures, but I can 
really only test ARM and x86

> Where exacly is this feature nneded?  You don;t enable it in any of 
> the board configurations...

It's intended for systems that use USB keyboard as the primary input device.  
I have a tegra2 device like that, I haven't sent out the patch to enable it yet 
because it depends on Simon Glass's tegra USB patches, which are still in review.

> Also, should we then not auto-enable this if CONFIG_USB_KEYBOARD is set?

Sure, that sounds reasonable.

-Allen
nvpublic