From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out-124.synserver.de (smtp-out-124.synserver.de [212.40.185.124]) by ozlabs.org (Postfix) with ESMTP id 9D3162C0180 for ; Sun, 14 Jul 2013 20:04:45 +1000 (EST) Message-ID: <51E277E5.8050305@metafoo.de> Date: Sun, 14 Jul 2013 12:05:25 +0200 From: Lars-Peter Clausen MIME-Version: 1.0 To: Gerhard Sittig Subject: Re: [PATCH RFC 1/8] powerpc: mpc512x_dma: add support for data transfers between memory and i/o memory References: <1373642781-32631-1-git-send-email-gsi@denx.de> <1373642781-32631-2-git-send-email-gsi@denx.de> In-Reply-To: <1373642781-32631-2-git-send-email-gsi@denx.de> Content-Type: text/plain; charset=ISO-8859-1 Cc: Arnd Bergmann , Vinod Koul , devicetree-discuss@lists.ozlabs.org, Alexander Popov , Dan Williams , Anatolij Gustschin , linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 07/12/2013 05:26 PM, Gerhard Sittig wrote: [...] ] > + if (mchan->tcd_nunits) > + tcd->nbytes = mchan->tcd_nunits * 4; > + else > + tcd->nbytes = 64; Just wondering where does the magic 64 come from?