common/cmd_usbd.c

   1 /*
   2  * USB Downloader for SAMSUNG Platform
   3  *
   4  * Copyright (C) 2007-2008 Samsung Electronics
   5  * Minkyu Kang <mk7.kang@samsung.com>
   6  *
   7  */
   8
   9 #include <common.h>
  10 #include <usbd.h>
  11 #include <asm/errno.h>
  12 #include <malloc.h>
  13
  14 /* version of USB Downloader Application */
  15 #define APP_VERSION     "1.4.1"
  16
  17 #define OPS_READ        0
  18 #define OPS_WRITE       1
  19
  20 #ifdef CONFIG_CMD_MTDPARTS
  21 #include <jffs2/load_kernel.h>
  22 static struct part_info *parts[16];
  23 #endif
  24
  25 static const char pszMe[] = "usbd: ";
  26
  27 static struct usbd_ops usbd_ops;
  28
  29 static unsigned int part_id;
  30 static unsigned int write_part = 0;
  31 static unsigned long fs_offset = 0x0;
  32
  33 #ifdef CONFIG_USE_YAFFS
  34 static unsigned int yaffs_len = 0;
  35 static unsigned char yaffs_data[2112];
  36 #define YAFFS_PAGE 2112
  37 #endif
  38
  39 #define NAND_PAGE_SIZE 2048
  40
  41 static unsigned long down_ram_addr;
  42
  43 static int down_mode;
  44
  45 /* cpu/${CPU} dependent */
  46 extern void do_reset(void);
  47
  48 /* common commands */
  49 extern int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  50 extern int do_run(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  51
  52 int mtdparts_init(void);
  53 int find_dev_and_part(const char*, struct mtd_device**, u8*, struct part_info**);
  54
  55 /* common/cmd_jffs2.c */
  56 extern struct list_head devices;
  57
  58 static u8 count_mtdparts(void)
  59 {
  60         struct list_head *dentry, *pentry;
  61         struct mtd_device *dev;
  62         u8 part_num = 0;
  63
  64         list_for_each(dentry, &devices) {
  65                 dev = list_entry(dentry, struct mtd_device, link);
  66
  67                 /* list partitions for given device */
  68                 list_for_each(pentry, &dev->parts)
  69                         part_num++;
  70         }
  71
  72         return part_num;
  73 }
  74
  75 #ifdef CONFIG_CMD_UBI
  76 static int check_ubi_mode(void)
  77 {
  78         char *env_ubifs;
  79         int ubi_mode;
  80
  81         env_ubifs = getenv("ubi");
  82         ubi_mode = !strcmp(env_ubifs, "enabled");
  83
  84         return ubi_mode;
  85 }
  86 #else
  87 #define check_ubi_mode()                0
  88 #endif
  89
  90 #ifdef CONFIG_MTD_PARTITIONS
  91 static int get_part_info(void)
  92 {
  93         struct mtd_device *dev;
  94         u8 out_partnum;
  95         char part_name[12];
  96         char nand_name[12];
  97         int i;
  98         int part_num;
  99         int ubi_mode = 0;
 100
 101 #if defined(CONFIG_CMD_NAND)
 102         sprintf(nand_name, "nand0");
 103 #elif defined(CONFIG_CMD_ONENAND)
 104         sprintf(nand_name, "onenand0");
 105 #else
 106         printf("Configure your NAND sub-system\n");
 107         return 0;
 108 #endif
 109
 110         if (mtdparts_init())
 111                 return 0;
 112
 113         ubi_mode = check_ubi_mode();
 114
 115         part_num = count_mtdparts();
 116         for (i = 0; i < part_num; i++) {
 117                 sprintf(part_name, "%s,%d", nand_name, i);
 118
 119                 if (find_dev_and_part(part_name, &dev, &out_partnum, &parts[i]))
 120                         return -EINVAL;
 121         }
 122
 123         return 0;
 124 }
 125
 126 static int get_part_id(char *name)
 127 {
 128         int nparts = count_mtdparts();
 129         int i;
 130
 131         for (i = 0; i < nparts; i++) {
 132                 if (strcmp(parts[i]->name, name) == 0)
 133                         return i;
 134         }
 135
 136         printf("Error: Unknown partition -> %s\n", name);
 137         return -1;
 138 }
 139 #else
 140 static int get_part_info(void)
 141 {
 142         printf("Error: Can't get patition information\n");
 143         return -EINVAL;
 144 }
 145
 146 static int get_part_id(char *name)
 147 {
 148         return 0;
 149 }
 150 #endif
 151
 152 static void boot_cmd(char *addr)
 153 {
 154         char *argv[] = { "bootm", addr };
 155         do_bootm(NULL, 0, 2, argv);
 156 }
 157
 158 static void run_cmd(char *cmd)
 159 {
 160         char *argv[] = { "run", cmd };
 161         do_run(NULL, 0, 2, argv);
 162 }
 163
 164 #if defined(CONFIG_CMD_NAND)
 165 extern int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 166 #elif defined(CONFIG_CMD_ONENAND)
 167 extern int do_onenand(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 168 #endif
 169
 170 /* NAND erase and write using nand command */
 171 static int nand_cmd(int type, char *p1, char *p2, char *p3)
 172 {
 173         int ret = 1;
 174         char nand_name[12];
 175         int (*nand_func) (cmd_tbl_t *, int, int, char **);
 176
 177 #if defined(CONFIG_CMD_NAND)
 178         sprintf(nand_name, "nand");
 179         nand_func = do_nand;
 180 #elif defined(CONFIG_CMD_ONENAND)
 181         sprintf(nand_name, "onenand");
 182         nand_func = do_onenand;
 183 #else
 184         printf("Configure your NAND sub-system\n");
 185         return 0;
 186 #endif
 187
 188         if (type == 0) {
 189                 char *argv[] = {nand_name, "erase", p1, p2};
 190                 printf("%s %s %s %s\n", argv[0], argv[1], argv[2], argv[3]);
 191                 ret = nand_func(NULL, 0, 4, argv);
 192         } else if (type == 1) {
 193                 char *argv[] = {nand_name, "write", p1, p2, p3};
 194                 printf("%s %s %s %s %s\n", argv[0], argv[1], argv[2],
 195                                 argv[3], argv[4]);
 196                 ret = nand_func(NULL, 0, 5, argv);
 197         } else if (type == 2) {
 198                 char *argv[] = {nand_name, "write.yaffs", p1, p2, p3};
 199                 printf("%s %s %s %s %s\n", argv[0], argv[1], argv[2],
 200                                 argv[3], argv[4]);
 201                 ret = nand_func(NULL, 0, 5, argv);
 202         }
 203
 204         if (ret)
 205                 printf("Error: NAND Command\n");
 206
 207         return ret;
 208 }
 209
 210 #ifdef CONFIG_CMD_UBI
 211 int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 212
 213 int ubi_cmd(int part, char *p1, char *p2, char *p3)
 214 {
 215         int ret = 1;
 216
 217         if (part == RAMDISK_PART_ID) {
 218                 char *argv[] = {"ubi", "write", p1, "rootfs.cramfs", p2, p3};
 219                 printf("%s %s %s %s %s %s\n", argv[0], argv[1], argv[2],
 220                                 argv[3], argv[4], argv[5]);
 221                 ret = do_ubi(NULL, 0, 6, argv);
 222         } else if (part == FILESYSTEM_PART_ID) {
 223                 char *argv[] = {"ubi", "write", p1, "factoryfs.cramfs", p2, p3};
 224                 printf("%s %s %s %s %s %s\n", argv[0], argv[1], argv[2],
 225                                 argv[3], argv[4], argv[5]);
 226                 ret = do_ubi(NULL, 0, 6, argv);
 227         } else if (part == FILESYSTEM2_PART_ID) {
 228                 char *argv[] = {"ubi", "write", p1, "datafs.ubifs", p2, p3};
 229                 printf("%s %s %s %s %s %s\n", argv[0], argv[1], argv[2],
 230                                 argv[3], argv[4], argv[5]);
 231                 ret = do_ubi(NULL, 0, 6, argv);
 232         }
 233
 234         return ret;
 235 }
 236 #endif
 237
 238 #ifdef CONFIG_CMD_MMC
 239 #include <fat.h>
 240
 241 extern int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 242
 243 static int mmc_cmd(int ops, char *p1, char *p2, char *p3)
 244 {
 245         int ret;
 246
 247         if (ops) {
 248                 char *argv[] = {"mmc", "write", "0", p1, p2, p3};
 249                 ret = do_mmcops(NULL, 0, 6, argv);
 250         } else {
 251                 char *argv[] = {"mmc", "read", "0", p1, p2, p3};
 252                 ret = do_mmcops(NULL, 0, 6, argv);
 253         }
 254
 255         return ret;
 256 }
 257
 258 static unsigned int cur_blk_offset;
 259 static unsigned int cur_part_size;
 260 static unsigned int cur_partition;
 261
 262 static unsigned int mmc_parts;
 263 static unsigned int mmc_part_write;
 264
 265 struct partition_info {
 266         u32 size;
 267         u32 checksum;
 268         u32 res;
 269 } __attribute__((packed));
 270
 271 struct partition_header {
 272         u8                      fat32head[16];  /* RFSHEAD identifier */
 273         struct partition_info   partition[4];
 274         u8                      res[448];       /* reserved */
 275 } __attribute__((packed));
 276
 277 struct partition_table {
 278         u8      boot_flag;
 279         u8      chs_begin[3];
 280         u8      type_code;
 281         u8      chs_end[3];
 282         u32     lba_begin;
 283         u32     num_sectors;
 284 } __attribute__((packed));
 285
 286 struct mbr_table {
 287         u8                      boot_code[446];
 288         struct partition_table  partition[4];
 289         u16                     signature;
 290 } __attribute__((packed));
 291
 292 #define MBR_OFFSET      0x10
 293
 294 struct partition_header part_info;
 295 struct mbr_table mbr_info;
 296
 297 static int write_mmc_partition(struct usbd_ops *usbd, u32 *ram_addr, u32 len)
 298 {
 299         unsigned int blocks;
 300         char offset[12], length[12], ramaddr[12];
 301         int i;
 302         int loop;
 303         u32 cnt;
 304         int ret;
 305
 306         if (cur_part_size > len) {
 307                 blocks = len / usbd->mmc_blk;
 308                 ret = -1;
 309         } else {
 310                 blocks = cur_part_size / usbd->mmc_blk;
 311                 ret = len - cur_part_size;
 312         }
 313
 314         if (len % usbd->mmc_blk)
 315                 blocks++;
 316
 317         loop = blocks / usbd->mmc_max;
 318         if (blocks % usbd->mmc_max)
 319                 loop++;
 320
 321         for (i = 0; i < loop; i++) {
 322                 if (i == 0) {
 323                         cnt = blocks % usbd->mmc_max;
 324                         if (cnt == 0)
 325                                 cnt = usbd->mmc_max;
 326                 } else {
 327                         cnt = usbd->mmc_max;
 328                 }
 329
 330                 sprintf(length, "%x", cnt);
 331                 sprintf(offset, "%x", cur_blk_offset);
 332                 sprintf(ramaddr, "0x%x", *ram_addr);
 333                 mmc_cmd(OPS_WRITE, ramaddr, offset, length);
 334
 335                 cur_blk_offset += cnt;
 336
 337                 *ram_addr += (cnt * usbd->mmc_blk);
 338         }
 339
 340         return ret;
 341 }
 342
 343 static int write_file_mmc(struct usbd_ops *usbd, char *ramaddr, u32 len,
 344                 char *offset, char *length)
 345 {
 346         u32 ram_addr;
 347         int i;
 348         int ret;
 349
 350         if (!usbd->mmc_total) {
 351                 printf("MMC is not supported!\n");
 352                 return 0;
 353         }
 354
 355         ram_addr = (u32)down_ram_addr;
 356
 357         if (cur_blk_offset == 0) {
 358                 boot_sector *bs;
 359                 struct mbr_table *mbr;
 360
 361                 memcpy(&part_info, (void *)ram_addr,
 362                                 sizeof(struct partition_header));
 363
 364                 ram_addr += sizeof(struct partition_header);
 365                 len -= sizeof(struct partition_header);
 366                 mbr = (struct mbr_table*)ram_addr;
 367
 368                 /* modify sectors of p1 */
 369                 mbr->partition[0].num_sectors = usbd->mmc_total -
 370                                 (MBR_OFFSET +
 371                                 mbr->partition[1].num_sectors +
 372                                 mbr->partition[2].num_sectors +
 373                                 mbr->partition[3].num_sectors);
 374
 375                 mmc_parts++;
 376
 377                 /* modify lba_begin of p2 and p3 and p4 */
 378                 for (i = 1; i < 4; i++) {
 379                         if (part_info.partition[i].size == 0)
 380                                 break;
 381
 382                         mmc_parts++;
 383                         mbr->partition[i].lba_begin =
 384                                 mbr->partition[i - 1].lba_begin +
 385                                 mbr->partition[i - 1].num_sectors;
 386                 }
 387
 388                 /* copy MBR */
 389                 memcpy(&mbr_info, mbr, sizeof(struct mbr_table));
 390
 391                 printf("Total Size: 0x%08x #parts %d\n",
 392                                 (unsigned int)usbd->mmc_total, mmc_parts);
 393                 for (i = 0; i < mmc_parts; i++) {
 394                         printf("p%d\t0x%08x\t0x%08x\n", i + 1,
 395                                 mbr_info.partition[i].lba_begin,
 396                                 mbr_info.partition[i].num_sectors);
 397                 }
 398
 399                 /* write MBR */
 400                 sprintf(length, "%x", MBR_OFFSET);
 401                 sprintf(offset, "%x", 0);
 402                 sprintf(ramaddr, "0x%x", (u32)ram_addr);
 403                 ret = mmc_cmd(OPS_WRITE, ramaddr, offset, length);
 404
 405                 ram_addr += (MBR_OFFSET * usbd->mmc_blk);
 406                 len -= (MBR_OFFSET * usbd->mmc_blk);
 407
 408                 cur_blk_offset = MBR_OFFSET;
 409                 cur_partition = 0;
 410                 cur_part_size = part_info.partition[0].size;
 411
 412                 /* modify p1's total sector */
 413                 bs = (boot_sector *)ram_addr;
 414                 bs->total_sect = mbr_info.partition[0].num_sectors;
 415
 416                 printf("\nWrite Partition %d.. %d blocks\n",
 417                         cur_partition + 1,
 418                         part_info.partition[cur_partition].size /
 419                         (int)usbd->mmc_blk);
 420         }
 421
 422         for (i = cur_partition; i < mmc_parts; i++) {
 423                 ret = write_mmc_partition(usbd, &ram_addr, len);
 424
 425                 if (ret < 0) {
 426                         cur_part_size -= len;
 427                         break;
 428                 } else {
 429                         cur_partition++;
 430                         cur_part_size =
 431                                 part_info.partition[cur_partition].size;
 432                         cur_blk_offset =
 433                                 mbr_info.partition[cur_partition].lba_begin;
 434
 435                         if (ret == 0)
 436                                 break;
 437                         else
 438                                 len = ret;
 439
 440                         printf("\nWrite Partition %d.. %d blocks\n",
 441                                 cur_partition + 1,
 442                                 part_info.partition[cur_partition].size /
 443                                 (int)usbd->mmc_blk);
 444                 }
 445         }
 446
 447         return 0;
 448 }
 449
 450 static int write_file_mmc_part(struct usbd_ops *usbd, char *ramaddr, u32 len,
 451                 char *offset, char *length)
 452 {
 453         u32 ram_addr;
 454         int ret;
 455         int i;
 456
 457         ram_addr = (u32)down_ram_addr;
 458
 459         if (cur_blk_offset == 0) {
 460                 /* read MBR */
 461                 sprintf(length, "%x", MBR_OFFSET);
 462                 sprintf(offset, "%x", 0);
 463                 sprintf(ramaddr, "0x%x", (u32)&mbr_info);
 464                 ret = mmc_cmd(OPS_READ, ramaddr, offset, length);
 465
 466                 for (i = 0; i < 4; i++) {
 467                         printf("p%d\t0x%08x\t0x%08x\n", i + 1,
 468                                 mbr_info.partition[i].lba_begin,
 469                                 mbr_info.partition[i].num_sectors);
 470                 }
 471
 472                 cur_blk_offset = (unsigned int)
 473                         mbr_info.partition[mmc_part_write - 1].lba_begin;
 474                 cur_partition = mmc_part_write - 1;
 475                 cur_part_size = (unsigned int)len;
 476
 477                 if (mmc_part_write == 1) {
 478                         ram_addr += sizeof(boot_sector);
 479                         cur_blk_offset += sizeof(boot_sector) / usbd->mmc_blk;
 480                         len -= sizeof(boot_sector);
 481                 }
 482         }
 483
 484         printf("\nWrite Partition %d.. %d blocks\n",
 485                 cur_partition + 1,
 486                 len / (int)usbd->mmc_blk);
 487
 488         write_mmc_partition(usbd, &ram_addr, len);
 489
 490         return 0;
 491 }
 492 #endif
 493
 494 static int write_file_system(char *ramaddr, ulong len, char *offset,
 495                 char *length, int part_num, int ubi_update)
 496 {
 497 #ifdef CONFIG_USE_YAFFS
 498         int actual_len = 0;
 499         int yaffs_write = 0;
 500 #endif
 501         int ret = 0;
 502
 503 #ifdef CONFIG_CMD_UBI
 504         /* UBI Update */
 505         if (ubi_update) {
 506                 sprintf(length, "0x%x", (uint)len);
 507                 ret = ubi_cmd(part_id, ramaddr, length, "cont");
 508                 return ret;
 509         }
 510 #endif
 511
 512         /* Erase entire partition at the first writing */
 513         if (write_part == 0 && ubi_update == 0) {
 514                 sprintf(offset, "0x%x", (uint)parts[part_num]->offset);
 515                 sprintf(length, "0x%x", (uint)parts[part_num]->size);
 516                 nand_cmd(0, offset, length, NULL);
 517         }
 518
 519 #ifdef CONFIG_USE_YAFFS
 520         /* if using yaffs, wirte size must be 2112*X
 521          * so, must have to realloc, and writing */
 522         if (!strcmp("yaffs", getenv(parts[part_num]->name))) {
 523                 yaffs_write = 1;
 524
 525                 memcpy((void *)down_ram_addr, yaffs_data, yaffs_len);
 526
 527                 actual_len = len + yaffs_len;
 528                 yaffs_len = actual_len % YAFFS_PAGE;
 529                 len = actual_len - yaffs_len;
 530
 531                 memset(yaffs_data, 0x00, YAFFS_PAGE);
 532                 memcpy(yaffs_data, (char *)down_ram_addr + len, yaffs_len);
 533         }
 534 #endif
 535
 536         sprintf(offset, "0x%x", (uint)(parts[part_num]->offset + fs_offset));
 537         sprintf(length, "0x%x", (uint)len);
 538
 539 #ifdef CONFIG_USE_YAFFS
 540         if (yaffs_write)
 541                 ret = nand_cmd(2, ramaddr, offset, length);
 542         else
 543                 ret = nand_cmd(1, ramaddr, offset, length);
 544
 545         if (!strcmp("yaffs", getenv(parts[part_num]->name)))
 546                 fs_offset += len / YAFFS_PAGE * NAND_PAGE_SIZE;
 547         else
 548                 fs_offset += len;
 549
 550 #else
 551         fs_offset += len;
 552         ret = nand_cmd(1, ramaddr, offset, length);
 553 #endif
 554
 555         return ret;
 556 }
 557
 558 /* Parsing received data packet and Process data */
 559 static int process_data(struct usbd_ops *usbd)
 560 {
 561         ulong cmd = 0, arg = 0, len = 0, flag = 0;
 562         char offset[12], length[12], ramaddr[12];
 563         int recvlen = 0;
 564         unsigned int blocks = 0;
 565         int ret = 0;
 566         int ubi_update = 0;
 567         int ubi_mode = 0;
 568         int img_type;
 569
 570         sprintf(ramaddr, "0x%x", (uint) down_ram_addr);
 571
 572         /* Parse command */
 573         cmd  = *((ulong *) usbd->rx_data + 0);
 574         arg  = *((ulong *) usbd->rx_data + 1);
 575         len  = *((ulong *) usbd->rx_data + 2);
 576         flag = *((ulong *) usbd->rx_data + 3);
 577
 578         /* Reset tx buffer */
 579         memset(usbd->tx_data, 0, sizeof(usbd->tx_data));
 580
 581         ubi_mode = check_ubi_mode();
 582
 583         switch (cmd) {
 584         case COMMAND_DOWNLOAD_IMAGE:
 585                 printf("\nCOMMAND_DOWNLOAD_IMAGE\n");
 586
 587 #ifdef CONFIG_USE_YAFFS
 588                 usbd->recv_setup((char *)down_ram_addr + yaffs_len, (int)len);
 589                 printf("Download to 0x%08x, %d bytes\n",
 590                                 (uint)down_ram_addr + yaffs_len, (int)len);
 591 #else
 592                 usbd->recv_setup((char *)down_ram_addr, (int)len);
 593                 printf("Download to 0x%08x, %d bytes\n",
 594                                 (uint)down_ram_addr, (int)len);
 595 #endif
 596                 /* response */
 597                 usbd->send_data(usbd->tx_data, usbd->tx_len);
 598
 599                 /* Receive image by using dma */
 600                 recvlen = usbd->recv_data();
 601                 if (recvlen < len) {
 602                         printf("Error: wrong image size -> %d/%d\n",
 603                                         (int)recvlen, (int)len);
 604
 605                         /* Retry this commad */
 606                         *((ulong *) usbd->tx_data) = STATUS_RETRY;
 607                 } else
 608                         *((ulong *) usbd->tx_data) = STATUS_DONE;
 609
 610                 usbd->send_data(usbd->tx_data, usbd->tx_len);
 611                 return 1;
 612
 613         /* Report partition info */
 614         case COMMAND_PARTITION_SYNC:
 615                 part_id = arg;
 616
 617 #ifdef CONFIG_CMD_UBI
 618                 if (ubi_mode) {
 619                         if (part_id == RAMDISK_PART_ID ||
 620                             part_id == FILESYSTEM_PART_ID ||
 621                             part_id == FILESYSTEM2_PART_ID) {
 622                                 /* change to yaffs style */
 623                                 get_part_info();
 624                         }
 625                 } else {
 626                         if (part_id == FILESYSTEM3_PART_ID) {
 627                                 /* change ubi style */
 628                                 get_part_info();
 629                         }
 630                 }
 631 #endif
 632
 633                 if (part_id == FILESYSTEM3_PART_ID)
 634                         part_id = get_part_id("UBI");
 635                 else if (part_id == MODEM_PART_ID)
 636                         part_id = get_part_id("modem");
 637                 else if (part_id == KERNEL_PART_ID)
 638                         part_id = get_part_id("kernel");
 639 #ifdef CONFIG_MIRAGE
 640                 if (part_id)
 641                         part_id--;
 642 #endif
 643                 printf("COMMAND_PARTITION_SYNC - Part%d\n", part_id);
 644
 645                 blocks = parts[part_id]->size / 1024 / 128;
 646                 printf("COMMAND_PARTITION_SYNC - Part%d, %d blocks\n",
 647                                 part_id, blocks);
 648
 649                 *((ulong *) usbd->tx_data) = blocks;
 650                 usbd->send_data(usbd->tx_data, usbd->tx_len);
 651                 return 1;
 652
 653         case COMMAND_WRITE_PART_0:
 654                 /* Do nothing */
 655                 printf("COMMAND_WRITE_PART_0\n");
 656                 return 1;
 657
 658         case COMMAND_WRITE_PART_1:
 659                 printf("COMMAND_WRITE_PART_BOOT\n");
 660                 part_id = get_part_id("bootloader");
 661                 img_type = IMG_BOOT;
 662                 break;
 663
 664         case COMMAND_WRITE_PART_2:
 665         case COMMAND_ERASE_PARAMETER:
 666                 printf("COMMAND_PARAMETER - not support!\n");
 667                 break;
 668
 669         case COMMAND_WRITE_PART_3:
 670                 printf("COMMAND_WRITE_KERNEL\n");
 671                 part_id = get_part_id("kernel");
 672                 img_type = IMG_KERNEL;
 673                 break;
 674
 675         case COMMAND_WRITE_PART_4:
 676                 printf("COMMAND_WRITE_ROOTFS\n");
 677                 part_id = get_part_id("Root");
 678                 img_type = IMG_FILESYSTEM;
 679                 ubi_update = arg;
 680                 break;
 681
 682         case COMMAND_WRITE_PART_5:
 683                 printf("COMMAND_WRITE_FACTORYFS\n");
 684                 part_id = get_part_id("Fact");
 685                 img_type = IMG_FILESYSTEM;
 686                 ubi_update = arg;
 687                 break;
 688
 689         case COMMAND_WRITE_PART_6:
 690                 printf("COMMAND_WRITE_DATAFS\n");
 691                 part_id = get_part_id("Data");
 692                 img_type = IMG_FILESYSTEM;
 693                 ubi_update = arg;
 694                 break;
 695
 696         case COMMAND_WRITE_PART_7:
 697                 printf("COMMAND_WRITE_UBI\n");
 698                 part_id = get_part_id("UBI");
 699                 img_type = IMG_FILESYSTEM;
 700                 ubi_update = 0;
 701                 /* someday, it will be deleted */
 702                 get_part_info();
 703                 break;
 704
 705         case COMMAND_WRITE_PART_8:
 706                 printf("COMMAND_WRITE_MODEM\n");
 707                 part_id = get_part_id("modem");
 708                 img_type = IMG_MODEM;
 709                 break;
 710
 711         case COMMAND_WRITE_PART_9:
 712                 printf("COMMAND_WRITE_MMC\n");
 713                 img_type = IMG_MMC;
 714                 mmc_part_write = arg;
 715                 break;
 716
 717         case COMMAND_WRITE_UBI_INFO:
 718                 printf("COMMAND_WRITE_UBI_INFO\n");
 719
 720                 if (ubi_mode) {
 721 #ifdef CONFIG_CMD_UBI
 722                         part_id = arg-1;
 723                         sprintf(length, "0x%x", (uint)len);
 724                         ret = ubi_cmd(part_id, ramaddr, length, "begin");
 725                 } else {
 726 #endif
 727                         printf("Error: Not UBI mode\n");
 728                         ret = 1;
 729                 }
 730
 731                 *((ulong *) usbd->tx_data) = ret;
 732                 /* Write image success -> Report status */
 733                 usbd->send_data(usbd->tx_data, usbd->tx_len);
 734
 735                 return !ret;
 736         /* Download complete -> reset */
 737         case COMMAND_RESET_PDA:
 738                 printf("\nDownload finished and Auto reset!\nWait........\n");
 739
 740                 /* Stop USB */
 741                 usbd->usb_stop();
 742
 743                 do_reset();
 744                 return 0;
 745
 746         /* Error */
 747         case COMMAND_RESET_USB:
 748                 printf("\nError is occured!(maybe previous step)->\
 749                                 Turn off and restart!\n");
 750
 751                 /* Stop USB */
 752                 usbd->usb_stop();
 753                 return 0;
 754
 755         case COMMAND_RAM_BOOT:
 756                 usbd->usb_stop();
 757                 boot_cmd(ramaddr);
 758                 return 0;
 759
 760         case COMMAND_RAMDISK_MODE:
 761                 printf("COMMAND_RAMDISK_MODE\n");
 762 #ifdef CONFIG_RAMDISK_ADDR
 763                 if (arg) {
 764                         down_ram_addr = usbd->ram_addr;
 765                 } else {
 766                         down_ram_addr = CONFIG_RAMDISK_ADDR;
 767                         run_cmd("ramboot");
 768                 }
 769 #endif
 770                 return 1;
 771
 772 #ifdef CONFIG_DOWN_PHONE
 773         case COMMAND_DOWN_PHONE:
 774                 printf("COMMAND_RESET_PHONE\n");
 775
 776                 usbd_phone_down();
 777
 778                 *((ulong *) usbd->tx_data) = STATUS_DONE;
 779                 usbd->send_data(usbd->tx_data, usbd->tx_len);
 780                 return 1;
 781
 782         case COMMAND_CHANGE_USB:
 783                 printf("COMMAND_CHANGE_USB\n");
 784
 785                 /* Stop USB */
 786                 usbd->usb_stop();
 787
 788                 usbd_path_change();
 789
 790                 do_reset();
 791                 return 0;
 792 #endif
 793         case COMMAND_CSA_CLEAR:
 794                 printf("COMMAND_CSA_CLEAR\n");
 795                 part_id = get_part_id("csa");
 796                 img_type = IMG_MODEM;
 797                 break;
 798
 799         case COMMAND_PROGRESS:
 800                 if (usbd->set_progress)
 801                         usbd->set_progress(arg);
 802                 return 1;
 803
 804         default:
 805                 printf("Error: Unknown command -> (%d)\n", (int)cmd);
 806                 return 1;
 807         }
 808
 809         /* Erase and Write to NAND */
 810         switch (img_type) {
 811         case IMG_BOOT:
 812 #ifdef CONFIG_S5PC1XX
 813                 /* Workaround: for prevent revision mismatch */
 814                 if (cpu_is_s5pc110() && (down_mode != MODE_FORCE)) {
 815                         int img_rev = 1;
 816                         long *img_header = (long *)down_ram_addr;
 817
 818                         if (*img_header == 0xea000012)
 819                                 img_rev = 0;
 820
 821                         if (img_rev != s5pc1xx_get_cpu_rev()) {
 822                                 printf("CPU revision mismatch!\n");
 823                                 *((ulong *) usbd->tx_data) = STATUS_ERROR;
 824                                 usbd->send_data(usbd->tx_data, usbd->tx_len);
 825                                 return 0;
 826                         }
 827                 }
 828 #endif
 829 #if defined(CONFIG_ENV_IS_IN_NAND) || defined(CONFIG_ENV_IS_IN_ONENAND)
 830                 /* Erase the environment also when write bootloader */
 831                 {
 832                         int param_id;
 833                         param_id = get_part_id("params");
 834
 835                         if (param_id == -1) {
 836                                 sprintf(offset, "%x", CONFIG_ENV_OFFSET);
 837                                 sprintf(length, "%x", CONFIG_ENV_SIZE);
 838                         } else {
 839                                 sprintf(offset, "%x", parts[param_id]->offset);
 840                                 sprintf(length, "%x", parts[param_id]->size);
 841                         }
 842                         nand_cmd(0, offset, length, NULL);
 843                 }
 844 #endif
 845                 /* Fall through for write bootloader */
 846         case IMG_KERNEL:
 847                 sprintf(offset, "%x", parts[part_id]->offset);
 848                 sprintf(length, "%x", parts[part_id]->size);
 849
 850                 /* Erase */
 851                 nand_cmd(0, offset, length, NULL);
 852                 /* Write */
 853                 sprintf(length, "%x", (unsigned int) len);
 854                 ret = nand_cmd(1, ramaddr, offset, length);
 855                 break;
 856
 857         /* File Systems */
 858         case IMG_FILESYSTEM:
 859                 ret = write_file_system(ramaddr, len, offset, length,
 860                                 part_id, ubi_update);
 861                 break;
 862
 863         case IMG_MODEM:
 864                 sprintf(offset, "%x", parts[part_id]->offset);
 865                 sprintf(length, "%x", parts[part_id]->size);
 866
 867                 /* Erase */
 868                 if (!arg)
 869                         nand_cmd(0, offset, length, NULL);
 870                 else
 871                         printf("CSA Clear will be skipped temporary\n");
 872
 873                 /* Write : arg (0 Modem) / (1 CSA) */
 874                 if (!arg) {
 875                         sprintf(length, "%x", (unsigned int) len);
 876                         ret = nand_cmd(1, ramaddr, offset, length);
 877                 }
 878                 break;
 879
 880 #ifdef CONFIG_CMD_MMC
 881         case IMG_MMC:
 882                 if (mmc_part_write)
 883                         ret = write_file_mmc_part(usbd, ramaddr,
 884                                                 len, offset, length);
 885                 else
 886                         ret = write_file_mmc(usbd, ramaddr,
 887                                                 len, offset, length);
 888                 break;
 889 #endif
 890
 891         default:
 892                 /* Retry? */
 893                 write_part--;
 894         }
 895
 896         if (ret) {
 897                 /* Retry this commad */
 898                 *((ulong *) usbd->tx_data) = STATUS_RETRY;
 899                 usbd->send_data(usbd->tx_data, usbd->tx_len);
 900                 return 1;
 901         } else
 902                 *((ulong *) usbd->tx_data) = STATUS_DONE;
 903
 904         /* Write image success -> Report status */
 905         usbd->send_data(usbd->tx_data, usbd->tx_len);
 906
 907         write_part++;
 908
 909         /* Reset write count for another image */
 910         if (flag) {
 911                 write_part = 0;
 912                 fs_offset = 0;
 913 #ifdef CONFIG_USE_YAFFS
 914                 yaffs_len = 0;
 915 #endif
 916         }
 917
 918         return 1;
 919 }
 920
 921 static const char *recv_key = "SAMSUNG";
 922 static const char *tx_key = "MPL";
 923
 924 int do_usbd_down(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 925 {
 926         struct usbd_ops *usbd;
 927         int err;
 928
 929         if (argc > 1)
 930                 down_mode = simple_strtoul(argv[1], NULL, 10);
 931         else
 932                 down_mode = MODE_NORMAL;
 933
 934         printf("USB Downloader v%s\n", APP_VERSION);
 935
 936         /* get partition info */
 937         err = get_part_info();
 938         if (err)
 939                 return err;
 940
 941         /* interface setting */
 942         usbd = usbd_set_interface(&usbd_ops);
 943         down_ram_addr = usbd->ram_addr;
 944
 945         /* init the usb controller */
 946         usbd->usb_init();
 947
 948         /* receive setting */
 949         usbd->recv_setup(usbd->rx_data, usbd->rx_len);
 950
 951         /* detect the download request from Host PC */
 952         if (usbd->recv_data()) {
 953                 if (strncmp(usbd->rx_data, recv_key, strlen(recv_key)) == 0) {
 954                         printf("Download request from the Host PC\n");
 955                         msleep(30);
 956
 957                         strcpy(usbd->tx_data, tx_key);
 958                         usbd->send_data(usbd->tx_data, usbd->tx_len);
 959                 } else {
 960                         printf("No download request from the Host PC!! 1\n");
 961                         return 0;
 962                 }
 963         } else {
 964                 printf("No download request from the Host PC!!\n");
 965                 return 0;
 966         }
 967
 968         printf("Receive the packet\n");
 969
 970         /* receive the data from Host PC */
 971         while (1) {
 972                 usbd->recv_setup(usbd->rx_data, usbd->rx_len);
 973
 974                 if (usbd->recv_data()) {
 975                         if (process_data(usbd) == 0)
 976                                 return 0;
 977                 }
 978         }
 979
 980         return 0;
 981 }
 982
 983 U_BOOT_CMD(usbdown, CONFIG_SYS_MAXARGS, 1, do_usbd_down,
 984         "Initialize USB device and Run USB Downloader (specific)",
 985         "- normal mode\n"
 986         "usbdown mode - specific mode (0: NORAML, 1: FORCE)\n"
 987 );