MPC8360E USB Host Controller Driver
Alex Zeffertt
ajz at cambridgebroadband.com
Fri Sep 8 00:17:07 EST 2006
Li Yang-r58472 wrote:
>> i have a MPC8347E running with the Freescale E(F)HCI driver
>> and Kernel 2.6.17 (Freescale LTIB).
>>
>> Because of this mail, i checked, if there are any periodical
>> interrupts, without real USB payload.
>>
>> The result is: NO
>>
>> If i attach a USB-mouse, i get 5 interrupts.
>> If i remove it again, 1 additional.
>>
>> Nothing else, silence !
>>
>> USB works well with USB 1.1 and 2.0 devices (This was not the
>> case with earlier Kernels, e.g. 2.6.13, because for the
>> switching between 1.1 and 2.0 you need a transaction
>> translator driver).
>
> MPC834x USB is very different from the USB of CPM/QE. It is an
> integrated EHCI controller.
>
So, the question is still open, does the QuiccEngine HCI (a.k.a. FHCI)
generate loading on the PPC core when there is no traffic on the USB?
Alex
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