From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH v5 4/8] arm/dt: probe for platforms via the device tree Date: Tue, 3 May 2011 03:44:01 -0700 Message-ID: <20110503104401.GQ2092@atomide.com> References: <20110429070135.12522.35745.stgit@ponder> <20110429071548.12522.56929.stgit@ponder> <20110502151542.GG2092@atomide.com> <20110502163951.GC9243@atomide.com> <20110502215537.GE10097@ponder.secretlab.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20110502215537.GE10097-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org To: Grant Likely Cc: Nicolas Pitre , devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Russell King , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org * Grant Likely [110502 14:52]: > On Mon, May 02, 2011 at 07:39:54PM +0300, Tony Lindgren wrote: > > > > The cmdline is something that bootloaders typically allow to configure, > > while the other ATAGs are static and should be in the .dts file. > > Once the libfdt code is pulled into to manipulate the command line, > it becomes trivial to parse the rest of the atags too, so this > probably won't make much difference (unless work is done to preparse > the devicetree and provide to the zimage wrapper a direct offset to > the cmdline buffer in the dtb, but that gets hairy and I really don't > want to go down that path). OK, makes sense. > > > Adding a default command line to the .dts file instead of using > > > CONFIG_CMDLINE_FORCE also works. > > > > But that requires carrying extra patches for something that should > > be user configured.. So not so nice for distros. > > Right, so this is only a stop-gap solution. I'll add this to the list > of topics to discuss in the device tree session at Linaro@UDS next > week. Thanks Tony