Hi Greg,
<...>
>> diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
>> index 233c288..343b8de 100644
>> --- a/drivers/usb/host/ehci-q.c
>> +++ b/drivers/usb/host/ehci-q.c
>> @@ -1193,6 +1193,9 @@ static void end_unlink_async (struct ehci_hcd *ehci)
>> ehci->reclaim = NULL;
>> start_unlink_async (ehci, next);
>> }
>> +
>> + if (ehci->has_synopsys_hc_bug)
>> + writel((u32)ehci->async->qh_dma, &ehci->regs->async_next);
>> }
>>
>> /* makes sure the async qh will become idle */
>> diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
>> index ba8eab3..6da85b2 100644
>> --- a/drivers/usb/host/ehci.h
>> +++ b/drivers/usb/host/ehci.h
>> @@ -133,6 +133,7 @@ struct ehci_hcd { /* one per controller */
>> unsigned broken_periodic:1;
>> unsigned fs_i_thresh:1; /* Intel iso scheduling */
>> unsigned use_dummy_qh:1; /* AMD Frame List table quirk*/
>> + unsigned has_synopsys_hc_bug:1; /* Synopsys HC */
>
> That's fine, but who sets this value to 1? I don't see any code that
> does that, so why add this at all? :)
It will be set to 1 by ehci_ath79_init which is in the next patch [1] of this
series.
-Gabor
1. http://marc.info/?l=linux-usb&m=129304988827418&w=2
