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bf031bba2b
This patch introduces a new platform build option, called PROGRAMMABLE_RESET_ADDRESS, which tells whether the platform has a programmable or fixed reset vector address. If the reset vector address is fixed then the code relies on the platform_get_entrypoint() mailbox mechanism to figure out where it is supposed to jump. On the other hand, if it is programmable then it is assumed that the platform code will program directly the right address into the RVBAR register (instead of using the mailbox redirection) so the mailbox is ignored in this case. Change-Id: If59c3b11fb1f692976e1d8b96c7e2da0ebfba308
78 lines
3 KiB
ArmAsm
78 lines
3 KiB
ArmAsm
/*
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* Copyright (c) 2013-2015, 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 <arch.h>
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#include <el3_common_macros.S>
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.globl bl1_entrypoint
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/* -----------------------------------------------------
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* bl1_entrypoint() is the entry point into the trusted
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* firmware code when a cpu is released from warm or
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* cold reset.
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* -----------------------------------------------------
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*/
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func bl1_entrypoint
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/* ---------------------------------------------------------------------
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* If the reset address is programmable then bl1_entrypoint() is
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* executed only on the cold boot path. Therefore, we can skip the warm
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* boot mailbox mechanism.
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* ---------------------------------------------------------------------
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*/
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el3_entrypoint_common \
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_set_endian=1 \
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_warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \
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_secondary_cold_boot=1 \
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_init_memory=1 \
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_init_c_runtime=1 \
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_exception_vectors=bl1_exceptions
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/* ---------------------------------------------
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* Architectural init. can be generic e.g.
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* enabling stack alignment and platform spec-
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* ific e.g. MMU & page table setup as per the
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* platform memory map. Perform the latter here
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* and the former in bl1_main.
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* ---------------------------------------------
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*/
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bl bl1_early_platform_setup
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bl bl1_plat_arch_setup
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/* --------------------------------------------------
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* Initialize platform and jump to our c-entry point
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* for this type of reset. Panic if it returns
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* --------------------------------------------------
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*/
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bl bl1_main
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panic:
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b panic
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endfunc bl1_entrypoint
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