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 void fconf_load_config(unsigned int image_id) 18 { 19 int err; 20 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 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 image_info.image_base = config_info->config_addr; 33 image_info.image_max_size = config_info->config_max_size; 34 35 VERBOSE("FCONF: Loading config with image ID: %d\n", image_id); 36 err = load_auth_image(image_id, &image_info); 37 if (err != 0) { 38 VERBOSE("Failed to load config %d, continuing without it\n", 39 image_id); 40 return; 41 } 42 43 INFO("FCONF: Config file with image ID:%d loaded at address = 0x%lx\n", 44 image_id, image_info.image_base); 45 46 } 47 48 void fconf_populate(const char *config_type, uintptr_t config) 49 { 50 assert(config != 0UL); 51 52 /* Check if the pointer to DTB is correct */ 53 if (fdt_check_header((void *)config) != 0) { 54 ERROR("FCONF: Invalid DTB file passed for %s\n", config_type); 55 panic(); 56 } 57 58 INFO("FCONF: Reading %s firmware configuration file from: 0x%lx\n", config_type, config); 59 60 /* Go through all registered populate functions */ 61 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_START__, start); 62 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_END__, end); 63 const struct fconf_populator *populator; 64 65 for (populator = start; populator != end; populator++) { 66 assert((populator->info != NULL) && (populator->populate != NULL)); 67 68 if (strcmp(populator->config_type, config_type) == 0) { 69 INFO("FCONF: Reading firmware configuration information for: %s\n", populator->info); 70 if (populator->populate(config) != 0) { 71 /* TODO: handle property miss */ 72 panic(); 73 } 74 } 75 } 76 } 77