[U-Boot] [PATCH] usb: hub: allow pgood_delay to be specified via env

[Marek Vasut]

On Monday, April 06, 2015 at 04:05:07 PM, Tim Harvey wrote:
> Some USB devices break the spec and require longer warm-up times. Allow
> the usb_pgood_delay env variable to override the calculated time.
> 
> I have encountered this specficically with several different sized/branded
> USB sticks with VID:PID 058f:6387 (Alcor Micro Corp. Transcend JetFlash)
> where I need to set usb_pgood_delay to 2000ms to make them detectable.
> 
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>

Hi!

this looks like a good idea. I have a hint for improvement -- in case you
get a timeout waiting for the device to be detected, maybe the error message
should mention that you can try setting this env variable and try again ?

Best regards,
Marek Vasut