common/cmd_bootce.c

   1 /*
   2  * Copyright (C) 2012 Lothar Waßmann <LW@KARO-electronics.de>
   3  * based on: code from RedBoot (C) Uwe Steinkohl <US@KARO-electronics.de>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <command.h>
  26 #include <net.h>
  27 #include <wince.h>
  28 #include <nand.h>
  29 #include <malloc.h>
  30 #include <asm/errno.h>
  31 #include <jffs2/load_kernel.h>
  32
  33 DECLARE_GLOBAL_DATA_PTR;
  34
  35 #define WINCE_VRAM_BASE         0x80000000
  36 #define CE_FIX_ADDRESS(a)       ((void *)((a) - WINCE_VRAM_BASE + CONFIG_SYS_SDRAM_BASE))
  37
  38 #ifndef INT_MAX
  39 #define INT_MAX                 ((int)(~0U >> 1))
  40 #endif
  41
  42 /* Bin image parse states */
  43 #define CE_PS_RTI_ADDR          0
  44 #define CE_PS_RTI_LEN           1
  45 #define CE_PS_E_ADDR            2
  46 #define CE_PS_E_LEN             3
  47 #define CE_PS_E_CHKSUM          4
  48 #define CE_PS_E_DATA            5
  49
  50 #define CE_MIN(a, b)            (((a) < (b)) ? (a) : (b))
  51 #define CE_MAX(a, b)            (((a) > (b)) ? (a) : (b))
  52
  53 static ce_bin __attribute__ ((aligned (32))) g_bin;
  54 static ce_net __attribute__ ((aligned (32))) g_net;
  55 static struct in_addr server_ip;
  56
  57 static void ce_init_bin(ce_bin *bin, unsigned char *dataBuffer)
  58 {
  59         memset(bin, 0, sizeof(*bin));
  60
  61         bin->data = dataBuffer;
  62         bin->parseState = CE_PS_RTI_ADDR;
  63         bin->parsePtr = (unsigned char *)bin;
  64 }
  65
  66 static int ce_is_bin_image(void *image, int imglen)
  67 {
  68         if (imglen < CE_BIN_SIGN_LEN) {
  69                 return 0;
  70         }
  71
  72         return memcmp(image, CE_BIN_SIGN, CE_BIN_SIGN_LEN) == 0;
  73 }
  74
  75 static const struct ce_magic {
  76         char magic[8];
  77         size_t size;
  78         ce_std_driver_globals drv_glb;
  79 } ce_magic_template = {
  80         .magic = "KARO_CE6",
  81         .size = sizeof(ce_std_driver_globals),
  82         .drv_glb = {
  83                 .header = {
  84                         .signature = STD_DRV_GLB_SIGNATURE,
  85                         .oalVersion = 1,
  86                         .bspVersion = 2,
  87                 },
  88         },
  89 };
  90
  91 #ifdef DEBUG
  92 static void __attribute__((unused)) ce_dump_block(void *ptr, int length)
  93 {
  94         char *p = ptr;
  95         int i;
  96         int j;
  97
  98         for (i = 0; i < length; i++) {
  99                 if (!(i % 16)) {
 100                         printf("\n%p: ", ptr + i);
 101                 }
 102
 103                 printf("%02x ", p[i]);
 104                 if (!((i + 1) % 16)){
 105                         printf("      ");
 106                         for (j = i - 15; j <= i; j++){
 107                                 if((p[j] > 0x1f) && (p[j] < 0x7f)) {
 108                                         printf("%c", p[j]);
 109                                 } else {
 110                                         printf(".");
 111                                 }
 112                         }
 113                 }
 114         }
 115         printf("\n");
 116 }
 117 #else
 118 static inline void ce_dump_block(void *ptr, int length)
 119 {
 120 }
 121 #endif
 122
 123 static void ce_setup_std_drv_globals(ce_std_driver_globals *std_drv_glb)
 124 {
 125         char *mtdparts = getenv("mtdparts");
 126         size_t max_len = ALIGN((unsigned long)std_drv_glb, SZ_4K) -
 127                 (unsigned long)&std_drv_glb->mtdparts;
 128
 129         if (eth_get_dev()) {
 130                 memcpy(&std_drv_glb->kitl.mac, eth_get_dev()->enetaddr,
 131                         sizeof(std_drv_glb->kitl.mac));
 132         }
 133         snprintf(std_drv_glb->deviceId, sizeof(std_drv_glb->deviceId),
 134                 "Triton%02X", eth_get_dev()->enetaddr[5]);
 135
 136         net_copy_ip(&std_drv_glb->kitl.ipAddress, &net_ip);
 137         std_drv_glb->kitl.ipMask = getenv_ip("netmask").s_addr;
 138         std_drv_glb->kitl.ipRoute = getenv_ip("gatewayip").s_addr;
 139
 140         if (mtdparts) {
 141                 strncpy(std_drv_glb->mtdparts, mtdparts, max_len);
 142                 std_drv_glb->mtdparts[max_len - 1] = '\0';
 143         } else {
 144                 if (CONFIG_IS_ENABLED(CMD_MTDPARTS))
 145                         printf("Failed to get mtdparts environment variable\n");
 146         }
 147 }
 148
 149 static void ce_init_drv_globals(void)
 150 {
 151         struct ce_magic *ce_magic = (void *)CONFIG_SYS_SDRAM_BASE + 0x160;
 152         ce_std_driver_globals *std_drv_glb = &ce_magic->drv_glb;
 153
 154         debug("Copying CE MAGIC from %p to %p..%p\n",
 155                 &ce_magic_template, ce_magic,
 156                 (void *)ce_magic + sizeof(*ce_magic) - 1);
 157         memcpy(ce_magic, &ce_magic_template, sizeof(*ce_magic));
 158
 159         ce_setup_std_drv_globals(std_drv_glb);
 160         ce_magic->size = sizeof(*std_drv_glb) +
 161                 strlen(std_drv_glb->mtdparts) + 1;
 162         ce_dump_block(ce_magic, offsetof(struct ce_magic, drv_glb) +
 163                 ce_magic->size);
 164 }
 165
 166 static void ce_prepare_run_bin(ce_bin *bin)
 167 {
 168         /* Clear os RAM area (if needed) */
 169         if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
 170                 debug("cleaning memory from %p to %p\n",
 171                         bin->eRamStart, bin->eRamStart + bin->eRamLen);
 172
 173                 printf("Preparing clean boot ... ");
 174                 memset(bin->eRamStart, 0, bin->eRamLen);
 175                 printf("ok\n");
 176         }
 177
 178         ce_init_drv_globals();
 179
 180         /*
 181          * Make sure, all the above makes it into SDRAM because
 182          * WinCE switches the cache & MMU off, obviously without
 183          * flushing it first!
 184          */
 185         flush_dcache_all();
 186 }
 187
 188 static int ce_lookup_ep_bin(ce_bin *bin)
 189 {
 190         ce_rom_hdr *header;
 191         ce_toc_entry *tentry;
 192         e32_rom *e32;
 193         unsigned int i;
 194         uint32_t *sig = (uint32_t *)(bin->rtiPhysAddr + ROM_SIGNATURE_OFFSET);
 195
 196         debug("Looking for TOC signature at %p\n", sig);
 197
 198         /* Check image Table Of Contents (TOC) signature */
 199         if (*sig != ROM_SIGNATURE) {
 200                 printf("Error: Did not find image TOC signature!\n");
 201                 printf("Expected %08x at address %p; found %08x instead\n",
 202                         ROM_SIGNATURE, sig, *sig);
 203                 return 0;
 204         }
 205
 206         /* Lookup entry point */
 207         header = CE_FIX_ADDRESS(*(unsigned int *)(bin->rtiPhysAddr +
 208                                                 ROM_SIGNATURE_OFFSET +
 209                                                 sizeof(unsigned int)));
 210         tentry = (ce_toc_entry *)(header + 1);
 211
 212         for (i = 0; i < header->nummods; i++) {
 213                 // Look for 'nk.exe' module
 214                 if (strcmp(CE_FIX_ADDRESS(tentry[i].fileName), "nk.exe") == 0) {
 215                         // Save entry point and RAM addresses
 216
 217                         e32 = CE_FIX_ADDRESS(tentry[i].e32Offset);
 218
 219                         bin->eEntryPoint = CE_FIX_ADDRESS(tentry[i].loadOffset) +
 220                                 e32->e32_entryrva;
 221                         bin->eRamStart = CE_FIX_ADDRESS(header->ramStart);
 222                         bin->eRamLen = header->ramEnd - header->ramStart;
 223                         return 1;
 224                 }
 225         }
 226
 227         // Error: Did not find 'nk.exe' module
 228         return 0;
 229 }
 230
 231 static int ce_parse_bin(ce_bin *bin)
 232 {
 233         unsigned char *pbData = bin->data;
 234         int len = bin->dataLen;
 235         int copyLen;
 236
 237         debug("starting ce image parsing:\n\tbin->binLen: 0x%08X\n", bin->binLen);
 238
 239         if (len) {
 240                 if (bin->binLen == 0) {
 241                         // Check for the .BIN signature first
 242                         if (!ce_is_bin_image(pbData, len)) {
 243                                 printf("Error: Invalid or corrupted .BIN image!\n");
 244                                 return CE_PR_ERROR;
 245                         }
 246
 247                         printf("Loading Windows CE .BIN image ...\n");
 248                         // Skip signature
 249                         len -= CE_BIN_SIGN_LEN;
 250                         pbData += CE_BIN_SIGN_LEN;
 251                 }
 252
 253                 while (len) {
 254                         switch (bin->parseState) {
 255                         case CE_PS_RTI_ADDR:
 256                         case CE_PS_RTI_LEN:
 257                         case CE_PS_E_ADDR:
 258                         case CE_PS_E_LEN:
 259                         case CE_PS_E_CHKSUM:
 260                                 copyLen = CE_MIN(sizeof(unsigned int) - bin->parseLen, len);
 261                                 memcpy(&bin->parsePtr[bin->parseLen], pbData, copyLen);
 262
 263                                 bin->parseLen += copyLen;
 264                                 len -= copyLen;
 265                                 pbData += copyLen;
 266
 267                                 if (bin->parseLen == sizeof(unsigned int)) {
 268                                         if (bin->parseState == CE_PS_RTI_ADDR)
 269                                                 bin->rtiPhysAddr = CE_FIX_ADDRESS(bin->rtiPhysAddr);
 270                                         else if (bin->parseState == CE_PS_E_ADDR &&
 271                                                 bin->ePhysAddr)
 272                                                 bin->ePhysAddr = CE_FIX_ADDRESS(bin->ePhysAddr);
 273
 274                                         bin->parseState++;
 275                                         bin->parseLen = 0;
 276                                         bin->parsePtr += sizeof(unsigned int);
 277
 278                                         if (bin->parseState == CE_PS_E_DATA) {
 279                                                 if (bin->ePhysAddr) {
 280                                                         bin->parsePtr = bin->ePhysAddr;
 281                                                         bin->parseChkSum = 0;
 282                                                 } else {
 283                                                         /* EOF */
 284                                                         len = 0;
 285                                                         bin->endOfBin = 1;
 286                                                 }
 287                                         }
 288                                 }
 289                                 break;
 290
 291                         case CE_PS_E_DATA:
 292                                 debug("ePhysAddr=%p physlen=%08x parselen=%08x\n",
 293                                         bin->ePhysAddr, bin->ePhysLen, bin->parseLen);
 294                                 if (bin->ePhysAddr) {
 295                                         copyLen = CE_MIN(bin->ePhysLen - bin->parseLen, len);
 296                                         bin->parseLen += copyLen;
 297                                         len -= copyLen;
 298
 299                                         while (copyLen--) {
 300                                                 bin->parseChkSum += *pbData;
 301                                                 *bin->parsePtr++ = *pbData++;
 302                                         }
 303
 304                                         if (bin->parseLen == bin->ePhysLen) {
 305                                                 printf("Section [%02d]: address %p, size 0x%08X, checksum %s\n",
 306                                                         bin->section,
 307                                                         bin->ePhysAddr,
 308                                                         bin->ePhysLen,
 309                                                         (bin->eChkSum == bin->parseChkSum) ? "ok" : "fail");
 310
 311                                                 if (bin->eChkSum != bin->parseChkSum) {
 312                                                         printf("Error: Checksum error, corrupted .BIN file!\n");
 313                                                         printf("checksum calculated: 0x%08x from file: 0x%08x\n",
 314                                                                 bin->parseChkSum, bin->eChkSum);
 315                                                         bin->binLen = 0;
 316                                                         return CE_PR_ERROR;
 317                                                 }
 318
 319                                                 bin->section++;
 320                                                 bin->parseState = CE_PS_E_ADDR;
 321                                                 bin->parseLen = 0;
 322                                                 bin->parsePtr = (unsigned char *)&bin->ePhysAddr;
 323                                         }
 324                                 } else {
 325                                         bin->parseLen = 0;
 326                                         bin->endOfBin = 1;
 327                                         len = 0;
 328                                 }
 329                                 break;
 330                         }
 331                 }
 332         }
 333
 334         if (bin->endOfBin) {
 335                 if (!ce_lookup_ep_bin(bin)) {
 336                         printf("Error: entry point not found!\n");
 337                         bin->binLen = 0;
 338                         return CE_PR_ERROR;
 339                 }
 340
 341                 printf("Entry point: %p, address range: %p-%p\n",
 342                         bin->eEntryPoint,
 343                         bin->rtiPhysAddr,
 344                         bin->rtiPhysAddr + bin->rtiPhysLen);
 345
 346                 return CE_PR_EOF;
 347         }
 348
 349         /* Need more data */
 350         bin->binLen += bin->dataLen;
 351         return CE_PR_MORE;
 352 }
 353
 354 static int ce_bin_load(void *image, int imglen)
 355 {
 356         ce_init_bin(&g_bin, image);
 357         g_bin.dataLen = imglen;
 358         if (ce_parse_bin(&g_bin) == CE_PR_EOF) {
 359                 ce_prepare_run_bin(&g_bin);
 360                 return 1;
 361         }
 362
 363         return 0;
 364 }
 365
 366 static void ce_run_bin(void (*entry)(void))
 367 {
 368         printf("Launching Windows CE ...\n");
 369 #ifdef TEST_LAUNCH
 370 return;
 371 #endif
 372         entry();
 373 }
 374
 375 static int do_bootce(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 376 {
 377         void *addr;
 378         size_t image_size;
 379
 380         if (argc > 1) {
 381                 if (strcmp(argv[1], "-i") == 0) {
 382                         ce_init_drv_globals();
 383                         return CMD_RET_SUCCESS;
 384                 }
 385                 addr = (void *)simple_strtoul(argv[1], NULL, 16);
 386                 image_size = INT_MAX;           /* actually we do not know the image size */
 387         } else if (getenv("fileaddr") != NULL) {
 388                 addr = (void *)getenv_ulong("fileaddr", 16, 0);
 389                 image_size = getenv_ulong("filesize", 16, INT_MAX);
 390         } else {
 391                 return CMD_RET_USAGE;
 392         }
 393
 394         printf ("## Booting Windows CE Image from address %p ...\n", addr);
 395
 396         /* check if there is a valid windows CE image */
 397         if (ce_is_bin_image(addr, image_size)) {
 398                 if (!ce_bin_load(addr, image_size)) {
 399                         /* Ops! Corrupted .BIN image! */
 400                         /* Handle error here ...      */
 401                         printf("corrupted .BIN image !!!\n");
 402                         return CMD_RET_FAILURE;
 403                 }
 404                 if (getenv_yesno("autostart") != 1) {
 405                         /*
 406                          * just use bootce to load the image to SDRAM;
 407                          * Do not start it automatically.
 408                          */
 409                         setenv_addr("fileaddr", g_bin.eEntryPoint);
 410                         return CMD_RET_SUCCESS;
 411                 }
 412                 ce_run_bin(g_bin.eEntryPoint);          /* start the image */
 413         } else {
 414                 printf("Image does not seem to be a valid Windows CE image!\n");
 415                 return CMD_RET_FAILURE;
 416         }
 417         return CMD_RET_FAILURE; /* never reached - just to keep compiler happy */
 418 }
 419 U_BOOT_CMD(
 420         bootce, 2, 0, do_bootce,
 421         "Boot a Windows CE image from RAM",
 422         "[addr]\n"
 423         "\taddr\t\tboot image from address addr (default ${fileaddr})\n"
 424         "or\n"
 425         "\t-i\t\tinitialize the WinCE globals data structure (before loading a .nb0 image)"
 426 );
 427
 428 #ifdef CONFIG_CMD_NAND
 429 static int ce_nand_load(ce_bin *bin, loff_t *offset, void *buf, size_t max_len)
 430 {
 431         int ret;
 432         size_t len = max_len;
 433         nand_info_t *nand = &nand_info[0];
 434
 435         while (nand_block_isbad(nand, *offset & ~(max_len - 1))) {
 436                 printf("Skipping bad block 0x%08llx\n",
 437                         *offset & ~(max_len - 1));
 438                 *offset += max_len;
 439                 if (*offset + max_len > nand->size)
 440                         return -EINVAL;
 441         }
 442
 443         ret = nand_read(nand, *offset, &len, buf);
 444         if (ret < 0)
 445                 return ret;
 446
 447         bin->dataLen = len;
 448         return len;
 449 }
 450
 451 static int do_nbootce(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 452 {
 453         int ret;
 454         struct mtd_device *dev;
 455         struct part_info *part_info;
 456         u8 part_num;
 457         loff_t offset;
 458         char *end;
 459         void *buffer;
 460         size_t bufsize = nand_info[0].erasesize, len;
 461
 462         if (argc < 2 || argc > 3)
 463                 return CMD_RET_USAGE;
 464
 465         ret = mtdparts_init();
 466         if (ret)
 467                 return CMD_RET_FAILURE;
 468
 469         offset = simple_strtoul(argv[1], &end, 16);
 470         if (*end != '\0') {
 471                 ret = find_dev_and_part(argv[1], &dev, &part_num,
 472                                         &part_info);
 473                 if (ret != 0) {
 474                         printf("Partition '%s' not found\n", argv[1]);
 475                         return CMD_RET_FAILURE;
 476                 }
 477                 offset = part_info->offset;
 478                 printf ("## Booting Windows CE Image from NAND partition %s at offset %08llx\n",
 479                         argv[1], offset);
 480         } else {
 481                 printf ("## Booting Windows CE Image from NAND offset %08llx\n",
 482                         offset);
 483         }
 484
 485         buffer = malloc(bufsize);
 486         if (buffer == NULL) {
 487                 printf("Failed to allocate %u byte buffer\n", bufsize);
 488                 return CMD_RET_FAILURE;
 489         }
 490
 491         ce_init_bin(&g_bin, buffer);
 492
 493         ret = ce_nand_load(&g_bin, &offset, buffer, bufsize);
 494         if (ret < 0) {
 495                 printf("Failed to read NAND: %d\n", ret);
 496                 goto err;
 497         }
 498         len = ret;
 499         /* check if there is a valid windows CE image header */
 500         if (ce_is_bin_image(buffer, len)) {
 501                 do {
 502                         ret = ce_parse_bin(&g_bin);
 503                         switch (ret) {
 504                         case CE_PR_MORE:
 505                         {
 506                                 if (ctrlc()) {
 507                                         printf("NBOOTCE - canceled by user\n");
 508                                         goto err;
 509                                 }
 510                                 offset += len;
 511                                 len = ce_nand_load(&g_bin, &offset, buffer,
 512                                                 bufsize);
 513                                 if (len < 0) {
 514                                         printf("Nand read error: %d\n", len);
 515                                         ret = len;
 516                                         goto err;
 517                                 }
 518                         }
 519                         break;
 520
 521                         case CE_PR_EOF:
 522                                 ce_prepare_run_bin(&g_bin);
 523                                 break;
 524
 525                         case CE_PR_ERROR:
 526                                 break;
 527                         }
 528                 } while (ret == CE_PR_MORE);
 529                 free(buffer);
 530                 if (ret != CE_PR_EOF)
 531                         return CMD_RET_FAILURE;
 532
 533                 if (getenv_yesno("autostart") != 1) {
 534                         /*
 535                          * just use bootce to load the image to SDRAM;
 536                          * Do not start it automatically.
 537                          */
 538                         setenv_addr("fileaddr", g_bin.eEntryPoint);
 539                         return CMD_RET_SUCCESS;
 540                 }
 541                 ce_run_bin(g_bin.eEntryPoint);          /* start the image */
 542         } else {
 543                 printf("Image does not seem to be a valid Windows CE image!\n");
 544         }
 545 err:
 546         free(buffer);
 547         return CMD_RET_FAILURE;
 548 }
 549 U_BOOT_CMD(
 550         nbootce, 2, 0, do_nbootce,
 551         "Boot a Windows CE image from NAND",
 552         "off|partitition\n"
 553         "\toff\t\t- flash offset (hex)\n"
 554         "\tpartition\t- partition name"
 555 );
 556 #endif
 557
 558 static int ce_send_write_ack(ce_net *net)
 559 {
 560         int ret;
 561         unsigned short wdata[2];
 562         int retries = 0;
 563
 564         wdata[0] = htons(EDBG_CMD_WRITE_ACK);
 565         wdata[1] = htons(net->blockNum);
 566         net->dataLen = sizeof(wdata);
 567         memcpy(net->data, wdata, net->dataLen);
 568
 569         do {
 570                 ret = bootme_send_frame(net->data, net->dataLen);
 571                 if (ret) {
 572                         printf("Failed to send write ack %d; retries=%d\n",
 573                                 ret, retries);
 574                 }
 575         } while (ret != 0 && retries-- > 0);
 576         return ret;
 577 }
 578
 579 static enum bootme_state ce_process_download(ce_net *net, ce_bin *bin)
 580 {
 581         int ret = net->state;
 582
 583         if (net->dataLen >= 4) {
 584                 unsigned short command;
 585                 unsigned short blknum;
 586
 587                 memcpy(&command, net->data, sizeof(command));
 588                 command = ntohs(command);
 589                 debug("command found: 0x%04X\n", command);
 590
 591                 if (net->state == BOOTME_DOWNLOAD) {
 592                         unsigned short nxt = net->blockNum + 1;
 593
 594                         memcpy(&blknum, &net->data[2], sizeof(blknum));
 595                         blknum = ntohs(blknum);
 596                         if (blknum == nxt) {
 597                                 net->blockNum = blknum;
 598                         } else {
 599                                 int rc = ce_send_write_ack(net);
 600
 601                                 if (net->verbose)
 602                                         printf("Dropping out of sequence packet with ID %d (expected %d)\n",
 603                                                 blknum, nxt);
 604                                 if (rc != 0)
 605                                         return rc;
 606
 607                                 return ret;
 608                         }
 609                 }
 610
 611                 switch (command) {
 612                 case EDBG_CMD_WRITE_REQ:
 613                         if (net->state == BOOTME_INIT) {
 614                                 // Check file name for WRITE request
 615                                 // CE EShell uses "boot.bin" file name
 616                                 if (strncmp((char *)&net->data[2],
 617                                                 "boot.bin", 8) == 0) {
 618                                         // Some diag output
 619                                         if (net->verbose) {
 620                                                 printf("Locked Down download link, IP: %pI4\n",
 621                                                         &net_server_ip);
 622                                                 printf("Sending BOOTME request [%d] to %pI4\n",
 623                                                         net->seqNum, &net_server_ip);
 624                                         }
 625
 626                                         // Lock down EShell download link
 627                                         ret = BOOTME_DOWNLOAD;
 628                                 } else {
 629                                         // Unknown link
 630                                         printf("Unknown link\n");
 631                                 }
 632
 633                                 if (ret == BOOTME_DOWNLOAD) {
 634                                         int rc = ce_send_write_ack(net);
 635                                         if (rc != 0)
 636                                                 return rc;
 637                                 }
 638                         }
 639                         break;
 640
 641                 case EDBG_CMD_WRITE:
 642                         /* Fixup data len */
 643                         bin->data = &net->data[4];
 644                         bin->dataLen = net->dataLen - 4;
 645                         ret = ce_parse_bin(bin);
 646                         if (ret != CE_PR_ERROR) {
 647                                 int rc = ce_send_write_ack(net);
 648                                 if (rc)
 649                                         return rc;
 650                                 if (ret == CE_PR_EOF)
 651                                         ret = BOOTME_DONE;
 652                         } else {
 653                                 ret = BOOTME_ERROR;
 654                         }
 655                         break;
 656
 657                 case EDBG_CMD_READ_REQ:
 658                         printf("Ignoring EDBG_CMD_READ_REQ\n");
 659                         /* Read requests are not supported
 660                          * Do nothing ...
 661                          */
 662                         break;
 663
 664                 case EDBG_CMD_ERROR:
 665                         printf("Error: unknown error on the host side\n");
 666
 667                         bin->binLen = 0;
 668                         ret = BOOTME_ERROR;
 669                         break;
 670
 671                 default:
 672                         printf("unknown command 0x%04X\n", command);
 673                         net->state = BOOTME_ERROR;
 674                 }
 675         }
 676         return ret;
 677 }
 678
 679 static enum bootme_state ce_process_edbg(ce_net *net, ce_bin *bin)
 680 {
 681         enum bootme_state ret = net->state;
 682         eth_dbg_hdr header;
 683
 684         if (net->dataLen < sizeof(header)) {
 685                 /* Bad packet */
 686                 printf("Invalid packet size %u\n", net->dataLen);
 687                 net->dataLen = 0;
 688                 return ret;
 689         }
 690         memcpy(&header, net->data, sizeof(header));
 691         if (header.id != EDBG_ID) {
 692                 /* Bad packet */
 693                 printf("Bad EDBG ID %08x\n", header.id);
 694                 net->dataLen = 0;
 695                 return ret;
 696         }
 697
 698         if (header.service != EDBG_SVC_ADMIN) {
 699                 /* Unknown service */
 700                 printf("Bad EDBG service %02x\n", header.service);
 701                 net->dataLen = 0;
 702                 return ret;
 703         }
 704
 705         if (net->state == BOOTME_INIT) {
 706                 /* Some diag output */
 707                 if (net->verbose) {
 708                         printf("Locked Down EDBG service link, IP: %pI4\n",
 709                                 &net_server_ip);
 710                 }
 711
 712                 /* Lock down EDBG link */
 713                 net->state = BOOTME_DEBUG;
 714         }
 715
 716         switch (header.cmd) {
 717         case EDBG_CMD_JUMPIMG:
 718                 net->gotJumpingRequest = 1;
 719
 720                 if (net->verbose) {
 721                         printf("Received JUMPING command\n");
 722                 }
 723                 /* Just pass through and copy CONFIG structure */
 724                 ret = BOOTME_DONE;
 725         case EDBG_CMD_OS_CONFIG:
 726                 /* Copy config structure */
 727                 memcpy(&bin->edbgConfig, &net->data[sizeof(header)],
 728                         sizeof(edbg_os_config_data));
 729                 if (net->verbose) {
 730                         printf("Received CONFIG command\n");
 731                         if (bin->edbgConfig.flags & EDBG_FL_DBGMSG) {
 732                                 printf("--> Enabling DBGMSG service, IP: %pI4, port: %d\n",
 733                                         &bin->edbgConfig.dbgMsgIPAddr,
 734                                         ntohs(bin->edbgConfig.dbgMsgPort));
 735                         }
 736
 737                         if (bin->edbgConfig.flags & EDBG_FL_PPSH) {
 738                                 printf("--> Enabling PPSH service, IP: %pI4, port: %d\n",
 739                                         &bin->edbgConfig.ppshIPAddr,
 740                                         ntohs(bin->edbgConfig.ppshPort));
 741                         }
 742
 743                         if (bin->edbgConfig.flags & EDBG_FL_KDBG) {
 744                                 printf("--> Enabling KDBG service, IP: %pI4, port: %d\n",
 745                                         &bin->edbgConfig.kdbgIPAddr,
 746                                         ntohs(bin->edbgConfig.kdbgPort));
 747                         }
 748
 749                         if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
 750                                 printf("--> Force clean boot\n");
 751                         }
 752                 }
 753                 break;
 754
 755         default:
 756                 if (net->verbose) {
 757                         printf("Received unknown command: %08X\n", header.cmd);
 758                 }
 759                 return BOOTME_ERROR;
 760         }
 761
 762         /* Respond with ack */
 763         header.flags = EDBG_FL_FROM_DEV | EDBG_FL_ACK;
 764         memcpy(net->data, &header, sizeof(header));
 765         net->dataLen = EDBG_DATA_OFFSET;
 766
 767         int retries = 10;
 768         int rc;
 769         do {
 770                 rc = bootme_send_frame(net->data, net->dataLen);
 771                 if (rc != 0) {
 772                         printf("Failed to send ACK: %d\n", rc);
 773                 }
 774         } while (rc && retries-- > 0);
 775         return rc ?: ret;
 776 }
 777
 778 static enum bootme_state ce_edbg_handler(const void *buf, size_t len)
 779 {
 780         if (len == 0)
 781                 return BOOTME_DONE;
 782
 783         g_net.data = (void *)buf;
 784         g_net.dataLen = len;
 785
 786         return ce_process_edbg(&g_net, &g_bin);
 787 }
 788
 789 static void ce_init_edbg_link(ce_net *net)
 790 {
 791         /* Initialize EDBG link for commands */
 792         net->state = BOOTME_INIT;
 793 }
 794
 795 static enum bootme_state ce_download_handler(const void *buf, size_t len)
 796 {
 797         g_net.data = (void *)buf;
 798         g_net.dataLen = len;
 799
 800         g_net.state = ce_process_download(&g_net, &g_bin);
 801         return g_net.state;
 802 }
 803
 804 static int ce_send_bootme(ce_net *net)
 805 {
 806         eth_dbg_hdr *header;
 807         edbg_bootme_data *data;
 808         unsigned char txbuf[PKTSIZE_ALIGN];
 809 #ifdef DEBUG
 810         int     i;
 811         unsigned char   *pkt;
 812 #endif
 813         /* Fill out BOOTME packet */
 814         net->data = txbuf;
 815
 816         memset(net->data, 0, PKTSIZE);
 817         header = (eth_dbg_hdr *)net->data;
 818         data = (edbg_bootme_data *)header->data;
 819
 820         header->id = EDBG_ID;
 821         header->service = EDBG_SVC_ADMIN;
 822         header->flags = EDBG_FL_FROM_DEV;
 823         header->seqNum = net->seqNum++;
 824         header->cmd = EDBG_CMD_BOOTME;
 825
 826         data->versionMajor = 0;
 827         data->versionMinor = 0;
 828         data->cpuId = EDBG_CPU_TYPE_ARM;
 829         data->bootmeVer = EDBG_CURRENT_BOOTME_VERSION;
 830         data->bootFlags = 0;
 831         data->downloadPort = 0;
 832         data->svcPort = 0;
 833
 834         /* MAC address from environment*/
 835         if (!eth_getenv_enetaddr("ethaddr", data->macAddr)) {
 836                 printf("'ethaddr' is not set or invalid\n");
 837                 memset(data->macAddr, 0, sizeof(data->macAddr));
 838         }
 839
 840         /* IP address from active config */
 841         net_copy_ip(&data->ipAddr, &net_ip);
 842
 843         // Device name string (NULL terminated). Should include
 844         // platform and number based on Ether address (e.g. Odo42, CEPCLS2346, etc)
 845
 846         // We will use lower MAC address segment to create device name
 847         // eg. MAC '00-0C-C6-69-09-05', device name 'Triton05'
 848
 849         strncpy(data->platformId, "Triton", sizeof(data->platformId));
 850         snprintf(data->deviceName, sizeof(data->deviceName), "%s%02X",
 851                 data->platformId, data->macAddr[5]);
 852
 853 #ifdef DEBUG
 854         printf("header->id: %08X\n", header->id);
 855         printf("header->service: %08X\n", header->service);
 856         printf("header->flags: %08X\n", header->flags);
 857         printf("header->seqNum: %08X\n", header->seqNum);
 858         printf("header->cmd: %08X\n\n", header->cmd);
 859
 860         printf("data->versionMajor: %08X\n", data->versionMajor);
 861         printf("data->versionMinor: %08X\n", data->versionMinor);
 862         printf("data->cpuId: %08X\n", data->cpuId);
 863         printf("data->bootmeVer: %08X\n", data->bootmeVer);
 864         printf("data->bootFlags: %08X\n", data->bootFlags);
 865         printf("data->svcPort: %08X\n\n", ntohs(data->svcPort));
 866
 867         printf("data->macAddr: %pM\n", data->macAddr);
 868         printf("data->ipAddr: %pI4\n", &data->ipAddr);
 869         printf("data->platformId: %s\n", data->platformId);
 870         printf("data->deviceName: %s\n", data->deviceName);
 871 #endif
 872         // Some diag output ...
 873         if (net->verbose) {
 874                 printf("Sending BOOTME request [%d] to %pI4\n", net->seqNum,
 875                         &server_ip);
 876         }
 877
 878         net->dataLen = BOOTME_PKT_SIZE;
 879 //      net->status = CE_PR_MORE;
 880         net->state = BOOTME_INIT;
 881 #ifdef DEBUG
 882         debug("Start of buffer:      %p\n", net->data);
 883         debug("Start of ethernet buffer:   %p\n", net->data);
 884         debug("Start of CE header:         %p\n", header);
 885         debug("Start of CE data:           %p\n", data);
 886
 887         pkt = net->data;
 888         debug("packet to send (ceconnect): \n");
 889         for (i = 0; i < net->dataLen; i++) {
 890                 debug("0x%02X ", pkt[i]);
 891                 if (!((i + 1) % 16))
 892                         debug("\n");
 893         }
 894         debug("\n");
 895 #endif
 896         return BootMeRequest(server_ip, net->data, net->dataLen, 1);
 897 }
 898
 899 static inline int ce_init_download_link(ce_net *net, ce_bin *bin, int verbose)
 900 {
 901         if (!eth_get_dev()) {
 902                 printf("No network interface available\n");
 903                 return -ENODEV;
 904         }
 905         printf("Using device '%s'\n", eth_get_name());
 906
 907         /* Initialize EDBG link for download */
 908         memset(net, 0, sizeof(*net));
 909
 910         net->verbose = verbose;
 911
 912         /* buffer will be dynamically assigned in ce_download_handler() */
 913         ce_init_bin(bin, NULL);
 914         return 0;
 915 }
 916
 917 static inline int ce_download_file(ce_net *net, ulong timeout)
 918 {
 919         ulong start = get_timer_masked();
 920
 921         while (net->state == BOOTME_INIT) {
 922                 int ret;
 923
 924                 if (timeout && get_timer(start) > timeout) {
 925                         printf("CELOAD - Canceled, timeout\n");
 926                         return 1;
 927                 }
 928
 929                 if (ctrlc()) {
 930                         printf("CELOAD - canceled by user\n");
 931                         return 1;
 932                 }
 933
 934                 if (ce_send_bootme(&g_net)) {
 935                         printf("CELOAD - error while sending BOOTME request\n");
 936                         return 1;
 937                 }
 938                 if (net->verbose) {
 939                         if (timeout) {
 940                                 printf("Waiting for connection, timeout %lu sec\n",
 941                                         DIV_ROUND_UP(timeout - get_timer(start),
 942                                                 CONFIG_SYS_HZ));
 943                         } else {
 944                                 printf("Waiting for connection, enter ^C to abort\n");
 945                         }
 946                 }
 947
 948                 ret = BootMeDownload(ce_download_handler);
 949                 if (ret == BOOTME_ERROR) {
 950                         printf("CELOAD - aborted\n");
 951                         return 1;
 952                 }
 953         }
 954         return 0;
 955 }
 956
 957 static void ce_disconnect(void)
 958 {
 959         net_set_udp_handler(NULL);
 960         eth_halt();
 961 }
 962
 963 static int do_ceconnect(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 964 {
 965         int verbose = 0;
 966         ulong timeout = 0;
 967         int ret = 1;
 968         int i;
 969
 970         server_ip.s_addr = 0;
 971
 972         for (i = 1; i < argc; i++){
 973                 if (*argv[i] != '-')
 974                         break;
 975                 if (argv[i][1] == 'v') {
 976                         verbose = 1;
 977                 } else if (argv[i][1] == 't') {
 978                         i++;
 979                         if (argc > i) {
 980                                 timeout = simple_strtoul(argv[i],
 981                                                         NULL, 0);
 982                                 if (timeout >= UINT_MAX / CONFIG_SYS_HZ) {
 983                                         printf("Timeout value %lu out of range (max.: %u)\n",
 984                                                 timeout, UINT_MAX / CONFIG_SYS_HZ - 1);
 985                                         return CMD_RET_USAGE;
 986                                 }
 987                                 timeout *= CONFIG_SYS_HZ;
 988                         } else {
 989                                 printf("Option requires an argument - t\n");
 990                                 return CMD_RET_USAGE;
 991                         }
 992                 } else if (argv[i][1] == 'h') {
 993                         i++;
 994                         if (argc > i) {
 995                                 server_ip = string_to_ip(argv[i]);
 996                                 printf("Using server %pI4\n", &server_ip);
 997                         } else {
 998                                 printf("Option requires an argument - h\n");
 999                                 return CMD_RET_USAGE;
1000                         }
1001                 }
1002         }
1003
1004         if (ce_init_download_link(&g_net, &g_bin, verbose) != 0)
1005                 goto err;
1006
1007         if (ce_download_file(&g_net, timeout))
1008                 goto err;
1009
1010         if (g_bin.binLen) {
1011                 // Try to receive edbg commands from host
1012                 ce_init_edbg_link(&g_net);
1013                 if (verbose)
1014                         printf("Waiting for EDBG commands ...\n");
1015
1016                 ret = BootMeDebugStart(ce_edbg_handler);
1017                 if (ret != BOOTME_DONE)
1018                         goto err;
1019
1020                 // Prepare WinCE image for execution
1021                 ce_prepare_run_bin(&g_bin);
1022
1023                 // Launch WinCE, if necessary
1024                 if (g_net.gotJumpingRequest)
1025                         ce_run_bin(g_bin.eEntryPoint);
1026         }
1027         ret = 0;
1028 err:
1029         ce_disconnect();
1030         return ret == 0 ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
1031 }
1032 U_BOOT_CMD(
1033         ceconnect, 6, 1, do_ceconnect,
1034         "Set up a connection to the CE host PC over TCP/IP and download the run-time image",
1035         "[-v] [-t <timeout>] [-h host]\n"
1036         "  -v            - verbose operation\n"
1037         "  -t <timeout>  - max wait time (#sec) for the connection\n"
1038         "  -h <host>     - send BOOTME requests to <host> (default: broadcast address 255.255.255.255)"
1039 );