Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759408AbaJ3Ljv (ORCPT ); Thu, 30 Oct 2014 07:39:51 -0400 Received: from down.free-electrons.com ([37.187.137.238]:50007 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1758827AbaJ3Ljt (ORCPT ); Thu, 30 Oct 2014 07:39:49 -0400 From: Gregory CLEMENT To: Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Gregory CLEMENT Cc: Thomas Petazzoni , Ezequiel Garcia , linux-arm-kernel@lists.infradead.org, Lior Amsalem , Tawfik Bayouk , Nadav Haklai , linux-kernel@vger.kernel.org Subject: [PATCH v2 0/4] Hot plug support for the Armada 38x SoCs Date: Thu, 30 Oct 2014 12:39:40 +0100 Message-Id: <1414669184-16785-1-git-send-email-gregory.clement@free-electrons.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This patch set is the second version of the series adding the hot plug and also kexec support for the Armada 38x Socs. If nobody object we could push them in linux-next. The first patch was done in order to have the same code between Armada XP and the Cortex A9 based mvebu SoCs. In order to ensure the the backward compatibility for the device tree, it is only a preliminary work for it. The second patch moves the SCU power up sequence in a dedicated assembly function. It was done in order to reuse it in the 3rd patch. The third patch fixes the secondary startup for the cortex A9 mvebu SoC. Indeed, the initial code was written with the assumption the SCU will be always power on, which is not only true especially in the kexec case. These 2 patches may worth to be pushed to the stable kernel. Then the last patch adds the CPU hotplug support for Armada 38x. I tested the hotplug using the /sys/devices/system/cpu/cpu1/online virtual file. I also tested the kexec feature and managed to switch to a new kernel using kexec. Thanks, Gregory Changelog: v1 -> v2: - Fix typo and improve the comment explaining why we need to keep the .smp filed in the 1st patch. - Add a prefix to the function power_up_scu function to keep it private and not "pollute" the global namespace. Gregory CLEMENT (4): ARM: mvebu: Clean-up the Armada XP support ARM: mvebu: Move SCU power up in a function ARM: mvebu: Fix the secondary startup for Cortex A9 SoC ARM: mvebu: Implement the CPU hotplug support for the Armada 38x SoCs arch/arm/mach-mvebu/armada-370-xp.h | 6 ----- arch/arm/mach-mvebu/board-v7.c | 5 ++++ arch/arm/mach-mvebu/coherency.c | 1 - arch/arm/mach-mvebu/cpu-reset.c | 1 - arch/arm/mach-mvebu/headsmp-a9.S | 1 + arch/arm/mach-mvebu/platsmp-a9.c | 53 +++++++++++++++++++++++++++++++++++-- arch/arm/mach-mvebu/platsmp.c | 2 ++ arch/arm/mach-mvebu/pmsu.c | 3 +-- arch/arm/mach-mvebu/pmsu.h | 2 ++ arch/arm/mach-mvebu/pmsu_ll.S | 20 +++++++++----- 10 files changed, 75 insertions(+), 19 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/