From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752042Ab1LILT4 (ORCPT ); Fri, 9 Dec 2011 06:19:56 -0500 Received: from hqemgate04.nvidia.com ([216.228.121.35]:5054 "EHLO hqemgate04.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751255Ab1LILTy convert rfc822-to-8bit (ORCPT ); Fri, 9 Dec 2011 06:19:54 -0500 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Fri, 09 Dec 2011 03:19:29 -0800 Date: Fri, 9 Dec 2011 13:19:26 +0200 From: Peter De Schrijver To: Colin Cross CC: Stephen Warren , Grant Likely , Rob Herring , "Randy Dunlap" , Russell King , "Olof Johansson" , Gary King , "devicetree-discuss@lists.ozlabs.org" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-tegra@vger.kernel.org" Subject: Re: [PATCH v6 04/10] arm/tegra: prepare early init for multiple tegra variants Message-ID: <20111209111925.GK27578@tbergstrom-lnx.Nvidia.com> References: <1323348254-29072-1-git-send-email-pdeschrijver@nvidia.com> <1323348254-29072-5-git-send-email-pdeschrijver@nvidia.com> <74CDBE0F657A3D45AFBB94109FB122FF1750B77A7E@HQMAIL01.nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 8BIT In-Reply-To: X-NVConfidentiality: public User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 08, 2011 at 07:29:43PM +0100, Colin Cross wrote: > On Thu, Dec 8, 2011 at 9:57 AM, Stephen Warren wrote: > > Peter De Schrijver wrote at Thursday, December 08, 2011 5:44 AM: > >> This patch splits the early init code in a common and a tegra20 specific part. > >> L2 cache initialization is generalized and discovers the cache associativity > >> at runtime. Also use arm_pm_restart instead of arm_arch_reset and reset the > >> the system using the PMC reset feature rather then the CAR system reset. > > > > This one really should be at least 3 separate patches: > > * s/tegra_init_early/tegra20_init_early/ in machine descriptions > > * Switch reset mechanism from CAR to PMC > > * tegra_init_cache modifications > > * Not sure if all the ifdef additions go in the above, or if some should be > >  separate? > > > > Still, I think it's probably OK to go in as it is even if it isn't optimal. > > Please at least split out the reset change. Does using the PMC reset > instead of the CAR reset still result in a warm reset, or does it > change to a cold reset? What do you consider a cold reset in the tegra world? Cheers, Peter.