Support USB port SAMA5D3

[Sascha Hauer]

Hi,

On Tue, Jun 21, 2016 at 05:26:56PM +0200, ner0 wrote:
> Hi, All!
> 
> I know that it is possible detect usb (mass storage devices) and mount it
> using Barebox.
> 
> I am trying detect a pen drive in a sama5d3 Xplained but it don't work.
> I use the command detect -l  but it seems that USB is not detectable.
> I've taken a look at the file "init.c" but there is no declaration of USB
> ports.
> I have been modifying the code and have added support for USB (basing on
> at91sam9x5k) but can't get it to work.
> The driver started correctly
> atmel-ehci atmel-ehci: USB EHCI 1.00
> when I run "usb" to detect the devices gives me the following message:
> 
> # usb
> USB: scanning bus for devices...
> atmel-ehci atmel-ehci: fail to reset
> 0 USB Device(s) found
> 
> Am I correctly defining the USB port?
> Did I miss something?

I can't find anything obvious in the patch that could be wrong.
Sometimes it helps to have a look at the U-Boot code if there's
something that needs to be configured additionally. Generally the EHCI
driver should work, I use it regularly on i.MX.

Sascha

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