1 /* 2 * Copyright (c) 2022, Socionext Inc. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 #include <errno.h> 9 #include <stdint.h> 10 11 #include <drivers/io/io_block.h> 12 #include <drivers/io/io_driver.h> 13 #include <drivers/io/io_fip.h> 14 #include <drivers/io/io_memmap.h> 15 #include <lib/mmio.h> 16 #include <lib/utils_def.h> 17 #include <lib/xlat_tables/xlat_tables_v2.h> 18 #include <tools_share/firmware_image_package.h> 19 20 #include <platform_def.h> 21 #include <sq_common.h> 22 23 static const io_dev_connector_t *sq_fip_dev_con; 24 static uintptr_t sq_fip_dev_handle; 25 26 static const io_dev_connector_t *sq_backend_dev_con; 27 static uintptr_t sq_backend_dev_handle; 28 29 static io_block_spec_t sq_fip_spec = { 30 .offset = PLAT_SQ_FIP_IOBASE, /* FIP Image is at 5MB offset on memory-mapped NOR flash */ 31 .length = PLAT_SQ_FIP_MAXSIZE, /* Expected maximum FIP image size */ 32 }; 33 34 static const io_uuid_spec_t sq_bl2_spec = { 35 .uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2, 36 }; 37 38 static const io_uuid_spec_t sq_bl31_spec = { 39 .uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31, 40 }; 41 42 static const io_uuid_spec_t sq_bl32_spec = { 43 .uuid = UUID_SECURE_PAYLOAD_BL32, 44 }; 45 46 static const io_uuid_spec_t sq_bl33_spec = { 47 .uuid = UUID_NON_TRUSTED_FIRMWARE_BL33, 48 }; 49 50 #if TRUSTED_BOARD_BOOT 51 static const io_uuid_spec_t sq_tb_fw_cert_spec = { 52 .uuid = UUID_TRUSTED_BOOT_FW_CERT, 53 }; 54 55 static const io_uuid_spec_t sq_trusted_key_cert_spec = { 56 .uuid = UUID_TRUSTED_KEY_CERT, 57 }; 58 59 static const io_uuid_spec_t sq_soc_fw_key_cert_spec = { 60 .uuid = UUID_SOC_FW_KEY_CERT, 61 }; 62 63 static const io_uuid_spec_t sq_tos_fw_key_cert_spec = { 64 .uuid = UUID_TRUSTED_OS_FW_KEY_CERT, 65 }; 66 67 static const io_uuid_spec_t sq_nt_fw_key_cert_spec = { 68 .uuid = UUID_NON_TRUSTED_FW_KEY_CERT, 69 }; 70 71 static const io_uuid_spec_t sq_soc_fw_cert_spec = { 72 .uuid = UUID_SOC_FW_CONTENT_CERT, 73 }; 74 75 static const io_uuid_spec_t sq_tos_fw_cert_spec = { 76 .uuid = UUID_TRUSTED_OS_FW_CONTENT_CERT, 77 }; 78 79 static const io_uuid_spec_t sq_nt_fw_cert_spec = { 80 .uuid = UUID_NON_TRUSTED_FW_CONTENT_CERT, 81 }; 82 #endif /* TRUSTED_BOARD_BOOT */ 83 84 struct sq_io_policy { 85 uintptr_t *dev_handle; 86 uintptr_t image_spec; 87 uintptr_t init_params; 88 }; 89 90 static const struct sq_io_policy sq_io_policies[] = { 91 [FIP_IMAGE_ID] = { 92 .dev_handle = &sq_backend_dev_handle, 93 .image_spec = (uintptr_t)&sq_fip_spec, 94 }, 95 [BL2_IMAGE_ID] = { 96 .dev_handle = &sq_fip_dev_handle, 97 .image_spec = (uintptr_t)&sq_bl2_spec, 98 .init_params = FIP_IMAGE_ID, 99 }, 100 [BL31_IMAGE_ID] = { 101 .dev_handle = &sq_fip_dev_handle, 102 .image_spec = (uintptr_t)&sq_bl31_spec, 103 .init_params = FIP_IMAGE_ID, 104 }, 105 [BL32_IMAGE_ID] = { 106 .dev_handle = &sq_fip_dev_handle, 107 .image_spec = (uintptr_t)&sq_bl32_spec, 108 .init_params = FIP_IMAGE_ID, 109 }, 110 [BL33_IMAGE_ID] = { 111 .dev_handle = &sq_fip_dev_handle, 112 .image_spec = (uintptr_t)&sq_bl33_spec, 113 .init_params = FIP_IMAGE_ID, 114 }, 115 #if TRUSTED_BOARD_BOOT 116 [TRUSTED_BOOT_FW_CERT_ID] = { 117 .dev_handle = &sq_fip_dev_handle, 118 .image_spec = (uintptr_t)&sq_tb_fw_cert_spec, 119 .init_params = FIP_IMAGE_ID, 120 }, 121 [TRUSTED_KEY_CERT_ID] = { 122 .dev_handle = &sq_fip_dev_handle, 123 .image_spec = (uintptr_t)&sq_trusted_key_cert_spec, 124 .init_params = FIP_IMAGE_ID, 125 }, 126 [SOC_FW_KEY_CERT_ID] = { 127 .dev_handle = &sq_fip_dev_handle, 128 .image_spec = (uintptr_t)&sq_soc_fw_key_cert_spec, 129 .init_params = FIP_IMAGE_ID, 130 }, 131 [TRUSTED_OS_FW_KEY_CERT_ID] = { 132 .dev_handle = &sq_fip_dev_handle, 133 .image_spec = (uintptr_t)&sq_tos_fw_key_cert_spec, 134 .init_params = FIP_IMAGE_ID, 135 }, 136 [NON_TRUSTED_FW_KEY_CERT_ID] = { 137 .dev_handle = &sq_fip_dev_handle, 138 .image_spec = (uintptr_t)&sq_nt_fw_key_cert_spec, 139 .init_params = FIP_IMAGE_ID, 140 }, 141 [SOC_FW_CONTENT_CERT_ID] = { 142 .dev_handle = &sq_fip_dev_handle, 143 .image_spec = (uintptr_t)&sq_soc_fw_cert_spec, 144 .init_params = FIP_IMAGE_ID, 145 }, 146 [TRUSTED_OS_FW_CONTENT_CERT_ID] = { 147 .dev_handle = &sq_fip_dev_handle, 148 .image_spec = (uintptr_t)&sq_tos_fw_cert_spec, 149 .init_params = FIP_IMAGE_ID, 150 }, 151 [NON_TRUSTED_FW_CONTENT_CERT_ID] = { 152 .dev_handle = &sq_fip_dev_handle, 153 .image_spec = (uintptr_t)&sq_nt_fw_cert_spec, 154 .init_params = FIP_IMAGE_ID, 155 }, 156 #endif 157 }; 158 159 static int sq_update_fip_spec(void) 160 { 161 uint32_t boot_index; 162 int ret; 163 164 ret = mmap_add_dynamic_region(PLAT_SQ_BOOTIDX_BASE, PLAT_SQ_BOOTIDX_BASE, 165 PAGE_SIZE, MT_RO_DATA | MT_SECURE); 166 if (ret) { 167 return ret; 168 } 169 170 boot_index = mmio_read_32(PLAT_SQ_BOOTIDX_BASE); 171 if (boot_index < PLAT_SQ_MAX_BOOT_INDEX) { 172 sq_fip_spec.offset += PLAT_SQ_FIP_MAXSIZE * boot_index; 173 INFO("FWU Enabled: boot_index %d\n", boot_index); 174 } else { 175 WARN("FWU Disabled: wrong boot_index value. Fallback to index 0.\n"); 176 } 177 178 mmap_remove_dynamic_region(PLAT_SQ_BOOTIDX_BASE, PAGE_SIZE); 179 return 0; 180 } 181 182 static int sq_io_memmap_setup(void) 183 { 184 int ret; 185 186 ret = sq_update_fip_spec(); 187 if (ret) { 188 return ret; 189 } 190 191 ret = mmap_add_dynamic_region(sq_fip_spec.offset, sq_fip_spec.offset, 192 sq_fip_spec.length, MT_RO_DATA | MT_SECURE); 193 if (ret) { 194 return ret; 195 } 196 197 ret = register_io_dev_memmap(&sq_backend_dev_con); 198 if (ret) { 199 return ret; 200 } 201 202 return io_dev_open(sq_backend_dev_con, 0, &sq_backend_dev_handle); 203 } 204 205 static int sq_io_fip_setup(void) 206 { 207 int ret; 208 209 ret = register_io_dev_fip(&sq_fip_dev_con); 210 if (ret) { 211 return ret; 212 } 213 214 return io_dev_open(sq_fip_dev_con, 0, &sq_fip_dev_handle); 215 } 216 217 int sq_io_setup(void) 218 { 219 int ret; 220 221 ret = sq_io_memmap_setup(); 222 if (ret) { 223 return ret; 224 } 225 226 ret = sq_io_fip_setup(); 227 if (ret) { 228 return ret; 229 } 230 231 return 0; 232 } 233 234 int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, 235 uintptr_t *image_spec) 236 { 237 uintptr_t init_params; 238 239 assert(image_id < ARRAY_SIZE(sq_io_policies)); 240 241 *dev_handle = *sq_io_policies[image_id].dev_handle; 242 *image_spec = sq_io_policies[image_id].image_spec; 243 init_params = sq_io_policies[image_id].init_params; 244 245 return io_dev_init(*dev_handle, init_params); 246 } 247