1/* 2 * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7#include <arch.h> 8#include <el3_common_macros.S> 9 10 .globl bl1_entrypoint 11 12 13 /* ----------------------------------------------------- 14 * bl1_entrypoint() is the entry point into the trusted 15 * firmware code when a cpu is released from warm or 16 * cold reset. 17 * ----------------------------------------------------- 18 */ 19 20func bl1_entrypoint 21 /* --------------------------------------------------------------------- 22 * If the reset address is programmable then bl1_entrypoint() is 23 * executed only on the cold boot path. Therefore, we can skip the warm 24 * boot mailbox mechanism. 25 * --------------------------------------------------------------------- 26 */ 27 el3_entrypoint_common \ 28 _init_sctlr=1 \ 29 _warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \ 30 _secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \ 31 _init_memory=1 \ 32 _init_c_runtime=1 \ 33 _exception_vectors=bl1_exceptions \ 34 _pie_fixup_size=0 35 36 /* -------------------------------------------------------------------- 37 * Perform BL1 setup 38 * -------------------------------------------------------------------- 39 */ 40 bl bl1_setup 41 42#if ENABLE_PAUTH 43 /* -------------------------------------------------------------------- 44 * Program APIAKey_EL1 and enable pointer authentication. 45 * -------------------------------------------------------------------- 46 */ 47 bl pauth_init_enable_el3 48#endif /* ENABLE_PAUTH */ 49 50 /* -------------------------------------------------------------------- 51 * Initialize platform and jump to our c-entry point 52 * for this type of reset. 53 * -------------------------------------------------------------------- 54 */ 55 bl bl1_main 56 57#if ENABLE_PAUTH 58 /* -------------------------------------------------------------------- 59 * Disable pointer authentication before jumping to next boot image. 60 * -------------------------------------------------------------------- 61 */ 62 bl pauth_disable_el3 63#endif /* ENABLE_PAUTH */ 64 65 /* -------------------------------------------------- 66 * Do the transition to next boot image. 67 * -------------------------------------------------- 68 */ 69 b el3_exit 70endfunc bl1_entrypoint 71