Re: uhci on non-x86

[Michael Lorenz <macallan%netbsd.org@localhost>]

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Hello,

On May 13, 2008, at 14:04, Tobias Nygren wrote:

> On Tue, 13 May 2008 13:37:17 -0400
> Michael Lorenz <macallan%netbsd.org@localhost> wrote:

> > I dimly remember a thread about uhci not working very well no non-x86
> > machines.
> > Yesterday I put VIA uhci/ehci board into my O2, connected to a USB
> > harddisk. After torturing it for about 5 minutes with bonnie++ uhci
> > complained about a DMA error and detached both umass and sd.
> > Is this a known problem? I had an ex in there before which worked
> > perfectly fine.
>
> I couldn't get a VIA uhci/ehci board to work reliably on sparc64  
> when I
> tried a couple of months ago. I guess it is a DMA coherency issue.

Is this a hardware issue or some missing busdma_*() goo?

> You could try the "itohy-usb1" branch. I think it's supposed to fix
> such issues. I don't know what the current state of the code is,  
> though.

Probably bitrotted but I'll have a look.

have fun
Michael

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