1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2016 Toradex, Inc. 4 */ 5 6 #include <common.h> 7 #include "tdx-cfg-block.h" 8 9 #if defined(CONFIG_TARGET_APALIS_IMX6) || defined(CONFIG_TARGET_COLIBRI_IMX6) 10 #include <asm/arch/sys_proto.h> 11 #else 12 #define is_cpu_type(cpu) (0) 13 #endif 14 #if defined(CONFIG_CPU_PXA27X) 15 #include <asm/arch-pxa/pxa.h> 16 #else 17 #define cpu_is_pxa27x(cpu) (0) 18 #endif 19 #include <cli.h> 20 #include <console.h> 21 #include <flash.h> 22 #include <malloc.h> 23 #include <mmc.h> 24 #include <nand.h> 25 #include <asm/mach-types.h> 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 #define TAG_VALID 0xcf01 30 #define TAG_MAC 0x0000 31 #define TAG_HW 0x0008 32 #define TAG_INVALID 0xffff 33 34 #define TAG_FLAG_VALID 0x1 35 36 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC) 37 #define TDX_CFG_BLOCK_MAX_SIZE 512 38 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) 39 #define TDX_CFG_BLOCK_MAX_SIZE 64 40 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) 41 #define TDX_CFG_BLOCK_MAX_SIZE 64 42 #else 43 #error Toradex config block location not set 44 #endif 45 46 struct toradex_tag { 47 u32 len:14; 48 u32 flags:2; 49 u32 id:16; 50 }; 51 52 bool valid_cfgblock; 53 struct toradex_hw tdx_hw_tag; 54 struct toradex_eth_addr tdx_eth_addr; 55 u32 tdx_serial; 56 57 const char * const toradex_modules[] = { 58 [0] = "UNKNOWN MODULE", 59 [1] = "Colibri PXA270 312MHz", 60 [2] = "Colibri PXA270 520MHz", 61 [3] = "Colibri PXA320 806MHz", 62 [4] = "Colibri PXA300 208MHz", 63 [5] = "Colibri PXA310 624MHz", 64 [6] = "Colibri PXA320 806MHz IT", 65 [7] = "Colibri PXA300 208MHz XT", 66 [8] = "Colibri PXA270 312MHz", 67 [9] = "Colibri PXA270 520MHz", 68 [10] = "Colibri VF50 128MB", /* not currently on sale */ 69 [11] = "Colibri VF61 256MB", 70 [12] = "Colibri VF61 256MB IT", 71 [13] = "Colibri VF50 128MB IT", 72 [14] = "Colibri iMX6 Solo 256MB", 73 [15] = "Colibri iMX6 DualLite 512MB", 74 [16] = "Colibri iMX6 Solo 256MB IT", 75 [17] = "Colibri iMX6 DualLite 512MB IT", 76 [18] = "UNKNOWN MODULE", 77 [19] = "UNKNOWN MODULE", 78 [20] = "Colibri T20 256MB", 79 [21] = "Colibri T20 512MB", 80 [22] = "Colibri T20 512MB IT", 81 [23] = "Colibri T30 1GB", 82 [24] = "Colibri T20 256MB IT", 83 [25] = "Apalis T30 2GB", 84 [26] = "Apalis T30 1GB", 85 [27] = "Apalis iMX6 Quad 1GB", 86 [28] = "Apalis iMX6 Quad 2GB IT", 87 [29] = "Apalis iMX6 Dual 512MB", 88 [30] = "Colibri T30 1GB IT", 89 [31] = "Apalis T30 1GB IT", 90 [32] = "Colibri iMX7 Solo 256MB", 91 [33] = "Colibri iMX7 Dual 512MB", 92 [34] = "Apalis TK1 2GB", 93 [35] = "Apalis iMX6 Dual 1GB IT", 94 [36] = "Colibri iMX6ULL 256MB", 95 [37] = "Apalis iMX8 QuadMax 4GB Wi-Fi / Bluetooth", 96 [38] = "Colibri iMX8X", 97 [39] = "Colibri iMX7 Dual 1GB (eMMC)", 98 [40] = "Colibri iMX6ULL 512MB Wi-Fi / Bluetooth IT", 99 [41] = "Colibri iMX7 Dual 512MB EPDC", 100 [42] = "Apalis TK1 4GB", 101 }; 102 103 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC 104 static int tdx_cfg_block_mmc_storage(u8 *config_block, int write) 105 { 106 struct mmc *mmc; 107 int dev = CONFIG_TDX_CFG_BLOCK_DEV; 108 int offset = CONFIG_TDX_CFG_BLOCK_OFFSET; 109 uint part = CONFIG_TDX_CFG_BLOCK_PART; 110 uint blk_start; 111 int ret = 0; 112 113 /* Read production parameter config block from eMMC */ 114 mmc = find_mmc_device(dev); 115 if (!mmc) { 116 puts("No MMC card found\n"); 117 ret = -ENODEV; 118 goto out; 119 } 120 if (part != mmc_get_blk_desc(mmc)->hwpart) { 121 if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) { 122 puts("MMC partition switch failed\n"); 123 ret = -ENODEV; 124 goto out; 125 } 126 } 127 if (offset < 0) 128 offset += mmc->capacity; 129 blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len; 130 131 if (!write) { 132 /* Careful reads a whole block of 512 bytes into config_block */ 133 if (blk_dread(mmc_get_blk_desc(mmc), blk_start, 1, 134 (unsigned char *)config_block) != 1) { 135 ret = -EIO; 136 goto out; 137 } 138 } else { 139 /* Just writing one 512 byte block */ 140 if (blk_dwrite(mmc_get_blk_desc(mmc), blk_start, 1, 141 (unsigned char *)config_block) != 1) { 142 ret = -EIO; 143 goto out; 144 } 145 } 146 147 out: 148 /* Switch back to regular eMMC user partition */ 149 blk_select_hwpart_devnum(IF_TYPE_MMC, 0, 0); 150 151 return ret; 152 } 153 #endif 154 155 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NAND 156 static int read_tdx_cfg_block_from_nand(unsigned char *config_block) 157 { 158 size_t size = TDX_CFG_BLOCK_MAX_SIZE; 159 160 /* Read production parameter config block from NAND page */ 161 return nand_read_skip_bad(get_nand_dev_by_index(0), 162 CONFIG_TDX_CFG_BLOCK_OFFSET, 163 &size, NULL, TDX_CFG_BLOCK_MAX_SIZE, 164 config_block); 165 } 166 167 static int write_tdx_cfg_block_to_nand(unsigned char *config_block) 168 { 169 size_t size = TDX_CFG_BLOCK_MAX_SIZE; 170 171 /* Write production parameter config block to NAND page */ 172 return nand_write_skip_bad(get_nand_dev_by_index(0), 173 CONFIG_TDX_CFG_BLOCK_OFFSET, 174 &size, NULL, TDX_CFG_BLOCK_MAX_SIZE, 175 config_block, WITH_WR_VERIFY); 176 } 177 #endif 178 179 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NOR 180 static int read_tdx_cfg_block_from_nor(unsigned char *config_block) 181 { 182 /* Read production parameter config block from NOR flash */ 183 memcpy(config_block, (void *)CONFIG_TDX_CFG_BLOCK_OFFSET, 184 TDX_CFG_BLOCK_MAX_SIZE); 185 return 0; 186 } 187 188 static int write_tdx_cfg_block_to_nor(unsigned char *config_block) 189 { 190 /* Write production parameter config block to NOR flash */ 191 return flash_write((void *)config_block, CONFIG_TDX_CFG_BLOCK_OFFSET, 192 TDX_CFG_BLOCK_MAX_SIZE); 193 } 194 #endif 195 196 int read_tdx_cfg_block(void) 197 { 198 int ret = 0; 199 u8 *config_block = NULL; 200 struct toradex_tag *tag; 201 size_t size = TDX_CFG_BLOCK_MAX_SIZE; 202 int offset; 203 204 /* Allocate RAM area for config block */ 205 config_block = memalign(ARCH_DMA_MINALIGN, size); 206 if (!config_block) { 207 printf("Not enough malloc space available!\n"); 208 return -ENOMEM; 209 } 210 211 memset(config_block, 0, size); 212 213 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC) 214 ret = tdx_cfg_block_mmc_storage(config_block, 0); 215 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) 216 ret = read_tdx_cfg_block_from_nand(config_block); 217 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) 218 ret = read_tdx_cfg_block_from_nor(config_block); 219 #else 220 ret = -EINVAL; 221 #endif 222 if (ret) 223 goto out; 224 225 /* Expect a valid tag first */ 226 tag = (struct toradex_tag *)config_block; 227 if (tag->flags != TAG_FLAG_VALID || tag->id != TAG_VALID) { 228 valid_cfgblock = false; 229 ret = -EINVAL; 230 goto out; 231 } 232 valid_cfgblock = true; 233 offset = 4; 234 235 while (offset < TDX_CFG_BLOCK_MAX_SIZE) { 236 tag = (struct toradex_tag *)(config_block + offset); 237 offset += 4; 238 if (tag->id == TAG_INVALID) 239 break; 240 241 if (tag->flags == TAG_FLAG_VALID) { 242 switch (tag->id) { 243 case TAG_MAC: 244 memcpy(&tdx_eth_addr, config_block + offset, 245 6); 246 247 /* NIC part of MAC address is serial number */ 248 tdx_serial = ntohl(tdx_eth_addr.nic) >> 8; 249 break; 250 case TAG_HW: 251 memcpy(&tdx_hw_tag, config_block + offset, 8); 252 break; 253 } 254 } 255 256 /* Get to next tag according to current tags length */ 257 offset += tag->len * 4; 258 } 259 260 /* Cap product id to avoid issues with a yet unknown one */ 261 if (tdx_hw_tag.prodid > (sizeof(toradex_modules) / 262 sizeof(toradex_modules[0]))) 263 tdx_hw_tag.prodid = 0; 264 265 out: 266 free(config_block); 267 return ret; 268 } 269 270 static int get_cfgblock_interactive(void) 271 { 272 char message[CONFIG_SYS_CBSIZE]; 273 char *soc; 274 char it = 'n'; 275 int len; 276 277 if (cpu_is_pxa27x()) 278 sprintf(message, "Is the module the 312 MHz version? [y/N] "); 279 else 280 sprintf(message, "Is the module an IT version? [y/N] "); 281 282 len = cli_readline(message); 283 it = console_buffer[0]; 284 285 soc = env_get("soc"); 286 if (!strcmp("mx6", soc)) { 287 #ifdef CONFIG_MACH_TYPE 288 if (it == 'y' || it == 'Y') 289 if (is_cpu_type(MXC_CPU_MX6Q)) 290 tdx_hw_tag.prodid = APALIS_IMX6Q_IT; 291 else 292 tdx_hw_tag.prodid = APALIS_IMX6D_IT; 293 else 294 if (is_cpu_type(MXC_CPU_MX6Q)) 295 tdx_hw_tag.prodid = APALIS_IMX6Q; 296 else 297 tdx_hw_tag.prodid = APALIS_IMX6D; 298 #else 299 if (it == 'y' || it == 'Y') 300 if (is_cpu_type(MXC_CPU_MX6DL)) 301 tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT; 302 else 303 tdx_hw_tag.prodid = COLIBRI_IMX6S_IT; 304 else 305 if (is_cpu_type(MXC_CPU_MX6DL)) 306 tdx_hw_tag.prodid = COLIBRI_IMX6DL; 307 else 308 tdx_hw_tag.prodid = COLIBRI_IMX6S; 309 #endif /* CONFIG_MACH_TYPE */ 310 } else if (!strcmp("imx7d", soc)) { 311 tdx_hw_tag.prodid = COLIBRI_IMX7D; 312 } else if (!strcmp("imx7s", soc)) { 313 tdx_hw_tag.prodid = COLIBRI_IMX7S; 314 } else if (!strcmp("tegra20", soc)) { 315 if (it == 'y' || it == 'Y') 316 if (gd->ram_size == 0x10000000) 317 tdx_hw_tag.prodid = COLIBRI_T20_256MB_IT; 318 else 319 tdx_hw_tag.prodid = COLIBRI_T20_512MB_IT; 320 else 321 if (gd->ram_size == 0x10000000) 322 tdx_hw_tag.prodid = COLIBRI_T20_256MB; 323 else 324 tdx_hw_tag.prodid = COLIBRI_T20_512MB; 325 } else if (cpu_is_pxa27x()) { 326 if (it == 'y' || it == 'Y') 327 tdx_hw_tag.prodid = COLIBRI_PXA270_312MHZ; 328 else 329 tdx_hw_tag.prodid = COLIBRI_PXA270_520MHZ; 330 #ifdef CONFIG_MACH_TYPE 331 } else if (!strcmp("tegra30", soc)) { 332 if (CONFIG_MACH_TYPE == MACH_TYPE_APALIS_T30) { 333 if (it == 'y' || it == 'Y') 334 tdx_hw_tag.prodid = APALIS_T30_IT; 335 else 336 if (gd->ram_size == 0x40000000) 337 tdx_hw_tag.prodid = APALIS_T30_1GB; 338 else 339 tdx_hw_tag.prodid = APALIS_T30_2GB; 340 } else { 341 if (it == 'y' || it == 'Y') 342 tdx_hw_tag.prodid = COLIBRI_T30_IT; 343 else 344 tdx_hw_tag.prodid = COLIBRI_T30; 345 } 346 #endif /* CONFIG_MACH_TYPE */ 347 } else if (!strcmp("tegra124", soc)) { 348 tdx_hw_tag.prodid = APALIS_TK1_2GB; 349 } else if (!strcmp("vf500", soc)) { 350 if (it == 'y' || it == 'Y') 351 tdx_hw_tag.prodid = COLIBRI_VF50_IT; 352 else 353 tdx_hw_tag.prodid = COLIBRI_VF50; 354 } else if (!strcmp("vf610", soc)) { 355 if (it == 'y' || it == 'Y') 356 tdx_hw_tag.prodid = COLIBRI_VF61_IT; 357 else 358 tdx_hw_tag.prodid = COLIBRI_VF61; 359 } else { 360 printf("Module type not detectable due to unknown SoC\n"); 361 return -1; 362 } 363 364 while (len < 4) { 365 sprintf(message, "Enter the module version (e.g. V1.1B): V"); 366 len = cli_readline(message); 367 } 368 369 tdx_hw_tag.ver_major = console_buffer[0] - '0'; 370 tdx_hw_tag.ver_minor = console_buffer[2] - '0'; 371 tdx_hw_tag.ver_assembly = console_buffer[3] - 'A'; 372 373 if (cpu_is_pxa27x() && (tdx_hw_tag.ver_major == 1)) 374 tdx_hw_tag.prodid -= (COLIBRI_PXA270_312MHZ - 375 COLIBRI_PXA270_V1_312MHZ); 376 377 while (len < 8) { 378 sprintf(message, "Enter module serial number: "); 379 len = cli_readline(message); 380 } 381 382 tdx_serial = simple_strtoul(console_buffer, NULL, 10); 383 384 return 0; 385 } 386 387 static int get_cfgblock_barcode(char *barcode) 388 { 389 if (strlen(barcode) < 16) { 390 printf("Argument too short, barcode is 16 chars long\n"); 391 return -1; 392 } 393 394 /* Get hardware information from the first 8 digits */ 395 tdx_hw_tag.ver_major = barcode[4] - '0'; 396 tdx_hw_tag.ver_minor = barcode[5] - '0'; 397 tdx_hw_tag.ver_assembly = barcode[7] - '0'; 398 399 barcode[4] = '\0'; 400 tdx_hw_tag.prodid = simple_strtoul(barcode, NULL, 10); 401 402 /* Parse second part of the barcode (serial number */ 403 barcode += 8; 404 tdx_serial = simple_strtoul(barcode, NULL, 10); 405 406 return 0; 407 } 408 409 static int do_cfgblock_create(cmd_tbl_t *cmdtp, int flag, int argc, 410 char * const argv[]) 411 { 412 u8 *config_block; 413 struct toradex_tag *tag; 414 size_t size = TDX_CFG_BLOCK_MAX_SIZE; 415 int offset = 0; 416 int ret = CMD_RET_SUCCESS; 417 int err; 418 419 /* Allocate RAM area for config block */ 420 config_block = memalign(ARCH_DMA_MINALIGN, size); 421 if (!config_block) { 422 printf("Not enough malloc space available!\n"); 423 return CMD_RET_FAILURE; 424 } 425 426 memset(config_block, 0xff, size); 427 428 read_tdx_cfg_block(); 429 if (valid_cfgblock) { 430 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) 431 /* 432 * On NAND devices, recreation is only allowed if the page is 433 * empty (config block invalid...) 434 */ 435 printf("NAND erase block %d need to be erased before creating a Toradex config block\n", 436 CONFIG_TDX_CFG_BLOCK_OFFSET / 437 get_nand_dev_by_index(0)->erasesize); 438 goto out; 439 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) 440 /* 441 * On NOR devices, recreation is only allowed if the sector is 442 * empty and write protection is off (config block invalid...) 443 */ 444 printf("NOR sector at offset 0x%02x need to be erased and unprotected before creating a Toradex config block\n", 445 CONFIG_TDX_CFG_BLOCK_OFFSET); 446 goto out; 447 #else 448 char message[CONFIG_SYS_CBSIZE]; 449 sprintf(message, 450 "A valid Toradex config block is present, still recreate? [y/N] "); 451 452 if (!cli_readline(message)) 453 goto out; 454 455 if (console_buffer[0] != 'y' && console_buffer[0] != 'Y') 456 goto out; 457 #endif 458 } 459 460 /* Parse new Toradex config block data... */ 461 if (argc < 3) 462 err = get_cfgblock_interactive(); 463 else 464 err = get_cfgblock_barcode(argv[2]); 465 466 if (err) { 467 ret = CMD_RET_FAILURE; 468 goto out; 469 } 470 471 /* Convert serial number to MAC address (the storage format) */ 472 tdx_eth_addr.oui = htonl(0x00142dUL << 8); 473 tdx_eth_addr.nic = htonl(tdx_serial << 8); 474 475 /* Valid Tag */ 476 tag = (struct toradex_tag *)config_block; 477 tag->id = TAG_VALID; 478 tag->flags = TAG_FLAG_VALID; 479 tag->len = 0; 480 offset += 4; 481 482 /* Product Tag */ 483 tag = (struct toradex_tag *)(config_block + offset); 484 tag->id = TAG_HW; 485 tag->flags = TAG_FLAG_VALID; 486 tag->len = 2; 487 offset += 4; 488 489 memcpy(config_block + offset, &tdx_hw_tag, 8); 490 offset += 8; 491 492 /* MAC Tag */ 493 tag = (struct toradex_tag *)(config_block + offset); 494 tag->id = TAG_MAC; 495 tag->flags = TAG_FLAG_VALID; 496 tag->len = 2; 497 offset += 4; 498 499 memcpy(config_block + offset, &tdx_eth_addr, 6); 500 offset += 6; 501 memset(config_block + offset, 0, 32 - offset); 502 503 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC) 504 err = tdx_cfg_block_mmc_storage(config_block, 1); 505 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND) 506 err = write_tdx_cfg_block_to_nand(config_block); 507 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR) 508 err = write_tdx_cfg_block_to_nor(config_block); 509 #else 510 err = -EINVAL; 511 #endif 512 if (err) { 513 printf("Failed to write Toradex config block: %d\n", ret); 514 ret = CMD_RET_FAILURE; 515 goto out; 516 } 517 518 printf("Toradex config block successfully written\n"); 519 520 out: 521 free(config_block); 522 return ret; 523 } 524 525 static int do_cfgblock(cmd_tbl_t *cmdtp, int flag, int argc, 526 char * const argv[]) 527 { 528 int ret; 529 530 if (argc < 2) 531 return CMD_RET_USAGE; 532 533 if (!strcmp(argv[1], "create")) { 534 return do_cfgblock_create(cmdtp, flag, argc, argv); 535 } else if (!strcmp(argv[1], "reload")) { 536 ret = read_tdx_cfg_block(); 537 if (ret) { 538 printf("Failed to reload Toradex config block: %d\n", 539 ret); 540 return CMD_RET_FAILURE; 541 } 542 return CMD_RET_SUCCESS; 543 } 544 545 return CMD_RET_USAGE; 546 } 547 548 U_BOOT_CMD( 549 cfgblock, 3, 0, do_cfgblock, 550 "Toradex config block handling commands", 551 "create [barcode] - (Re-)create Toradex config block\n" 552 "cfgblock reload - Reload Toradex config block from flash" 553 ); 554