[coreboot] [SeaBIOS] USB Problems geode lx800

Christian Gmeiner christian.gmeiner at gmail.com
Thu Oct 18 12:25:58 CEST 2012

2012/10/17 Kevin O'Connor <kevin at koconnor.net>:
> On Wed, Oct 17, 2012 at 07:42:33AM +0200, Christian Gmeiner wrote:
>> 2012/10/17 Kevin O'Connor <kevin at koconnor.net>:
>> > On Tue, Oct 16, 2012 at 04:11:08PM +0200, Christian Gmeiner wrote:
>> >> I have made some success to get USB working - current SeaBios ehci
>> >> driver does not support toggling between
>> >> DATA0 and DATA1. Here is my current patch to get a little bit more running:
>> >
>> > The toggle bit should be updated automatically by the controller.  It
>> > should not be necessary to do it manually.  If this is impacting your
>> > results, something subtle must going on.
>> >
>> Maybe you are right (starred at the spec for some minutes), but who
>> updates the toggle bit in the qh?
>> So I think that this line is needed:
>> pipe->qh.token|= (pipe->pipe.toogle?QTD_TOGGLE:0);
> The controller is supposed to update the toggle bit in the qh.  The
> same qh is used for all transfers, so it should already be up to date
> between transfers.  It is possible something subtle is going on here.

USB is finally working :) http://dpaste.com/815054/
But the next problems says hello: handle_hwpic1 irq=0

Some hints?
Christian Gmeiner, MSc

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