From owner-freebsd-usb@FreeBSD.ORG  Tue Jul 14 08:37:04 2009
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From: Hans Petter Selasky <hselasky@c2i.net>
To: Piotr =?iso-8859-2?q?Zi=EAcik?= <kosmo@semihalf.com>
Date: Tue, 14 Jul 2009 10:36:43 +0200
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Cc: Rafal Jaworowski <raj@semihalf.com>, freebsd-arm@freebsd.org,
	thompsa@freebsd.org, freebsd-usb@freebsd.org
Subject: Re: CPU Cache and busdma usage in USB
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On Tuesday 14 July 2009 10:31:10 Piotr Zi=EAcik wrote:
> > 1) My analysis: Only the data areas are being flushed/invalidated. No
> > transfer descriptors are flushed/invalidated. I see no cache operations
> > happening on any DMA control structures, even though there are calls fr=
om
> > EHCI to xxx_pc_flush() and xxx_pc_invalidate().
>

> Probaby you see more on your AT91 device as you know USB stack internals.
> Have you tried to bring up OHCI on you ARM board ?

Not yet. I'm terribly busy with some LibUSB stuff headed for the 8-current=
=20
release. As soon as I find time I will fire off a build and debug.

BTW: Has pmap been fixed for ARM in 8-current?

=2D-HPS