From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: [PATCH v1 0/9] OMAP: DMA: hwmod and DMA as platform device Date: Tue, 14 Dec 2010 16:18:09 -0800 Message-ID: <87ipyvriri.fsf@deeprootsystems.com> References: <1291434246-30716-1-git-send-email-manjugk@ti.com> <20101214231922.GC14990@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-yx0-f174.google.com ([209.85.213.174]:35257 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753665Ab0LOASP (ORCPT ); Tue, 14 Dec 2010 19:18:15 -0500 Received: by yxt3 with SMTP id 3so736429yxt.19 for ; Tue, 14 Dec 2010 16:18:13 -0800 (PST) In-Reply-To: <20101214231922.GC14990@atomide.com> (Tony Lindgren's message of "Tue, 14 Dec 2010 15:19:23 -0800") Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Tony Lindgren Cc: "G, Manjunath Kondaiah" , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Benoit Cousson , Santosh Shilimkar Tony Lindgren writes: > * G, Manjunath Kondaiah [101203 19:33]: >> ************************************************************************* >> >> Test Report: >> ************ >> Build: >> omap2plus_defconfig : Success >> omap_osk_5912_defconfig: Success >> >> Boot: >> OMAP3530Beagle : Success >> OMAP4430Blaze(ES2.1) : Success > > Can you please make sure that memory to memory DMA test > runs OK on OSK5912?x > > AFAIK, Kevin tried it a few days ago and it hung. Yes, it hung, but I didn't have time to debug the root cause until today. The reason is that the OMAP1 DMA IRQ numbers used in mach-omap1/dma.c have no basis in reality. So doing a memory-to-memory transfer using *all* channels results in spurious interrupts, then hangs. Will post details in reply to the OMAP1 patch (7/9). Kevin