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