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SoC security setup for CSS platforms in BL1 

This patch adds support for secure setup of the SoC on CSS
platforms in BL1.

This change is required to provide memory access to normal
world images that take part in upcoming Firmware Update feature.

Change-Id: Ib202fb6cb82622c1874b700637d82ea72575e6fe
This commit is contained in:
Yatharth Kochar 2015-10-11 15:03:51 +01:00
parent 5698c5b3db
commit c76e0d13bf
3 changed files with 47 additions and 3 deletions
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45
plat/arm/css/common/css_bl1_setup.c Normal file
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@ -0,0 +1,45 @@
/*
* Copyright (c) 2015, ARM Limited and Contributors. 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 ARM 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
*/
#include <bl_common.h>
#include <debug.h>
#include <plat_arm.h>
#include <soc_css.h>
void bl1_platform_setup(void)
{
arm_bl1_platform_setup();
/*
* Do ARM CSS SoC security setup.
* BL1 needs to enable normal world access to memory.
*/
soc_css_security_setup();
}

2
plat/arm/css/common/css_common.mk
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@ -34,7 +34,7 @@ PLAT_INCLUDES += -Iinclude/plat/arm/css/common \
PLAT_BL_COMMON_SOURCES += plat/arm/css/common/aarch64/css_helpers.S
#BL1_SOURCES +=
BL1_SOURCES += plat/arm/css/common/css_bl1_setup.c
BL2_SOURCES += plat/arm/css/common/css_bl2_setup.c \
plat/arm/css/common/css_mhu.c \

3
plat/arm/soc/common/soc_css.mk
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@ -32,8 +32,7 @@ PLAT_INCLUDES += -Iinclude/plat/arm/soc/common/
#PLAT_BL_COMMON_SOURCES +=
#BL1_SOURCES +=
BL1_SOURCES += plat/arm/soc/common/soc_css_security.c
BL2_SOURCES += plat/arm/soc/common/soc_css_security.c