Re: Kernel panic with PCI EHCI on AMCC Sequoia

Stefan Roese wrote:
> On Thursday 23 August 2007, Mike Nuss wrote:
> > Yes, but keep in mind I'm not running the mainline kernel 
> here. There
> > are changes to ehci-hcd in the Denx kernel (compared with kernel.org
> > 2.6.22) and I'm not sure how much of that has been merged 
> upstream. I
> > wouldn't think it has been tested heavily outside of Denx's target
> > systems.
> 
> We tried to push all changes upstream. So the DENX version of 
> the ehci driver 
> should be identical to the vanilla version. Please let me 
> know if you find 
> some differences. We should resolve them.

>From a cursory check of the 2.6.23-rc1 tree, I think you are right.

David Brownell wrote:
> It's been years since I've heard of bugs in this code on pure
> big-endian systems though ... makes me think the issue relates
> to the mixed byteorder.  (Although I couldn't rule out a bug
> that just hasn't been reported.)

I'm sure the code in 2.6.22 is just fine, but these are recent changes
that seem to have broken it. Has anyone tested a PCI EHCI controller on
a big-endian system with 2.6.23-rc1? I'm afraid the answer may be no.

Mike

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