1 /* 2 * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <common/bl_common.h> 10 #include <common/desc_image_load.h> 11 #include <plat/arm/common/plat_arm.h> 12 13 #if JUNO_AARCH32_EL3_RUNTIME 14 /******************************************************************************* 15 * This function changes the spsr for BL32 image to bypass 16 * the check in BL1 AArch64 exception handler. This is needed in the aarch32 17 * boot flow as the core comes up in aarch64 and to enter the BL32 image a warm 18 * reset in aarch32 state is required. 19 ******************************************************************************/ arm_bl2_plat_handle_post_image_load(unsigned int image_id)20int arm_bl2_plat_handle_post_image_load(unsigned int image_id) 21 { 22 int err = arm_bl2_handle_post_image_load(image_id); 23 24 if (!err && (image_id == BL32_IMAGE_ID)) { 25 bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id); 26 assert(bl_mem_params); 27 bl_mem_params->ep_info.spsr = SPSR_64(MODE_EL3, MODE_SP_ELX, 28 DISABLE_ALL_EXCEPTIONS); 29 } 30 31 return err; 32 } 33 #endif /* JUNO_AARCH32_EL3_RUNTIME */ 34