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 12 #include <plat_arm.h> 13 14 #if JUNO_AARCH32_EL3_RUNTIME 15 /******************************************************************************* 16 * This function changes the spsr for BL32 image to bypass 17 * the check in BL1 AArch64 exception handler. This is needed in the aarch32 18 * boot flow as the core comes up in aarch64 and to enter the BL32 image a warm 19 * reset in aarch32 state is required. 20 ******************************************************************************/ 21 int arm_bl2_plat_handle_post_image_load(unsigned int image_id) 22 { 23 int err = arm_bl2_handle_post_image_load(image_id); 24 25 if (!err && (image_id == BL32_IMAGE_ID)) { 26 bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id); 27 assert(bl_mem_params); 28 bl_mem_params->ep_info.spsr = SPSR_64(MODE_EL3, MODE_SP_ELX, 29 DISABLE_ALL_EXCEPTIONS); 30 } 31 32 return err; 33 } 34 #endif /* JUNO_AARCH32_EL3_RUNTIME */ 35