Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758164Ab0LNEuo (ORCPT ); Mon, 13 Dec 2010 23:50:44 -0500 Received: from wolverine02.qualcomm.com ([199.106.114.251]:33664 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758073Ab0LNEul (ORCPT ); Mon, 13 Dec 2010 23:50:41 -0500 X-IronPort-AV: E=McAfee;i="5400,1158,6196"; a="66513327" From: Jeff Ohlstein To: David Brown , Daniel Walker Cc: linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Stepan Moskovchenko , Brian Swetland , Dima Zavin , =?UTF-8?q?Arve=20Hj=F8nnev=E5g?= , David Brown , Daniel Walker , Bryan Huntsman , Russell King Subject: [PATCH v4 2/5] msm: scm-boot: Support for setting cold/warm boot addresses Date: Mon, 13 Dec 2010 20:50:30 -0800 Message-Id: <1292302233-16194-3-git-send-email-johlstei@codeaurora.org> X-Mailer: git-send-email 1.7.3.2 In-Reply-To: <1292302233-16194-1-git-send-email-johlstei@codeaurora.org> References: <1292302233-16194-1-git-send-email-johlstei@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4996 Lines: 126 From: Stepan Moskovchenko Add support for setting the cold boot address of core 1 and the warm boot addresses of cores 0 and 1 using a secure domain call. Signed-off-by: Stepan Moskovchenko --- arch/arm/mach-msm/Makefile | 2 +- arch/arm/mach-msm/scm-boot.c | 39 +++++++++++++++++++++++++++++++++++++++ arch/arm/mach-msm/scm-boot.h | 38 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 78 insertions(+), 1 deletions(-) create mode 100644 arch/arm/mach-msm/scm-boot.c create mode 100644 arch/arm/mach-msm/scm-boot.h diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile index eed503b..34cd0a8 100644 --- a/arch/arm/mach-msm/Makefile +++ b/arch/arm/mach-msm/Makefile @@ -18,7 +18,7 @@ obj-$(CONFIG_MSM_PROC_COMM) += clock.o obj-$(CONFIG_ARCH_QSD8X50) += sirc.o obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o obj-$(CONFIG_MSM_SMD) += last_radio_log.o -obj-$(CONFIG_MSM_SCM) += scm.o +obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o diff --git a/arch/arm/mach-msm/scm-boot.c b/arch/arm/mach-msm/scm-boot.c new file mode 100644 index 0000000..5671d58 --- /dev/null +++ b/arch/arm/mach-msm/scm-boot.c @@ -0,0 +1,39 @@ +/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include +#include + +#include "scm.h" +#include "scm-boot.h" + +/* + * Set the cold/warm boot address for one of the CPU cores. + */ +int scm_set_boot_addr(void *addr, int flags) +{ + struct { + unsigned int flags; + void *addr; + } cmd; + + cmd.addr = addr; + cmd.flags = flags; + return scm_call(SCM_SVC_BOOT, SCM_BOOT_ADDR, + &cmd, sizeof(cmd), NULL, 0); +} +EXPORT_SYMBOL(scm_set_boot_addr); diff --git a/arch/arm/mach-msm/scm-boot.h b/arch/arm/mach-msm/scm-boot.h new file mode 100644 index 0000000..fdc1374 --- /dev/null +++ b/arch/arm/mach-msm/scm-boot.h @@ -0,0 +1,38 @@ +/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of Code Aurora Forum, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __MACH_SCM_BOOT_H +#define __MACH_SCM_BOOT_H + +#define SCM_BOOT_ADDR 0x1 +#define SCM_FLAG_COLDBOOT_CPU1 0x1 +#define SCM_FLAG_WARMBOOT_CPU1 0x2 +#define SCM_FLAG_WARMBOOT_CPU0 0x4 + +int scm_set_boot_addr(void *addr, int flags); + +#endif -- Sent by an employee of the Qualcomm Innovation Center, Inc. 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