[U-Boot] [RESEND Patch v3] Atmel : usb : add EHCI driver for Atmel SoC

[Marek Vasut]

Dear Bo Shen,

> Some Atmel SoC support USB EHCI, add the EHCI driver to support it.
> 
> To enable the USB EHCI, add the following configuration options into
> board relative configuration file and remove USB OHCI options.
> 
>     #define CONFIG_USB_EHCI
>     #define CONFIG_USB_EHCI_ATMEL
>     #define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS     2
> 
> Signed-off-by: Bo Shen <voice.shen at atmel.com>
> ---
> Change since v2:
>   Add timeout and change the coding style
> 
> Change since v1:
>   Add WATCHDOG_RESET to avoid infinite loop.

Andreas, wanna apply this?

Best regards,
Marek Vasut