From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Date: Thu, 25 Jun 2009 12:47:41 +0300 Subject: [U-Boot] Uboot and ARM SMP support In-Reply-To: <366f00c80906250211k68b0227eh974142af598d1dc7@mail.gmail.com> References: <366f00c80906242103taa38247i76b3e2be6fb85674@mail.gmail.com> <20090625071432.GD11470@game.jcrosoft.org> <366f00c80906250038v48f7aa28hf3b653dcd47b178a@mail.gmail.com> <20090625081012.GE11470@game.jcrosoft.org> <366f00c80906250211k68b0227eh974142af598d1dc7@mail.gmail.com> Message-ID: <4A4347BD.9090903@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Sudeep K N said the following on 06/25/2009 12:11 PM: > Sorry, may be I confused you. > I indent to use only one core for u-boot. > I wanted to ask whether we need to update the cache > management to boot for ARM Cortex A9 SMP if we take > ARM Cortex A8 code as base. > I have tried and did not require any change on top of A8 code > to run u-boot on A9 SMP. > Is that right approach? > > you may want to see [1] how this was done for OMAP4 (which has a SMP cortex A9)-> we can discuss how to setup cortex_a9 in mainline u-boot. My thought would be: cpu/arm_cortexa9 - considering that a9 cores could be from 1 to 4 or so if my memory serves right -> btw, I wonder how SMP handling is done in u-boot today.. Regards, Nishanth Menon Ref: [1] http://git.omapzoom.org/?p=repo/u-boot.git;a=tree;h=refs/heads/omap4_dev;hb=refs/heads/omap4_dev