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         ce_driver_globals *drv_glb;
 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         /* Clear os RAM area (if needed) */
 155         if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
 156                 debug("cleaning memory from %p to %p\n",
 157                         bin->eRamStart, bin->eRamStart + bin->eRamLen);
 158
 159                 printf("Preparing clean boot ... ");
 160                 memset(bin->eRamStart, 0, bin->eRamLen);
 161                 printf("ok\n");
 162         }
 163
 164         /* Prepare driver globals (if needed) */
 165         if (bin->eDrvGlb) {
 166                 debug("Copying CE MAGIC from %p to %p..%p\n",
 167                         &ce_magic_template, ce_magic,
 168                         (void *)ce_magic + sizeof(*ce_magic) - 1);
 169                 memcpy(ce_magic, &ce_magic_template, sizeof(*ce_magic));
 170
 171                 ce_setup_std_drv_globals(std_drv_glb);
 172                 ce_magic->size = sizeof(*std_drv_glb) +
 173                         strlen(std_drv_glb->mtdparts) + 1;
 174                 ce_dump_block(ce_magic, offsetof(struct ce_magic, drv_glb) +
 175                         ce_magic->size);
 176
 177                 drv_glb = bin->eDrvGlb;
 178                 memset(drv_glb, 0, sizeof(*drv_glb));
 179
 180                 drv_glb->signature = DRV_GLB_SIGNATURE;
 181
 182                 /* Local ethernet MAC address */
 183                 memcpy(drv_glb->macAddr, std_drv_glb->kitl.mac,
 184                         sizeof(drv_glb->macAddr));
 185                 debug("got MAC address %pM from environment\n",
 186                         drv_glb->macAddr);
 187
 188                 /* Local IP address */
 189                 drv_glb->ipAddr = getenv_IPaddr("ipaddr");
 190
 191                 /* Subnet mask */
 192                 drv_glb->ipMask = getenv_IPaddr("netmask");
 193
 194                 /* Gateway config */
 195                 drv_glb->ipGate = getenv_IPaddr("gatewayip");
 196 #ifdef DEBUG
 197                 debug("got IP address %pI4 from environment\n",
 198                         &drv_glb->ipAddr);
 199                 debug("got IP mask %pI4 from environment\n",
 200                         &drv_glb->ipMask);
 201                 debug("got gateway address %pI4 from environment\n",
 202                         &drv_glb->ipGate);
 203 #endif
 204                 /* EDBG services config */
 205                 memcpy(&drv_glb->edbgConfig, &bin->edbgConfig,
 206                         sizeof(bin->edbgConfig));
 207         }
 208
 209         /*
 210          * Make sure, all the above makes it into SDRAM because
 211          * WinCE switches the cache & MMU off, obviously without
 212          * flushing it first!
 213          */
 214         flush_dcache_all();
 215 }
 216
 217 static int ce_lookup_ep_bin(ce_bin *bin)
 218 {
 219         ce_rom_hdr *header;
 220         ce_toc_entry *tentry;
 221         e32_rom *e32;
 222         unsigned int i;
 223         uint32_t *sig = (uint32_t *)(bin->rtiPhysAddr + ROM_SIGNATURE_OFFSET);
 224
 225         debug("Looking for TOC signature at %p\n", sig);
 226
 227         /* Check image Table Of Contents (TOC) signature */
 228         if (*sig != ROM_SIGNATURE) {
 229                 printf("Error: Did not find image TOC signature!\n");
 230                 printf("Expected %08x at address %p; found %08x instead\n",
 231                         ROM_SIGNATURE, sig, *sig);
 232                 return 0;
 233         }
 234
 235         /* Lookup entry point */
 236         header = CE_FIX_ADDRESS(*(unsigned int *)(bin->rtiPhysAddr +
 237                                                 ROM_SIGNATURE_OFFSET +
 238                                                 sizeof(unsigned int)));
 239         tentry = (ce_toc_entry *)(header + 1);
 240
 241         for (i = 0; i < header->nummods; i++) {
 242                 // Look for 'nk.exe' module
 243                 if (strcmp(CE_FIX_ADDRESS(tentry[i].fileName), "nk.exe") == 0) {
 244                         // Save entry point and RAM addresses
 245
 246                         e32 = CE_FIX_ADDRESS(tentry[i].e32Offset);
 247
 248                         bin->eEntryPoint = CE_FIX_ADDRESS(tentry[i].loadOffset) +
 249                                 e32->e32_entryrva;
 250                         bin->eRamStart = CE_FIX_ADDRESS(header->ramStart);
 251                         bin->eRamLen = header->ramEnd - header->ramStart;
 252                         // Save driver_globals address
 253                         // Must follow RAM section in CE config.bib file
 254                         //
 255                         // eg.
 256                         //
 257                         // RAM          80900000        03200000        RAM
 258                         // DRV_GLB      83B00000        00001000        RESERVED
 259                         //
 260                         bin->eDrvGlb = CE_FIX_ADDRESS(header->ramEnd);
 261                         return 1;
 262                 }
 263         }
 264
 265         // Error: Did not find 'nk.exe' module
 266         return 0;
 267 }
 268
 269 static int ce_parse_bin(ce_bin *bin)
 270 {
 271         unsigned char *pbData = bin->data;
 272         int len = bin->dataLen;
 273         int copyLen;
 274
 275         debug("starting ce image parsing:\n\tbin->binLen: 0x%08X\n", bin->binLen);
 276
 277         if (len) {
 278                 if (bin->binLen == 0) {
 279                         // Check for the .BIN signature first
 280                         if (!ce_is_bin_image(pbData, len)) {
 281                                 printf("Error: Invalid or corrupted .BIN image!\n");
 282                                 return CE_PR_ERROR;
 283                         }
 284
 285                         printf("Loading Windows CE .BIN image ...\n");
 286                         // Skip signature
 287                         len -= CE_BIN_SIGN_LEN;
 288                         pbData += CE_BIN_SIGN_LEN;
 289                 }
 290
 291                 while (len) {
 292                         switch (bin->parseState) {
 293                         case CE_PS_RTI_ADDR:
 294                         case CE_PS_RTI_LEN:
 295                         case CE_PS_E_ADDR:
 296                         case CE_PS_E_LEN:
 297                         case CE_PS_E_CHKSUM:
 298                                 copyLen = CE_MIN(sizeof(unsigned int) - bin->parseLen, len);
 299                                 memcpy(&bin->parsePtr[bin->parseLen], pbData, copyLen);
 300
 301                                 bin->parseLen += copyLen;
 302                                 len -= copyLen;
 303                                 pbData += copyLen;
 304
 305                                 if (bin->parseLen == sizeof(unsigned int)) {
 306                                         if (bin->parseState == CE_PS_RTI_ADDR)
 307                                                 bin->rtiPhysAddr = CE_FIX_ADDRESS(bin->rtiPhysAddr);
 308                                         else if (bin->parseState == CE_PS_E_ADDR &&
 309                                                 bin->ePhysAddr)
 310                                                 bin->ePhysAddr = CE_FIX_ADDRESS(bin->ePhysAddr);
 311
 312                                         bin->parseState++;
 313                                         bin->parseLen = 0;
 314                                         bin->parsePtr += sizeof(unsigned int);
 315
 316                                         if (bin->parseState == CE_PS_E_DATA) {
 317                                                 if (bin->ePhysAddr) {
 318                                                         bin->parsePtr = bin->ePhysAddr;
 319                                                         bin->parseChkSum = 0;
 320                                                 } else {
 321                                                         /* EOF */
 322                                                         len = 0;
 323                                                         bin->endOfBin = 1;
 324                                                 }
 325                                         }
 326                                 }
 327                                 break;
 328
 329                         case CE_PS_E_DATA:
 330                                 debug("ePhysAddr=%p physlen=%08x parselen=%08x\n",
 331                                         bin->ePhysAddr, bin->ePhysLen, bin->parseLen);
 332                                 if (bin->ePhysAddr) {
 333                                         copyLen = CE_MIN(bin->ePhysLen - bin->parseLen, len);
 334                                         bin->parseLen += copyLen;
 335                                         len -= copyLen;
 336
 337                                         while (copyLen--) {
 338                                                 bin->parseChkSum += *pbData;
 339                                                 *bin->parsePtr++ = *pbData++;
 340                                         }
 341
 342                                         if (bin->parseLen == bin->ePhysLen) {
 343                                                 printf("Section [%02d]: address %p, size 0x%08X, checksum %s\n",
 344                                                         bin->section,
 345                                                         bin->ePhysAddr,
 346                                                         bin->ePhysLen,
 347                                                         (bin->eChkSum == bin->parseChkSum) ? "ok" : "fail");
 348
 349                                                 if (bin->eChkSum != bin->parseChkSum) {
 350                                                         printf("Error: Checksum error, corrupted .BIN file!\n");
 351                                                         printf("checksum calculated: 0x%08x from file: 0x%08x\n",
 352                                                                 bin->parseChkSum, bin->eChkSum);
 353                                                         bin->binLen = 0;
 354                                                         return CE_PR_ERROR;
 355                                                 }
 356
 357                                                 bin->section++;
 358                                                 bin->parseState = CE_PS_E_ADDR;
 359                                                 bin->parseLen = 0;
 360                                                 bin->parsePtr = (unsigned char *)&bin->ePhysAddr;
 361                                         }
 362                                 } else {
 363                                         bin->parseLen = 0;
 364                                         bin->endOfBin = 1;
 365                                         len = 0;
 366                                 }
 367                                 break;
 368                         }
 369                 }
 370         }
 371
 372         if (bin->endOfBin) {
 373                 if (!ce_lookup_ep_bin(bin)) {
 374                         printf("Error: entry point not found!\n");
 375                         bin->binLen = 0;
 376                         return CE_PR_ERROR;
 377                 }
 378
 379                 printf("Entry point: %p, address range: %p-%p\n",
 380                         bin->eEntryPoint,
 381                         bin->rtiPhysAddr,
 382                         bin->rtiPhysAddr + bin->rtiPhysLen);
 383
 384                 return CE_PR_EOF;
 385         }
 386
 387         /* Need more data */
 388         bin->binLen += bin->dataLen;
 389         return CE_PR_MORE;
 390 }
 391
 392 static int ce_bin_load(void *image, int imglen)
 393 {
 394         ce_init_bin(&g_bin, image);
 395         g_bin.dataLen = imglen;
 396         if (ce_parse_bin(&g_bin) == CE_PR_EOF) {
 397                 ce_prepare_run_bin(&g_bin);
 398                 return 1;
 399         }
 400
 401         return 0;
 402 }
 403
 404 static void ce_run_bin(void (*entry)(void))
 405 {
 406         printf("Launching Windows CE ...\n");
 407 #ifdef TEST_LAUNCH
 408 return;
 409 #endif
 410         entry();
 411 }
 412
 413 static int do_bootce(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 414 {
 415         void *addr;
 416         size_t image_size;
 417
 418         if (argc > 1) {
 419                 addr = (void *)simple_strtoul(argv[1], NULL, 16);
 420                 image_size = INT_MAX;           /* actually we do not know the image size */
 421         } else if (getenv("fileaddr") != NULL) {
 422                 addr = (void *)getenv_ulong("fileaddr", 16, 0);
 423                 image_size = getenv_ulong("filesize", 16, INT_MAX);
 424         } else {
 425                 return CMD_RET_USAGE;
 426         }
 427
 428         printf ("## Booting Windows CE Image from address %p ...\n", addr);
 429
 430         /* check if there is a valid windows CE image */
 431         if (ce_is_bin_image(addr, image_size)) {
 432                 if (!ce_bin_load(addr, image_size)) {
 433                         /* Ops! Corrupted .BIN image! */
 434                         /* Handle error here ...      */
 435                         printf("corrupted .BIN image !!!\n");
 436                         return CMD_RET_FAILURE;
 437                 }
 438                 if (getenv_yesno("autostart") != 1) {
 439                         /*
 440                          * just use bootce to load the image to SDRAM;
 441                          * Do not start it automatically.
 442                          */
 443                         setenv_addr("fileaddr", g_bin.eEntryPoint);
 444                         return CMD_RET_SUCCESS;
 445                 }
 446                 ce_run_bin(g_bin.eEntryPoint);          /* start the image */
 447         } else {
 448                 printf("Image does not seem to be a valid Windows CE image!\n");
 449                 return CMD_RET_FAILURE;
 450         }
 451         return CMD_RET_FAILURE; /* never reached - just to keep compiler happy */
 452 }
 453 U_BOOT_CMD(
 454         bootce, 2, 0, do_bootce,
 455         "Boot a Windows CE image from RAM",
 456         "[addr]\n"
 457         "\taddr\t\tboot image from address addr (default ${fileaddr})"
 458 );
 459
 460 #ifdef CONFIG_CMD_NAND
 461 static int ce_nand_load(ce_bin *bin, loff_t *offset, void *buf, size_t max_len)
 462 {
 463         int ret;
 464         size_t len = max_len;
 465         nand_info_t *nand = &nand_info[0];
 466
 467         while (nand_block_isbad(nand, *offset & ~(max_len - 1))) {
 468                 printf("Skipping bad block 0x%08llx\n",
 469                         *offset & ~(max_len - 1));
 470                 *offset += max_len;
 471                 if (*offset + max_len > nand->size)
 472                         return -EINVAL;
 473         }
 474
 475         ret = nand_read(nand, *offset, &len, buf);
 476         if (ret < 0)
 477                 return ret;
 478
 479         bin->dataLen = len;
 480         return len;
 481 }
 482
 483 static int do_nbootce(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 484 {
 485         int ret;
 486         struct mtd_device *dev;
 487         struct part_info *part_info;
 488         u8 part_num;
 489         loff_t offset;
 490         char *end;
 491         void *buffer;
 492         size_t bufsize = nand_info[0].erasesize, len;
 493
 494         if (argc < 2 || argc > 3)
 495                 return CMD_RET_USAGE;
 496
 497         ret = mtdparts_init();
 498         if (ret)
 499                 return CMD_RET_FAILURE;
 500
 501         offset = simple_strtoul(argv[1], &end, 16);
 502         if (*end != '\0') {
 503                 ret = find_dev_and_part(argv[1], &dev, &part_num,
 504                                         &part_info);
 505                 if (ret != 0) {
 506                         printf("Partition '%s' not found\n", argv[1]);
 507                         return CMD_RET_FAILURE;
 508                 }
 509                 offset = part_info->offset;
 510                 printf ("## Booting Windows CE Image from NAND partition %s at offset %08llx\n",
 511                         argv[1], offset);
 512         } else {
 513                 printf ("## Booting Windows CE Image from NAND offset %08llx\n",
 514                         offset);
 515         }
 516
 517         buffer = malloc(bufsize);
 518         if (buffer == NULL) {
 519                 printf("Failed to allocate %u byte buffer\n", bufsize);
 520                 return CMD_RET_FAILURE;
 521         }
 522
 523         ce_init_bin(&g_bin, buffer);
 524
 525         ret = ce_nand_load(&g_bin, &offset, buffer, bufsize);
 526         if (ret < 0) {
 527                 printf("Failed to read NAND: %d\n", ret);
 528                 goto err;
 529         }
 530         len = ret;
 531         /* check if there is a valid windows CE image header */
 532         if (ce_is_bin_image(buffer, len)) {
 533                 do {
 534                         ret = ce_parse_bin(&g_bin);
 535                         switch (ret) {
 536                         case CE_PR_MORE:
 537                         {
 538                                 if (ctrlc()) {
 539                                         printf("NBOOTCE - canceled by user\n");
 540                                         goto err;
 541                                 }
 542                                 offset += len;
 543                                 len = ce_nand_load(&g_bin, &offset, buffer,
 544                                                 bufsize);
 545                                 if (len < 0) {
 546                                         printf("Nand read error: %d\n", len);
 547                                         ret = len;
 548                                         goto err;
 549                                 }
 550                         }
 551                         break;
 552
 553                         case CE_PR_EOF:
 554                                 ce_prepare_run_bin(&g_bin);
 555                                 break;
 556
 557                         case CE_PR_ERROR:
 558                                 break;
 559                         }
 560                 } while (ret == CE_PR_MORE);
 561                 free(buffer);
 562                 if (ret != CE_PR_EOF)
 563                         return CMD_RET_FAILURE;
 564
 565                 if (getenv_yesno("autostart") != 1) {
 566                         /*
 567                          * just use bootce to load the image to SDRAM;
 568                          * Do not start it automatically.
 569                          */
 570                         setenv_addr("fileaddr", g_bin.eEntryPoint);
 571                         return CMD_RET_SUCCESS;
 572                 }
 573                 ce_run_bin(g_bin.eEntryPoint);          /* start the image */
 574         } else {
 575                 printf("Image does not seem to be a valid Windows CE image!\n");
 576         }
 577 err:
 578         free(buffer);
 579         return CMD_RET_FAILURE;
 580 }
 581 U_BOOT_CMD(
 582         nbootce, 2, 0, do_nbootce,
 583         "Boot a Windows CE image from NAND",
 584         "off|partitition\n"
 585         "\toff\t\t- flash offset (hex)\n"
 586         "\tpartition\t- partition name"
 587 );
 588 #endif
 589
 590 static int ce_send_write_ack(ce_net *net)
 591 {
 592         int ret;
 593         unsigned short wdata[2];
 594         int retries = 0;
 595
 596         wdata[0] = htons(EDBG_CMD_WRITE_ACK);
 597         wdata[1] = htons(net->blockNum);
 598         net->dataLen = sizeof(wdata);
 599         memcpy(net->data, wdata, net->dataLen);
 600
 601         do {
 602                 ret = bootme_send_frame(net->data, net->dataLen);
 603                 if (ret) {
 604                         printf("Failed to send write ack %d; retries=%d\n",
 605                                 ret, retries);
 606                 }
 607         } while (ret != 0 && retries-- > 0);
 608         return ret;
 609 }
 610
 611 static enum bootme_state ce_process_download(ce_net *net, ce_bin *bin)
 612 {
 613         int ret = net->state;
 614
 615         if (net->dataLen >= 4) {
 616                 unsigned short command;
 617                 unsigned short blknum;
 618
 619                 memcpy(&command, net->data, sizeof(command));
 620                 command = ntohs(command);
 621                 debug("command found: 0x%04X\n", command);
 622
 623                 if (net->state == BOOTME_DOWNLOAD) {
 624                         unsigned short nxt = net->blockNum + 1;
 625
 626                         memcpy(&blknum, &net->data[2], sizeof(blknum));
 627                         blknum = ntohs(blknum);
 628                         if (blknum == nxt) {
 629                                 net->blockNum = blknum;
 630                         } else {
 631                                 int rc = ce_send_write_ack(net);
 632
 633                                 if (net->verbose)
 634                                         printf("Dropping out of sequence packet with ID %d (expected %d)\n",
 635                                                 blknum, nxt);
 636                                 if (rc != 0)
 637                                         return rc;
 638
 639                                 return ret;
 640                         }
 641                 }
 642
 643                 switch (command) {
 644                 case EDBG_CMD_WRITE_REQ:
 645                         if (net->state == BOOTME_INIT) {
 646                                 // Check file name for WRITE request
 647                                 // CE EShell uses "boot.bin" file name
 648                                 if (strncmp((char *)&net->data[2],
 649                                                 "boot.bin", 8) == 0) {
 650                                         // Some diag output
 651                                         if (net->verbose) {
 652                                                 printf("Locked Down download link, IP: %pI4\n",
 653                                                         &NetServerIP);
 654                                                 printf("Sending BOOTME request [%d] to %pI4\n",
 655                                                         net->seqNum, &NetServerIP);
 656                                         }
 657
 658                                         // Lock down EShell download link
 659                                         ret = BOOTME_DOWNLOAD;
 660                                 } else {
 661                                         // Unknown link
 662                                         printf("Unknown link\n");
 663                                 }
 664
 665                                 if (ret == BOOTME_DOWNLOAD) {
 666                                         int rc = ce_send_write_ack(net);
 667                                         if (rc != 0)
 668                                                 return rc;
 669                                 }
 670                         }
 671                         break;
 672
 673                 case EDBG_CMD_WRITE:
 674                         /* Fixup data len */
 675                         bin->data = &net->data[4];
 676                         bin->dataLen = net->dataLen - 4;
 677                         ret = ce_parse_bin(bin);
 678                         if (ret != CE_PR_ERROR) {
 679                                 int rc = ce_send_write_ack(net);
 680                                 if (rc)
 681                                         return rc;
 682                                 if (ret == CE_PR_EOF)
 683                                         ret = BOOTME_DONE;
 684                         } else {
 685                                 ret = BOOTME_ERROR;
 686                         }
 687                         break;
 688
 689                 case EDBG_CMD_READ_REQ:
 690                         printf("Ignoring EDBG_CMD_READ_REQ\n");
 691                         /* Read requests are not supported
 692                          * Do nothing ...
 693                          */
 694                         break;
 695
 696                 case EDBG_CMD_ERROR:
 697                         printf("Error: unknown error on the host side\n");
 698
 699                         bin->binLen = 0;
 700                         ret = BOOTME_ERROR;
 701                         break;
 702
 703                 default:
 704                         printf("unknown command 0x%04X\n", command);
 705                         net->state = BOOTME_ERROR;
 706                 }
 707         }
 708         return ret;
 709 }
 710
 711 static enum bootme_state ce_process_edbg(ce_net *net, ce_bin *bin)
 712 {
 713         enum bootme_state ret = net->state;
 714         eth_dbg_hdr header;
 715
 716         if (net->dataLen < sizeof(header)) {
 717                 /* Bad packet */
 718                 printf("Invalid packet size %u\n", net->dataLen);
 719                 net->dataLen = 0;
 720                 return ret;
 721         }
 722         memcpy(&header, net->data, sizeof(header));
 723         if (header.id != EDBG_ID) {
 724                 /* Bad packet */
 725                 printf("Bad EDBG ID %08x\n", header.id);
 726                 net->dataLen = 0;
 727                 return ret;
 728         }
 729
 730         if (header.service != EDBG_SVC_ADMIN) {
 731                 /* Unknown service */
 732                 printf("Bad EDBG service %02x\n", header.service);
 733                 net->dataLen = 0;
 734                 return ret;
 735         }
 736
 737         if (net->state == BOOTME_INIT) {
 738                 /* Some diag output */
 739                 if (net->verbose) {
 740                         printf("Locked Down EDBG service link, IP: %pI4\n",
 741                                 &NetServerIP);
 742                 }
 743
 744                 /* Lock down EDBG link */
 745                 net->state = BOOTME_DEBUG;
 746         }
 747
 748         switch (header.cmd) {
 749         case EDBG_CMD_JUMPIMG:
 750                 net->gotJumpingRequest = 1;
 751
 752                 if (net->verbose) {
 753                         printf("Received JUMPING command\n");
 754                 }
 755                 /* Just pass through and copy CONFIG structure */
 756                 ret = BOOTME_DONE;
 757         case EDBG_CMD_OS_CONFIG:
 758                 /* Copy config structure */
 759                 memcpy(&bin->edbgConfig, &net->data[sizeof(header)],
 760                         sizeof(edbg_os_config_data));
 761                 if (net->verbose) {
 762                         printf("Received CONFIG command\n");
 763                         if (bin->edbgConfig.flags & EDBG_FL_DBGMSG) {
 764                                 printf("--> Enabling DBGMSG service, IP: %pI4, port: %d\n",
 765                                         &bin->edbgConfig.dbgMsgIPAddr,
 766                                         ntohs(bin->edbgConfig.dbgMsgPort));
 767                         }
 768
 769                         if (bin->edbgConfig.flags & EDBG_FL_PPSH) {
 770                                 printf("--> Enabling PPSH service, IP: %pI4, port: %d\n",
 771                                         &bin->edbgConfig.ppshIPAddr,
 772                                         ntohs(bin->edbgConfig.ppshPort));
 773                         }
 774
 775                         if (bin->edbgConfig.flags & EDBG_FL_KDBG) {
 776                                 printf("--> Enabling KDBG service, IP: %pI4, port: %d\n",
 777                                         &bin->edbgConfig.kdbgIPAddr,
 778                                         ntohs(bin->edbgConfig.kdbgPort));
 779                         }
 780
 781                         if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
 782                                 printf("--> Force clean boot\n");
 783                         }
 784                 }
 785                 break;
 786
 787         default:
 788                 if (net->verbose) {
 789                         printf("Received unknown command: %08X\n", header.cmd);
 790                 }
 791                 return BOOTME_ERROR;
 792         }
 793
 794         /* Respond with ack */
 795         header.flags = EDBG_FL_FROM_DEV | EDBG_FL_ACK;
 796         memcpy(net->data, &header, sizeof(header));
 797         net->dataLen = EDBG_DATA_OFFSET;
 798
 799         int retries = 10;
 800         int rc;
 801         do {
 802                 rc = bootme_send_frame(net->data, net->dataLen);
 803                 if (rc != 0) {
 804                         printf("Failed to send ACK: %d\n", rc);
 805                 }
 806         } while (rc && retries-- > 0);
 807         return rc ?: ret;
 808 }
 809
 810 static enum bootme_state ce_edbg_handler(const void *buf, size_t len)
 811 {
 812         if (len == 0)
 813                 return BOOTME_DONE;
 814
 815         g_net.data = (void *)buf;
 816         g_net.dataLen = len;
 817
 818         return ce_process_edbg(&g_net, &g_bin);
 819 }
 820
 821 static void ce_init_edbg_link(ce_net *net)
 822 {
 823         /* Initialize EDBG link for commands */
 824         net->state = BOOTME_INIT;
 825 }
 826
 827 static enum bootme_state ce_download_handler(const void *buf, size_t len)
 828 {
 829         g_net.data = (void *)buf;
 830         g_net.dataLen = len;
 831
 832         g_net.state = ce_process_download(&g_net, &g_bin);
 833         return g_net.state;
 834 }
 835
 836 static int ce_send_bootme(ce_net *net)
 837 {
 838         eth_dbg_hdr *header;
 839         edbg_bootme_data *data;
 840         unsigned char txbuf[PKTSIZE_ALIGN];
 841 #ifdef DEBUG
 842         int     i;
 843         unsigned char   *pkt;
 844 #endif
 845         /* Fill out BOOTME packet */
 846         net->data = txbuf;
 847
 848         memset(net->data, 0, PKTSIZE);
 849         header = (eth_dbg_hdr *)net->data;
 850         data = (edbg_bootme_data *)header->data;
 851
 852         header->id = EDBG_ID;
 853         header->service = EDBG_SVC_ADMIN;
 854         header->flags = EDBG_FL_FROM_DEV;
 855         header->seqNum = net->seqNum++;
 856         header->cmd = EDBG_CMD_BOOTME;
 857
 858         data->versionMajor = 0;
 859         data->versionMinor = 0;
 860         data->cpuId = EDBG_CPU_TYPE_ARM;
 861         data->bootmeVer = EDBG_CURRENT_BOOTME_VERSION;
 862         data->bootFlags = 0;
 863         data->downloadPort = 0;
 864         data->svcPort = 0;
 865
 866         /* MAC address from environment*/
 867         if (!eth_getenv_enetaddr("ethaddr", data->macAddr)) {
 868                 printf("'ethaddr' is not set or invalid\n");
 869                 memset(data->macAddr, 0, sizeof(data->macAddr));
 870         }
 871
 872         /* IP address from active config */
 873         NetCopyIP(&data->ipAddr, &NetOurIP);
 874
 875         // Device name string (NULL terminated). Should include
 876         // platform and number based on Ether address (e.g. Odo42, CEPCLS2346, etc)
 877
 878         // We will use lower MAC address segment to create device name
 879         // eg. MAC '00-0C-C6-69-09-05', device name 'Triton05'
 880
 881         strncpy(data->platformId, "Triton", sizeof(data->platformId));
 882         snprintf(data->deviceName, sizeof(data->deviceName), "%s%02X",
 883                 data->platformId, data->macAddr[5]);
 884
 885 #ifdef DEBUG
 886         printf("header->id: %08X\n", header->id);
 887         printf("header->service: %08X\n", header->service);
 888         printf("header->flags: %08X\n", header->flags);
 889         printf("header->seqNum: %08X\n", header->seqNum);
 890         printf("header->cmd: %08X\n\n", header->cmd);
 891
 892         printf("data->versionMajor: %08X\n", data->versionMajor);
 893         printf("data->versionMinor: %08X\n", data->versionMinor);
 894         printf("data->cpuId: %08X\n", data->cpuId);
 895         printf("data->bootmeVer: %08X\n", data->bootmeVer);
 896         printf("data->bootFlags: %08X\n", data->bootFlags);
 897         printf("data->svcPort: %08X\n\n", ntohs(data->svcPort));
 898
 899         printf("data->macAddr: %pM\n", data->macAddr);
 900         printf("data->ipAddr: %pI4\n", &data->ipAddr);
 901         printf("data->platformId: %s\n", data->platformId);
 902         printf("data->deviceName: %s\n", data->deviceName);
 903 #endif
 904         // Some diag output ...
 905         if (net->verbose) {
 906                 printf("Sending BOOTME request [%d] to %pI4\n", net->seqNum,
 907                         &server_ip);
 908         }
 909
 910         net->dataLen = BOOTME_PKT_SIZE;
 911 //      net->status = CE_PR_MORE;
 912         net->state = BOOTME_INIT;
 913 #ifdef DEBUG
 914         debug("Start of buffer:      %p\n", net->data);
 915         debug("Start of ethernet buffer:   %p\n", net->data);
 916         debug("Start of CE header:         %p\n", header);
 917         debug("Start of CE data:           %p\n", data);
 918
 919         pkt = net->data;
 920         debug("packet to send (ceconnect): \n");
 921         for (i = 0; i < net->dataLen; i++) {
 922                 debug("0x%02X ", pkt[i]);
 923                 if (!((i + 1) % 16))
 924                         debug("\n");
 925         }
 926         debug("\n");
 927 #endif
 928         return BootMeRequest(server_ip, net->data, net->dataLen, 1);
 929 }
 930
 931 static inline int ce_init_download_link(ce_net *net, ce_bin *bin, int verbose)
 932 {
 933         if (!eth_get_dev()) {
 934                 printf("No network interface available\n");
 935                 return -ENODEV;
 936         }
 937         printf("Using device '%s'\n", eth_get_name());
 938
 939         /* Initialize EDBG link for download */
 940         memset(net, 0, sizeof(*net));
 941
 942         net->verbose = verbose;
 943
 944         /* buffer will be dynamically assigned in ce_download_handler() */
 945         ce_init_bin(bin, NULL);
 946         return 0;
 947 }
 948
 949 #define UINT_MAX ~0UL
 950
 951 static inline int ce_download_file(ce_net *net, ulong timeout)
 952 {
 953         ulong start = get_timer_masked();
 954
 955         while (net->state == BOOTME_INIT) {
 956                 int ret;
 957
 958                 if (timeout && get_timer(start) > timeout) {
 959                         printf("CELOAD - Canceled, timeout\n");
 960                         return 1;
 961                 }
 962
 963                 if (ctrlc()) {
 964                         printf("CELOAD - canceled by user\n");
 965                         return 1;
 966                 }
 967
 968                 if (ce_send_bootme(&g_net)) {
 969                         printf("CELOAD - error while sending BOOTME request\n");
 970                         return 1;
 971                 }
 972                 if (net->verbose) {
 973                         if (timeout) {
 974                                 printf("Waiting for connection, timeout %lu sec\n",
 975                                         DIV_ROUND_UP(timeout - get_timer(start),
 976                                                 CONFIG_SYS_HZ));
 977                         } else {
 978                                 printf("Waiting for connection, enter ^C to abort\n");
 979                         }
 980                 }
 981
 982                 ret = BootMeDownload(ce_download_handler);
 983                 if (ret == BOOTME_ERROR) {
 984                         printf("CELOAD - aborted\n");
 985                         return 1;
 986                 }
 987         }
 988         return 0;
 989 }
 990
 991 static void ce_disconnect(void)
 992 {
 993         net_set_udp_handler(NULL);
 994         eth_halt();
 995 }
 996
 997 static int do_ceconnect(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 998 {
 999         int verbose = 0;
1000         ulong timeout = 0;
1001         int ret = 1;
1002         int i;
1003
1004         server_ip = 0;
1005
1006         for (i = 1; i < argc; i++){
1007                 if (*argv[i] != '-')
1008                         break;
1009                 if (argv[i][1] == 'v') {
1010                         verbose = 1;
1011                 } else if (argv[i][1] == 't') {
1012                         i++;
1013                         if (argc > i) {
1014                                 timeout = simple_strtoul(argv[i],
1015                                                         NULL, 0);
1016                                 if (timeout >= UINT_MAX / CONFIG_SYS_HZ) {
1017                                         printf("Timeout value %lu out of range (max.: %lu)\n",
1018                                                 timeout, UINT_MAX / CONFIG_SYS_HZ - 1);
1019                                         return CMD_RET_USAGE;
1020                                 }
1021                                 timeout *= CONFIG_SYS_HZ;
1022                         } else {
1023                                 printf("Option requires an argument - t\n");
1024                                 return CMD_RET_USAGE;
1025                         }
1026                 } else if (argv[i][1] == 'h') {
1027                         i++;
1028                         if (argc > i) {
1029                                 server_ip = string_to_ip(argv[i]);
1030                                 printf("Using server %pI4\n", &server_ip);
1031                         } else {
1032                                 printf("Option requires an argument - h\n");
1033                                 return CMD_RET_USAGE;
1034                         }
1035                 }
1036         }
1037
1038         if (ce_init_download_link(&g_net, &g_bin, verbose) != 0)
1039                 goto err;
1040
1041         if (ce_download_file(&g_net, timeout))
1042                 goto err;
1043
1044         if (g_bin.binLen) {
1045                 // Try to receive edbg commands from host
1046                 ce_init_edbg_link(&g_net);
1047                 if (verbose)
1048                         printf("Waiting for EDBG commands ...\n");
1049
1050                 ret = BootMeDebugStart(ce_edbg_handler);
1051                 if (ret != BOOTME_DONE)
1052                         goto err;
1053
1054                 // Prepare WinCE image for execution
1055                 ce_prepare_run_bin(&g_bin);
1056
1057                 // Launch WinCE, if necessary
1058                 if (g_net.gotJumpingRequest)
1059                         ce_run_bin(g_bin.eEntryPoint);
1060         }
1061         ret = 0;
1062 err:
1063         ce_disconnect();
1064         return ret == 0 ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
1065 }
1066 U_BOOT_CMD(
1067         ceconnect, 6, 1, do_ceconnect,
1068         "Set up a connection to the CE host PC over TCP/IP and download the run-time image",
1069         "[-v] [-t <timeout>] [-h host]\n"
1070         "  -v            - verbose operation\n"
1071         "  -t <timeout>  - max wait time (#sec) for the connection\n"
1072         "  -h <host>     - send BOOTME requests to <host> (default: broadcast address 255.255.255.255)"
1073 );