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msm: scm-boot: Support for setting cold/warm boot addresses
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 <stepanm@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
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2a1eb58a86
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3 changed files with 78 additions and 1 deletions
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@ -18,7 +18,7 @@ obj-$(CONFIG_MSM_PROC_COMM) += clock.o
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obj-$(CONFIG_ARCH_QSD8X50) += sirc.o
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obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
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obj-$(CONFIG_MSM_SMD) += last_radio_log.o
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obj-$(CONFIG_MSM_SCM) += scm.o
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obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o
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obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o
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obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o board-trout-panel.o devices-msm7x00.o
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39
arch/arm/mach-msm/scm-boot.c
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39
arch/arm/mach-msm/scm-boot.c
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@ -0,0 +1,39 @@
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/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include "scm.h"
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#include "scm-boot.h"
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/*
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* Set the cold/warm boot address for one of the CPU cores.
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*/
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int scm_set_boot_addr(phys_addr_t addr, int flags)
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{
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struct {
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unsigned int flags;
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phys_addr_t addr;
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} cmd;
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cmd.addr = addr;
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cmd.flags = flags;
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return scm_call(SCM_SVC_BOOT, SCM_BOOT_ADDR,
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&cmd, sizeof(cmd), NULL, 0);
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}
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EXPORT_SYMBOL(scm_set_boot_addr);
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38
arch/arm/mach-msm/scm-boot.h
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38
arch/arm/mach-msm/scm-boot.h
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@ -0,0 +1,38 @@
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/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Code Aurora Forum, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MACH_SCM_BOOT_H
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#define __MACH_SCM_BOOT_H
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#define SCM_BOOT_ADDR 0x1
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#define SCM_FLAG_COLDBOOT_CPU1 0x1
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#define SCM_FLAG_WARMBOOT_CPU1 0x2
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#define SCM_FLAG_WARMBOOT_CPU0 0x4
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int scm_set_boot_addr(phys_addr_t addr, int flags);
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#endif
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