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From: Wolfgang Denk <wd@denx.de>
To: Kylo Ginsberg <kylo.ginsberg@gmail.com>
Cc: PPC_LINUX <linuxppc-embedded@ozlabs.org>
Subject: Re: MPC885 - USB HCI drivers.
Date: Tue, 17 May 2005 01:27:39 +0200	[thread overview]
Message-ID: <20050516232744.F106DC1512@atlas.denx.de> (raw)
In-Reply-To: Your message of "Mon, 16 May 2005 15:39:07 PDT." <61cc712d050516153941bc3b26@mail.gmail.com>

In message <61cc712d050516153941bc3b26@mail.gmail.com> you wrote:
>
> > My advice: use a _real_ USB controller.
> 
> Are there known problems with CPM-based USB controllers?  I'm

Ummmm... yes, there are. Especially if you want to use it as  a  host
comtroller  (which  is  never  was designed for). Even more, if there
might be other periopherals in your system that might need  a  bit  a
CPM performance. Or ...

No, I better stop here. Please ask your  Freecale  sales  representa-
tive. He may know better. [Or not, maybe.]

> completely new to the subject, but we are designing a board assuming
> we can use the USB controller on an MPC8555E.

You can do that. Anything can be done. But in this case I don't  know
of an efficient way to do it. But my knowledge is limited, obviously.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Man did not weave the web of life; he  is  merely  a  strand  in  it.
Whatever he does to the web, he does to himself.     - Seattle [1854]

  parent reply	other threads:[~2005-05-16 23:27 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-13 12:33 insmod problem Marco Schramel
2005-05-13 12:46 ` Pantelis Antoniou
2005-05-13 13:14   ` Mark Chambers
2005-05-13 13:46     ` Kumar Gala
2005-05-13 17:27       ` MPC885 - USB HCI drivers Guillaume Autran
2005-05-16 21:50         ` Kylo Ginsberg
2005-05-16 22:03           ` Wolfgang Denk
2005-05-16 22:39             ` Kylo Ginsberg
2005-05-16 22:52               ` Dan Malek
2005-05-17  8:28                 ` Jonathan Masel
2005-05-16 23:27               ` Wolfgang Denk [this message]
2005-05-17  6:57                 ` Mike Rapoport
2005-05-17  8:15                   ` Wolfgang Denk
2005-05-17  8:07                     ` Pantelis Antoniou
2005-05-17  9:58                       ` Bryan O'Donoghue
2005-05-17  9:44                         ` Pantelis Antoniou
2005-05-17 11:33                           ` Mike Rapoport
2005-05-17 12:13                             ` Guillaume Autran
2005-06-09 21:19                         ` linux/drivers/net/fec_8xx/* vs. linux/arch/ppc/8xx_io/fec.c Guillaume Autran
2005-06-10  6:43                           ` Pantelis Antoniou
2005-05-17 12:10                       ` MPC885 - USB HCI drivers Guillaume Autran
2005-05-17 18:05                     ` Kylo Ginsberg
2005-05-14  2:55       ` floating point in kernel (Re: insmod problem) Roger Larsson
  -- strict thread matches above, loose matches on Subject: below --
2005-07-27 18:08 MPC885 - USB HCI drivers Bastos Fernandez Alexandre
2005-08-16  1:21 ` Adam Kent
2007-12-20  6:53 Jonathan Journo
2007-12-20 18:41 ` Vitaly Bordug

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