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

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2016-2020 Toradex
   4  */
   5
   6 #include <common.h>
   7 #include "tdx-cfg-block.h"
   8 #include <asm/cache.h>
   9
  10 #if defined(CONFIG_TARGET_APALIS_IMX6) || \
  11         defined(CONFIG_TARGET_APALIS_IMX8) || \
  12         defined(CONFIG_TARGET_APALIS_IMX8X) || \
  13         defined(CONFIG_TARGET_COLIBRI_IMX6) || \
  14         defined(CONFIG_TARGET_COLIBRI_IMX8X) || \
  15         defined(CONFIG_TARGET_VERDIN_IMX8MM) || \
  16         defined(CONFIG_TARGET_VERDIN_IMX8MN)
  17 #include <asm/arch/sys_proto.h>
  18 #else
  19 #define is_cpu_type(cpu) (0)
  20 #endif
  21 #if defined(CONFIG_CPU_PXA27X)
  22 #include <asm/arch-pxa/pxa.h>
  23 #else
  24 #define cpu_is_pxa27x(cpu) (0)
  25 #endif
  26 #include <cli.h>
  27 #include <console.h>
  28 #include <env.h>
  29 #include <flash.h>
  30 #include <malloc.h>
  31 #include <mmc.h>
  32 #include <nand.h>
  33 #include <asm/mach-types.h>
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 #define TAG_VALID       0xcf01
  38 #define TAG_MAC         0x0000
  39 #define TAG_HW          0x0008
  40 #define TAG_INVALID     0xffff
  41
  42 #define TAG_FLAG_VALID  0x1
  43
  44 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
  45 #define TDX_CFG_BLOCK_MAX_SIZE 512
  46 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
  47 #define TDX_CFG_BLOCK_MAX_SIZE 64
  48 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
  49 #define TDX_CFG_BLOCK_MAX_SIZE 64
  50 #else
  51 #error Toradex config block location not set
  52 #endif
  53
  54 struct toradex_tag {
  55         u32 len:14;
  56         u32 flags:2;
  57         u32 id:16;
  58 };
  59
  60 bool valid_cfgblock;
  61 struct toradex_hw tdx_hw_tag;
  62 struct toradex_eth_addr tdx_eth_addr;
  63 u32 tdx_serial;
  64
  65 const char * const toradex_modules[] = {
  66          [0] = "UNKNOWN MODULE",
  67          [1] = "Colibri PXA270 312MHz",
  68          [2] = "Colibri PXA270 520MHz",
  69          [3] = "Colibri PXA320 806MHz",
  70          [4] = "Colibri PXA300 208MHz",
  71          [5] = "Colibri PXA310 624MHz",
  72          [6] = "Colibri PXA320 806MHz IT",
  73          [7] = "Colibri PXA300 208MHz XT",
  74          [8] = "Colibri PXA270 312MHz",
  75          [9] = "Colibri PXA270 520MHz",
  76         [10] = "Colibri VF50 128MB", /* not currently on sale */
  77         [11] = "Colibri VF61 256MB",
  78         [12] = "Colibri VF61 256MB IT",
  79         [13] = "Colibri VF50 128MB IT",
  80         [14] = "Colibri iMX6 Solo 256MB",
  81         [15] = "Colibri iMX6 DualLite 512MB",
  82         [16] = "Colibri iMX6 Solo 256MB IT",
  83         [17] = "Colibri iMX6 DualLite 512MB IT",
  84         [18] = "UNKNOWN MODULE",
  85         [19] = "UNKNOWN MODULE",
  86         [20] = "Colibri T20 256MB",
  87         [21] = "Colibri T20 512MB",
  88         [22] = "Colibri T20 512MB IT",
  89         [23] = "Colibri T30 1GB",
  90         [24] = "Colibri T20 256MB IT",
  91         [25] = "Apalis T30 2GB",
  92         [26] = "Apalis T30 1GB",
  93         [27] = "Apalis iMX6 Quad 1GB",
  94         [28] = "Apalis iMX6 Quad 2GB IT",
  95         [29] = "Apalis iMX6 Dual 512MB",
  96         [30] = "Colibri T30 1GB IT",
  97         [31] = "Apalis T30 1GB IT",
  98         [32] = "Colibri iMX7 Solo 256MB",
  99         [33] = "Colibri iMX7 Dual 512MB",
 100         [34] = "Apalis TK1 2GB",
 101         [35] = "Apalis iMX6 Dual 1GB IT",
 102         [36] = "Colibri iMX6ULL 256MB",
 103         [37] = "Apalis iMX8 QuadMax 4GB Wi-Fi / BT IT",
 104         [38] = "Colibri iMX8 QuadXPlus 2GB Wi-Fi / BT IT",
 105         [39] = "Colibri iMX7 Dual 1GB (eMMC)",
 106         [40] = "Colibri iMX6ULL 512MB Wi-Fi / BT IT",
 107         [41] = "Colibri iMX7 Dual 512MB EPDC",
 108         [42] = "Apalis TK1 4GB",
 109         [43] = "Colibri T20 512MB IT SETEK",
 110         [44] = "Colibri iMX6ULL 512MB IT",
 111         [45] = "Colibri iMX6ULL 512MB Wi-Fi / Bluetooth",
 112         [46] = "Apalis iMX8 QuadXPlus 2GB Wi-Fi / BT IT",
 113         [47] = "Apalis iMX8 QuadMax 4GB IT",
 114         [48] = "Apalis iMX8 QuadPlus 2GB Wi-Fi / BT",
 115         [49] = "Apalis iMX8 QuadPlus 2GB",
 116         [50] = "Colibri iMX8 QuadXPlus 2GB IT",
 117         [51] = "Colibri iMX8 DualX 1GB Wi-Fi / Bluetooth",
 118         [52] = "Colibri iMX8 DualX 1GB",
 119         [53] = "Apalis iMX8 QuadXPlus 2GB ECC IT",
 120         [54] = "Apalis iMX8 DualXPlus 1GB",
 121         [55] = "Verdin iMX8M Mini Quad 2GB Wi-Fi / BT IT",
 122         [56] = "Verdin iMX8M Nano SoloLite 1GB", /* not currently on sale */
 123         [57] = "Verdin iMX8M Mini DualLite 1GB",
 124 };
 125
 126 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC
 127 static int tdx_cfg_block_mmc_storage(u8 *config_block, int write)
 128 {
 129         struct mmc *mmc;
 130         int dev = CONFIG_TDX_CFG_BLOCK_DEV;
 131         int offset = CONFIG_TDX_CFG_BLOCK_OFFSET;
 132         uint part = CONFIG_TDX_CFG_BLOCK_PART;
 133         uint blk_start;
 134         int ret = 0;
 135
 136         /* Read production parameter config block from eMMC */
 137         mmc = find_mmc_device(dev);
 138         if (!mmc) {
 139                 puts("No MMC card found\n");
 140                 ret = -ENODEV;
 141                 goto out;
 142         }
 143         if (mmc_init(mmc)) {
 144                 puts("MMC init failed\n");
 145                 return -EINVAL;
 146         }
 147         if (part != mmc_get_blk_desc(mmc)->hwpart) {
 148                 if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) {
 149                         puts("MMC partition switch failed\n");
 150                         ret = -ENODEV;
 151                         goto out;
 152                 }
 153         }
 154         if (offset < 0)
 155                 offset += mmc->capacity;
 156         blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len;
 157
 158         if (!write) {
 159                 /* Careful reads a whole block of 512 bytes into config_block */
 160                 if (blk_dread(mmc_get_blk_desc(mmc), blk_start, 1,
 161                               (unsigned char *)config_block) != 1) {
 162                         ret = -EIO;
 163                         goto out;
 164                 }
 165         } else {
 166                 /* Just writing one 512 byte block */
 167                 if (blk_dwrite(mmc_get_blk_desc(mmc), blk_start, 1,
 168                                (unsigned char *)config_block) != 1) {
 169                         ret = -EIO;
 170                         goto out;
 171                 }
 172         }
 173
 174 out:
 175         /* Switch back to regular eMMC user partition */
 176         blk_select_hwpart_devnum(IF_TYPE_MMC, 0, 0);
 177
 178         return ret;
 179 }
 180 #endif
 181
 182 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NAND
 183 static int read_tdx_cfg_block_from_nand(unsigned char *config_block)
 184 {
 185         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 186         struct mtd_info *mtd = get_nand_dev_by_index(0);
 187
 188         if (!mtd)
 189                 return -ENODEV;
 190
 191         /* Read production parameter config block from NAND page */
 192         return nand_read_skip_bad(mtd, CONFIG_TDX_CFG_BLOCK_OFFSET,
 193                                   &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
 194                                   config_block);
 195 }
 196
 197 static int write_tdx_cfg_block_to_nand(unsigned char *config_block)
 198 {
 199         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 200
 201         /* Write production parameter config block to NAND page */
 202         return nand_write_skip_bad(get_nand_dev_by_index(0),
 203                                    CONFIG_TDX_CFG_BLOCK_OFFSET,
 204                                    &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
 205                                    config_block, WITH_WR_VERIFY);
 206 }
 207 #endif
 208
 209 #ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NOR
 210 static int read_tdx_cfg_block_from_nor(unsigned char *config_block)
 211 {
 212         /* Read production parameter config block from NOR flash */
 213         memcpy(config_block, (void *)CONFIG_TDX_CFG_BLOCK_OFFSET,
 214                TDX_CFG_BLOCK_MAX_SIZE);
 215         return 0;
 216 }
 217
 218 static int write_tdx_cfg_block_to_nor(unsigned char *config_block)
 219 {
 220         /* Write production parameter config block to NOR flash */
 221         return flash_write((void *)config_block, CONFIG_TDX_CFG_BLOCK_OFFSET,
 222                            TDX_CFG_BLOCK_MAX_SIZE);
 223 }
 224 #endif
 225
 226 int read_tdx_cfg_block(void)
 227 {
 228         int ret = 0;
 229         u8 *config_block = NULL;
 230         struct toradex_tag *tag;
 231         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 232         int offset;
 233
 234         /* Allocate RAM area for config block */
 235         config_block = memalign(ARCH_DMA_MINALIGN, size);
 236         if (!config_block) {
 237                 printf("Not enough malloc space available!\n");
 238                 return -ENOMEM;
 239         }
 240
 241         memset(config_block, 0, size);
 242
 243 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
 244         ret = tdx_cfg_block_mmc_storage(config_block, 0);
 245 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 246         ret = read_tdx_cfg_block_from_nand(config_block);
 247 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 248         ret = read_tdx_cfg_block_from_nor(config_block);
 249 #else
 250         ret = -EINVAL;
 251 #endif
 252         if (ret)
 253                 goto out;
 254
 255         /* Expect a valid tag first */
 256         tag = (struct toradex_tag *)config_block;
 257         if (tag->flags != TAG_FLAG_VALID || tag->id != TAG_VALID) {
 258                 valid_cfgblock = false;
 259                 ret = -EINVAL;
 260                 goto out;
 261         }
 262         valid_cfgblock = true;
 263         offset = 4;
 264
 265         while (offset < TDX_CFG_BLOCK_MAX_SIZE) {
 266                 tag = (struct toradex_tag *)(config_block + offset);
 267                 offset += 4;
 268                 if (tag->id == TAG_INVALID)
 269                         break;
 270
 271                 if (tag->flags == TAG_FLAG_VALID) {
 272                         switch (tag->id) {
 273                         case TAG_MAC:
 274                                 memcpy(&tdx_eth_addr, config_block + offset,
 275                                        6);
 276
 277                                 /* NIC part of MAC address is serial number */
 278                                 tdx_serial = ntohl(tdx_eth_addr.nic) >> 8;
 279                                 break;
 280                         case TAG_HW:
 281                                 memcpy(&tdx_hw_tag, config_block + offset, 8);
 282                                 break;
 283                         }
 284                 }
 285
 286                 /* Get to next tag according to current tags length */
 287                 offset += tag->len * 4;
 288         }
 289
 290         /* Cap product id to avoid issues with a yet unknown one */
 291         if (tdx_hw_tag.prodid >= (sizeof(toradex_modules) /
 292                                   sizeof(toradex_modules[0])))
 293                 tdx_hw_tag.prodid = 0;
 294
 295 out:
 296         free(config_block);
 297         return ret;
 298 }
 299
 300 static int get_cfgblock_interactive(void)
 301 {
 302         char message[CONFIG_SYS_CBSIZE];
 303         char *soc;
 304         char it = 'n';
 305         char wb = 'n';
 306         int len = 0;
 307
 308         /* Unknown module by default */
 309         tdx_hw_tag.prodid = 0;
 310
 311         if (cpu_is_pxa27x())
 312                 sprintf(message, "Is the module the 312 MHz version? [y/N] ");
 313 #if !defined(CONFIG_TARGET_VERDIN_IMX8MM) || !defined(CONFIG_TARGET_VERDIN_IMX8MN)
 314         else
 315                 sprintf(message, "Is the module an IT version? [y/N] ");
 316
 317         len = cli_readline(message);
 318         it = console_buffer[0];
 319 #else
 320         else
 321                 it = 'y';
 322 #endif
 323
 324
 325 #if defined(CONFIG_TARGET_APALIS_IMX8) || \
 326                 defined(CONFIG_TARGET_APALIS_IMX8X) || \
 327                 defined(CONFIG_TARGET_COLIBRI_IMX6ULL) || \
 328                 defined(CONFIG_TARGET_COLIBRI_IMX8X)
 329         sprintf(message, "Does the module have Wi-Fi / Bluetooth? [y/N] ");
 330         len = cli_readline(message);
 331         wb = console_buffer[0];
 332 #endif
 333
 334         soc = env_get("soc");
 335         if (!strcmp("mx6", soc)) {
 336 #ifdef CONFIG_TARGET_APALIS_IMX6
 337                 if (it == 'y' || it == 'Y') {
 338                         if (is_cpu_type(MXC_CPU_MX6Q))
 339                                 tdx_hw_tag.prodid = APALIS_IMX6Q_IT;
 340                         else
 341                                 tdx_hw_tag.prodid = APALIS_IMX6D_IT;
 342                 } else {
 343                         if (is_cpu_type(MXC_CPU_MX6Q))
 344                                 tdx_hw_tag.prodid = APALIS_IMX6Q;
 345                         else
 346                                 tdx_hw_tag.prodid = APALIS_IMX6D;
 347                 }
 348 #elif CONFIG_TARGET_COLIBRI_IMX6
 349                 if (it == 'y' || it == 'Y') {
 350                         if (is_cpu_type(MXC_CPU_MX6DL))
 351                                 tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT;
 352                         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 353                                 tdx_hw_tag.prodid = COLIBRI_IMX6S_IT;
 354                 } else {
 355                         if (is_cpu_type(MXC_CPU_MX6DL))
 356                                 tdx_hw_tag.prodid = COLIBRI_IMX6DL;
 357                         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 358                                 tdx_hw_tag.prodid = COLIBRI_IMX6S;
 359                 }
 360 #elif CONFIG_TARGET_COLIBRI_IMX6ULL
 361                 if (it == 'y' || it == 'Y') {
 362                         if (wb == 'y' || wb == 'Y')
 363                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT_IT;
 364                         else
 365                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_IT;
 366                 } else {
 367                         if (wb == 'y' || wb == 'Y')
 368                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL_WIFI_BT;
 369                         else
 370                                 tdx_hw_tag.prodid = COLIBRI_IMX6ULL;
 371                 }
 372 #endif
 373         } else if (!strcmp("imx7d", soc))
 374                 tdx_hw_tag.prodid = COLIBRI_IMX7D;
 375         else if (!strcmp("imx7s", soc))
 376                 tdx_hw_tag.prodid = COLIBRI_IMX7S;
 377         else if (is_cpu_type(MXC_CPU_IMX8MM))
 378                 tdx_hw_tag.prodid = VERDIN_IMX8MMQ_WIFI_BT_IT;
 379         else if (is_cpu_type(MXC_CPU_IMX8MMDL))
 380                 tdx_hw_tag.prodid = VERDIN_IMX8MMDL;
 381         else if (is_cpu_type(MXC_CPU_IMX8MN))
 382                 tdx_hw_tag.prodid = VERDIN_IMX8MNSL;
 383         else if (is_cpu_type(MXC_CPU_IMX8QM)) {
 384                 if (it == 'y' || it == 'Y') {
 385                         if (wb == 'y' || wb == 'Y')
 386                                 tdx_hw_tag.prodid = APALIS_IMX8QM_WIFI_BT_IT;
 387                         else
 388                                 tdx_hw_tag.prodid = APALIS_IMX8QM_IT;
 389                 } else {
 390                         if (wb == 'y' || wb == 'Y')
 391                                 tdx_hw_tag.prodid = APALIS_IMX8QP_WIFI_BT;
 392                         else
 393                                 tdx_hw_tag.prodid = APALIS_IMX8QP;
 394                 }
 395         } else if (is_cpu_type(MXC_CPU_IMX8QXP)) {
 396 #ifdef CONFIG_TARGET_APALIS_IMX8X
 397                 if (it == 'y' || it == 'Y' || wb == 'y' || wb == 'Y') {
 398                                 tdx_hw_tag.prodid = APALIS_IMX8QXP_WIFI_BT_IT;
 399                 } else {
 400                         if (gd->ram_size == 0x40000000)
 401                                 tdx_hw_tag.prodid = APALIS_IMX8DXP;
 402                         else
 403                                 tdx_hw_tag.prodid = APALIS_IMX8QXP;
 404                 }
 405 #elif CONFIG_TARGET_COLIBRI_IMX8X
 406                 if (it == 'y' || it == 'Y') {
 407                         if (wb == 'y' || wb == 'Y')
 408                                 tdx_hw_tag.prodid = COLIBRI_IMX8QXP_WIFI_BT_IT;
 409                         else
 410                                 tdx_hw_tag.prodid = COLIBRI_IMX8QXP_IT;
 411                 } else {
 412                         if (wb == 'y' || wb == 'Y')
 413                                 tdx_hw_tag.prodid = COLIBRI_IMX8DX_WIFI_BT;
 414                         else
 415                                 tdx_hw_tag.prodid = COLIBRI_IMX8DX;
 416                 }
 417 #endif
 418         } else if (!strcmp("tegra20", soc)) {
 419                 if (it == 'y' || it == 'Y')
 420                         if (gd->ram_size == 0x10000000)
 421                                 tdx_hw_tag.prodid = COLIBRI_T20_256MB_IT;
 422                         else
 423                                 tdx_hw_tag.prodid = COLIBRI_T20_512MB_IT;
 424                 else
 425                         if (gd->ram_size == 0x10000000)
 426                                 tdx_hw_tag.prodid = COLIBRI_T20_256MB;
 427                         else
 428                                 tdx_hw_tag.prodid = COLIBRI_T20_512MB;
 429         } else if (cpu_is_pxa27x()) {
 430                 if (it == 'y' || it == 'Y')
 431                         tdx_hw_tag.prodid = COLIBRI_PXA270_312MHZ;
 432                 else
 433                         tdx_hw_tag.prodid = COLIBRI_PXA270_520MHZ;
 434         }
 435 #ifdef CONFIG_MACH_TYPE
 436         else if (!strcmp("tegra30", soc)) {
 437                 if (CONFIG_MACH_TYPE == MACH_TYPE_APALIS_T30) {
 438                         if (it == 'y' || it == 'Y')
 439                                 tdx_hw_tag.prodid = APALIS_T30_IT;
 440                         else
 441                                 if (gd->ram_size == 0x40000000)
 442                                         tdx_hw_tag.prodid = APALIS_T30_1GB;
 443                                 else
 444                                         tdx_hw_tag.prodid = APALIS_T30_2GB;
 445                 } else {
 446                         if (it == 'y' || it == 'Y')
 447                                 tdx_hw_tag.prodid = COLIBRI_T30_IT;
 448                         else
 449                                 tdx_hw_tag.prodid = COLIBRI_T30;
 450                 }
 451         }
 452 #endif /* CONFIG_MACH_TYPE */
 453         else if (!strcmp("tegra124", soc)) {
 454                 tdx_hw_tag.prodid = APALIS_TK1_2GB;
 455         } else if (!strcmp("vf500", soc)) {
 456                 if (it == 'y' || it == 'Y')
 457                         tdx_hw_tag.prodid = COLIBRI_VF50_IT;
 458                 else
 459                         tdx_hw_tag.prodid = COLIBRI_VF50;
 460         } else if (!strcmp("vf610", soc)) {
 461                 if (it == 'y' || it == 'Y')
 462                         tdx_hw_tag.prodid = COLIBRI_VF61_IT;
 463                 else
 464                         tdx_hw_tag.prodid = COLIBRI_VF61;
 465         }
 466
 467         if (!tdx_hw_tag.prodid) {
 468                 printf("Module type not detectable due to unknown SoC\n");
 469                 return -1;
 470         }
 471
 472         while (len < 4) {
 473                 sprintf(message, "Enter the module version (e.g. V1.1B): V");
 474                 len = cli_readline(message);
 475         }
 476
 477         tdx_hw_tag.ver_major = console_buffer[0] - '0';
 478         tdx_hw_tag.ver_minor = console_buffer[2] - '0';
 479         tdx_hw_tag.ver_assembly = console_buffer[3] - 'A';
 480
 481         if (cpu_is_pxa27x() && tdx_hw_tag.ver_major == 1)
 482                 tdx_hw_tag.prodid -= (COLIBRI_PXA270_312MHZ -
 483                                        COLIBRI_PXA270_V1_312MHZ);
 484
 485         while (len < 8) {
 486                 sprintf(message, "Enter module serial number: ");
 487                 len = cli_readline(message);
 488         }
 489
 490         tdx_serial = simple_strtoul(console_buffer, NULL, 10);
 491
 492         return 0;
 493 }
 494
 495 static int get_cfgblock_barcode(char *barcode)
 496 {
 497         if (strlen(barcode) < 16) {
 498                 printf("Argument too short, barcode is 16 chars long\n");
 499                 return -1;
 500         }
 501
 502         /* Get hardware information from the first 8 digits */
 503         tdx_hw_tag.ver_major = barcode[4] - '0';
 504         tdx_hw_tag.ver_minor = barcode[5] - '0';
 505         tdx_hw_tag.ver_assembly = barcode[7] - '0';
 506
 507         barcode[4] = '\0';
 508         tdx_hw_tag.prodid = simple_strtoul(barcode, NULL, 10);
 509
 510         /* Parse second part of the barcode (serial number */
 511         barcode += 8;
 512         tdx_serial = simple_strtoul(barcode, NULL, 10);
 513
 514         return 0;
 515 }
 516
 517 static int do_cfgblock_create(cmd_tbl_t *cmdtp, int flag, int argc,
 518                               char * const argv[])
 519 {
 520         u8 *config_block;
 521         struct toradex_tag *tag;
 522         size_t size = TDX_CFG_BLOCK_MAX_SIZE;
 523         int offset = 0;
 524         int ret = CMD_RET_SUCCESS;
 525         int err;
 526         int force_overwrite = 0;
 527
 528         /* Allocate RAM area for config block */
 529         config_block = memalign(ARCH_DMA_MINALIGN, size);
 530         if (!config_block) {
 531                 printf("Not enough malloc space available!\n");
 532                 return CMD_RET_FAILURE;
 533         }
 534
 535         memset(config_block, 0xff, size);
 536
 537         if (argc >= 3) {
 538                 if (argv[2][0] == '-' && argv[2][1] == 'y')
 539                         force_overwrite = 1;
 540         }
 541
 542         read_tdx_cfg_block();
 543         if (valid_cfgblock) {
 544 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 545                 /*
 546                  * On NAND devices, recreation is only allowed if the page is
 547                  * empty (config block invalid...)
 548                  */
 549                 printf("NAND erase block %d need to be erased before creating a Toradex config block\n",
 550                        CONFIG_TDX_CFG_BLOCK_OFFSET /
 551                        get_nand_dev_by_index(0)->erasesize);
 552                 goto out;
 553 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 554                 /*
 555                  * On NOR devices, recreation is only allowed if the sector is
 556                  * empty and write protection is off (config block invalid...)
 557                  */
 558                 printf("NOR sector at offset 0x%02x need to be erased and unprotected before creating a Toradex config block\n",
 559                        CONFIG_TDX_CFG_BLOCK_OFFSET);
 560                 goto out;
 561 #else
 562                 if (!force_overwrite) {
 563                         char message[CONFIG_SYS_CBSIZE];
 564
 565                         sprintf(message,
 566                                 "A valid Toradex config block is present, still recreate? [y/N] ");
 567
 568                         if (!cli_readline(message))
 569                                 goto out;
 570
 571                         if (console_buffer[0] != 'y' &&
 572                             console_buffer[0] != 'Y')
 573                                 goto out;
 574                 }
 575 #endif
 576         }
 577
 578         /* Parse new Toradex config block data... */
 579         if (argc < 3 || (force_overwrite && argc < 4)) {
 580                 err = get_cfgblock_interactive();
 581         } else {
 582                 if (force_overwrite)
 583                         err = get_cfgblock_barcode(argv[3]);
 584                 else
 585                         err = get_cfgblock_barcode(argv[2]);
 586         }
 587         if (err) {
 588                 ret = CMD_RET_FAILURE;
 589                 goto out;
 590         }
 591
 592         /* Convert serial number to MAC address (the storage format) */
 593         tdx_eth_addr.oui = htonl(0x00142dUL << 8);
 594         tdx_eth_addr.nic = htonl(tdx_serial << 8);
 595
 596         /* Valid Tag */
 597         tag = (struct toradex_tag *)config_block;
 598         tag->id = TAG_VALID;
 599         tag->flags = TAG_FLAG_VALID;
 600         tag->len = 0;
 601         offset += 4;
 602
 603         /* Product Tag */
 604         tag = (struct toradex_tag *)(config_block + offset);
 605         tag->id = TAG_HW;
 606         tag->flags = TAG_FLAG_VALID;
 607         tag->len = 2;
 608         offset += 4;
 609
 610         memcpy(config_block + offset, &tdx_hw_tag, 8);
 611         offset += 8;
 612
 613         /* MAC Tag */
 614         tag = (struct toradex_tag *)(config_block + offset);
 615         tag->id = TAG_MAC;
 616         tag->flags = TAG_FLAG_VALID;
 617         tag->len = 2;
 618         offset += 4;
 619
 620         memcpy(config_block + offset, &tdx_eth_addr, 6);
 621         offset += 6;
 622         memset(config_block + offset, 0, 32 - offset);
 623
 624 #if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
 625         err = tdx_cfg_block_mmc_storage(config_block, 1);
 626 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
 627         err = write_tdx_cfg_block_to_nand(config_block);
 628 #elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
 629         err = write_tdx_cfg_block_to_nor(config_block);
 630 #else
 631         err = -EINVAL;
 632 #endif
 633         if (err) {
 634                 printf("Failed to write Toradex config block: %d\n", ret);
 635                 ret = CMD_RET_FAILURE;
 636                 goto out;
 637         }
 638
 639         printf("Toradex config block successfully written\n");
 640
 641 out:
 642         free(config_block);
 643         return ret;
 644 }
 645
 646 static int do_cfgblock(cmd_tbl_t *cmdtp, int flag, int argc,
 647                        char * const argv[])
 648 {
 649         int ret;
 650
 651         if (argc < 2)
 652                 return CMD_RET_USAGE;
 653
 654         if (!strcmp(argv[1], "create")) {
 655                 return do_cfgblock_create(cmdtp, flag, argc, argv);
 656         } else if (!strcmp(argv[1], "reload")) {
 657                 ret = read_tdx_cfg_block();
 658                 if (ret) {
 659                         printf("Failed to reload Toradex config block: %d\n",
 660                                ret);
 661                         return CMD_RET_FAILURE;
 662                 }
 663                 return CMD_RET_SUCCESS;
 664         }
 665
 666         return CMD_RET_USAGE;
 667 }
 668
 669 U_BOOT_CMD(cfgblock, 4, 0, do_cfgblock,
 670            "Toradex config block handling commands",
 671            "create [-y] [barcode] - (Re-)create Toradex config block\n"
 672            "cfgblock reload - Reload Toradex config block from flash"
 673 );