[U-Boot] Rpi Uboot not working ; USB keyboard undetected

[Stefan Bruens]

On Wednesday 25 November 2015 16:55:54 Sumeet Jauhar wrote:
> Hello All,
> 
> I am new to Rpi and for a project I need to install Uboot for Rpi. For
> starters I installed Raspbian-jessie to the pi and it worked fine. Now I am
> attempting to use uboot but I don't succeed. I am trying to follow the
> instructions http://elinux.org/RPi_U-Boot  and
> http://arrizza.org/wiki/index.php/RPI_U-boot . Here is what i have done so
> far.

There seems to be a problem with the RPi and USB Low-speed and Full-speed 
devices. The following did work (480Mbps capable):

- several USB memory sticks
- USB 3.0/2.0 SDHC card reader
- RTL2832u based DVB-T stick
- Haupage PCTV 290e DVB-T2 stick

Following did not work:
- several mice/keyboards (12Mbps/1.5Mbps)
- several USB/serial adapters
  * PL2303 (12Mbps)
  * Cypress CYC765211 (12Mbps)
- USB audio noname device (12Mbps)

Kind regards,

Stefan

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