Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759286Ab2BOOhH (ORCPT ); Wed, 15 Feb 2012 09:37:07 -0500 Received: from mail-bk0-f46.google.com ([209.85.214.46]:55313 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754257Ab2BOOhC (ORCPT ); Wed, 15 Feb 2012 09:37:02 -0500 Message-ID: <4F3BC30A.4030301@monstr.eu> Date: Wed, 15 Feb 2012 15:36:58 +0100 From: Michal Simek Reply-To: monstr@monstr.eu User-Agent: Thunderbird 2.0.0.22 (X11/20090625) MIME-Version: 1.0 To: Ohad Ben-Cohen CC: LKML , John Williams , linux-arm , "Grosen, Mark" , Arnd Bergmann , Grant Likely , devicetree-discuss@lists.ozlabs.org Subject: Re: remoteproc: Load coprocessor code to the specific main memory location References: <4F1EE861.4030405@monstr.eu> <4F1FF870.3000105@monstr.eu> <4F200F64.9060203@monstr.eu> <4F212E9E.9060807@monstr.eu> <4F391C1D.9020402@monstr.eu> <4F3BA962.9040109@monstr.eu> In-Reply-To: <4F3BA962.9040109@monstr.eu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1635 Lines: 51 Michal Simek wrote: > Ohad Ben-Cohen wrote: >> On Mon, Feb 13, 2012 at 3:20 PM, Michal Simek wrote: >>> Here is how it is achieve >>> ret = dma_declare_coherent_memory(&zynq_freertos.dev, 0, >>> 0, 0x10000000, DMA_MEMORY_MAP); >>> >>> which is fully compatible with remoteproc. >> >> Great, this is what we've been doing with davinci too. > > Cool. > >> >>> Do you have any example of using it? >> >> What exactly are you looking for ? RTOS or Linux side ? > > Both side will be great. Rtos is freertos. > >> >> On the Linux side, you can just make the rpmsg sample work (it's part >> of the rpmsg patch set). For the RTOS side, feel free to just take our >> code (it's BSD licensed and hosted on github) and adapt it to your >> environment. > > You mean that server_sample and rpmsg_omx right? > I have also found rpmsg-omx demo application. > What I am missing is how to probe rpmsg bus. > Do you have any working example? > > Communication between cpus is done through swirqs. I have test sending > it from linux to rtos. ok. How that rpmsg channels are created? Is it based on data sent from remoteproc? Or based on resource table? Thanks, Michal -- Michal Simek, Ing. (M.Eng) w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/ Microblaze U-BOOT custodian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/