/* * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include #include #include #include #include #include .globl bl1_vector_table .globl bl1_entrypoint /* ----------------------------------------------------- * Setup the vector table to support SVC & MON mode. * ----------------------------------------------------- */ vector_base bl1_vector_table b bl1_entrypoint b report_exception /* Undef */ b bl1_aarch32_smc_handler /* SMC call */ b report_exception /* Prefetch abort */ b report_exception /* Data abort */ b report_exception /* Reserved */ b report_exception /* IRQ */ b report_exception /* FIQ */ /* ----------------------------------------------------- * bl1_entrypoint() is the entry point into the trusted * firmware code when a cpu is released from warm or * cold reset. * ----------------------------------------------------- */ func bl1_entrypoint /* --------------------------------------------------------------------- * If the reset address is programmable then bl1_entrypoint() is * executed only on the cold boot path. Therefore, we can skip the warm * boot mailbox mechanism. * --------------------------------------------------------------------- */ el3_entrypoint_common \ _set_endian=1 \ _warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \ _secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \ _init_memory=1 \ _init_c_runtime=1 \ _exception_vectors=bl1_vector_table /* ----------------------------------------------------- * Perform early platform setup & platform * specific early arch. setup e.g. mmu setup * ----------------------------------------------------- */ bl bl1_early_platform_setup bl bl1_plat_arch_setup /* ----------------------------------------------------- * Jump to main function. * ----------------------------------------------------- */ bl bl1_main /* ----------------------------------------------------- * Jump to next image. * ----------------------------------------------------- */ /* * MMU needs to be disabled because both BL1 and BL2 execute * in PL1, and therefore share the same address space. * BL2 will initialize the address space according to its * own requirement. */ bl disable_mmu_icache_secure stcopr r0, TLBIALL dsb sy isb /* * Get the smc_context for next BL image, * program the gp/system registers and exit * secure monitor mode */ bl smc_get_next_ctx monitor_exit endfunc bl1_entrypoint