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 #include <bl_common.h> 9 #include <desc_image_load.h> 10 #include <plat_arm.h> 11 12 #if JUNO_AARCH32_EL3_RUNTIME 13 /******************************************************************************* 14 * This function changes the spsr for BL32 image to bypass 15 * the check in BL1 AArch64 exception handler. This is needed in the aarch32 16 * boot flow as the core comes up in aarch64 and to enter the BL32 image a warm 17 * reset in aarch32 state is required. 18 ******************************************************************************/ 19 int bl2_plat_handle_post_image_load(unsigned int image_id) 20 { 21 int err = arm_bl2_handle_post_image_load(image_id); 22 23 if (!err && (image_id == BL32_IMAGE_ID)) { 24 bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id); 25 assert(bl_mem_params); 26 bl_mem_params->ep_info.spsr = SPSR_64(MODE_EL3, MODE_SP_ELX, 27 DISABLE_ALL_EXCEPTIONS); 28 } 29 30 return err; 31 } 32 #endif /* JUNO_AARCH32_EL3_RUNTIME */ 33