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/*
* Copyright (c) 2016, 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 <arch.h>
#include <asm_macros.S>
#include <bl_common.h>
#include <context.h>
#include <el3_common_macros.S>
#include <smcc_helpers.h>
#include <smcc_macros.S>
.globl bl1_vector_table
.globl bl1_entrypoint
/* -----------------------------------------------------
* Setup the vector table to support SVC & MON mode.
* -----------------------------------------------------
*/
vector_base bl1_vector_table
b bl1_entrypoint
b report_exception /* Undef */
b bl1_aarch32_smc_handler /* SMC call */
b report_exception /* Prefetch abort */
b report_exception /* Data abort */
b report_exception /* Reserved */
b report_exception /* IRQ */
b report_exception /* FIQ */
/* -----------------------------------------------------
* bl1_entrypoint() is the entry point into the trusted
* firmware code when a cpu is released from warm or
* cold reset.
* -----------------------------------------------------
*/
func bl1_entrypoint
/* ---------------------------------------------------------------------
* If the reset address is programmable then bl1_entrypoint() is
* executed only on the cold boot path. Therefore, we can skip the warm
* boot mailbox mechanism.
* ---------------------------------------------------------------------
*/
el3_entrypoint_common \
_set_endian=1 \
_warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \
_secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \
_init_memory=1 \
_init_c_runtime=1 \
_exception_vectors=bl1_vector_table
/* -----------------------------------------------------
* Perform early platform setup & platform
* specific early arch. setup e.g. mmu setup
* -----------------------------------------------------
*/
bl bl1_early_platform_setup
bl bl1_plat_arch_setup
/* -----------------------------------------------------
* Jump to main function.
* -----------------------------------------------------
*/
bl bl1_main
/* -----------------------------------------------------
* Jump to next image.
* -----------------------------------------------------
*/
/*
* MMU needs to be disabled because both BL1 and BL2 execute
* in PL1, and therefore share the same address space.
* BL2 will initialize the address space according to its
* own requirement.
*/
bl disable_mmu_icache_secure
stcopr r0, TLBIALL
dsb sy
isb
/* Get the cpu_context for next BL image */
bl cm_get_next_context
/* Restore the SCR */
ldr r2, [r0, #CTX_REGS_OFFSET + CTX_SCR]
stcopr r2, SCR
isb
/*
* Get the smc_context for next BL image,
* program the gp/system registers and exit
* secure monitor mode
*/
bl smc_get_next_ctx
smcc_restore_gp_mode_regs
eret
endfunc bl1_entrypoint