1 /* 2 * (C) Copyright 2019 Rockchip Electronics Co., Ltd 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 #include <common.h> 7 #include <boot_rkimg.h> 8 #include <image.h> 9 #include <malloc.h> 10 #include <sysmem.h> 11 #include <asm/arch/fit.h> 12 #include <asm/arch/resource_img.h> 13 14 DECLARE_GLOBAL_DATA_PTR; 15 16 #define FIT_PLACEHOLDER_ADDR 0xffffff00 17 18 /* 19 * Must use args '-E -p' for mkimage to generate FIT image, 4K as max assumption. 20 */ 21 #define FIT_FDT_MAX_SIZE SZ_4K 22 23 static int fit_is_ext_type(const void *fit) 24 { 25 return fdt_totalsize(fit) < FIT_FDT_MAX_SIZE; 26 } 27 28 static int fit_is_signed(const void *fit, const void *sig_blob) 29 { 30 return fdt_subnode_offset(sig_blob, 0, FIT_SIG_NODENAME) < 0 ? 0 : 1; 31 } 32 33 static inline int fit_image_addr_is_placeholder(ulong addr) 34 { 35 return (addr & 0xffffff00) == FIT_PLACEHOLDER_ADDR; 36 } 37 38 static int fit_sig_require_conf(const void *fit, const void *sig_blob) 39 { 40 const char *required; 41 int sig_node; 42 int noffset; 43 44 sig_node = fdt_subnode_offset(sig_blob, 0, FIT_SIG_NODENAME); 45 if (sig_node < 0) 46 return 0; 47 48 fdt_for_each_subnode(noffset, sig_blob, sig_node) { 49 required = fdt_getprop(sig_blob, noffset, "required", NULL); 50 if (required && !strcmp(required, "conf")) 51 return 1; 52 } 53 54 return 0; 55 } 56 57 int fit_default_conf_get_node(const void *fit, const char *prop_name) 58 { 59 int conf_noffset; 60 61 conf_noffset = fit_conf_get_node(fit, NULL); /* NULL for default conf */ 62 if (conf_noffset < 0) 63 return conf_noffset; 64 65 return fit_conf_get_prop_node(fit, conf_noffset, prop_name); 66 } 67 68 int fix_image_set_addr(const void *fit, const char *prop_name, 69 ulong old, ulong new) 70 { 71 int noffset; 72 73 /* do not fix if verified-boot */ 74 if (!fit_image_addr_is_placeholder(old) || 75 fit_sig_require_conf(fit, gd_fdt_blob())) 76 return 0; 77 78 noffset = fit_default_conf_get_node(fit, prop_name); 79 if (noffset < 0) 80 return noffset; 81 82 /* optional */ 83 fit_image_set_entry(fit, noffset, new); 84 85 return fit_image_set_load(fit, noffset, new); 86 } 87 88 static int fdt_image_get_offset_size(const void *fit, const char *prop_name, 89 int *offset, int *size) 90 { 91 int sz, offs; 92 int noffset; 93 int ret; 94 95 noffset = fit_default_conf_get_node(fit, prop_name); 96 if (noffset < 0) 97 return noffset; 98 99 ret = fit_image_get_data_size(fit, noffset, &sz); 100 if (ret) 101 return ret; 102 103 ret = fit_image_get_data_position(fit, noffset, &offs); 104 if (!ret) 105 offs -= fdt_totalsize(fit); 106 else 107 ret = fit_image_get_data_offset(fit, noffset, &offs); 108 109 *offset = offs; 110 *size = sz; 111 112 return ret; 113 } 114 115 static int fdt_image_get_load(const void *fit, const char *prop_name, 116 ulong *load) 117 { 118 int noffset; 119 120 noffset = fit_default_conf_get_node(fit, prop_name); 121 if (noffset < 0) 122 return noffset; 123 124 return fit_image_get_load(fit, noffset, load); 125 } 126 127 static int fit_image_get_param(const void *fit, const char *prop_name, 128 ulong *load, int *offset, int *size) 129 { 130 int ret; 131 132 ret = fdt_image_get_offset_size(fit, prop_name, offset, size); 133 if (ret < 0) 134 return ret; 135 136 return fdt_image_get_load(fit, prop_name, load); 137 } 138 139 static void *fit_get_blob(struct blk_desc *dev_desc, 140 disk_partition_t *out_part, 141 bool verify) 142 { 143 __maybe_unused int conf_noffset; 144 disk_partition_t part; 145 char *part_name = PART_BOOT; 146 void *fit, *fdt; 147 int blk_num; 148 149 #ifndef CONFIG_ANDROID_AB 150 if (rockchip_get_boot_mode() == BOOT_MODE_RECOVERY) 151 part_name = PART_RECOVERY; 152 #endif 153 154 if (part_get_info_by_name(dev_desc, part_name, &part) < 0) { 155 FIT_I("No %s partition\n", part_name); 156 return NULL; 157 } 158 159 *out_part = part; 160 blk_num = DIV_ROUND_UP(sizeof(struct fdt_header), dev_desc->blksz); 161 fdt = memalign(ARCH_DMA_MINALIGN, blk_num * dev_desc->blksz); 162 if (!fdt) 163 return NULL; 164 165 if (blk_dread(dev_desc, part.start, blk_num, fdt) != blk_num) { 166 debug("Failed to read fdt header\n"); 167 goto fail; 168 } 169 170 if (fdt_check_header(fdt)) { 171 debug("No fdt header\n"); 172 goto fail; 173 } 174 175 if (!fit_is_ext_type(fdt)) { 176 debug("Not external type\n"); 177 goto fail; 178 } 179 180 blk_num = DIV_ROUND_UP(fdt_totalsize(fdt), dev_desc->blksz); 181 fit = memalign(ARCH_DMA_MINALIGN, blk_num * dev_desc->blksz); 182 if (!fit) { 183 debug("No memory\n"); 184 goto fail; 185 } 186 187 if (blk_dread(dev_desc, part.start, blk_num, fit) != blk_num) { 188 free(fit); 189 debug("Failed to read fit blob\n"); 190 goto fail; 191 } 192 193 #ifdef CONFIG_FIT_SIGNATURE 194 if (!verify) 195 return fit; 196 197 conf_noffset = fit_conf_get_node(fit, NULL); /* NULL for default conf */ 198 if (conf_noffset < 0) 199 goto fail; 200 201 printf("%s: ", fdt_get_name(fit, conf_noffset, NULL)); 202 if (fit_config_verify(fit, conf_noffset)) { 203 puts("\n"); 204 /* don't remove this failure handle */ 205 run_command("download", 0); 206 hang(); 207 } 208 puts("\n"); 209 #endif 210 return fit; 211 212 fail: 213 free(fdt); 214 return NULL; 215 } 216 217 static int fit_image_fixup_alloc(const void *fit, const char *prop_name, 218 const char *addr_name, enum memblk_id mem) 219 { 220 ulong load, addr; 221 int offset, size = 0; 222 int ret; 223 224 addr = env_get_ulong(addr_name, 16, 0); 225 if (!addr) 226 return -EINVAL; 227 228 ret = fit_image_get_param(fit, prop_name, &load, &offset, &size); 229 if (ret) 230 return (ret == -FDT_ERR_NOTFOUND) ? 0 : ret; 231 232 if (!size) 233 return 0; 234 235 ret = fix_image_set_addr(fit, prop_name, load, addr); 236 if (ret) 237 return ret; 238 239 /* 240 * 1. When need load HWID dtb, gd->fdt_blob points to HWID dtb 241 * and U-Boot will re-alloc MEM_FDT based on fdt node in 242 * ITB instead of resource. So alloc the larger size to 243 * avoid fail in sysmem. It will already skip load DTB in fdt node. 244 * 245 * 2. Additionally increase size with CONFIG_SYS_FDT_PAD to reserve 246 * some space for adding more props to dtb afterwards. 247 */ 248 if (!strcmp(prop_name, FIT_FDT_PROP) && !fdt_check_header(gd->fdt_blob)) 249 size = ((size > fdt_totalsize(gd->fdt_blob)) ? 250 size : fdt_totalsize(gd->fdt_blob)) + 251 CONFIG_SYS_FDT_PAD; 252 253 if (!sysmem_alloc_base(mem, (phys_addr_t)addr, 254 ALIGN(size, RK_BLK_SIZE))) 255 return -ENOMEM; 256 257 return 0; 258 } 259 260 int fit_image_pre_process(const void *fit) 261 { 262 int ret; 263 264 /* free for fit_image_fixup_alloc(FIT_FDT_PROP) to re-alloc */ 265 if ((gd->flags & GD_FLG_KDTB_READY) && !gd->fdt_blob_kern) 266 sysmem_free((phys_addr_t)gd->fdt_blob); 267 268 ret = fit_image_fixup_alloc(fit, FIT_FDT_PROP, 269 "fdt_addr_r", MEM_FDT); 270 if (ret < 0) { 271 return ret; 272 } 273 274 #if !defined(CONFIG_ARM64) && defined(CONFIG_CMD_BOOTZ) 275 int cfg_noffset, noffset; 276 const void *buf; 277 ulong start, end; 278 size_t size; 279 280 cfg_noffset = fit_conf_get_node(fit, NULL); 281 if (cfg_noffset < 0) { 282 printf("Could not find configuration node\n"); 283 return -ENOENT; 284 } 285 286 noffset = fit_conf_get_prop_node_index(fit, cfg_noffset, FIT_KERNEL_PROP, 0); 287 if (noffset < 0) { 288 printf("Could not find subimage node\n"); 289 return -ENOENT; 290 } 291 292 /* get image data address and length */ 293 if (fit_image_get_data(fit, noffset, &buf, &size)) { 294 printf("Could not find %s subimage data!\n", FIT_KERNEL_PROP); 295 return -ENOENT; 296 } 297 298 if (!bootz_setup((ulong)buf, &start, &end)) 299 ret = fit_image_fixup_alloc(fit, FIT_KERNEL_PROP, 300 "kernel_addr_c", MEM_KERNEL); 301 else 302 #endif 303 ret = fit_image_fixup_alloc(fit, FIT_KERNEL_PROP, 304 "kernel_addr_r", MEM_KERNEL); 305 if (ret < 0) 306 return ret; 307 308 return fit_image_fixup_alloc(fit, FIT_RAMDISK_PROP, 309 "ramdisk_addr_r", MEM_RAMDISK); 310 } 311 312 int fit_image_fail_process(const void *fit) 313 { 314 ulong raddr, kaddr, faddr; 315 316 raddr = env_get_ulong("ramdisk_addr_r", 16, 0); 317 kaddr = env_get_ulong("kernel_addr_r", 16, 0); 318 faddr = env_get_ulong("fdt_addr_r", 16, 0); 319 320 sysmem_free((phys_addr_t)fit); 321 sysmem_free((phys_addr_t)raddr); 322 sysmem_free((phys_addr_t)kaddr); 323 sysmem_free((phys_addr_t)faddr); 324 325 return 0; 326 } 327 328 static int fit_image_get_subnode(const void *fit, int noffset, const char *name) 329 { 330 int sub_noffset; 331 332 fdt_for_each_subnode(sub_noffset, fit, noffset) { 333 if (!strncmp(fit_get_name(fit, sub_noffset, NULL), 334 name, strlen(name))) 335 return sub_noffset; 336 } 337 338 return -ENOENT; 339 } 340 341 static int fit_image_load_one(const void *fit, struct blk_desc *dev_desc, 342 disk_partition_t *part, char *prop_name, 343 void *data, int check_hash) 344 { 345 u32 blk_num, blk_off; 346 int offset, size; 347 int noffset, ret; 348 char *msg = ""; 349 350 ret = fdt_image_get_offset_size(fit, prop_name, &offset, &size); 351 if (ret) 352 return ret; 353 354 blk_off = (FIT_ALIGN(fdt_totalsize(fit)) + offset) / dev_desc->blksz; 355 blk_num = DIV_ROUND_UP(size, dev_desc->blksz); 356 if (blk_dread(dev_desc, part->start + blk_off, blk_num, data) != blk_num) 357 return -EIO; 358 359 if (check_hash) { 360 int hash_noffset; 361 362 noffset = fit_default_conf_get_node(fit, prop_name); 363 if (noffset < 0) 364 return noffset; 365 366 hash_noffset = fit_image_get_subnode(fit, noffset, 367 FIT_HASH_NODENAME); 368 if (hash_noffset < 0) 369 return hash_noffset; 370 371 printf("%s: ", fdt_get_name(fit, noffset, NULL)); 372 ret = fit_image_check_hash(fit, hash_noffset, data, size, &msg); 373 if (ret) 374 return ret; 375 376 puts("+\n"); 377 } 378 379 return 0; 380 } 381 382 /* Calculate what we really need */ 383 ulong fit_image_get_bootables_size(const void *fit) 384 { 385 ulong off[3] = { 0, 0, 0 }; 386 ulong max_off, load; 387 int offset, size; 388 389 #if 0 390 if (!fit_get_totalsize(fit, &size)) 391 return size; 392 #endif 393 394 if (!fit_image_get_param(fit, FIT_FDT_PROP, &load, &offset, &size)) 395 off[0] = offset + FIT_ALIGN(size); 396 397 if (!fit_image_get_param(fit, FIT_KERNEL_PROP, &load, &offset, &size)) 398 off[1] = offset + FIT_ALIGN(size); 399 400 if (!fit_image_get_param(fit, FIT_RAMDISK_PROP, &load, &offset, &size)) 401 off[2] = offset + FIT_ALIGN(size); 402 403 max_off = max(off[0], off[1]); 404 max_off = max(max_off, off[2]); 405 406 return FIT_ALIGN(fdt_totalsize(fit)) + max_off; 407 } 408 409 void *fit_image_load_bootables(ulong *size) 410 { 411 struct blk_desc *dev_desc; 412 disk_partition_t part; 413 int blk_num; 414 void *fit; 415 416 dev_desc = rockchip_get_bootdev(); 417 if (!dev_desc) 418 return NULL; 419 420 fit = fit_get_blob(dev_desc, &part, false); 421 if (!fit) { 422 FIT_I("No fit blob\n"); 423 return NULL; 424 } 425 426 *size = fit_image_get_bootables_size(fit); 427 if (*size == 0) { 428 FIT_I("No bootable image\n"); 429 return NULL; 430 } 431 432 blk_num = DIV_ROUND_UP(*size, dev_desc->blksz); 433 fit = sysmem_alloc(MEM_FIT, blk_num * dev_desc->blksz); 434 if (!fit) 435 return NULL; 436 437 if (blk_dread(dev_desc, part.start, blk_num, fit) != blk_num) { 438 FIT_I("Failed to load bootable images\n"); 439 return NULL; 440 } 441 442 return fit; 443 } 444 445 static void fit_msg(const void *fit) 446 { 447 FIT_I("%ssigned, %sconf required\n", 448 fit_is_signed(fit, gd_fdt_blob()) ? "" : "no ", 449 fit_sig_require_conf(fit, gd_fdt_blob()) ? "" : "no "); 450 } 451 452 #ifdef CONFIG_ROCKCHIP_RESOURCE_IMAGE 453 ulong fit_image_init_resource(struct blk_desc *dev_desc) 454 { 455 disk_partition_t part; 456 void *fit, *buf; 457 int offset, size; 458 int ret = 0; 459 460 if (!dev_desc) 461 return -ENODEV; 462 463 fit = fit_get_blob(dev_desc, &part, true); 464 if (!fit) 465 return -EAGAIN; 466 467 ret = fdt_image_get_offset_size(fit, FIT_MULTI_PROP, &offset, &size); 468 if (ret) 469 return -EINVAL; 470 471 buf = memalign(ARCH_DMA_MINALIGN, ALIGN(size, dev_desc->blksz)); 472 if (!buf) 473 return -ENOMEM; 474 475 printf("RESC: '%s', blk@0x%08lx\n", part.name, 476 part.start + ((FIT_ALIGN(fdt_totalsize(fit)) + offset) / dev_desc->blksz)); 477 ret = fit_image_load_one(fit, dev_desc, &part, FIT_MULTI_PROP, buf, 1); 478 if (ret) 479 return ret; 480 481 ret = resource_setup_ram_list(dev_desc, buf); 482 if (ret) { 483 FIT_I("Failed to setup resource ram list, ret=%d\n", ret); 484 free(fit); 485 return ret; 486 } 487 488 fit_msg(fit); 489 free(fit); 490 491 return 0; 492 } 493 #else 494 int fit_image_read_dtb(void *fdt_addr) 495 { 496 struct blk_desc *dev_desc; 497 disk_partition_t part; 498 void *fit; 499 500 dev_desc = rockchip_get_bootdev(); 501 if (!dev_desc) { 502 FIT_I("No dev_desc!\n"); 503 return -ENODEV;; 504 } 505 506 fit = fit_get_blob(dev_desc, &part, true); 507 if (!fit) 508 return -EINVAL; 509 510 fit_msg(fit); 511 512 return fit_image_load_one(fit, dev_desc, &part, FIT_FDT_PROP, 513 (void *)fdt_addr, 1); 514 } 515 #endif 516