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 35 /* -------------------------------------------------------------------- 36 * Perform BL1 setup 37 * -------------------------------------------------------------------- 38 */ 39 bl bl1_setup 40 41#if ENABLE_PAUTH 42 /* -------------------------------------------------------------------- 43 * Program APIAKey_EL1 and enable pointer authentication. 44 * -------------------------------------------------------------------- 45 */ 46 bl pauth_init_enable_el3 47#endif /* ENABLE_PAUTH */ 48 49 /* -------------------------------------------------------------------- 50 * Initialize platform and jump to our c-entry point 51 * for this type of reset. 52 * -------------------------------------------------------------------- 53 */ 54 bl bl1_main 55 56#if ENABLE_PAUTH 57 /* -------------------------------------------------------------------- 58 * Disable pointer authentication before jumping to next boot image. 59 * -------------------------------------------------------------------- 60 */ 61 bl pauth_disable_el3 62#endif /* ENABLE_PAUTH */ 63 64 /* -------------------------------------------------- 65 * Do the transition to next boot image. 66 * -------------------------------------------------- 67 */ 68 b el3_exit 69endfunc bl1_entrypoint 70