blob: 017af79a5c5a2e93984f20c682bf38f908f22984 [file] [log] [blame]
Louis Mayencourtbadcac82019-10-24 15:18:46 +01001/*
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 <drivers/io/io_storage.h>
12#include <lib/object_pool.h>
13#include <libfdt.h>
14#include <tools_share/firmware_image_package.h>
15
16#include <plat/arm/common/arm_fconf_getter.h>
17#include <plat/arm/common/arm_fconf_io_storage.h>
18#include <platform_def.h>
19
20const io_block_spec_t fip_block_spec = {
21 .offset = PLAT_ARM_FIP_BASE,
22 .length = PLAT_ARM_FIP_MAX_SIZE
23};
24
25const io_uuid_spec_t arm_uuid_spec[MAX_NUMBER_IDS] = {
26 [BL2_IMAGE_ID] = {UUID_TRUSTED_BOOT_FIRMWARE_BL2},
27 [TB_FW_CONFIG_ID] = {UUID_TB_FW_CONFIG},
28#if TRUSTED_BOARD_BOOT
29 [TRUSTED_BOOT_FW_CERT_ID] = {UUID_TRUSTED_BOOT_FW_CERT},
30#endif /* TRUSTED_BOARD_BOOT */
31};
32
33/* By default, ARM platforms load images from the FIP */
34struct plat_io_policy policies[MAX_NUMBER_IDS] = {
35 [FIP_IMAGE_ID] = {
36 &memmap_dev_handle,
37 (uintptr_t)&fip_block_spec,
38 open_memmap
39 },
40 [BL2_IMAGE_ID] = {
41 &fip_dev_handle,
42 (uintptr_t)&arm_uuid_spec[BL2_IMAGE_ID],
43 open_fip
44 },
45 [TB_FW_CONFIG_ID] = {
46 &fip_dev_handle,
47 (uintptr_t)&arm_uuid_spec[TB_FW_CONFIG_ID],
48 open_fip
49 },
50#if TRUSTED_BOARD_BOOT
51 [TRUSTED_BOOT_FW_CERT_ID] = {
52 &fip_dev_handle,
53 (uintptr_t)&arm_uuid_spec[TRUSTED_BOOT_FW_CERT_ID],
54 open_fip
55 },
56#endif /* TRUSTED_BOARD_BOOT */
57};
58
59#ifdef IMAGE_BL2
60
61#if TRUSTED_BOARD_BOOT
Louis Mayencourt2711cc82020-02-24 14:37:25 +000062#define FCONF_ARM_IO_UUID_NUMBER U(19)
Louis Mayencourtbadcac82019-10-24 15:18:46 +010063#else
Louis Mayencourt2711cc82020-02-24 14:37:25 +000064#define FCONF_ARM_IO_UUID_NUMBER U(10)
Louis Mayencourtbadcac82019-10-24 15:18:46 +010065#endif
66
67static io_uuid_spec_t fconf_arm_uuids[FCONF_ARM_IO_UUID_NUMBER];
68static OBJECT_POOL_ARRAY(fconf_arm_uuids_pool, fconf_arm_uuids);
69
70struct policies_load_info {
71 unsigned int image_id;
72 const char *name;
73};
74
75/* image id to property name table */
76static const struct policies_load_info load_info[FCONF_ARM_IO_UUID_NUMBER] = {
77 {SCP_BL2_IMAGE_ID, "scp_bl2_uuid"},
78 {BL31_IMAGE_ID, "bl31_uuid"},
79 {BL32_IMAGE_ID, "bl32_uuid"},
80 {BL32_EXTRA1_IMAGE_ID, "bl32_extra1_uuid"},
81 {BL32_EXTRA2_IMAGE_ID, "bl32_extra2_uuid"},
82 {BL33_IMAGE_ID, "bl33_uuid"},
83 {HW_CONFIG_ID, "hw_cfg_uuid"},
84 {SOC_FW_CONFIG_ID, "soc_fw_cfg_uuid"},
85 {TOS_FW_CONFIG_ID, "tos_fw_cfg_uuid"},
86 {NT_FW_CONFIG_ID, "nt_fw_cfg_uuid"},
87#if TRUSTED_BOARD_BOOT
88 {TRUSTED_KEY_CERT_ID, "t_key_cert_uuid"},
89 {SCP_FW_KEY_CERT_ID, "scp_fw_key_uuid"},
90 {SOC_FW_KEY_CERT_ID, "soc_fw_key_uuid"},
91 {TRUSTED_OS_FW_KEY_CERT_ID, "tos_fw_key_cert_uuid"},
92 {NON_TRUSTED_FW_KEY_CERT_ID, "nt_fw_key_cert_uuid"},
93 {SCP_FW_CONTENT_CERT_ID, "scp_fw_content_cert_uuid"},
94 {SOC_FW_CONTENT_CERT_ID, "soc_fw_content_cert_uuid"},
95 {TRUSTED_OS_FW_CONTENT_CERT_ID, "tos_fw_content_cert_uuid"},
96 {NON_TRUSTED_FW_CONTENT_CERT_ID, "nt_fw_content_cert_uuid"},
97#endif /* TRUSTED_BOARD_BOOT */
98};
99
100int fconf_populate_arm_io_policies(uintptr_t config)
101{
102 int err, node;
103 unsigned int i;
104
105 union uuid_helper_t uuid_helper;
106 io_uuid_spec_t *uuid_ptr;
107
108 /* As libfdt uses void *, we can't avoid this cast */
109 const void *dtb = (void *)config;
110
111 /* Assert the node offset point to "arm,io-fip-handle" compatible property */
112 const char *compatible_str = "arm,io-fip-handle";
113 node = fdt_node_offset_by_compatible(dtb, -1, compatible_str);
114 if (node < 0) {
115 ERROR("FCONF: Can't find %s compatible in dtb\n", compatible_str);
116 return node;
117 }
118
119 /* Locate the uuid cells and read the value for all the load info uuid */
120 for (i = 0; i < FCONF_ARM_IO_UUID_NUMBER; i++) {
121 uuid_ptr = pool_alloc(&fconf_arm_uuids_pool);
122 err = fdtw_read_array(dtb, node, load_info[i].name, 4, &uuid_helper.word);
123 if (err < 0) {
124 WARN("FCONF: Read cell failed for %s\n", load_info[i].name);
125 return err;
126 }
127
128 VERBOSE("FCONF: arm-io_policies.%s cell found with value = 0x%x 0x%x 0x%x 0x%x\n",
129 load_info[i].name,
130 uuid_helper.word[0], uuid_helper.word[1],
131 uuid_helper.word[2], uuid_helper.word[3]);
132
133 uuid_ptr->uuid = uuid_helper.uuid_struct;
134 policies[load_info[i].image_id].image_spec = (uintptr_t)uuid_ptr;
135 policies[load_info[i].image_id].dev_handle = &fip_dev_handle;
136 policies[load_info[i].image_id].check = open_fip;
137 }
138 return 0;
139}
140
Madhukar Pappireddy81519692019-12-06 15:46:42 -0600141FCONF_REGISTER_POPULATOR(TB_FW, arm_io, fconf_populate_arm_io_policies);
Louis Mayencourtbadcac82019-10-24 15:18:46 +0100142
143#endif /* IMAGE_BL2 */