From: Wolfgang Denk <wd@denx.de>
To: "KRONSTORFER Horst" <Horst.KRONSTORFER@frequentis.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [QUESTION] MPC834x DMA Support
Date: Thu, 27 Apr 2006 18:27:49 +0200 [thread overview]
Message-ID: <20060427162749.B1984353DAC@atlas.denx.de> (raw)
In-Reply-To: Your message of "Thu, 27 Apr 2006 12:37:19 +0200." <C5BA91F04186584EB68FD42BB4993E6BC1B5C6@FRQWOLEX01.frequentis.frq>
In message <C5BA91F04186584EB68FD42BB4993E6BC1B5C6@FRQWOLEX01.frequentis.frq> you wrote:
>
> does anyone know if the mpc834x's dma unit supports dma operation
> only between pci and csb or also between csb and csb, f.e. devices
> connected via the lbc (f.e. ram and a dsp)?
This should work. We used this to initialize ECC memory. But be
careful about your performance expectations - ask Freescale what you
can get out of memory to memory DMA. [Sorry, I'm still waiting for
replies from FSL myself.]
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
You speak of courage. Obviously you do not know the difference bet-
ween courage and foolhardiness. Always it is the brave ones who die,
the soldiers.
-- Kor, the Klingon Commander, "Errand of Mercy",
stardate 3201.7
next prev parent reply other threads:[~2006-04-27 16:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-27 10:37 [QUESTION] MPC834x DMA Support KRONSTORFER Horst
2006-04-27 15:25 ` Kumar Gala
2006-04-27 16:27 ` Wolfgang Denk [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-04-27 17:22 KRONSTORFER Horst
2006-04-27 17:23 KRONSTORFER Horst
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