From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761080AbbA1Uhm (ORCPT ); Wed, 28 Jan 2015 15:37:42 -0500 Received: from bhuna.collabora.co.uk ([93.93.135.160]:46201 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756909AbbA1Uhk (ORCPT ); Wed, 28 Jan 2015 15:37:40 -0500 From: Javier Martinez Canillas To: arm@kernel.org Cc: Olof Johansson , Arnd Bergmann , Kukjin Kim , Kevin Hilman , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Javier Martinez Canillas Subject: [PATCH 1/1] ARM: multi_v7_defconfig: Enable Exynos5420 Multi-Cluster PM support Date: Wed, 28 Jan 2015 15:40:20 +0100 Message-Id: <1422456020-10975-1-git-send-email-javier.martinez@collabora.co.uk> X-Mailer: git-send-email 2.1.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Exynos5420 cluster power management support allowing Exynos 5420/5422/5800 machines to power up and down the secondary CPUs. Without this option enabled, the secondary CPUs are not brought up on boot and the following error is shown: CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 Setting up static identity map for 0x40938e90 - 0x40938f28 ARM CCI driver probed CPU1: failed to boot: -38 CPU2: failed to boot: -38 CPU3: failed to boot: -38 CPU4: failed to boot: -38 CPU5: failed to boot: -38 CPU6: failed to boot: -38 CPU7: failed to boot: -38 Brought up 1 CPUs Signed-off-by: Javier Martinez Canillas --- This patch was tested on an Exynos5420 Peach Pit and with MCPM support enabled, all the 8 CPUs are powered up: Brought up 8 CPUs SMP: Total of 8 processors activated (384.00 BogoMIPS). arch/arm/configs/multi_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index 6e974b6bfa90..e8a4c955241b 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -61,6 +61,7 @@ CONFIG_MACH_SPEAR1310=y CONFIG_MACH_SPEAR1340=y CONFIG_ARCH_STI=y CONFIG_ARCH_EXYNOS=y +CONFIG_EXYNOS5420_MCPM=y CONFIG_ARCH_SUNXI=y CONFIG_ARCH_SIRF=y CONFIG_ARCH_TEGRA=y -- 2.1.3