1 /* 2 * Copyright (c) 2019-2020, 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 22 assert((image_id == FW_CONFIG_ID) || (image_id == TB_FW_CONFIG_ID)); 23 24 image_info_t config_image_info = { 25 .h.type = (uint8_t)PARAM_IMAGE_BINARY, 26 .h.version = (uint8_t)VERSION_2, 27 .h.size = (uint16_t)sizeof(image_info_t), 28 .h.attr = 0 29 }; 30 31 config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, image_id); 32 assert(config_info != NULL); 33 34 config_image_info.image_base = config_info->config_addr; 35 config_image_info.image_max_size = 36 (uint32_t)config_info->config_max_size; 37 38 VERBOSE("FCONF: Loading config with image ID: %d\n", image_id); 39 err = load_auth_image(image_id, &config_image_info); 40 if (err != 0) { 41 VERBOSE("Failed to load config %d\n", image_id); 42 return err; 43 } 44 45 INFO("FCONF: Config file with image ID:%d loaded at address = 0x%lx\n", 46 image_id, config_image_info.image_base); 47 48 return 0; 49 } 50 51 void fconf_populate(const char *config_type, uintptr_t config) 52 { 53 assert(config != 0UL); 54 55 /* Check if the pointer to DTB is correct */ 56 if (fdt_check_header((void *)config) != 0) { 57 ERROR("FCONF: Invalid DTB file passed for %s\n", config_type); 58 panic(); 59 } 60 61 INFO("FCONF: Reading %s firmware configuration file from: 0x%lx\n", config_type, config); 62 63 /* Go through all registered populate functions */ 64 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_START__, start); 65 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_END__, end); 66 const struct fconf_populator *populator; 67 68 for (populator = start; populator != end; populator++) { 69 assert((populator->info != NULL) && (populator->populate != NULL)); 70 71 if (strcmp(populator->config_type, config_type) == 0) { 72 INFO("FCONF: Reading firmware configuration information for: %s\n", populator->info); 73 if (populator->populate(config) != 0) { 74 /* TODO: handle property miss */ 75 panic(); 76 } 77 } 78 } 79 } 80