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/*
* Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <el3_common_macros.S>
.globl bl1_entrypoint
/* -----------------------------------------------------
* 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 \
_init_sctlr=1 \
_warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \
_secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \
_init_memory=1 \
_init_c_runtime=1 \
_exception_vectors=bl1_exceptions
/* --------------------------------------------------------------------
* Perform BL1 setup
* --------------------------------------------------------------------
*/
bl bl1_setup
/* --------------------------------------------------------------------
* Enable pointer authentication
* --------------------------------------------------------------------
*/
#if ENABLE_PAUTH
mrs x0, sctlr_el3
orr x0, x0, #SCTLR_EnIA_BIT
msr sctlr_el3, x0
isb
#endif /* ENABLE_PAUTH */
/* --------------------------------------------------------------------
* Initialize platform and jump to our c-entry point
* for this type of reset.
* --------------------------------------------------------------------
*/
bl bl1_main
/* --------------------------------------------------------------------
* Disable pointer authentication before jumping to BL31 or that will
* cause an authentication failure during the early platform init.
* --------------------------------------------------------------------
*/
#if ENABLE_PAUTH
mrs x0, sctlr_el3
bic x0, x0, #SCTLR_EnIA_BIT
msr sctlr_el3, x0
isb
#endif /* ENABLE_PAUTH */
/* --------------------------------------------------
* Do the transition to next boot image.
* --------------------------------------------------
*/
b el3_exit
endfunc bl1_entrypoint