From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.9]) by ozlabs.org (Postfix) with ESMTP id C9883679EA for ; Fri, 28 Apr 2006 02:27:52 +1000 (EST) To: "KRONSTORFER Horst" From: Wolfgang Denk Subject: Re: [QUESTION] MPC834x DMA Support Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Thu, 27 Apr 2006 12:37:19 +0200." Date: Thu, 27 Apr 2006 18:27:49 +0200 Sender: wd@denx.de Message-Id: <20060427162749.B1984353DAC@atlas.denx.de> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , In message 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