From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932221AbcFNSD4 (ORCPT ); Tue, 14 Jun 2016 14:03:56 -0400 Received: from lists.s-osg.org ([54.187.51.154]:51437 "EHLO lists.s-osg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752365AbcFNSDz (ORCPT ); Tue, 14 Jun 2016 14:03:55 -0400 Subject: Re: [GIT PULL 8/8] ARM: defconfig: exynos: Defconfig for v4.8 To: Olof Johansson , Krzysztof Kozlowski References: <1465215933-22709-1-git-send-email-k.kozlowski@samsung.com> <1465215933-22709-9-git-send-email-k.kozlowski@samsung.com> <20160613222423.GA29879@localhost> From: Javier Martinez Canillas Cc: Arnd Bergmann , Kevin Hilman , arm@kernel.org, Marek Szyprowski , Sylwester Nawrocki , Kukjin Kim , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski Message-ID: Date: Tue, 14 Jun 2016 14:03:40 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 MIME-Version: 1.0 In-Reply-To: <20160613222423.GA29879@localhost> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Olof, On 06/13/2016 06:24 PM, Olof Johansson wrote: > On Mon, Jun 06, 2016 at 02:25:33PM +0200, Krzysztof Kozlowski wrote: >> >> The following changes since commit 1a695a905c18548062509178b98bc91e67510864: >> >> Linux 4.7-rc1 (2016-05-29 09:29:24 -0700) >> >> are available in the git repository at: >> >> git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git tags/samsung-defconfig-4.8 >> >> for you to fetch changes up to 4b388071a2235ed8f05d05d069f5a5a29782a8c5: >> >> ARM: exynos_defconfig: Save defconfig on current linux-next (2016-06-06 08:36:55 +0200) >> >> ---------------------------------------------------------------- >> Samsung defconfig update for v4.8: >> 1. Disable big.LITTLE switcher so the cpufreq-dt could be enabled. >> 2. Enable Samsung media platform drivers. >> 3. Enable some board-specific drivers for boards: Trats2, Universal C210. >> 4. Few more minor additions. > > Hmm. So this made me wonder what's used on the 5420/5800 chromebooks, but it You mean as CPUFreq driver? It's used cpufreq-dt as well but the compatible strings for exynos5420/5800 are not registered when the switcher is enabled. > looks like they don't even boot with SMP, at least not the way I boot them > (with u-boot as a chainloaded kernel). > All 8 cores for the Exynos5420/5800 Chromebooks have been brought up via MCPM for a long time in mainline, look for example at Kevin's Peach Pi boot log [0]. This is also true when chainloading u-boot (that's my setup as well), but I see that only one CPU is powered up on your boot farm indeed [1]. I'm using the latest ChromeOS u-boot and chain loading u-boot version 2016.01. > Branch merged. > > > -Olof > [0]: https://storage.kernelci.org/next/next-20160614/arm-exynos_defconfig/lab-baylibre-seattle/boot-exynos5800-peach-pi.html [1]: http://arm-soc.lixom.net/bootlogs/next/next-20160614/pi-arm-exynos_defconfig.html Best regards, -- Javier Martinez Canillas Open Source Group Samsung Research America