From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Laurent Pinchart <laurentp@cse-semaphore.com>
Cc: mike@compulab.co.il, linuxppc-dev@ozlabs.org
Subject: Re: CPM2 USB host driver
Date: Fri, 30 Nov 2007 15:48:01 +0300 [thread overview]
Message-ID: <20071130124801.GA13141@localhost.localdomain> (raw)
In-Reply-To: <200711301330.25100.laurentp@cse-semaphore.com>
On Fri, Nov 30, 2007 at 01:30:18PM +0100, Laurent Pinchart wrote:
> On Friday 30 November 2007 12:16, Vitaly Bordug wrote:
> > On Fri, 30 Nov 2007 11:45:49 +0100
> >
> > Laurent Pinchart wrote:
> > > Hi everybody,
> > >
> > > Linux USB host support for the CPM, CPM2 and CPM2 pro is far from
> > > complete. Many people showed interest on this list (and on
> > > linuxppc-embedded) in the past, but nobody managed to complete a
> > > driver and get it merged.
> >
> > that is mainly because of its semi-software nature. However, any approach
> > would be helpful I beleive.
>
> The CPM/CPM2 USB host controller does indeed put some pressure on the CPU. The
> PowerQuick III family is much better in that respect as its USB host
> controller is EHCI compliant.
I didn't yet compare with CPM/CPM2, but I wonder if PQIIPro (MPC8360E)
USB controller is similar to cpms?..
I tried to forward-port FHCI from Freescale 2.6.11 kernels. Twice.
But these efforts always stumbled over more important tasks.
--
Anton Vorontsov
email: cbou@mail.ru
backup email: ya-cbou@yandex.ru
irc://irc.freenode.net/bd2
next prev parent reply other threads:[~2007-11-30 12:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-30 10:45 CPM2 USB host driver Laurent Pinchart
2007-11-30 11:16 ` Vitaly Bordug
2007-11-30 12:30 ` Laurent Pinchart
2007-11-30 12:48 ` Anton Vorontsov [this message]
2007-11-30 13:00 ` Vitaly Bordug
2007-11-30 15:28 ` Laurent Pinchart
2007-11-30 16:11 ` Anton Vorontsov
2007-11-30 22:32 ` Arnd Bergmann
2007-11-30 23:18 ` David Brownell
2007-12-02 6:31 ` Mike Rapoport
2007-11-30 13:02 ` Vitaly Bordug
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