From patchwork Wed Jan 28 14:40:20 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 5728471 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id BD5CABF440 for ; Wed, 28 Jan 2015 14:43:17 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BD9F42024F for ; Wed, 28 Jan 2015 14:43:16 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 08FDA20263 for ; Wed, 28 Jan 2015 14:43:15 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YGTnf-0001nI-3s; Wed, 28 Jan 2015 14:40:59 +0000 Received: from bhuna.collabora.co.uk ([93.93.135.160]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YGTnc-0001eH-Dv for linux-arm-kernel@lists.infradead.org; Wed, 28 Jan 2015 14:40:56 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: javier) with ESMTPSA id F1A06600830 From: Javier Martinez Canillas To: arm@kernel.org 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150128_064056_626958_6DCDE7E6 X-CRM114-Status: UNSURE ( 8.84 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: Kevin Hilman , Arnd Bergmann , linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Kukjin Kim , Olof Johansson , Javier Martinez Canillas , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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