lkml.org 
[lkml]   [2010]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 2/5] msm: scm-boot: Support for setting cold/warm boot addresses
    Date
    From: Stepan Moskovchenko <stepanm@codeaurora.org>

    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>
    ---
    arch/arm/mach-msm/Makefile | 2 +-
    arch/arm/mach-msm/scm-boot.c | 40 ++++++++++++++++++++++++++++++++++++++++
    arch/arm/mach-msm/scm-boot.h | 38 ++++++++++++++++++++++++++++++++++++++
    3 files changed, 79 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..debacf5
    --- /dev/null
    +++ b/arch/arm/mach-msm/scm-boot.c
    @@ -0,0 +1,40 @@
    +/* 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 <linux/module.h>
    +#include <linux/slab.h>
    +
    +#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.
    The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.


    \
     
     \ /
      Last update: 2010-12-06 08:19    [W:0.035 / U:0.788 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site