1 /*
2 * Copyright (c) 2019-2022, 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
fconf_load_config(unsigned int image_id)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 = config_info->config_max_size;
36
37 VERBOSE("FCONF: Loading config with image ID: %u\n", image_id);
38 err = load_auth_image(image_id, &config_image_info);
39 if (err != 0) {
40 VERBOSE("Failed to load config %u\n", image_id);
41 return err;
42 }
43
44 INFO("FCONF: Config file with image ID:%u loaded at address = 0x%lx\n",
45 image_id, config_image_info.image_base);
46
47 return 0;
48 }
49
fconf_populate(const char * config_type,uintptr_t config)50 void fconf_populate(const char *config_type, uintptr_t config)
51 {
52 assert(config != 0UL);
53
54 /* Check if the pointer to DTB is correct */
55 if (fdt_check_header((void *)config) != 0) {
56 ERROR("FCONF: Invalid DTB file passed for %s\n", config_type);
57 panic();
58 }
59
60 INFO("FCONF: Reading %s firmware configuration file from: 0x%lx\n", config_type, config);
61
62 /* Go through all registered populate functions */
63 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_START__, start);
64 IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_END__, end);
65 const struct fconf_populator *populator;
66
67 for (populator = start; populator != end; populator++) {
68 assert((populator->info != NULL) && (populator->populate != NULL));
69
70 if (strcmp(populator->config_type, config_type) == 0) {
71 INFO("FCONF: Reading firmware configuration information for: %s\n", populator->info);
72 if (populator->populate(config) != 0) {
73 /* TODO: handle property miss */
74 panic();
75 }
76 }
77 }
78 }
79