14f6ad66aSAchin Gupta/* 2*cd7d6b0eSAntonio Nino Diaz * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved. 34f6ad66aSAchin Gupta * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 54f6ad66aSAchin Gupta */ 64f6ad66aSAchin Gupta 7c10bd2ceSSandrine Bailleux#include <arch.h> 852010cc7SSandrine Bailleux#include <el3_common_macros.S> 94f6ad66aSAchin Gupta 109f98aa1aSJeenu Viswambharan .globl bl1_entrypoint 114f6ad66aSAchin Gupta 124f6ad66aSAchin Gupta 134f6ad66aSAchin Gupta /* ----------------------------------------------------- 149f98aa1aSJeenu Viswambharan * bl1_entrypoint() is the entry point into the trusted 154f6ad66aSAchin Gupta * firmware code when a cpu is released from warm or 164f6ad66aSAchin Gupta * cold reset. 174f6ad66aSAchin Gupta * ----------------------------------------------------- 184f6ad66aSAchin Gupta */ 194f6ad66aSAchin Gupta 200a30cf54SAndrew Thoelkefunc bl1_entrypoint 21bf031bbaSSandrine Bailleux /* --------------------------------------------------------------------- 22bf031bbaSSandrine Bailleux * If the reset address is programmable then bl1_entrypoint() is 23bf031bbaSSandrine Bailleux * executed only on the cold boot path. Therefore, we can skip the warm 24bf031bbaSSandrine Bailleux * boot mailbox mechanism. 25bf031bbaSSandrine Bailleux * --------------------------------------------------------------------- 26bf031bbaSSandrine Bailleux */ 2752010cc7SSandrine Bailleux el3_entrypoint_common \ 2818f2efd6SDavid Cunado _init_sctlr=1 \ 29bf031bbaSSandrine Bailleux _warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \ 30a9bec67dSSandrine Bailleux _secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \ 3152010cc7SSandrine Bailleux _init_memory=1 \ 3252010cc7SSandrine Bailleux _init_c_runtime=1 \ 3352010cc7SSandrine Bailleux _exception_vectors=bl1_exceptions 344f6ad66aSAchin Gupta 35*cd7d6b0eSAntonio Nino Diaz /* -------------------------------------------------------------------- 36*cd7d6b0eSAntonio Nino Diaz * Perform BL1 setup 37*cd7d6b0eSAntonio Nino Diaz * -------------------------------------------------------------------- 384f6ad66aSAchin Gupta */ 39*cd7d6b0eSAntonio Nino Diaz bl bl1_setup 40dbad1bacSVikram Kanigiri 41*cd7d6b0eSAntonio Nino Diaz /* -------------------------------------------------------------------- 42*cd7d6b0eSAntonio Nino Diaz * Enable pointer authentication 43*cd7d6b0eSAntonio Nino Diaz * -------------------------------------------------------------------- 44*cd7d6b0eSAntonio Nino Diaz */ 45*cd7d6b0eSAntonio Nino Diaz#if ENABLE_PAUTH 46*cd7d6b0eSAntonio Nino Diaz mrs x0, sctlr_el3 47*cd7d6b0eSAntonio Nino Diaz orr x0, x0, #SCTLR_EnIA_BIT 48*cd7d6b0eSAntonio Nino Diaz msr sctlr_el3, x0 49*cd7d6b0eSAntonio Nino Diaz isb 50*cd7d6b0eSAntonio Nino Diaz#endif /* ENABLE_PAUTH */ 51*cd7d6b0eSAntonio Nino Diaz 52*cd7d6b0eSAntonio Nino Diaz /* -------------------------------------------------------------------- 53dbad1bacSVikram Kanigiri * Initialize platform and jump to our c-entry point 547baff11fSYatharth Kochar * for this type of reset. 55*cd7d6b0eSAntonio Nino Diaz * -------------------------------------------------------------------- 56dbad1bacSVikram Kanigiri */ 57dbad1bacSVikram Kanigiri bl bl1_main 587baff11fSYatharth Kochar 59*cd7d6b0eSAntonio Nino Diaz /* -------------------------------------------------------------------- 60*cd7d6b0eSAntonio Nino Diaz * Disable pointer authentication before jumping to BL31 or that will 61*cd7d6b0eSAntonio Nino Diaz * cause an authentication failure during the early platform init. 62*cd7d6b0eSAntonio Nino Diaz * -------------------------------------------------------------------- 63*cd7d6b0eSAntonio Nino Diaz */ 64*cd7d6b0eSAntonio Nino Diaz#if ENABLE_PAUTH 65*cd7d6b0eSAntonio Nino Diaz mrs x0, sctlr_el3 66*cd7d6b0eSAntonio Nino Diaz bic x0, x0, #SCTLR_EnIA_BIT 67*cd7d6b0eSAntonio Nino Diaz msr sctlr_el3, x0 68*cd7d6b0eSAntonio Nino Diaz isb 69*cd7d6b0eSAntonio Nino Diaz#endif /* ENABLE_PAUTH */ 70*cd7d6b0eSAntonio Nino Diaz 717baff11fSYatharth Kochar /* -------------------------------------------------- 727baff11fSYatharth Kochar * Do the transition to next boot image. 737baff11fSYatharth Kochar * -------------------------------------------------- 747baff11fSYatharth Kochar */ 757baff11fSYatharth Kochar b el3_exit 768b779620SKévin Petitendfunc bl1_entrypoint 77