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_COLIBRI_IMX6) || \
  11         defined(CONFIG_TARGET_COLIBRI_IMX8QXP)
  12 #include <asm/arch/sys_proto.h>
  13 #else
  14 #define is_cpu_type(cpu) (0)
  15 #endif
  16 #if defined(CONFIG_CPU_PXA27X)
  17 #include <asm/arch-pxa/pxa.h>
  18 #else
  19 #define cpu_is_pxa27x(cpu) (0)
  20 #endif
  21 #include <cli.h>
  22 #include <console.h>
  23 #include <flash.h>
  24 #include <malloc.h>
  25 #include <mmc.h>
  26 #include <nand.h>
  27 #include <asm/mach-types.h>
  28
  29 DECLARE_GLOBAL_DATA_PTR;
  30
  31 #define TAG_VALID       0xcf01
  32 #define TAG_MAC         0x0000
  33 #define TAG_HW          0x0008
  34 #define TAG_INVALID     0xffff
  35
  36 #define TAG_FLAG_VALID  0x1
  37
  38 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
  39 #define TDX_CFG_BLOCK_MAX_SIZE 512
  40 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
  41 #define TDX_CFG_BLOCK_MAX_SIZE 64
  42 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
  43 #define TDX_CFG_BLOCK_MAX_SIZE 64
  44 #else
  45 #error Toradex config block location not set
  46 #endif
  47
  48 struct toradex_tag {
  49         u32 len:14;
  50         u32 flags:2;
  51         u32 id:16;
  52 };
  53
  54 bool valid_cfgblock;
  55 struct toradex_hw tdx_hw_tag;
  56 struct toradex_eth_addr tdx_eth_addr;
  57 u32 tdx_serial;
  58
  59 const char * const toradex_modules[] = {
  60          [0] = "UNKNOWN MODULE",
  61          [1] = "Colibri PXA270 312MHz",
  62          [2] = "Colibri PXA270 520MHz",
  63          [3] = "Colibri PXA320 806MHz",
  64          [4] = "Colibri PXA300 208MHz",
  65          [5] = "Colibri PXA310 624MHz",
  66          [6] = "Colibri PXA320 806MHz IT",
  67          [7] = "Colibri PXA300 208MHz XT",
  68          [8] = "Colibri PXA270 312MHz",
  69          [9] = "Colibri PXA270 520MHz",
  70         [10] = "Colibri VF50 128MB", /* not currently on sale */
  71         [11] = "Colibri VF61 256MB",
  72         [12] = "Colibri VF61 256MB IT",
  73         [13] = "Colibri VF50 128MB IT",
  74         [14] = "Colibri iMX6 Solo 256MB",
  75         [15] = "Colibri iMX6 DualLite 512MB",
  76         [16] = "Colibri iMX6 Solo 256MB IT",
  77         [17] = "Colibri iMX6 DualLite 512MB IT",
  78         [18] = "UNKNOWN MODULE",
  79         [19] = "UNKNOWN MODULE",
  80         [20] = "Colibri T20 256MB",
  81         [21] = "Colibri T20 512MB",
  82         [22] = "Colibri T20 512MB IT",
  83         [23] = "Colibri T30 1GB",
  84         [24] = "Colibri T20 256MB IT",
  85         [25] = "Apalis T30 2GB",
  86         [26] = "Apalis T30 1GB",
  87         [27] = "Apalis iMX6 Quad 1GB",
  88         [28] = "Apalis iMX6 Quad 2GB IT",
  89         [29] = "Apalis iMX6 Dual 512MB",
  90         [30] = "Colibri T30 1GB IT",
  91         [31] = "Apalis T30 1GB IT",
  92         [32] = "Colibri iMX7 Solo 256MB",
  93         [33] = "Colibri iMX7 Dual 512MB",
  94         [34] = "Apalis TK1 2GB",
  95         [35] = "Apalis iMX6 Dual 1GB IT",
  96         [36] = "Colibri iMX6ULL 256MB",
  97         [37] = "Apalis iMX8 QuadMax 4GB Wi-Fi / BT IT",
  98         [38] = "Colibri iMX8 QuadXPlus 2GB Wi-Fi / BT IT",
  99         [39] = "Colibri iMX7 Dual 1GB (eMMC)",
 100         [40] = "Colibri iMX6ULL 512MB Wi-Fi / BT IT",
 101         [41] = "Colibri iMX7 Dual 512MB EPDC",
 102         [42] = "Apalis TK1 4GB",
 103         [43] = "Colibri T20 512MB IT SETEK",
 104         [44] = "Colibri iMX6ULL 512MB IT",
 105         [45] = "Colibri iMX6ULL 512MB Wi-Fi / Bluetooth",
 106         [46] = "Apalis iMX8 QuadXPlus 2GB Wi-Fi / BT IT",
 107         [47] = "Apalis iMX8 QuadMax 4GB IT",
 108         [48] = "Apalis iMX8 QuadPlus 2GB Wi-Fi / BT",
 109         [49] = "Apalis iMX8 QuadPlus 2GB",
 110         [50] = "Colibri iMX8 QuadXPlus 2GB IT",
 111         [51] = "Colibri iMX8 DualX 1GB Wi-Fi / Bluetooth",
 112         [52] = "Colibri iMX8 DualX 1GB",
 113 };
 114
 115 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC
 116 static int tdx_cfg_block_mmc_storage(u8 *config_block, int write)
 117 {
 118         struct mmc *mmc;
 119         int dev = CONFIG_TDX_CFG_BLOCK_DEV;
 120         int offset = CONFIG_TDX_CFG_BLOCK_OFFSET;
 121         uint part = CONFIG_TDX_CFG_BLOCK_PART;
 122         uint blk_start;
 123         int ret = 0;
 124
 125         /* Read production parameter config block from eMMC */
 126         mmc = find_mmc_device(dev);
 127         if (!mmc) {
 128                 puts("No MMC card found\n");
 129                 ret = -ENODEV;
 130                 goto out;
 131         }
 132         if (part != mmc_get_blk_desc(mmc)->hwpart) {
 133                 if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) {
 134                         puts("MMC partition switch failed\n");
 135                         ret = -ENODEV;
 136                         goto out;
 137                 }
 138         }
 139         if (offset < 0)
 140                 offset += mmc->capacity;
 141         blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len;
 142
 143         if (!write) {
 144                 /* Careful reads a whole block of 512 bytes into config_block */
 145                 if (blk_dread(mmc_get_blk_desc(mmc), blk_start, 1,
 146                               (unsigned char *)config_block) != 1) {
 147                         ret = -EIO;
 148                         goto out;
 149                 }
 150         } else {
 151                 /* Just writing one 512 byte block */
 152                 if (blk_dwrite(mmc_get_blk_desc(mmc), blk_start, 1,
 153                                (unsigned char *)config_block) != 1) {
 154                         ret = -EIO;
 155                         goto out;
 156                 }
 157         }
 158
 159 out:
 160         /* Switch back to regular eMMC user partition */
 161         blk_select_hwpart_devnum(IF_TYPE_MMC, 0, 0);
 162
 163         return ret;
 164 }
 165 #endif
 166
 167 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NAND
 168 static int read_tdx_cfg_block_from_nand(unsigned char *config_block)
 169 {
 170         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 171         struct mtd_info *mtd = get_nand_dev_by_index(0);
 172
 173         if (!mtd)
 174                 return -ENODEV;
 175
 176         /* Read production parameter config block from NAND page */
 177         return nand_read_skip_bad(mtd, CONFIG_TDX_CFG_BLOCK_OFFSET,
 178                                   &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
 179                                   config_block);
 180 }
 181
 182 static int write_tdx_cfg_block_to_nand(unsigned char *config_block)
 183 {
 184         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 185
 186         /* Write production parameter config block to NAND page */
 187         return nand_write_skip_bad(get_nand_dev_by_index(0),
 188                                    CONFIG_TDX_CFG_BLOCK_OFFSET,
 189                                    &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
 190                                    config_block, WITH_WR_VERIFY);
 191 }
 192 #endif
 193
 194 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NOR
 195 static int read_tdx_cfg_block_from_nor(unsigned char *config_block)
 196 {
 197         /* Read production parameter config block from NOR flash */
 198         memcpy(config_block, (void *)CONFIG_TDX_CFG_BLOCK_OFFSET,
 199                TDX_CFG_BLOCK_MAX_SIZE);
 200         return 0;
 201 }
 202
 203 static int write_tdx_cfg_block_to_nor(unsigned char *config_block)
 204 {
 205         /* Write production parameter config block to NOR flash */
 206         return flash_write((void *)config_block, CONFIG_TDX_CFG_BLOCK_OFFSET,
 207                            TDX_CFG_BLOCK_MAX_SIZE);
 208 }
 209 #endif
 210
 211 int read_tdx_cfg_block(void)
 212 {
 213         int ret = 0;
 214         u8 *config_block = NULL;
 215         struct toradex_tag *tag;
 216         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 217         int offset;
 218
 219         /* Allocate RAM area for config block */
 220         config_block = memalign(ARCH_DMA_MINALIGN, size);
 221         if (!config_block) {
 222                 printf("Not enough malloc space available!\n");
 223                 return -ENOMEM;
 224         }
 225
 226         memset(config_block, 0, size);
 227
 228 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
 229         ret = tdx_cfg_block_mmc_storage(config_block, 0);
 230 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 231         ret = read_tdx_cfg_block_from_nand(config_block);
 232 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 233         ret = read_tdx_cfg_block_from_nor(config_block);
 234 #else
 235         ret = -EINVAL;
 236 #endif
 237         if (ret)
 238                 goto out;
 239
 240         /* Expect a valid tag first */
 241         tag = (struct toradex_tag *)config_block;
 242         if (tag->flags != TAG_FLAG_VALID || tag->id != TAG_VALID) {
 243                 valid_cfgblock = false;
 244                 ret = -EINVAL;
 245                 goto out;
 246         }
 247         valid_cfgblock = true;
 248         offset = 4;
 249
 250         while (offset < TDX_CFG_BLOCK_MAX_SIZE) {
 251                 tag = (struct toradex_tag *)(config_block + offset);
 252                 offset += 4;
 253                 if (tag->id == TAG_INVALID)
 254                         break;
 255
 256                 if (tag->flags == TAG_FLAG_VALID) {
 257                         switch (tag->id) {
 258                         case TAG_MAC:
 259                                 memcpy(&tdx_eth_addr, config_block + offset,
 260                                        6);
 261
 262                                 /* NIC part of MAC address is serial number */
 263                                 tdx_serial = ntohl(tdx_eth_addr.nic) >> 8;
 264                                 break;
 265                         case TAG_HW:
 266                                 memcpy(&tdx_hw_tag, config_block + offset, 8);
 267                                 break;
 268                         }
 269                 }
 270
 271                 /* Get to next tag according to current tags length */
 272                 offset += tag->len * 4;
 273         }
 274
 275         /* Cap product id to avoid issues with a yet unknown one */
 276         if (tdx_hw_tag.prodid >= (sizeof(toradex_modules) /
 277                                   sizeof(toradex_modules[0])))
 278                 tdx_hw_tag.prodid = 0;
 279
 280 out:
 281         free(config_block);
 282         return ret;
 283 }
 284
 285 static int get_cfgblock_interactive(void)
 286 {
 287         char message[CONFIG_SYS_CBSIZE];
 288         char *soc;
 289         char it = 'n';
 290         int len;
 291
 292         /* Unknown module by default */
 293         tdx_hw_tag.prodid = 0;
 294
 295         if (cpu_is_pxa27x())
 296                 sprintf(message, "Is the module the 312 MHz version? [y/N] ");
 297         else
 298                 sprintf(message, "Is the module an IT version? [y/N] ");
 299
 300         len = cli_readline(message);
 301         it = console_buffer[0];
 302
 303         soc = env_get("soc");
 304         if (!strcmp("mx6", soc)) {
 305 #ifdef CONFIG_TARGET_APALIS_IMX6
 306                 if (it == 'y' || it == 'Y') {
 307                         if (is_cpu_type(MXC_CPU_MX6Q))
 308                                 tdx_hw_tag.prodid = APALIS_IMX6Q_IT;
 309                         else
 310                                 tdx_hw_tag.prodid = APALIS_IMX6D_IT;
 311                 } else {
 312                         if (is_cpu_type(MXC_CPU_MX6Q))
 313                                 tdx_hw_tag.prodid = APALIS_IMX6Q;
 314                         else
 315                                 tdx_hw_tag.prodid = APALIS_IMX6D;
 316                 }
 317 #elif CONFIG_TARGET_COLIBRI_IMX6
 318                 if (it == 'y' || it == 'Y') {
 319                         if (is_cpu_type(MXC_CPU_MX6DL))
 320                                 tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT;
 321                         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 322                                 tdx_hw_tag.prodid = COLIBRI_IMX6S_IT;
 323                 } else {
 324                         if (is_cpu_type(MXC_CPU_MX6DL))
 325                                 tdx_hw_tag.prodid = COLIBRI_IMX6DL;
 326                         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 327                                 tdx_hw_tag.prodid = COLIBRI_IMX6S;
 328                 }
 329 #elif CONFIG_TARGET_COLIBRI_IMX6ULL
 330                 char wb = 'n';
 331
 332                 sprintf(message, "Does the module have Wi-Fi / Bluetooth? " \
 333                                  "[y/N] ");
 334                 len = cli_readline(message);
 335                 wb = console_buffer[0];
 336                 if (it == 'y' || it == 'Y') {
 337                         if (wb == 'y' || wb == 'Y')
 338                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT_IT;
 339                         else
 340                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_IT;
 341                 } else {
 342                         if (wb == 'y' || wb == 'Y')
 343                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT;
 344                         else
 345                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL;
 346                 }
 347 #endif
 348         } else if (!strcmp("imx7d", soc))
 349                 tdx_hw_tag.prodid = COLIBRI_IMX7D;
 350         else if (!strcmp("imx7s", soc))
 351                 tdx_hw_tag.prodid = COLIBRI_IMX7S;
 352         else if (is_cpu_type(MXC_CPU_IMX8QXP))
 353                 tdx_hw_tag.prodid = COLIBRI_IMX8QXP_WIFI_BT_IT;
 354         else if (!strcmp("tegra20", soc)) {
 355                 if (it == 'y' || it == 'Y')
 356                         if (gd->ram_size == 0x10000000)
 357                                 tdx_hw_tag.prodid = COLIBRI_T20_256MB_IT;
 358                         else
 359                                 tdx_hw_tag.prodid = COLIBRI_T20_512MB_IT;
 360                 else
 361                         if (gd->ram_size == 0x10000000)
 362                                 tdx_hw_tag.prodid = COLIBRI_T20_256MB;
 363                         else
 364                                 tdx_hw_tag.prodid = COLIBRI_T20_512MB;
 365         } else if (cpu_is_pxa27x()) {
 366                 if (it == 'y' || it == 'Y')
 367                         tdx_hw_tag.prodid = COLIBRI_PXA270_312MHZ;
 368                 else
 369                         tdx_hw_tag.prodid = COLIBRI_PXA270_520MHZ;
 370         }
 371 #ifdef CONFIG_MACH_TYPE
 372         else if (!strcmp("tegra30", soc)) {
 373                 if (CONFIG_MACH_TYPE == MACH_TYPE_APALIS_T30) {
 374                         if (it == 'y' || it == 'Y')
 375                                 tdx_hw_tag.prodid = APALIS_T30_IT;
 376                         else
 377                                 if (gd->ram_size == 0x40000000)
 378                                         tdx_hw_tag.prodid = APALIS_T30_1GB;
 379                                 else
 380                                         tdx_hw_tag.prodid = APALIS_T30_2GB;
 381                 } else {
 382                         if (it == 'y' || it == 'Y')
 383                                 tdx_hw_tag.prodid = COLIBRI_T30_IT;
 384                         else
 385                                 tdx_hw_tag.prodid = COLIBRI_T30;
 386                 }
 387         }
 388 #endif /* CONFIG_MACH_TYPE */
 389         else if (!strcmp("tegra124", soc)) {
 390                 tdx_hw_tag.prodid = APALIS_TK1_2GB;
 391         } else if (!strcmp("vf500", soc)) {
 392                 if (it == 'y' || it == 'Y')
 393                         tdx_hw_tag.prodid = COLIBRI_VF50_IT;
 394                 else
 395                         tdx_hw_tag.prodid = COLIBRI_VF50;
 396         } else if (!strcmp("vf610", soc)) {
 397                 if (it == 'y' || it == 'Y')
 398                         tdx_hw_tag.prodid = COLIBRI_VF61_IT;
 399                 else
 400                         tdx_hw_tag.prodid = COLIBRI_VF61;
 401         }
 402
 403         if (!tdx_hw_tag.prodid) {
 404                 printf("Module type not detectable due to unknown SoC\n");
 405                 return -1;
 406         }
 407
 408         while (len < 4) {
 409                 sprintf(message, "Enter the module version (e.g. V1.1B): V");
 410                 len = cli_readline(message);
 411         }
 412
 413         tdx_hw_tag.ver_major = console_buffer[0] - '0';
 414         tdx_hw_tag.ver_minor = console_buffer[2] - '0';
 415         tdx_hw_tag.ver_assembly = console_buffer[3] - 'A';
 416
 417         if (cpu_is_pxa27x() && tdx_hw_tag.ver_major == 1)
 418                 tdx_hw_tag.prodid -= (COLIBRI_PXA270_312MHZ -
 419                                        COLIBRI_PXA270_V1_312MHZ);
 420
 421         while (len < 8) {
 422                 sprintf(message, "Enter module serial number: ");
 423                 len = cli_readline(message);
 424         }
 425
 426         tdx_serial = simple_strtoul(console_buffer, NULL, 10);
 427
 428         return 0;
 429 }
 430
 431 static int get_cfgblock_barcode(char *barcode)
 432 {
 433         if (strlen(barcode) < 16) {
 434                 printf("Argument too short, barcode is 16 chars long\n");
 435                 return -1;
 436         }
 437
 438         /* Get hardware information from the first 8 digits */
 439         tdx_hw_tag.ver_major = barcode[4] - '0';
 440         tdx_hw_tag.ver_minor = barcode[5] - '0';
 441         tdx_hw_tag.ver_assembly = barcode[7] - '0';
 442
 443         barcode[4] = '\0';
 444         tdx_hw_tag.prodid = simple_strtoul(barcode, NULL, 10);
 445
 446         /* Parse second part of the barcode (serial number */
 447         barcode += 8;
 448         tdx_serial = simple_strtoul(barcode, NULL, 10);
 449
 450         return 0;
 451 }
 452
 453 static int do_cfgblock_create(cmd_tbl_t *cmdtp, int flag, int argc,
 454                               char * const argv[])
 455 {
 456         u8 *config_block;
 457         struct toradex_tag *tag;
 458         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 459         int offset = 0;
 460         int ret = CMD_RET_SUCCESS;
 461         int err;
 462         int force_overwrite = 0;
 463
 464         /* Allocate RAM area for config block */
 465         config_block = memalign(ARCH_DMA_MINALIGN, size);
 466         if (!config_block) {
 467                 printf("Not enough malloc space available!\n");
 468                 return CMD_RET_FAILURE;
 469         }
 470
 471         memset(config_block, 0xff, size);
 472
 473         if (argc >= 3) {
 474                 if (argv[2][0] == '-' && argv[2][1] == 'y')
 475                         force_overwrite = 1;
 476         }
 477
 478         read_tdx_cfg_block();
 479         if (valid_cfgblock) {
 480 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 481                 /*
 482                  * On NAND devices, recreation is only allowed if the page is
 483                  * empty (config block invalid...)
 484                  */
 485                 printf("NAND erase block %d need to be erased before creating" \
 486                        " a Toradex config block\n",
 487                        CONFIG_TDX_CFG_BLOCK_OFFSET /
 488                        get_nand_dev_by_index(0)->erasesize);
 489                 goto out;
 490 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 491                 /*
 492                  * On NOR devices, recreation is only allowed if the sector is
 493                  * empty and write protection is off (config block invalid...)
 494                  */
 495                 printf("NOR sector at offset 0x%02x need to be erased and " \
 496                        "unprotected before creating a Toradex config block\n",
 497                        CONFIG_TDX_CFG_BLOCK_OFFSET);
 498                 goto out;
 499 #else
 500                 if (!force_overwrite) {
 501                         char message[CONFIG_SYS_CBSIZE];
 502
 503                         sprintf(message,
 504                                 "A valid Toradex config block is present, still recreate? [y/N] ");
 505
 506                         if (!cli_readline(message))
 507                                 goto out;
 508
 509                         if (console_buffer[0] != 'y' &&
 510                             console_buffer[0] != 'Y')
 511                                 goto out;
 512                 }
 513 #endif
 514         }
 515
 516         /* Parse new Toradex config block data... */
 517         if (argc < 3 || (force_overwrite && argc < 4)) {
 518                 err = get_cfgblock_interactive();
 519         } else {
 520                 if (force_overwrite)
 521                         err = get_cfgblock_barcode(argv[3]);
 522                 else
 523                         err = get_cfgblock_barcode(argv[2]);
 524         }
 525         if (err) {
 526                 ret = CMD_RET_FAILURE;
 527                 goto out;
 528         }
 529
 530         /* Convert serial number to MAC address (the storage format) */
 531         tdx_eth_addr.oui = htonl(0x00142dUL << 8);
 532         tdx_eth_addr.nic = htonl(tdx_serial << 8);
 533
 534         /* Valid Tag */
 535         tag = (struct toradex_tag *)config_block;
 536         tag->id = TAG_VALID;
 537         tag->flags = TAG_FLAG_VALID;
 538         tag->len = 0;
 539         offset += 4;
 540
 541         /* Product Tag */
 542         tag = (struct toradex_tag *)(config_block + offset);
 543         tag->id = TAG_HW;
 544         tag->flags = TAG_FLAG_VALID;
 545         tag->len = 2;
 546         offset += 4;
 547
 548         memcpy(config_block + offset, &tdx_hw_tag, 8);
 549         offset += 8;
 550
 551         /* MAC Tag */
 552         tag = (struct toradex_tag *)(config_block + offset);
 553         tag->id = TAG_MAC;
 554         tag->flags = TAG_FLAG_VALID;
 555         tag->len = 2;
 556         offset += 4;
 557
 558         memcpy(config_block + offset, &tdx_eth_addr, 6);
 559         offset += 6;
 560         memset(config_block + offset, 0, 32 - offset);
 561
 562 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
 563         err = tdx_cfg_block_mmc_storage(config_block, 1);
 564 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 565         err = write_tdx_cfg_block_to_nand(config_block);
 566 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 567         err = write_tdx_cfg_block_to_nor(config_block);
 568 #else
 569         err = -EINVAL;
 570 #endif
 571         if (err) {
 572                 printf("Failed to write Toradex config block: %d\n", ret);
 573                 ret = CMD_RET_FAILURE;
 574                 goto out;
 575         }
 576
 577         printf("Toradex config block successfully written\n");
 578
 579 out:
 580         free(config_block);
 581         return ret;
 582 }
 583
 584 static int do_cfgblock(cmd_tbl_t *cmdtp, int flag, int argc,
 585                        char * const argv[])
 586 {
 587         int ret;
 588
 589         if (argc < 2)
 590                 return CMD_RET_USAGE;
 591
 592         if (!strcmp(argv[1], "create")) {
 593                 return do_cfgblock_create(cmdtp, flag, argc, argv);
 594         } else if (!strcmp(argv[1], "reload")) {
 595                 ret = read_tdx_cfg_block();
 596                 if (ret) {
 597                         printf("Failed to reload Toradex config block: %d\n",
 598                                ret);
 599                         return CMD_RET_FAILURE;
 600                 }
 601                 return CMD_RET_SUCCESS;
 602         }
 603
 604         return CMD_RET_USAGE;
 605 }
 606
 607 U_BOOT_CMD(
 608         cfgblock, 4, 0, do_cfgblock,
 609         "Toradex config block handling commands",
 610         "create [-y] [barcode] - (Re-)create Toradex config block\n"
 611         "cfgblock reload - Reload Toradex config block from flash"
 612 );