1 /* 2 * Copyright (c) 2019-2025, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <common/debug.h> 10 #include <common/fdt_wrappers.h> 11 #include <lib/fconf/fconf.h> 12 #include <lib/fconf/fconf_dyn_cfg_getter.h> 13 #include <libfdt.h> 14 #include <plat/common/platform.h> 15 #include <platform_def.h> 16 17 int fconf_load_config(unsigned int image_id) 18 { 19 int err; 20 const struct dyn_cfg_dtb_info_t *config_info; 21 image_info_t config_image_info; 22 23 assert((image_id == FW_CONFIG_ID) || (image_id == TB_FW_CONFIG_ID)); 24 25 SET_PARAM_HEAD(&config_image_info, PARAM_IMAGE_BINARY, VERSION_2, 0); 26 27 config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, image_id); 28 assert(config_info != NULL); 29 30 config_image_info.image_base = config_info->config_addr; 31 config_image_info.image_max_size = config_info->config_max_size; 32 33 VERBOSE("FCONF: Loading config with image ID: %u\n", image_id); 34 err = load_auth_image(image_id, &config_image_info); 35 if (err != 0) { 36 VERBOSE("Failed to load config %u\n", image_id); 37 return err; 38 } 39 40 INFO("FCONF: Config file with image ID:%u loaded at address = 0x%lx\n", 41 image_id, config_image_info.image_base); 42 43 return 0; 44 } 45 46 void fconf_populate(const char *config_type, uintptr_t config) 47 { 48 assert(config != 0UL); 49 50 /* Check if the pointer to DTB is correct */ 51 if (fdt_check_header((void *)config) != 0) { 52 ERROR("FCONF: Invalid DTB file passed for %s\n", config_type); 53 panic(); 54 } 55 56 INFO("FCONF: Reading %s firmware configuration file from: 0x%lx\n", config_type, config); 57 58 /* Go through all registered populate functions */ 59 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_START__, start); 60 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_END__, end); 61 const struct fconf_populator *populator; 62 63 for (populator = start; populator != end; populator++) { 64 assert((populator->info != NULL) && (populator->populate != NULL)); 65 66 if (strcmp(populator->config_type, config_type) == 0) { 67 INFO("FCONF: Reading firmware configuration information for: %s\n", populator->info); 68 if (populator->populate(config) != 0) { 69 /* TODO: handle property miss */ 70 panic(); 71 } 72 } 73 } 74 } 75