1 /* 2 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 #include <debug.h> 9 #include <desc_image_load.h> 10 #include <platform.h> 11 #include <platform_def.h> 12 #include <string.h> 13 #include <tbbr_img_def.h> 14 15 #if LOAD_IMAGE_V2 16 17 /* 18 * Helper function to load TB_FW_CONFIG and populate the load information to 19 * arg0 of BL2 entrypoint info. 20 */ 21 void arm_load_tb_fw_config(void) 22 { 23 int err; 24 uintptr_t config_base = 0; 25 image_desc_t *image_desc; 26 27 image_desc_t arm_tb_fw_info = { 28 .image_id = TB_FW_CONFIG_ID, 29 SET_STATIC_PARAM_HEAD(image_info, PARAM_IMAGE_BINARY, 30 VERSION_2, image_info_t, 0), 31 .image_info.image_base = ARM_TB_FW_CONFIG_BASE, 32 .image_info.image_max_size = ARM_TB_FW_CONFIG_LIMIT - ARM_TB_FW_CONFIG_BASE, 33 }; 34 35 VERBOSE("BL1: Loading TB_FW_CONFIG\n"); 36 err = load_auth_image(TB_FW_CONFIG_ID, &arm_tb_fw_info.image_info); 37 if (err) { 38 /* Return if TB_FW_CONFIG is not loaded */ 39 VERBOSE("Failed to load TB_FW_CONFIG\n"); 40 return; 41 } 42 43 config_base = arm_tb_fw_info.image_info.image_base; 44 45 /* The BL2 ep_info arg0 is modified to point to TB_FW_CONFIG */ 46 image_desc = bl1_plat_get_image_desc(BL2_IMAGE_ID); 47 assert(image_desc); 48 image_desc->ep_info.args.arg0 = config_base; 49 50 INFO("BL1: TB_FW_CONFIG loaded at address = %p\n", 51 (void *) config_base); 52 } 53 54 #endif /* LOAD_IMAGE_V2 */ 55