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72 lines
1.8 KiB
72 lines
1.8 KiB
/*
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* Copyright (c) 2017-2021, Arm Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <platform_def.h>
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#include <arch.h>
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#include <asm_macros.S>
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#include <common/bl_common.h>
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#include <el3_common_macros.S>
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.globl bl2_entrypoint
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#if BL2_IN_XIP_MEM
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#define FIXUP_SIZE 0
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#else
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#define FIXUP_SIZE ((BL2_LIMIT) - (BL2_BASE))
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#endif
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func bl2_entrypoint
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/* Save arguments x0-x3 from previous Boot loader */
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mov x20, x0
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mov x21, x1
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mov x22, x2
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mov x23, x3
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el3_entrypoint_common \
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_init_sctlr=1 \
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_warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \
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_secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \
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_init_memory=1 \
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_init_c_runtime=1 \
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_exception_vectors=bl2_el3_exceptions \
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_pie_fixup_size=FIXUP_SIZE
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/* ---------------------------------------------
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* Restore parameters of boot rom
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* ---------------------------------------------
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*/
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mov x0, x20
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mov x1, x21
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mov x2, x22
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mov x3, x23
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/* ---------------------------------------------
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* Perform BL2 setup
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* ---------------------------------------------
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*/
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bl bl2_el3_setup
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#if ENABLE_PAUTH
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/* ---------------------------------------------
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* Program APIAKey_EL1 and enable pointer authentication.
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* ---------------------------------------------
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*/
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bl pauth_init_enable_el3
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#endif /* ENABLE_PAUTH */
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/* ---------------------------------------------
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* Jump to main function.
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* ---------------------------------------------
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*/
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bl bl2_main
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/* ---------------------------------------------
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* Should never reach this point.
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* ---------------------------------------------
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*/
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no_ret plat_panic_handler
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endfunc bl2_entrypoint
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