> One final update on this topic: the kernel config was missing the
> CONFIG_USB_EHCI_ROOT_HUB_TT option. It turns out that the USB IP embeded a
> Transaction Translator and there is a check in ehci_halt() that aborts the
> routine in case of a Transaction Translator in the ehci controller. The check
> however only works in the above option is enabled.
Maybe it would be worth detecting this and issuing a warning?
Andrew
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