1ab1981dbSLouis Mayencourt /* 2ab1981dbSLouis Mayencourt * Copyright (c) 2019-2020, ARM Limited. All rights reserved. 3ab1981dbSLouis Mayencourt * 4ab1981dbSLouis Mayencourt * SPDX-License-Identifier: BSD-3-Clause 5ab1981dbSLouis Mayencourt */ 6ab1981dbSLouis Mayencourt 7ab1981dbSLouis Mayencourt #include <assert.h> 8ab1981dbSLouis Mayencourt 9ab1981dbSLouis Mayencourt #include <common/debug.h> 109814bfc1SLouis Mayencourt #include <common/fdt_wrappers.h> 11ab1981dbSLouis Mayencourt #include <lib/fconf/fconf.h> 12ab1981dbSLouis Mayencourt #include <libfdt.h> 133b5ea741SLouis Mayencourt #include <plat/common/platform.h> 14ab1981dbSLouis Mayencourt #include <platform_def.h> 15ab1981dbSLouis Mayencourt 169814bfc1SLouis Mayencourt struct fconf_dtb_info_t fconf_dtb_info; 173b5ea741SLouis Mayencourt 183b5ea741SLouis Mayencourt void fconf_load_config(void) 193b5ea741SLouis Mayencourt { 203b5ea741SLouis Mayencourt int err; 21*25ac8794SLouis Mayencourt /* fconf FW_CONFIG and TB_FW_CONFIG are currently the same DTB */ 223b5ea741SLouis Mayencourt image_info_t arm_tb_fw_info = { 233b5ea741SLouis Mayencourt .h.type = (uint8_t)PARAM_IMAGE_BINARY, 243b5ea741SLouis Mayencourt .h.version = (uint8_t)VERSION_2, 253b5ea741SLouis Mayencourt .h.size = (uint16_t)sizeof(image_info_t), 263b5ea741SLouis Mayencourt .h.attr = 0, 273b5ea741SLouis Mayencourt .image_base = ARM_TB_FW_CONFIG_BASE, 283b5ea741SLouis Mayencourt .image_max_size = (uint32_t) 293b5ea741SLouis Mayencourt (ARM_TB_FW_CONFIG_LIMIT - ARM_TB_FW_CONFIG_BASE) 303b5ea741SLouis Mayencourt }; 313b5ea741SLouis Mayencourt 323b5ea741SLouis Mayencourt VERBOSE("FCONF: Loading FW_CONFIG\n"); 333b5ea741SLouis Mayencourt err = load_auth_image(TB_FW_CONFIG_ID, &arm_tb_fw_info); 343b5ea741SLouis Mayencourt if (err != 0) { 353b5ea741SLouis Mayencourt /* Return if FW_CONFIG is not loaded */ 363b5ea741SLouis Mayencourt VERBOSE("Failed to load FW_CONFIG\n"); 373b5ea741SLouis Mayencourt return; 383b5ea741SLouis Mayencourt } 393b5ea741SLouis Mayencourt 403b5ea741SLouis Mayencourt /* At this point we know that a DTB is indeed available */ 419814bfc1SLouis Mayencourt fconf_dtb_info.base_addr = arm_tb_fw_info.image_base; 429814bfc1SLouis Mayencourt fconf_dtb_info.size = (size_t)arm_tb_fw_info.image_size; 439814bfc1SLouis Mayencourt 449814bfc1SLouis Mayencourt #if !BL2_AT_EL3 459814bfc1SLouis Mayencourt image_desc_t *desc; 463b5ea741SLouis Mayencourt 473b5ea741SLouis Mayencourt /* The BL2 ep_info arg0 is modified to point to FW_CONFIG */ 483b5ea741SLouis Mayencourt desc = bl1_plat_get_image_desc(BL2_IMAGE_ID); 493b5ea741SLouis Mayencourt assert(desc != NULL); 509814bfc1SLouis Mayencourt desc->ep_info.args.arg0 = arm_tb_fw_info.image_base; 519814bfc1SLouis Mayencourt #endif 523b5ea741SLouis Mayencourt 539814bfc1SLouis Mayencourt INFO("FCONF: FW_CONFIG loaded at address = 0x%lx\n", arm_tb_fw_info.image_base); 543b5ea741SLouis Mayencourt } 553b5ea741SLouis Mayencourt 56ab1981dbSLouis Mayencourt void fconf_populate(uintptr_t config) 57ab1981dbSLouis Mayencourt { 58ab1981dbSLouis Mayencourt assert(config != 0UL); 59ab1981dbSLouis Mayencourt 60ab1981dbSLouis Mayencourt /* Check if the pointer to DTB is correct */ 61ab1981dbSLouis Mayencourt if (fdt_check_header((void *)config) != 0) { 62ab1981dbSLouis Mayencourt ERROR("FCONF: Invalid DTB file passed for FW_CONFIG\n"); 63ab1981dbSLouis Mayencourt panic(); 64ab1981dbSLouis Mayencourt } 65ab1981dbSLouis Mayencourt 66ab1981dbSLouis Mayencourt INFO("FCONF: Reading firmware configuration file from: 0x%lx\n", config); 67ab1981dbSLouis Mayencourt 68ab1981dbSLouis Mayencourt /* Go through all registered populate functions */ 69ab1981dbSLouis Mayencourt IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_START__, start); 70ab1981dbSLouis Mayencourt IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_END__, end); 71ab1981dbSLouis Mayencourt const struct fconf_populator *populator; 72ab1981dbSLouis Mayencourt 73ab1981dbSLouis Mayencourt for (populator = start; populator != end; populator++) { 74ab1981dbSLouis Mayencourt assert((populator->info != NULL) && (populator->populate != NULL)); 75ab1981dbSLouis Mayencourt 76ab1981dbSLouis Mayencourt INFO("FCONF: Reading firmware configuration information for: %s\n", populator->info); 77ab1981dbSLouis Mayencourt if (populator->populate(config) != 0) { 78ab1981dbSLouis Mayencourt /* TODO: handle property miss */ 79ab1981dbSLouis Mayencourt panic(); 80ab1981dbSLouis Mayencourt } 81ab1981dbSLouis Mayencourt } 829814bfc1SLouis Mayencourt 839814bfc1SLouis Mayencourt /* save local pointer to the config dtb */ 849814bfc1SLouis Mayencourt fconf_dtb_info.base_addr = config; 85ab1981dbSLouis Mayencourt } 86