From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Figa Subject: Re: AFTR does not work on arndale 5250 Date: Tue, 08 Apr 2014 18:13:47 +0200 Message-ID: <5344203B.6080702@samsung.com> References: <533EAE57.1080202@linaro.org> <5343D709.10708@samsung.com> <5344075D.2030203@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mailout4.w1.samsung.com ([210.118.77.14]:38104 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932117AbaDHQNw (ORCPT ); Tue, 8 Apr 2014 12:13:52 -0400 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N3P00GP0ZR07370@mailout4.w1.samsung.com> for linux-samsung-soc@vger.kernel.org; Tue, 08 Apr 2014 17:13:48 +0100 (BST) In-reply-to: <5344075D.2030203@linaro.org> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Daniel Lezcano , Vikas Sajjan Cc: Kukjin Kim , linux-samsung-soc , Tushar Behera , sunil joshi , Chander Kashyap Hi Daniel, Vikas, Chander, On 08.04.2014 16:27, Daniel Lezcano wrote: > On 04/08/2014 03:32 PM, Vikas Sajjan wrote: >> Hi Daniel, >> >> I checked AFTR on v3.14 ( >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/?id=refs/tags/v3.14) >> >> on exynos5250 based chromebook (exynos5250-snow.dtb) >> >> I am able to hotplug CPU1 (echo 0 > >> /sys/devices/system/cpu/cpu1/online). >> I can see, it enters exynos4_enter_core0_aftr() when I hotplug CPU1. > > Hi, > > thanks a lot for your help. > > I reproduced it on my arndale board with linux-samsung/for-next and on > v3.14. > > Used the exynos_defconfig, enabled cpuidle and used exynos5250-arndale.dtb. > You should compare your bootloader versions as this is one of the aspects that can break AFTR support as it relies on kind of ABI between bootloader and kernel. Bets regards, Tomasz