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