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

[Simon Glass]

+Stephen

On 26 November 2015 at 03:25, Hans de Goede <hdegoede at redhat.com> wrote:
> Hi,
>
> On 26-11-15 01:38, Stefan Bruens wrote:
>>
>> 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)
>
>
> Hmm, I'm not familiar with the rpi usb controller, but AFAIK the rpi uses
> an onboard usb-2 hub, when talking to usb-1 devices attached to a usb-2
> hub you must address the tt in the first usb-2 hub upstream of the
> usb-1 device. See e.g.:
>
> http://git.denx.de/?p=u-boot.git;a=commitdiff;h=4e2c4ad3604ba6f5053090749d64ed3ce5914805
> http://git.denx.de/?p=u-boot.git;a=commitdiff;h=fcdd8aaa48dfcac492cbac5436d9edc3f5928325
>
> And also, for a controller which AFAICT is closer to the rpi usb controller:
>
> http://git.denx.de/?p=u-boot.git;a=commitdiff;h=e740ca3cab93a8cb31d870bffecd6aa8eadf44e1
>
> Note that the last 2 commits both do a bunch of magic to translate from
> usb_device
> pointers to dm device pointers and back, not sure if the rpi usb controller
> code
> has been converted to dm yet, but if it has that is a likely culprit.
>
> I hope this helps.
>
> Regards,
>
> Hans
>
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