board/toradex/common/tdx-cfg-block.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2016-2019 Toradex, Inc.
   4  */
   5
   6 #include <common.h>
   7 #include "tdx-cfg-block.h"
   8
   9 #if defined(CONFIG_TARGET_APALIS_IMX6) || \
  10         defined(CONFIG_TARGET_APALIS_IMX8) || \
  11         defined(CONFIG_TARGET_COLIBRI_IMX6) || \
  12         defined(CONFIG_TARGET_COLIBRI_IMX8X)
  13 #include <asm/arch/sys_proto.h>
  14 #else
  15 #define is_cpu_type(cpu) (0)
  16 #endif
  17 #if defined(CONFIG_CPU_PXA27X)
  18 #include <asm/arch-pxa/pxa.h>
  19 #else
  20 #define cpu_is_pxa27x(cpu) (0)
  21 #endif
  22 #include <cli.h>
  23 #include <console.h>
  24 #include <env.h>
  25 #include <flash.h>
  26 #include <malloc.h>
  27 #include <mmc.h>
  28 #include <nand.h>
  29 #include <asm/mach-types.h>
  30
  31 DECLARE_GLOBAL_DATA_PTR;
  32
  33 #define TAG_VALID       0xcf01
  34 #define TAG_MAC         0x0000
  35 #define TAG_HW          0x0008
  36 #define TAG_INVALID     0xffff
  37
  38 #define TAG_FLAG_VALID  0x1
  39
  40 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
  41 #define TDX_CFG_BLOCK_MAX_SIZE 512
  42 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
  43 #define TDX_CFG_BLOCK_MAX_SIZE 64
  44 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
  45 #define TDX_CFG_BLOCK_MAX_SIZE 64
  46 #else
  47 #error Toradex config block location not set
  48 #endif
  49
  50 struct toradex_tag {
  51         u32 len:14;
  52         u32 flags:2;
  53         u32 id:16;
  54 };
  55
  56 bool valid_cfgblock;
  57 struct toradex_hw tdx_hw_tag;
  58 struct toradex_eth_addr tdx_eth_addr;
  59 u32 tdx_serial;
  60
  61 const char * const toradex_modules[] = {
  62          [0] = "UNKNOWN MODULE",
  63          [1] = "Colibri PXA270 312MHz",
  64          [2] = "Colibri PXA270 520MHz",
  65          [3] = "Colibri PXA320 806MHz",
  66          [4] = "Colibri PXA300 208MHz",
  67          [5] = "Colibri PXA310 624MHz",
  68          [6] = "Colibri PXA320 806MHz IT",
  69          [7] = "Colibri PXA300 208MHz XT",
  70          [8] = "Colibri PXA270 312MHz",
  71          [9] = "Colibri PXA270 520MHz",
  72         [10] = "Colibri VF50 128MB", /* not currently on sale */
  73         [11] = "Colibri VF61 256MB",
  74         [12] = "Colibri VF61 256MB IT",
  75         [13] = "Colibri VF50 128MB IT",
  76         [14] = "Colibri iMX6 Solo 256MB",
  77         [15] = "Colibri iMX6 DualLite 512MB",
  78         [16] = "Colibri iMX6 Solo 256MB IT",
  79         [17] = "Colibri iMX6 DualLite 512MB IT",
  80         [18] = "UNKNOWN MODULE",
  81         [19] = "UNKNOWN MODULE",
  82         [20] = "Colibri T20 256MB",
  83         [21] = "Colibri T20 512MB",
  84         [22] = "Colibri T20 512MB IT",
  85         [23] = "Colibri T30 1GB",
  86         [24] = "Colibri T20 256MB IT",
  87         [25] = "Apalis T30 2GB",
  88         [26] = "Apalis T30 1GB",
  89         [27] = "Apalis iMX6 Quad 1GB",
  90         [28] = "Apalis iMX6 Quad 2GB IT",
  91         [29] = "Apalis iMX6 Dual 512MB",
  92         [30] = "Colibri T30 1GB IT",
  93         [31] = "Apalis T30 1GB IT",
  94         [32] = "Colibri iMX7 Solo 256MB",
  95         [33] = "Colibri iMX7 Dual 512MB",
  96         [34] = "Apalis TK1 2GB",
  97         [35] = "Apalis iMX6 Dual 1GB IT",
  98         [36] = "Colibri iMX6ULL 256MB",
  99         [37] = "Apalis iMX8 QuadMax 4GB Wi-Fi / BT IT",
 100         [38] = "Colibri iMX8 QuadXPlus 2GB Wi-Fi / BT IT",
 101         [39] = "Colibri iMX7 Dual 1GB (eMMC)",
 102         [40] = "Colibri iMX6ULL 512MB Wi-Fi / BT IT",
 103         [41] = "Colibri iMX7 Dual 512MB EPDC",
 104         [42] = "Apalis TK1 4GB",
 105         [43] = "Colibri T20 512MB IT SETEK",
 106         [44] = "Colibri iMX6ULL 512MB IT",
 107         [45] = "Colibri iMX6ULL 512MB Wi-Fi / Bluetooth",
 108         [46] = "Apalis iMX8 QuadXPlus 2GB Wi-Fi / BT IT",
 109         [47] = "Apalis iMX8 QuadMax 4GB IT",
 110         [48] = "Apalis iMX8 QuadPlus 2GB Wi-Fi / BT",
 111         [49] = "Apalis iMX8 QuadPlus 2GB",
 112         [50] = "Colibri iMX8 QuadXPlus 2GB IT",
 113         [51] = "Colibri iMX8 DualX 1GB Wi-Fi / Bluetooth",
 114         [52] = "Colibri iMX8 DualX 1GB",
 115 };
 116
 117 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC
 118 static int tdx_cfg_block_mmc_storage(u8 *config_block, int write)
 119 {
 120         struct mmc *mmc;
 121         int dev = CONFIG_TDX_CFG_BLOCK_DEV;
 122         int offset = CONFIG_TDX_CFG_BLOCK_OFFSET;
 123         uint part = CONFIG_TDX_CFG_BLOCK_PART;
 124         uint blk_start;
 125         int ret = 0;
 126
 127         /* Read production parameter config block from eMMC */
 128         mmc = find_mmc_device(dev);
 129         if (!mmc) {
 130                 puts("No MMC card found\n");
 131                 ret = -ENODEV;
 132                 goto out;
 133         }
 134         if (mmc_init(mmc)) {
 135                 puts("MMC init failed\n");
 136                 return -EINVAL;
 137         }
 138         if (part != mmc_get_blk_desc(mmc)->hwpart) {
 139                 if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) {
 140                         puts("MMC partition switch failed\n");
 141                         ret = -ENODEV;
 142                         goto out;
 143                 }
 144         }
 145         if (offset < 0)
 146                 offset += mmc->capacity;
 147         blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len;
 148
 149         if (!write) {
 150                 /* Careful reads a whole block of 512 bytes into config_block */
 151                 if (blk_dread(mmc_get_blk_desc(mmc), blk_start, 1,
 152                               (unsigned char *)config_block) != 1) {
 153                         ret = -EIO;
 154                         goto out;
 155                 }
 156         } else {
 157                 /* Just writing one 512 byte block */
 158                 if (blk_dwrite(mmc_get_blk_desc(mmc), blk_start, 1,
 159                                (unsigned char *)config_block) != 1) {
 160                         ret = -EIO;
 161                         goto out;
 162                 }
 163         }
 164
 165 out:
 166         /* Switch back to regular eMMC user partition */
 167         blk_select_hwpart_devnum(IF_TYPE_MMC, 0, 0);
 168
 169         return ret;
 170 }
 171 #endif
 172
 173 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NAND
 174 static int read_tdx_cfg_block_from_nand(unsigned char *config_block)
 175 {
 176         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 177         struct mtd_info *mtd = get_nand_dev_by_index(0);
 178
 179         if (!mtd)
 180                 return -ENODEV;
 181
 182         /* Read production parameter config block from NAND page */
 183         return nand_read_skip_bad(mtd, CONFIG_TDX_CFG_BLOCK_OFFSET,
 184                                   &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
 185                                   config_block);
 186 }
 187
 188 static int write_tdx_cfg_block_to_nand(unsigned char *config_block)
 189 {
 190         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 191
 192         /* Write production parameter config block to NAND page */
 193         return nand_write_skip_bad(get_nand_dev_by_index(0),
 194                                    CONFIG_TDX_CFG_BLOCK_OFFSET,
 195                                    &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
 196                                    config_block, WITH_WR_VERIFY);
 197 }
 198 #endif
 199
 200 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NOR
 201 static int read_tdx_cfg_block_from_nor(unsigned char *config_block)
 202 {
 203         /* Read production parameter config block from NOR flash */
 204         memcpy(config_block, (void *)CONFIG_TDX_CFG_BLOCK_OFFSET,
 205                TDX_CFG_BLOCK_MAX_SIZE);
 206         return 0;
 207 }
 208
 209 static int write_tdx_cfg_block_to_nor(unsigned char *config_block)
 210 {
 211         /* Write production parameter config block to NOR flash */
 212         return flash_write((void *)config_block, CONFIG_TDX_CFG_BLOCK_OFFSET,
 213                            TDX_CFG_BLOCK_MAX_SIZE);
 214 }
 215 #endif
 216
 217 int read_tdx_cfg_block(void)
 218 {
 219         int ret = 0;
 220         u8 *config_block = NULL;
 221         struct toradex_tag *tag;
 222         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 223         int offset;
 224
 225         /* Allocate RAM area for config block */
 226         config_block = memalign(ARCH_DMA_MINALIGN, size);
 227         if (!config_block) {
 228                 printf("Not enough malloc space available!\n");
 229                 return -ENOMEM;
 230         }
 231
 232         memset(config_block, 0, size);
 233
 234 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
 235         ret = tdx_cfg_block_mmc_storage(config_block, 0);
 236 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 237         ret = read_tdx_cfg_block_from_nand(config_block);
 238 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 239         ret = read_tdx_cfg_block_from_nor(config_block);
 240 #else
 241         ret = -EINVAL;
 242 #endif
 243         if (ret)
 244                 goto out;
 245
 246         /* Expect a valid tag first */
 247         tag = (struct toradex_tag *)config_block;
 248         if (tag->flags != TAG_FLAG_VALID || tag->id != TAG_VALID) {
 249                 valid_cfgblock = false;
 250                 ret = -EINVAL;
 251                 goto out;
 252         }
 253         valid_cfgblock = true;
 254         offset = 4;
 255
 256         while (offset < TDX_CFG_BLOCK_MAX_SIZE) {
 257                 tag = (struct toradex_tag *)(config_block + offset);
 258                 offset += 4;
 259                 if (tag->id == TAG_INVALID)
 260                         break;
 261
 262                 if (tag->flags == TAG_FLAG_VALID) {
 263                         switch (tag->id) {
 264                         case TAG_MAC:
 265                                 memcpy(&tdx_eth_addr, config_block + offset,
 266                                        6);
 267
 268                                 /* NIC part of MAC address is serial number */
 269                                 tdx_serial = ntohl(tdx_eth_addr.nic) >> 8;
 270                                 break;
 271                         case TAG_HW:
 272                                 memcpy(&tdx_hw_tag, config_block + offset, 8);
 273                                 break;
 274                         }
 275                 }
 276
 277                 /* Get to next tag according to current tags length */
 278                 offset += tag->len * 4;
 279         }
 280
 281         /* Cap product id to avoid issues with a yet unknown one */
 282         if (tdx_hw_tag.prodid >= (sizeof(toradex_modules) /
 283                                   sizeof(toradex_modules[0])))
 284                 tdx_hw_tag.prodid = 0;
 285
 286 out:
 287         free(config_block);
 288         return ret;
 289 }
 290
 291 static int get_cfgblock_interactive(void)
 292 {
 293         char message[CONFIG_SYS_CBSIZE];
 294         char *soc;
 295         char it = 'n';
 296         char wb = 'n';
 297         int len;
 298
 299         /* Unknown module by default */
 300         tdx_hw_tag.prodid = 0;
 301
 302         if (cpu_is_pxa27x())
 303                 sprintf(message, "Is the module the 312 MHz version? [y/N] ");
 304         else
 305                 sprintf(message, "Is the module an IT version? [y/N] ");
 306         len = cli_readline(message);
 307         it = console_buffer[0];
 308
 309 #if defined(CONFIG_TARGET_APALIS_IMX8) || \
 310                 defined(CONFIG_TARGET_COLIBRI_IMX6ULL) || \
 311                 defined(CONFIG_TARGET_COLIBRI_IMX8X)
 312         sprintf(message, "Does the module have Wi-Fi / Bluetooth? [y/N] ");
 313         len = cli_readline(message);
 314         wb = console_buffer[0];
 315 #endif
 316
 317         soc = env_get("soc");
 318         if (!strcmp("mx6", soc)) {
 319 #ifdef CONFIG_TARGET_APALIS_IMX6
 320                 if (it == 'y' || it == 'Y') {
 321                         if (is_cpu_type(MXC_CPU_MX6Q))
 322                                 tdx_hw_tag.prodid = APALIS_IMX6Q_IT;
 323                         else
 324                                 tdx_hw_tag.prodid = APALIS_IMX6D_IT;
 325                 } else {
 326                         if (is_cpu_type(MXC_CPU_MX6Q))
 327                                 tdx_hw_tag.prodid = APALIS_IMX6Q;
 328                         else
 329                                 tdx_hw_tag.prodid = APALIS_IMX6D;
 330                 }
 331 #elif CONFIG_TARGET_COLIBRI_IMX6
 332                 if (it == 'y' || it == 'Y') {
 333                         if (is_cpu_type(MXC_CPU_MX6DL))
 334                                 tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT;
 335                         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 336                                 tdx_hw_tag.prodid = COLIBRI_IMX6S_IT;
 337                 } else {
 338                         if (is_cpu_type(MXC_CPU_MX6DL))
 339                                 tdx_hw_tag.prodid = COLIBRI_IMX6DL;
 340                         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 341                                 tdx_hw_tag.prodid = COLIBRI_IMX6S;
 342                 }
 343 #elif CONFIG_TARGET_COLIBRI_IMX6ULL
 344                 if (it == 'y' || it == 'Y') {
 345                         if (wb == 'y' || wb == 'Y')
 346                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT_IT;
 347                         else
 348                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_IT;
 349                 } else {
 350                         if (wb == 'y' || wb == 'Y')
 351                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT;
 352                         else
 353                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL;
 354                 }
 355 #endif
 356         } else if (!strcmp("imx7d", soc))
 357                 tdx_hw_tag.prodid = COLIBRI_IMX7D;
 358         else if (!strcmp("imx7s", soc))
 359                 tdx_hw_tag.prodid = COLIBRI_IMX7S;
 360         else if (is_cpu_type(MXC_CPU_IMX8QM)) {
 361                 if (it == 'y' || it == 'Y') {
 362                         if (wb == 'y' || wb == 'Y')
 363                                 tdx_hw_tag.prodid = APALIS_IMX8QM_WIFI_BT_IT;
 364                         else
 365                                 tdx_hw_tag.prodid = APALIS_IMX8QM_IT;
 366                 } else {
 367                         if (wb == 'y' || wb == 'Y')
 368                                 tdx_hw_tag.prodid = APALIS_IMX8QP_WIFI_BT;
 369                         else
 370                                 tdx_hw_tag.prodid = APALIS_IMX8QP;
 371                 }
 372         } else if (is_cpu_type(MXC_CPU_IMX8QXP)) {
 373                 if (it == 'y' || it == 'Y') {
 374                         if (wb == 'y' || wb == 'Y')
 375                                 tdx_hw_tag.prodid = COLIBRI_IMX8QXP_WIFI_BT_IT;
 376                         else
 377                                 tdx_hw_tag.prodid = COLIBRI_IMX8QXP_IT;
 378                 } else {
 379                         if (wb == 'y' || wb == 'Y')
 380                                 tdx_hw_tag.prodid = COLIBRI_IMX8DX_WIFI_BT;
 381                         else
 382                                 tdx_hw_tag.prodid = COLIBRI_IMX8DX;
 383                 }
 384         } else if (!strcmp("tegra20", soc)) {
 385                 if (it == 'y' || it == 'Y')
 386                         if (gd->ram_size == 0x10000000)
 387                                 tdx_hw_tag.prodid = COLIBRI_T20_256MB_IT;
 388                         else
 389                                 tdx_hw_tag.prodid = COLIBRI_T20_512MB_IT;
 390                 else
 391                         if (gd->ram_size == 0x10000000)
 392                                 tdx_hw_tag.prodid = COLIBRI_T20_256MB;
 393                         else
 394                                 tdx_hw_tag.prodid = COLIBRI_T20_512MB;
 395         } else if (cpu_is_pxa27x()) {
 396                 if (it == 'y' || it == 'Y')
 397                         tdx_hw_tag.prodid = COLIBRI_PXA270_312MHZ;
 398                 else
 399                         tdx_hw_tag.prodid = COLIBRI_PXA270_520MHZ;
 400         }
 401 #ifdef CONFIG_MACH_TYPE
 402         else if (!strcmp("tegra30", soc)) {
 403                 if (CONFIG_MACH_TYPE == MACH_TYPE_APALIS_T30) {
 404                         if (it == 'y' || it == 'Y')
 405                                 tdx_hw_tag.prodid = APALIS_T30_IT;
 406                         else
 407                                 if (gd->ram_size == 0x40000000)
 408                                         tdx_hw_tag.prodid = APALIS_T30_1GB;
 409                                 else
 410                                         tdx_hw_tag.prodid = APALIS_T30_2GB;
 411                 } else {
 412                         if (it == 'y' || it == 'Y')
 413                                 tdx_hw_tag.prodid = COLIBRI_T30_IT;
 414                         else
 415                                 tdx_hw_tag.prodid = COLIBRI_T30;
 416                 }
 417         }
 418 #endif /* CONFIG_MACH_TYPE */
 419         else if (!strcmp("tegra124", soc)) {
 420                 tdx_hw_tag.prodid = APALIS_TK1_2GB;
 421         } else if (!strcmp("vf500", soc)) {
 422                 if (it == 'y' || it == 'Y')
 423                         tdx_hw_tag.prodid = COLIBRI_VF50_IT;
 424                 else
 425                         tdx_hw_tag.prodid = COLIBRI_VF50;
 426         } else if (!strcmp("vf610", soc)) {
 427                 if (it == 'y' || it == 'Y')
 428                         tdx_hw_tag.prodid = COLIBRI_VF61_IT;
 429                 else
 430                         tdx_hw_tag.prodid = COLIBRI_VF61;
 431         }
 432
 433         if (!tdx_hw_tag.prodid) {
 434                 printf("Module type not detectable due to unknown SoC\n");
 435                 return -1;
 436         }
 437
 438         while (len < 4) {
 439                 sprintf(message, "Enter the module version (e.g. V1.1B): V");
 440                 len = cli_readline(message);
 441         }
 442
 443         tdx_hw_tag.ver_major = console_buffer[0] - '0';
 444         tdx_hw_tag.ver_minor = console_buffer[2] - '0';
 445         tdx_hw_tag.ver_assembly = console_buffer[3] - 'A';
 446
 447         if (cpu_is_pxa27x() && tdx_hw_tag.ver_major == 1)
 448                 tdx_hw_tag.prodid -= (COLIBRI_PXA270_312MHZ -
 449                                        COLIBRI_PXA270_V1_312MHZ);
 450
 451         while (len < 8) {
 452                 sprintf(message, "Enter module serial number: ");
 453                 len = cli_readline(message);
 454         }
 455
 456         tdx_serial = simple_strtoul(console_buffer, NULL, 10);
 457
 458         return 0;
 459 }
 460
 461 static int get_cfgblock_barcode(char *barcode)
 462 {
 463         if (strlen(barcode) < 16) {
 464                 printf("Argument too short, barcode is 16 chars long\n");
 465                 return -1;
 466         }
 467
 468         /* Get hardware information from the first 8 digits */
 469         tdx_hw_tag.ver_major = barcode[4] - '0';
 470         tdx_hw_tag.ver_minor = barcode[5] - '0';
 471         tdx_hw_tag.ver_assembly = barcode[7] - '0';
 472
 473         barcode[4] = '\0';
 474         tdx_hw_tag.prodid = simple_strtoul(barcode, NULL, 10);
 475
 476         /* Parse second part of the barcode (serial number */
 477         barcode += 8;
 478         tdx_serial = simple_strtoul(barcode, NULL, 10);
 479
 480         return 0;
 481 }
 482
 483 static int do_cfgblock_create(cmd_tbl_t *cmdtp, int flag, int argc,
 484                               char * const argv[])
 485 {
 486         u8 *config_block;
 487         struct toradex_tag *tag;
 488         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 489         int offset = 0;
 490         int ret = CMD_RET_SUCCESS;
 491         int err;
 492         int force_overwrite = 0;
 493
 494         /* Allocate RAM area for config block */
 495         config_block = memalign(ARCH_DMA_MINALIGN, size);
 496         if (!config_block) {
 497                 printf("Not enough malloc space available!\n");
 498                 return CMD_RET_FAILURE;
 499         }
 500
 501         memset(config_block, 0xff, size);
 502
 503         if (argc >= 3) {
 504                 if (argv[2][0] == '-' && argv[2][1] == 'y')
 505                         force_overwrite = 1;
 506         }
 507
 508         read_tdx_cfg_block();
 509         if (valid_cfgblock) {
 510 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 511                 /*
 512                  * On NAND devices, recreation is only allowed if the page is
 513                  * empty (config block invalid...)
 514                  */
 515                 printf("NAND erase block %d need to be erased before creating a Toradex config block\n",
 516                        CONFIG_TDX_CFG_BLOCK_OFFSET /
 517                        get_nand_dev_by_index(0)->erasesize);
 518                 goto out;
 519 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 520                 /*
 521                  * On NOR devices, recreation is only allowed if the sector is
 522                  * empty and write protection is off (config block invalid...)
 523                  */
 524                 printf("NOR sector at offset 0x%02x need to be erased and unprotected before creating a Toradex config block\n",
 525                        CONFIG_TDX_CFG_BLOCK_OFFSET);
 526                 goto out;
 527 #else
 528                 if (!force_overwrite) {
 529                         char message[CONFIG_SYS_CBSIZE];
 530
 531                         sprintf(message,
 532                                 "A valid Toradex config block is present, still recreate? [y/N] ");
 533
 534                         if (!cli_readline(message))
 535                                 goto out;
 536
 537                         if (console_buffer[0] != 'y' &&
 538                             console_buffer[0] != 'Y')
 539                                 goto out;
 540                 }
 541 #endif
 542         }
 543
 544         /* Parse new Toradex config block data... */
 545         if (argc < 3 || (force_overwrite && argc < 4)) {
 546                 err = get_cfgblock_interactive();
 547         } else {
 548                 if (force_overwrite)
 549                         err = get_cfgblock_barcode(argv[3]);
 550                 else
 551                         err = get_cfgblock_barcode(argv[2]);
 552         }
 553         if (err) {
 554                 ret = CMD_RET_FAILURE;
 555                 goto out;
 556         }
 557
 558         /* Convert serial number to MAC address (the storage format) */
 559         tdx_eth_addr.oui = htonl(0x00142dUL << 8);
 560         tdx_eth_addr.nic = htonl(tdx_serial << 8);
 561
 562         /* Valid Tag */
 563         tag = (struct toradex_tag *)config_block;
 564         tag->id = TAG_VALID;
 565         tag->flags = TAG_FLAG_VALID;
 566         tag->len = 0;
 567         offset += 4;
 568
 569         /* Product Tag */
 570         tag = (struct toradex_tag *)(config_block + offset);
 571         tag->id = TAG_HW;
 572         tag->flags = TAG_FLAG_VALID;
 573         tag->len = 2;
 574         offset += 4;
 575
 576         memcpy(config_block + offset, &tdx_hw_tag, 8);
 577         offset += 8;
 578
 579         /* MAC Tag */
 580         tag = (struct toradex_tag *)(config_block + offset);
 581         tag->id = TAG_MAC;
 582         tag->flags = TAG_FLAG_VALID;
 583         tag->len = 2;
 584         offset += 4;
 585
 586         memcpy(config_block + offset, &tdx_eth_addr, 6);
 587         offset += 6;
 588         memset(config_block + offset, 0, 32 - offset);
 589
 590 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
 591         err = tdx_cfg_block_mmc_storage(config_block, 1);
 592 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 593         err = write_tdx_cfg_block_to_nand(config_block);
 594 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 595         err = write_tdx_cfg_block_to_nor(config_block);
 596 #else
 597         err = -EINVAL;
 598 #endif
 599         if (err) {
 600                 printf("Failed to write Toradex config block: %d\n", ret);
 601                 ret = CMD_RET_FAILURE;
 602                 goto out;
 603         }
 604
 605         printf("Toradex config block successfully written\n");
 606
 607 out:
 608         free(config_block);
 609         return ret;
 610 }
 611
 612 static int do_cfgblock(cmd_tbl_t *cmdtp, int flag, int argc,
 613                        char * const argv[])
 614 {
 615         int ret;
 616
 617         if (argc < 2)
 618                 return CMD_RET_USAGE;
 619
 620         if (!strcmp(argv[1], "create")) {
 621                 return do_cfgblock_create(cmdtp, flag, argc, argv);
 622         } else if (!strcmp(argv[1], "reload")) {
 623                 ret = read_tdx_cfg_block();
 624                 if (ret) {
 625                         printf("Failed to reload Toradex config block: %d\n",
 626                                ret);
 627                         return CMD_RET_FAILURE;
 628                 }
 629                 return CMD_RET_SUCCESS;
 630         }
 631
 632         return CMD_RET_USAGE;
 633 }
 634
 635 U_BOOT_CMD(cfgblock, 4, 0, do_cfgblock,
 636            "Toradex config block handling commands",
 637            "create [-y] [barcode] - (Re-)create Toradex config block\n"
 638            "cfgblock reload - Reload Toradex config block from flash"
 639 );