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https://github.com/ARM-software/arm-trusted-firmware.git
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dcda29f637
This patch adds support for Firmware update in BL2U for ARM platforms such that TZC initialization is performed on all ARM platforms and (optionally) transfer of SCP_BL2U image on ARM CSS platforms. BL2U specific functions are added to handle early_platform and plat_arch setup. The MMU is configured to map in the BL2U code/data area and other required memory. Change-Id: I57863295a608cc06e6cbf078b7ce34cbd9733e4f
76 lines
3 KiB
C
76 lines
3 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. 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 met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* 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 BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <bl_common.h>
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#include <debug.h>
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#include <plat_arm.h>
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#include "css_scp_bootloader.h"
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/* Weak definition may be overridden in specific CSS based platform */
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#pragma weak bl2u_plat_handle_scp_bl2u
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/* Data structure which holds the SCP_BL2U image info for BL2U */
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static image_info_t scp_bl2u_image_info;
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/*******************************************************************************
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* BL1 can pass platform dependent information to BL2U in x1.
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* In case of ARM CSS platforms x1 contains SCP_BL2U image info.
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* In case of ARM FVP platforms x1 is not used.
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* In both cases, x0 contains the extents of the memory available to BL2U
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******************************************************************************/
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void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
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{
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if (!plat_info)
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panic();
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arm_bl2u_early_platform_setup(mem_layout, plat_info);
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scp_bl2u_image_info = *(image_info_t *)plat_info;
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}
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/*******************************************************************************
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* Transfer SCP_BL2U from Trusted RAM using the SCP Download protocol.
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******************************************************************************/
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int bl2u_plat_handle_scp_bl2u(void)
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{
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int ret;
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INFO("BL2U: Initiating SCP_BL2U transfer to SCP\n");
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ret = scp_bootloader_transfer((void *)scp_bl2u_image_info.image_base,
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scp_bl2u_image_info.image_size);
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if (ret == 0)
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INFO("BL2U: SCP_BL2U transferred to SCP\n");
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else
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ERROR("BL2U: SCP_BL2U transfer failure\n");
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return ret;
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}
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