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 #define _STRMAC(s)              #s
  54 #define STRMAC(s)               _STRMAC(s)
  55
  56 static ce_bin __attribute__ ((aligned (32))) g_bin;
  57 static ce_net __attribute__ ((aligned (32))) g_net;
  58 static IPaddr_t server_ip;
  59
  60 static void ce_init_bin(ce_bin *bin, unsigned char *dataBuffer)
  61 {
  62         memset(bin, 0, sizeof(*bin));
  63
  64         bin->data = dataBuffer;
  65         bin->parseState = CE_PS_RTI_ADDR;
  66         bin->parsePtr = (unsigned char *)bin;
  67 }
  68
  69 static int ce_is_bin_image(void *image, int imglen)
  70 {
  71         if (imglen < CE_BIN_SIGN_LEN) {
  72                 return 0;
  73         }
  74
  75         return memcmp(image, CE_BIN_SIGN, CE_BIN_SIGN_LEN) == 0;
  76 }
  77
  78 static const struct ce_magic {
  79         char magic[8];
  80         size_t size;
  81         ce_std_driver_globals drv_glb;
  82 } ce_magic_template = {
  83         .magic = "KARO_CE6",
  84         .size = sizeof(ce_std_driver_globals),
  85         .drv_glb = {
  86                 .header = {
  87                         .signature = STD_DRV_GLB_SIGNATURE,
  88                         .oalVersion = 1,
  89                         .bspVersion = 2,
  90                 },
  91         },
  92 };
  93
  94 #ifdef DEBUG
  95 static void __attribute__((unused)) ce_dump_block(void *ptr, int length)
  96 {
  97         char *p = ptr;
  98         int i;
  99         int j;
 100
 101         for (i = 0; i < length; i++) {
 102                 if (!(i % 16)) {
 103                         printf("\n%p: ", ptr + i);
 104                 }
 105
 106                 printf("%02x ", p[i]);
 107                 if (!((i + 1) % 16)){
 108                         printf("      ");
 109                         for (j = i - 15; j <= i; j++){
 110                                 if((p[j] > 0x1f) && (p[j] < 0x7f)) {
 111                                         printf("%c", p[j]);
 112                                 } else {
 113                                         printf(".");
 114                                 }
 115                         }
 116                 }
 117         }
 118         printf("\n");
 119 }
 120 #else
 121 static inline void ce_dump_block(void *ptr, int length)
 122 {
 123 }
 124 #endif
 125
 126 static void ce_setup_std_drv_globals(ce_std_driver_globals *std_drv_glb)
 127 {
 128         char *mtdparts = getenv("mtdparts");
 129         size_t max_len = ALIGN((unsigned long)std_drv_glb, SZ_4K) -
 130                 (unsigned long)&std_drv_glb->mtdparts;
 131
 132         if (eth_get_dev()) {
 133                 memcpy(&std_drv_glb->kitl.mac, eth_get_dev()->enetaddr,
 134                         sizeof(std_drv_glb->kitl.mac));
 135         }
 136         snprintf(std_drv_glb->deviceId, sizeof(std_drv_glb->deviceId),
 137                 "Triton%02X", eth_get_dev()->enetaddr[5]);
 138
 139         NetCopyIP(&std_drv_glb->kitl.ipAddress, &NetOurIP);
 140         std_drv_glb->kitl.ipMask = getenv_IPaddr("netmask");
 141         std_drv_glb->kitl.ipRoute = getenv_IPaddr("gatewayip");
 142
 143         if (mtdparts) {
 144                 strncpy(std_drv_glb->mtdparts, mtdparts, max_len);
 145                 std_drv_glb->mtdparts[max_len - 1] = '\0';
 146         } else {
 147                 printf("Failed to get mtdparts environment variable\n");
 148         }
 149 }
 150
 151 static void ce_prepare_run_bin(ce_bin *bin)
 152 {
 153         ce_driver_globals *drv_glb;
 154         struct ce_magic *ce_magic = (void *)CONFIG_SYS_SDRAM_BASE + 0x160;
 155         ce_std_driver_globals *std_drv_glb = &ce_magic->drv_glb;
 156
 157         /* Clear os RAM area (if needed) */
 158         if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
 159                 debug("cleaning memory from %p to %p\n",
 160                         bin->eRamStart, bin->eRamStart + bin->eRamLen);
 161
 162                 printf("Preparing clean boot ... ");
 163                 memset(bin->eRamStart, 0, bin->eRamLen);
 164                 printf("ok\n");
 165         }
 166
 167         /* Prepare driver globals (if needed) */
 168         if (bin->eDrvGlb) {
 169                 debug("Copying CE MAGIC from %p to %p..%p\n",
 170                         &ce_magic_template, ce_magic,
 171                         (void *)ce_magic + sizeof(*ce_magic) - 1);
 172                 memcpy(ce_magic, &ce_magic_template, sizeof(*ce_magic));
 173
 174                 ce_setup_std_drv_globals(std_drv_glb);
 175                 ce_magic->size = sizeof(*std_drv_glb) +
 176                         strlen(std_drv_glb->mtdparts) + 1;
 177                 ce_dump_block(ce_magic, offsetof(struct ce_magic, drv_glb) +
 178                         ce_magic->size);
 179
 180                 drv_glb = bin->eDrvGlb;
 181                 memset(drv_glb, 0, sizeof(*drv_glb));
 182
 183                 drv_glb->signature = DRV_GLB_SIGNATURE;
 184
 185                 /* Local ethernet MAC address */
 186                 memcpy(drv_glb->macAddr, std_drv_glb->kitl.mac,
 187                         sizeof(drv_glb->macAddr));
 188                 debug("got MAC address %02x:%02x:%02x:%02x:%02x:%02x from environment\n",
 189                         drv_glb->macAddr[0], drv_glb->macAddr[1],
 190                         drv_glb->macAddr[2], drv_glb->macAddr[3],
 191                         drv_glb->macAddr[4], drv_glb->macAddr[5]);
 192
 193                 /* Local IP address */
 194                 drv_glb->ipAddr = getenv_IPaddr("ipaddr");
 195
 196                 /* Subnet mask */
 197                 drv_glb->ipMask = getenv_IPaddr("netmask");
 198
 199                 /* Gateway config */
 200                 drv_glb->ipGate = getenv_IPaddr("gatewayip");
 201 #ifdef DEBUG
 202                 debug("got IP address %pI4 from environment\n", &drv_glb->ipAddr);
 203                 debug("got IP mask %pI4 from environment\n", &drv_glb->ipMask);
 204                 debug("got gateway address %pI4 from environment\n", &drv_glb->ipGate);
 205 #endif
 206                 /* EDBG services config */
 207                 memcpy(&drv_glb->edbgConfig, &bin->edbgConfig,
 208                         sizeof(bin->edbgConfig));
 209         }
 210
 211         /*
 212          * Make sure, all the above makes it into SDRAM because
 213          * WinCE switches the cache & MMU off, obviously without
 214          * flushing it first!
 215          */
 216         flush_dcache_all();
 217 }
 218
 219 static int ce_lookup_ep_bin(ce_bin *bin)
 220 {
 221         ce_rom_hdr *header;
 222         ce_toc_entry *tentry;
 223         e32_rom *e32;
 224         unsigned int i;
 225         uint32_t *sig = (uint32_t *)(bin->rtiPhysAddr + ROM_SIGNATURE_OFFSET);
 226
 227         debug("Looking for TOC signature at %p\n", sig);
 228
 229         /* Check image Table Of Contents (TOC) signature */
 230         if (*sig != ROM_SIGNATURE) {
 231                 printf("Error: Did not find image TOC signature!\n");
 232                 printf("Expected %08x at address %p; found %08x instead\n",
 233                         ROM_SIGNATURE, sig, *sig);
 234                 return 0;
 235         }
 236
 237         /* Lookup entry point */
 238         header = CE_FIX_ADDRESS(*(unsigned int *)(bin->rtiPhysAddr +
 239                                                 ROM_SIGNATURE_OFFSET +
 240                                                 sizeof(unsigned int)));
 241         tentry = (ce_toc_entry *)(header + 1);
 242
 243         for (i = 0; i < header->nummods; i++) {
 244                 // Look for 'nk.exe' module
 245                 if (strcmp(CE_FIX_ADDRESS(tentry[i].fileName), "nk.exe") == 0) {
 246                         // Save entry point and RAM addresses
 247
 248                         e32 = CE_FIX_ADDRESS(tentry[i].e32Offset);
 249
 250                         bin->eEntryPoint = CE_FIX_ADDRESS(tentry[i].loadOffset) +
 251                                 e32->e32_entryrva;
 252                         bin->eRamStart = CE_FIX_ADDRESS(header->ramStart);
 253                         bin->eRamLen = header->ramEnd - header->ramStart;
 254                         // Save driver_globals address
 255                         // Must follow RAM section in CE config.bib file
 256                         //
 257                         // eg.
 258                         //
 259                         // RAM          80900000        03200000        RAM
 260                         // DRV_GLB      83B00000        00001000        RESERVED
 261                         //
 262                         bin->eDrvGlb = CE_FIX_ADDRESS(header->ramEnd);
 263                         return 1;
 264                 }
 265         }
 266
 267         // Error: Did not find 'nk.exe' module
 268         return 0;
 269 }
 270
 271 static int ce_parse_bin(ce_bin *bin)
 272 {
 273         unsigned char *pbData = bin->data;
 274         int len = bin->dataLen;
 275         int copyLen;
 276
 277         debug("starting ce image parsing:\n\tbin->binLen: 0x%08X\n", bin->binLen);
 278
 279         if (len) {
 280                 if (bin->binLen == 0) {
 281                         // Check for the .BIN signature first
 282                         if (!ce_is_bin_image(pbData, len)) {
 283                                 printf("Error: Invalid or corrupted .BIN image!\n");
 284                                 return CE_PR_ERROR;
 285                         }
 286
 287                         printf("Loading Windows CE .BIN image ...\n");
 288                         // Skip signature
 289                         len -= CE_BIN_SIGN_LEN;
 290                         pbData += CE_BIN_SIGN_LEN;
 291                 }
 292
 293                 while (len) {
 294                         switch (bin->parseState) {
 295                         case CE_PS_RTI_ADDR:
 296                         case CE_PS_RTI_LEN:
 297                         case CE_PS_E_ADDR:
 298                         case CE_PS_E_LEN:
 299                         case CE_PS_E_CHKSUM:
 300                                 copyLen = CE_MIN(sizeof(unsigned int) - bin->parseLen, len);
 301                                 memcpy(&bin->parsePtr[bin->parseLen], pbData, copyLen);
 302
 303                                 bin->parseLen += copyLen;
 304                                 len -= copyLen;
 305                                 pbData += copyLen;
 306
 307                                 if (bin->parseLen == sizeof(unsigned int)) {
 308                                         if (bin->parseState == CE_PS_RTI_ADDR)
 309                                                 bin->rtiPhysAddr = CE_FIX_ADDRESS(bin->rtiPhysAddr);
 310                                         else if (bin->parseState == CE_PS_E_ADDR &&
 311                                                 bin->ePhysAddr)
 312                                                 bin->ePhysAddr = CE_FIX_ADDRESS(bin->ePhysAddr);
 313
 314                                         bin->parseState++;
 315                                         bin->parseLen = 0;
 316                                         bin->parsePtr += sizeof(unsigned int);
 317
 318                                         if (bin->parseState == CE_PS_E_DATA) {
 319                                                 if (bin->ePhysAddr) {
 320                                                         bin->parsePtr = bin->ePhysAddr;
 321                                                         bin->parseChkSum = 0;
 322                                                 } else {
 323                                                         /* EOF */
 324                                                         len = 0;
 325                                                         bin->endOfBin = 1;
 326                                                 }
 327                                         }
 328                                 }
 329                                 break;
 330
 331                         case CE_PS_E_DATA:
 332                                 debug("ePhysAddr=%p physlen=%08x parselen=%08x\n",
 333                                         bin->ePhysAddr, bin->ePhysLen, bin->parseLen);
 334                                 if (bin->ePhysAddr) {
 335                                         copyLen = CE_MIN(bin->ePhysLen - bin->parseLen, len);
 336                                         bin->parseLen += copyLen;
 337                                         len -= copyLen;
 338
 339                                         while (copyLen--) {
 340                                                 bin->parseChkSum += *pbData;
 341                                                 *bin->parsePtr++ = *pbData++;
 342                                         }
 343
 344                                         if (bin->parseLen == bin->ePhysLen) {
 345                                                 printf("Section [%02d]: address %p, size 0x%08X, checksum %s\n",
 346                                                         bin->section,
 347                                                         bin->ePhysAddr,
 348                                                         bin->ePhysLen,
 349                                                         (bin->eChkSum == bin->parseChkSum) ? "ok" : "fail");
 350
 351                                                 if (bin->eChkSum != bin->parseChkSum) {
 352                                                         printf("Error: Checksum error, corrupted .BIN file!\n");
 353                                                         printf("checksum calculated: 0x%08x from file: 0x%08x\n",
 354                                                                 bin->parseChkSum, bin->eChkSum);
 355                                                         bin->binLen = 0;
 356                                                         return CE_PR_ERROR;
 357                                                 }
 358
 359                                                 bin->section++;
 360                                                 bin->parseState = CE_PS_E_ADDR;
 361                                                 bin->parseLen = 0;
 362                                                 bin->parsePtr = (unsigned char *)&bin->ePhysAddr;
 363                                         }
 364                                 } else {
 365                                         bin->parseLen = 0;
 366                                         bin->endOfBin = 1;
 367                                         len = 0;
 368                                 }
 369                                 break;
 370                         }
 371                 }
 372         }
 373
 374         if (bin->endOfBin) {
 375                 if (!ce_lookup_ep_bin(bin)) {
 376                         printf("Error: entry point not found!\n");
 377                         bin->binLen = 0;
 378                         return CE_PR_ERROR;
 379                 }
 380
 381                 printf("Entry point: %p, address range: %p-%p\n",
 382                         bin->eEntryPoint,
 383                         bin->rtiPhysAddr,
 384                         bin->rtiPhysAddr + bin->rtiPhysLen);
 385
 386                 return CE_PR_EOF;
 387         }
 388
 389         /* Need more data */
 390         bin->binLen += bin->dataLen;
 391         return CE_PR_MORE;
 392 }
 393
 394 static int ce_bin_load(void *image, int imglen)
 395 {
 396         ce_init_bin(&g_bin, image);
 397         g_bin.dataLen = imglen;
 398         if (ce_parse_bin(&g_bin) == CE_PR_EOF) {
 399                 ce_prepare_run_bin(&g_bin);
 400                 return 1;
 401         }
 402
 403         return 0;
 404 }
 405
 406 static void ce_run_bin(void (*entry)(void))
 407 {
 408         printf("Launching Windows CE ...\n");
 409 #ifdef TEST_LAUNCH
 410 return;
 411 #endif
 412         entry();
 413 }
 414
 415 static int do_bootce(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 416 {
 417         void *addr;
 418         size_t image_size;
 419
 420         if (argc > 1) {
 421                 addr = (void *)simple_strtoul(argv[1], NULL, 16);
 422                 image_size = INT_MAX;           /* actually we do not know the image size */
 423         } else if (getenv("fileaddr") != NULL) {
 424                 addr = (void *)getenv_ulong("fileaddr", 16, 0);
 425                 image_size = getenv_ulong("filesize", 16, INT_MAX);
 426         } else {
 427                 return CMD_RET_USAGE;
 428         }
 429
 430         printf ("## Booting Windows CE Image from address %p ...\n", addr);
 431
 432         /* check if there is a valid windows CE image */
 433         if (ce_is_bin_image(addr, image_size)) {
 434                 if (!ce_bin_load(addr, image_size)) {
 435                         /* Ops! Corrupted .BIN image! */
 436                         /* Handle error here ...      */
 437                         printf("corrupted .BIN image !!!\n");
 438                         return CMD_RET_FAILURE;
 439                 }
 440                 if (getenv_yesno("autostart") != 1) {
 441                         /*
 442                          * just use bootce to load the image to SDRAM;
 443                          * Do not start it automatically.
 444                          */
 445                         setenv_addr("fileaddr", g_bin.eEntryPoint);
 446                         return CMD_RET_SUCCESS;
 447                 }
 448                 ce_run_bin(g_bin.eEntryPoint);          /* start the image */
 449         } else {
 450                 printf("Image does not seem to be a valid Windows CE image!\n");
 451                 return CMD_RET_FAILURE;
 452         }
 453         return CMD_RET_FAILURE; /* never reached - just to keep compiler happy */
 454 }
 455 U_BOOT_CMD(
 456         bootce, 2, 0, do_bootce,
 457         "Boot a Windows CE image from RAM\n",
 458         "[addr]\n"
 459         "\taddr\t\tboot image from address addr (default ${fileaddr})\n"
 460 );
 461
 462 static int ce_nand_load(ce_bin *bin, loff_t *offset, void *buf, size_t max_len)
 463 {
 464         int ret;
 465         size_t len = max_len;
 466         nand_info_t *nand = &nand_info[0];
 467
 468         while (nand_block_isbad(nand, *offset & ~(max_len - 1))) {
 469                 printf("Skipping bad block 0x%08llx\n",
 470                         *offset & ~(max_len - 1));
 471                 *offset += max_len;
 472                 if (*offset + max_len > nand->size)
 473                         return -EINVAL;
 474         }
 475
 476         ret = nand_read(nand, *offset, &len, buf);
 477         if (ret < 0)
 478                 return ret;
 479
 480         bin->dataLen = len;
 481         return len;
 482 }
 483
 484 static int do_nbootce(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 485 {
 486         int ret;
 487         struct mtd_device *dev;
 488         struct part_info *part_info;
 489         u8 part_num;
 490         loff_t offset;
 491         char *end;
 492         void *buffer;
 493         size_t bufsize = nand_info[0].erasesize, len;
 494
 495         if (argc < 2 || argc > 3)
 496                 return CMD_RET_USAGE;
 497
 498         ret = mtdparts_init();
 499         if (ret)
 500                 return CMD_RET_FAILURE;
 501
 502         offset = simple_strtoul(argv[1], &end, 16);
 503         if (*end != '\0') {
 504                 ret = find_dev_and_part(argv[1], &dev, &part_num,
 505                                         &part_info);
 506                 if (ret != 0) {
 507                         printf("Partition '%s' not found\n", argv[1]);
 508                         return CMD_RET_FAILURE;
 509                 }
 510                 offset = part_info->offset;
 511                 printf ("## Booting Windows CE Image from NAND partition %s at offset %08llx\n",
 512                         argv[1], offset);
 513         } else {
 514                 printf ("## Booting Windows CE Image from NAND offset %08llx\n",
 515                         offset);
 516         }
 517
 518         buffer = malloc(bufsize);
 519         if (buffer == NULL) {
 520                 printf("Failed to allocate %u byte buffer\n", bufsize);
 521                 return CMD_RET_FAILURE;
 522         }
 523
 524         ce_init_bin(&g_bin, buffer);
 525
 526         ret = ce_nand_load(&g_bin, &offset, buffer, bufsize);
 527         if (ret < 0) {
 528                 printf("Failed to read NAND: %d\n", ret);
 529                 goto err;
 530         }
 531         len = ret;
 532         /* check if there is a valid windows CE image header */
 533         if (ce_is_bin_image(buffer, len)) {
 534                 do {
 535                         ret = ce_parse_bin(&g_bin);
 536                         switch (ret) {
 537                         case CE_PR_MORE:
 538                         {
 539                                 if (ctrlc()) {
 540                                         printf("NBOOTCE - canceled by user\n");
 541                                         goto err;
 542                                 }
 543                                 offset += len;
 544                                 len = ce_nand_load(&g_bin, &offset, buffer,
 545                                                 bufsize);
 546                                 if (len < 0) {
 547                                         printf("Nand read error: %d\n", len);
 548                                         ret = len;
 549                                         goto err;
 550                                 }
 551                         }
 552                         break;
 553
 554                         case CE_PR_EOF:
 555                         case CE_PR_ERROR:
 556                                 break;
 557                         }
 558                 } while (ret == CE_PR_MORE);
 559                 if (ret != CE_PR_EOF)
 560                         return CMD_RET_FAILURE;
 561
 562                 free(buffer);
 563                 if (getenv_yesno("autostart") != 1) {
 564                         /*
 565                          * just use bootce to load the image to SDRAM;
 566                          * Do not start it automatically.
 567                          */
 568                         setenv_addr("fileaddr", g_bin.eEntryPoint);
 569                         return CMD_RET_SUCCESS;
 570                 }
 571                 ce_run_bin(g_bin.eEntryPoint);          /* start the image */
 572         } else {
 573                 printf("Image does not seem to be a valid Windows CE image!\n");
 574         }
 575 err:
 576         free(buffer);
 577         return CMD_RET_FAILURE;
 578 }
 579 U_BOOT_CMD(
 580         nbootce, 2, 0, do_nbootce,
 581         "Boot a Windows CE image from NAND\n",
 582         "off|partitition\n"
 583         "\toff\t\t- flash offset (hex)\n"
 584         "\tpartition\t- partition name\n"
 585 );
 586
 587 static int ce_send_write_ack(ce_net *net)
 588 {
 589         int ret;
 590         unsigned short wdata[2];
 591         int retries = 0;
 592
 593         wdata[0] = htons(EDBG_CMD_WRITE_ACK);
 594         wdata[1] = htons(net->blockNum);
 595         net->dataLen = sizeof(wdata);
 596         memcpy(net->data, wdata, net->dataLen);
 597
 598         do {
 599                 ret = bootme_send_frame(net->data, net->dataLen);
 600                 if (ret) {
 601                         printf("Failed to send write ack %d; retries=%d\n",
 602                                 ret, retries);
 603                 }
 604         } while (ret != 0 && retries-- > 0);
 605         return ret;
 606 }
 607
 608 static enum bootme_state ce_process_download(ce_net *net, ce_bin *bin)
 609 {
 610         int ret = net->state;
 611
 612         if (net->dataLen >= 4) {
 613                 unsigned short command;
 614                 unsigned short blknum;
 615
 616                 memcpy(&command, net->data, sizeof(command));
 617                 command = ntohs(command);
 618                 debug("command found: 0x%04X\n", command);
 619
 620                 if (net->state == BOOTME_DOWNLOAD) {
 621                         unsigned short nxt = net->blockNum + 1;
 622
 623                         memcpy(&blknum, &net->data[2], sizeof(blknum));
 624                         blknum = ntohs(blknum);
 625                         if (blknum == nxt) {
 626                                 net->blockNum = blknum;
 627                         } else {
 628                                 int rc = ce_send_write_ack(net);
 629
 630                                 printf("Dropping out of sequence packet with ID %d (expected %d)\n",
 631                                         blknum, nxt);
 632                                 if (rc != 0)
 633                                         return rc;
 634
 635                                 return ret;
 636                         }
 637                 }
 638
 639                 switch (command) {
 640                 case EDBG_CMD_WRITE_REQ:
 641                         if (net->state == BOOTME_INIT) {
 642                                 // Check file name for WRITE request
 643                                 // CE EShell uses "boot.bin" file name
 644                                 if (strncmp((char *)&net->data[2],
 645                                                 "boot.bin", 8) == 0) {
 646                                         // Some diag output
 647                                         if (net->verbose) {
 648                                                 printf("Locked Down download link, IP: %pI4\n",
 649                                                         &NetServerIP);
 650                                                 printf("Sending BOOTME request [%d] to %pI4\n",
 651                                                         net->seqNum, &NetServerIP);
 652                                         }
 653
 654                                         // Lock down EShell download link
 655                                         ret = BOOTME_DOWNLOAD;
 656                                 } else {
 657                                         // Unknown link
 658                                         printf("Unknown link\n");
 659                                 }
 660
 661                                 if (ret == BOOTME_DOWNLOAD) {
 662                                         int rc = ce_send_write_ack(net);
 663                                         if (rc != 0)
 664                                                 return rc;
 665                                 }
 666                         }
 667                         break;
 668
 669                 case EDBG_CMD_WRITE:
 670                         /* Fixup data len */
 671                         bin->data = &net->data[4];
 672                         bin->dataLen = net->dataLen - 4;
 673                         ret = ce_parse_bin(bin);
 674                         if (ret != CE_PR_ERROR) {
 675                                 int rc = ce_send_write_ack(net);
 676                                 if (rc)
 677                                         return rc;
 678                                 if (ret == CE_PR_EOF)
 679                                         ret = BOOTME_DONE;
 680                         } else {
 681                                 ret = BOOTME_ERROR;
 682                         }
 683                         break;
 684
 685                 case EDBG_CMD_READ_REQ:
 686                         printf("Ignoring EDBG_CMD_READ_REQ\n");
 687                         /* Read requests are not supported
 688                          * Do nothing ...
 689                          */
 690                         break;
 691
 692                 case EDBG_CMD_ERROR:
 693                         printf("Error: unknown error on the host side\n");
 694
 695                         bin->binLen = 0;
 696                         ret = BOOTME_ERROR;
 697                         break;
 698
 699                 default:
 700                         printf("unknown command 0x%04X\n", command);
 701                         net->state = BOOTME_ERROR;
 702                 }
 703         }
 704         return ret;
 705 }
 706
 707 static enum bootme_state ce_process_edbg(ce_net *net, ce_bin *bin)
 708 {
 709         enum bootme_state ret = net->state;
 710         eth_dbg_hdr header;
 711
 712         if (net->dataLen < sizeof(header)) {
 713                 /* Bad packet */
 714                 printf("Invalid packet size %u\n", net->dataLen);
 715                 net->dataLen = 0;
 716                 return ret;
 717         }
 718         memcpy(&header, net->data, sizeof(header));
 719         if (header.id != EDBG_ID) {
 720                 /* Bad packet */
 721                 printf("Bad EDBG ID %08x\n", header.id);
 722                 net->dataLen = 0;
 723                 return ret;
 724         }
 725
 726         if (header.service != EDBG_SVC_ADMIN) {
 727                 /* Unknown service */
 728                 printf("Bad EDBG service %02x\n", header.service);
 729                 net->dataLen = 0;
 730                 return ret;
 731         }
 732
 733         if (net->state == BOOTME_INIT) {
 734                 /* Some diag output */
 735                 if (net->verbose) {
 736                         printf("Locked Down EDBG service link, IP: %pI4\n",
 737                                 &NetServerIP);
 738                 }
 739
 740                 /* Lock down EDBG link */
 741                 net->state = BOOTME_DEBUG;
 742         }
 743
 744 debug("%s@%d\n", __func__, __LINE__);
 745         switch (header.cmd) {
 746         case EDBG_CMD_JUMPIMG:
 747 debug("%s@%d\n", __func__, __LINE__);
 748                 net->gotJumpingRequest = 1;
 749
 750                 if (net->verbose) {
 751                         printf("Received JUMPING command\n");
 752                 }
 753                 /* Just pass through and copy CONFIG structure */
 754         case EDBG_CMD_OS_CONFIG:
 755 debug("%s@%d\n", __func__, __LINE__);
 756                 /* Copy config structure */
 757                 memcpy(&bin->edbgConfig, header.data,
 758                         sizeof(edbg_os_config_data));
 759                 if (net->verbose) {
 760                         printf("Received CONFIG command\n");
 761                         if (bin->edbgConfig.flags & EDBG_FL_DBGMSG) {
 762                                 printf("--> Enabling DBGMSG service, IP: %d.%d.%d.%d, port: %d\n",
 763                                         (bin->edbgConfig.dbgMsgIPAddr >> 0) & 0xFF,
 764                                         (bin->edbgConfig.dbgMsgIPAddr >> 8) & 0xFF,
 765                                         (bin->edbgConfig.dbgMsgIPAddr >> 16) & 0xFF,
 766                                         (bin->edbgConfig.dbgMsgIPAddr >> 24) & 0xFF,
 767                                         ntohs(bin->edbgConfig.dbgMsgPort));
 768                         }
 769
 770                         if (bin->edbgConfig.flags & EDBG_FL_PPSH) {
 771                                 printf("--> Enabling PPSH service, IP: %d.%d.%d.%d, port: %d\n",
 772                                         (bin->edbgConfig.ppshIPAddr >> 0) & 0xFF,
 773                                         (bin->edbgConfig.ppshIPAddr >> 8) & 0xFF,
 774                                         (bin->edbgConfig.ppshIPAddr >> 16) & 0xFF,
 775                                         (bin->edbgConfig.ppshIPAddr >> 24) & 0xFF,
 776                                         ntohs(bin->edbgConfig.ppshPort));
 777                         }
 778
 779                         if (bin->edbgConfig.flags & EDBG_FL_KDBG) {
 780                                 printf("--> Enabling KDBG service, IP: %d.%d.%d.%d, port: %d\n",
 781                                         (bin->edbgConfig.kdbgIPAddr >> 0) & 0xFF,
 782                                         (bin->edbgConfig.kdbgIPAddr >> 8) & 0xFF,
 783                                         (bin->edbgConfig.kdbgIPAddr >> 16) & 0xFF,
 784                                         (bin->edbgConfig.kdbgIPAddr >> 24) & 0xFF,
 785                                         ntohs(bin->edbgConfig.kdbgPort));
 786                         }
 787
 788                         if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
 789                                 printf("--> Force clean boot\n");
 790                         }
 791                 }
 792                 ret = BOOTME_DEBUG;
 793                 break;
 794
 795         default:
 796                 if (net->verbose) {
 797                         printf("Received unknown command: %08X\n", header.cmd);
 798                 }
 799                 return BOOTME_ERROR;
 800         }
 801
 802         /* Respond with ack */
 803         header.flags = EDBG_FL_FROM_DEV | EDBG_FL_ACK;
 804         net->dataLen = EDBG_DATA_OFFSET;
 805 debug("%s@%d: sending packet %p len %u\n", __func__, __LINE__,
 806         net->data, net->dataLen);
 807         bootme_send_frame(net->data, net->dataLen);
 808         return ret;
 809 }
 810
 811 static enum bootme_state ce_edbg_handler(const void *buf, size_t len)
 812 {
 813         if (len == 0)
 814                 return BOOTME_DONE;
 815
 816         g_net.data = (void *)buf;
 817         g_net.dataLen = len;
 818
 819         return ce_process_edbg(&g_net, &g_bin);
 820 }
 821
 822 static void ce_init_edbg_link(ce_net *net)
 823 {
 824         /* Initialize EDBG link for commands */
 825         net->state = BOOTME_INIT;
 826 }
 827
 828 static enum bootme_state ce_download_handler(const void *buf, size_t len)
 829 {
 830         g_net.data = (void *)buf;
 831         g_net.dataLen = len;
 832
 833         g_net.state = ce_process_download(&g_net, &g_bin);
 834         return g_net.state;
 835 }
 836
 837 static int ce_send_bootme(ce_net *net)
 838 {
 839         eth_dbg_hdr *header;
 840         edbg_bootme_data *data;
 841         unsigned char txbuf[PKTSIZE_ALIGN];
 842 #ifdef DEBUG
 843         int     i;
 844         unsigned char   *pkt;
 845 #endif
 846         /* Fill out BOOTME packet */
 847         net->data = txbuf;
 848
 849         memset(net->data, 0, PKTSIZE);
 850         header = (eth_dbg_hdr *)net->data;
 851         data = (edbg_bootme_data *)header->data;
 852
 853         header->id = EDBG_ID;
 854         header->service = EDBG_SVC_ADMIN;
 855         header->flags = EDBG_FL_FROM_DEV;
 856         header->seqNum = net->seqNum++;
 857         header->cmd = EDBG_CMD_BOOTME;
 858
 859         data->versionMajor = 0;
 860         data->versionMinor = 0;
 861         data->cpuId = EDBG_CPU_TYPE_ARM;
 862         data->bootmeVer = EDBG_CURRENT_BOOTME_VERSION;
 863         data->bootFlags = 0;
 864         data->downloadPort = 0;
 865         data->svcPort = 0;
 866
 867         /* MAC address from environment*/
 868         if (!eth_getenv_enetaddr("ethaddr", data->macAddr)) {
 869                 printf("'ethaddr' is not set or invalid\n");
 870                 memset(data->macAddr, 0, sizeof(data->macAddr));
 871         }
 872
 873         /* IP address from active config */
 874         NetCopyIP(&data->ipAddr, &NetOurIP);
 875
 876         // Device name string (NULL terminated). Should include
 877         // platform and number based on Ether address (e.g. Odo42, CEPCLS2346, etc)
 878
 879         // We will use lower MAC address segment to create device name
 880         // eg. MAC '00-0C-C6-69-09-05', device name 'Triton05'
 881
 882         strncpy(data->platformId, "Triton", sizeof(data->platformId));
 883         snprintf(data->deviceName, sizeof(data->deviceName), "%s%02X",
 884                 data->platformId, data->macAddr[5]);
 885
 886 #ifdef DEBUG
 887         printf("header->id: %08X\r\n", header->id);
 888         printf("header->service: %08X\r\n", header->service);
 889         printf("header->flags: %08X\r\n", header->flags);
 890         printf("header->seqNum: %08X\r\n", header->seqNum);
 891         printf("header->cmd: %08X\r\n\r\n", header->cmd);
 892
 893         printf("data->versionMajor: %08X\r\n", data->versionMajor);
 894         printf("data->versionMinor: %08X\r\n", data->versionMinor);
 895         printf("data->cpuId: %08X\r\n", data->cpuId);
 896         printf("data->bootmeVer: %08X\r\n", data->bootmeVer);
 897         printf("data->bootFlags: %08X\r\n", data->bootFlags);
 898         printf("data->svcPort: %08X\r\n\r\n", ntohs(data->svcPort));
 899
 900         printf("data->macAddr: %02X-%02X-%02X-%02X-%02X-%02X\r\n",
 901                 data->macAddr[0], data->macAddr[1],
 902                 data->macAddr[2], data->macAddr[3],
 903                 data->macAddr[4], data->macAddr[5]);
 904
 905         printf("data->ipAddr: %d.%d.%d.%d\r\n",
 906                 (data->ipAddr >> 0) & 0xFF,
 907                 (data->ipAddr >> 8) & 0xFF,
 908                 (data->ipAddr >> 16) & 0xFF,
 909                 (data->ipAddr >> 24) & 0xFF);
 910
 911         printf("data->platformId: %s\r\n", data->platformId);
 912
 913         printf("data->deviceName: %s\r\n", data->deviceName);
 914 #endif
 915         // Some diag output ...
 916         if (net->verbose) {
 917                 printf("Sending BOOTME request [%d] to %pI4\n", net->seqNum,
 918                         &server_ip);
 919         }
 920
 921         net->dataLen = BOOTME_PKT_SIZE;
 922 //      net->status = CE_PR_MORE;
 923         net->state = BOOTME_INIT;
 924 #ifdef DEBUG
 925         debug("Start of buffer:      %p\n", net->data);
 926         debug("Start of ethernet buffer:   %p\n", net->data);
 927         debug("Start of CE header:         %p\n", header);
 928         debug("Start of CE data:           %p\n", data);
 929
 930         pkt = net->data;
 931         debug("packet to send (ceconnect): \n");
 932         for (i = 0; i < net->dataLen; i++) {
 933                 debug("0x%02X ", pkt[i]);
 934                 if (!((i + 1) % 16))
 935                         debug("\n");
 936         }
 937         debug("\n");
 938 #endif
 939         return BootMeRequest(server_ip, net->data, net->dataLen, 1);
 940 }
 941
 942 static inline int ce_init_download_link(ce_net *net, ce_bin *bin, int verbose)
 943 {
 944         if (!eth_get_dev()) {
 945                 printf("No network interface available\n");
 946                 return -ENODEV;
 947         }
 948         printf("Using device '%s'\n", eth_get_name());
 949
 950         /* Initialize EDBG link for download */
 951         memset(net, 0, sizeof(*net));
 952
 953         net->verbose = verbose;
 954
 955         /* buffer will be dynamically assigned in ce_download_handler() */
 956         ce_init_bin(bin, NULL);
 957         return 0;
 958 }
 959
 960 #define UINT_MAX ~0UL
 961
 962 static inline int ce_download_file(ce_net *net, ulong timeout)
 963 {
 964         ulong start = get_timer_masked();
 965
 966         while (net->state == BOOTME_INIT) {
 967                 int ret;
 968
 969                 if (timeout && get_timer(start) > timeout) {
 970                         printf("CELOAD - Canceled, timeout\n");
 971                         return 1;
 972                 }
 973
 974                 if (ctrlc()) {
 975                         printf("CELOAD - canceled by user\n");
 976                         return 1;
 977                 }
 978
 979                 if (ce_send_bootme(&g_net)) {
 980                         printf("CELOAD - error while sending BOOTME request\n");
 981                         return 1;
 982                 }
 983                 if (net->verbose) {
 984                         if (timeout) {
 985                                 printf("Waiting for connection, timeout %lu sec\n",
 986                                         DIV_ROUND_UP(timeout - get_timer(start),
 987                                                 CONFIG_SYS_HZ));
 988                         } else {
 989                                 printf("Waiting for connection, enter ^C to abort\n");
 990                         }
 991                 }
 992
 993                 ret = BootMeDownload(ce_download_handler);
 994                 if (ret == BOOTME_ERROR) {
 995                         printf("CELOAD - aborted\n");
 996                         return 1;
 997                 }
 998         }
 999         return 0;
1000 }
1001
1002 static void ce_disconnect(void)
1003 {
1004         net_set_udp_handler(NULL);
1005         eth_halt();
1006 }
1007
1008 static int do_ceconnect(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
1009 {
1010         int verbose = 0;
1011         ulong timeout = 0;
1012         int ret = 1;
1013         int i;
1014
1015         server_ip = 0;
1016
1017         for (i = 1; i < argc; i++){
1018                 if (*argv[i] != '-')
1019                         break;
1020                 if (argv[i][1] == 'v') {
1021                         verbose = 1;
1022                 } else if (argv[i][1] == 't') {
1023                         i++;
1024                         if (argc > i) {
1025                                 timeout = simple_strtoul(argv[i],
1026                                                         NULL, 10);
1027                                 if (timeout >= UINT_MAX / CONFIG_SYS_HZ) {
1028                                         printf("Timeout value %lu out of range (max.: %lu)\n",
1029                                                 timeout, UINT_MAX / CONFIG_SYS_HZ - 1);
1030                                         return CMD_RET_USAGE;
1031                                 }
1032                                 timeout *= CONFIG_SYS_HZ;
1033                         } else {
1034                                 printf("Option requires an argument - t\n");
1035                                 return CMD_RET_USAGE;
1036                         }
1037                 } else if (argv[i][1] == 'h') {
1038                         i++;
1039                         if (argc > i) {
1040                                 server_ip = string_to_ip(argv[i]);
1041                                 printf("Using server %pI4\n", &server_ip);
1042                         } else {
1043                                 printf("Option requires an argument - t\n");
1044                                 return CMD_RET_USAGE;
1045                         }
1046                 }
1047         }
1048
1049         if (ce_init_download_link(&g_net, &g_bin, verbose) != 0)
1050                 goto err;
1051
1052         if (ce_download_file(&g_net, timeout))
1053                 goto err;
1054
1055         if (g_bin.binLen) {
1056                 // Try to receive edbg commands from host
1057                 ce_init_edbg_link(&g_net);
1058                 if (verbose)
1059                         printf("Waiting for EDBG commands ...\n");
1060
1061                 ret = BootMeDebugStart(ce_edbg_handler);
1062                 if (ret != BOOTME_DONE)
1063                         goto err;
1064
1065                 // Prepare WinCE image for execution
1066                 ce_prepare_run_bin(&g_bin);
1067
1068                 // Launch WinCE, if necessary
1069                 if (g_net.gotJumpingRequest)
1070                         ce_run_bin(g_bin.eEntryPoint);
1071         }
1072         ret = 0;
1073 err:
1074         ce_disconnect();
1075         return ret == 0 ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
1076 }
1077 U_BOOT_CMD(
1078         ceconnect, 6, 1, do_ceconnect,
1079         "Set up a connection to the CE host PC over TCP/IP and download the run-time image\n",
1080         "[-v] [-t <timeout>] [-h host]\n"
1081         "  -v            - verbose operation\n"
1082         "  -t <timeout>  - max wait time (#sec) for the connection\n"
1083         "  -h <host>     - send BOOTME requests to <host> (default: broadcast address 255.255.255.255)"
1084 );