tools/kwboot.c

   1 /*
   2  * Boot a Marvell SoC, with Xmodem over UART0.
   3  *  supports Kirkwood, Dove, Armada 370, Armada XP
   4  *
   5  * (c) 2012 Daniel Stodden <daniel.stodden@gmail.com>
   6  *
   7  * References: marvell.com, "88F6180, 88F6190, 88F6192, and 88F6281
   8  *   Integrated Controller: Functional Specifications" December 2,
   9  *   2008. Chapter 24.2 "BootROM Firmware".
  10  */
  11
  12 #include "kwbimage.h"
  13 #include "mkimage.h"
  14 #include "version.h"
  15
  16 #include <stdlib.h>
  17 #include <stdio.h>
  18 #include <string.h>
  19 #include <stdarg.h>
  20 #include <image.h>
  21 #include <libgen.h>
  22 #include <fcntl.h>
  23 #include <errno.h>
  24 #include <unistd.h>
  25 #include <stdint.h>
  26 #include <termios.h>
  27 #include <time.h>
  28 #include <sys/mman.h>
  29 #include <sys/stat.h>
  30
  31 /*
  32  * Marvell BootROM UART Sensing
  33  */
  34
  35 static unsigned char kwboot_msg_boot[] = {
  36         0xBB, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77
  37 };
  38
  39 static unsigned char kwboot_msg_debug[] = {
  40         0xDD, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77
  41 };
  42
  43 /* Defines known to work on Kirkwood */
  44 #define KWBOOT_MSG_REQ_DELAY    10 /* ms */
  45 #define KWBOOT_MSG_RSP_TIMEO    50 /* ms */
  46
  47 /* Defines known to work on Armada XP */
  48 #define KWBOOT_MSG_REQ_DELAY_AXP        1000 /* ms */
  49 #define KWBOOT_MSG_RSP_TIMEO_AXP        1000 /* ms */
  50
  51 /*
  52  * Xmodem Transfers
  53  */
  54
  55 #define SOH     1       /* sender start of block header */
  56 #define EOT     4       /* sender end of block transfer */
  57 #define ACK     6       /* target block ack */
  58 #define NAK     21      /* target block negative ack */
  59 #define CAN     24      /* target/sender transfer cancellation */
  60
  61 #define KWBOOT_XM_BLKSZ 128 /* xmodem block size */
  62
  63 struct kwboot_block {
  64         uint8_t soh;
  65         uint8_t pnum;
  66         uint8_t _pnum;
  67         uint8_t data[KWBOOT_XM_BLKSZ];
  68         uint8_t csum;
  69 } __packed;
  70
  71 #define KWBOOT_BLK_RSP_TIMEO 1000 /* ms */
  72 #define KWBOOT_HDR_RSP_TIMEO 10000 /* ms */
  73
  74 static int kwboot_verbose;
  75
  76 static int msg_req_delay = KWBOOT_MSG_REQ_DELAY;
  77 static int msg_rsp_timeo = KWBOOT_MSG_RSP_TIMEO;
  78 static int blk_rsp_timeo = KWBOOT_BLK_RSP_TIMEO;
  79
  80 static ssize_t
  81 kwboot_write(int fd, const char *buf, size_t len)
  82 {
  83         size_t tot = 0;
  84
  85         while (tot < len) {
  86                 ssize_t wr = write(fd, buf + tot, len - tot);
  87
  88                 if (wr < 0)
  89                         return -1;
  90
  91                 tot += wr;
  92         }
  93
  94         return tot;
  95 }
  96
  97 static void
  98 kwboot_printv(const char *fmt, ...)
  99 {
 100         va_list ap;
 101
 102         if (kwboot_verbose) {
 103                 va_start(ap, fmt);
 104                 vprintf(fmt, ap);
 105                 va_end(ap);
 106                 fflush(stdout);
 107         }
 108 }
 109
 110 static void
 111 __spinner(void)
 112 {
 113         const char seq[] = { '-', '\\', '|', '/' };
 114         const int div = 8;
 115         static int state, bs;
 116
 117         if (state % div == 0) {
 118                 fputc(bs, stdout);
 119                 fputc(seq[state / div % sizeof(seq)], stdout);
 120                 fflush(stdout);
 121         }
 122
 123         bs = '\b';
 124         state++;
 125 }
 126
 127 static void
 128 kwboot_spinner(void)
 129 {
 130         if (kwboot_verbose)
 131                 __spinner();
 132 }
 133
 134 static void
 135 __progress(int pct, char c)
 136 {
 137         const int width = 70;
 138         static const char *nl = "";
 139         static int pos;
 140
 141         if (pos % width == 0)
 142                 printf("%s%3d %% [", nl, pct);
 143
 144         fputc(c, stdout);
 145
 146         nl = "]\n";
 147         pos = (pos + 1) % width;
 148
 149         if (pct == 100) {
 150                 while (pos && pos++ < width)
 151                         fputc(' ', stdout);
 152                 fputs(nl, stdout);
 153                 nl = "";
 154                 pos = 0;
 155         }
 156
 157         fflush(stdout);
 158
 159 }
 160
 161 static void
 162 kwboot_progress(int _pct, char c)
 163 {
 164         static int pct;
 165
 166         if (_pct != -1)
 167                 pct = _pct;
 168
 169         if (kwboot_verbose)
 170                 __progress(pct, c);
 171
 172         if (pct == 100)
 173                 pct = 0;
 174 }
 175
 176 static int
 177 kwboot_tty_recv(int fd, void *buf, size_t len, int timeo)
 178 {
 179         int rc, nfds;
 180         fd_set rfds;
 181         struct timeval tv;
 182         ssize_t n;
 183
 184         rc = -1;
 185
 186         FD_ZERO(&rfds);
 187         FD_SET(fd, &rfds);
 188
 189         tv.tv_sec = 0;
 190         tv.tv_usec = timeo * 1000;
 191         if (tv.tv_usec > 1000000) {
 192                 tv.tv_sec += tv.tv_usec / 1000000;
 193                 tv.tv_usec %= 1000000;
 194         }
 195
 196         do {
 197                 nfds = select(fd + 1, &rfds, NULL, NULL, &tv);
 198                 if (nfds < 0)
 199                         goto out;
 200                 if (!nfds) {
 201                         errno = ETIMEDOUT;
 202                         goto out;
 203                 }
 204
 205                 n = read(fd, buf, len);
 206                 if (n <= 0)
 207                         goto out;
 208
 209                 buf = (char *)buf + n;
 210                 len -= n;
 211         } while (len > 0);
 212
 213         rc = 0;
 214 out:
 215         return rc;
 216 }
 217
 218 static int
 219 kwboot_tty_send(int fd, const void *buf, size_t len)
 220 {
 221         if (!buf)
 222                 return 0;
 223
 224         if (kwboot_write(fd, buf, len) < 0)
 225                 return -1;
 226
 227         return tcdrain(fd);
 228 }
 229
 230 static int
 231 kwboot_tty_send_char(int fd, unsigned char c)
 232 {
 233         return kwboot_tty_send(fd, &c, 1);
 234 }
 235
 236 static speed_t
 237 kwboot_tty_speed(int baudrate)
 238 {
 239         switch (baudrate) {
 240         case 115200:
 241                 return B115200;
 242         case 57600:
 243                 return B57600;
 244         case 38400:
 245                 return B38400;
 246         case 19200:
 247                 return B19200;
 248         case 9600:
 249                 return B9600;
 250         }
 251
 252         return -1;
 253 }
 254
 255 static int
 256 kwboot_open_tty(const char *path, speed_t speed)
 257 {
 258         int rc, fd;
 259         struct termios tio;
 260
 261         rc = -1;
 262
 263         fd = open(path, O_RDWR|O_NOCTTY|O_NDELAY);
 264         if (fd < 0)
 265                 goto out;
 266
 267         memset(&tio, 0, sizeof(tio));
 268
 269         tio.c_iflag = 0;
 270         tio.c_cflag = CREAD|CLOCAL|CS8;
 271
 272         tio.c_cc[VMIN] = 1;
 273         tio.c_cc[VTIME] = 10;
 274
 275         cfsetospeed(&tio, speed);
 276         cfsetispeed(&tio, speed);
 277
 278         rc = tcsetattr(fd, TCSANOW, &tio);
 279         if (rc)
 280                 goto out;
 281
 282         rc = fd;
 283 out:
 284         if (rc < 0) {
 285                 if (fd >= 0)
 286                         close(fd);
 287         }
 288
 289         return rc;
 290 }
 291
 292 static int
 293 kwboot_bootmsg(int tty, void *msg)
 294 {
 295         int rc;
 296         char c;
 297         int count;
 298
 299         if (msg == NULL)
 300                 kwboot_printv("Please reboot the target into UART boot mode...");
 301         else
 302                 kwboot_printv("Sending boot message. Please reboot the target...");
 303
 304         do {
 305                 rc = tcflush(tty, TCIOFLUSH);
 306                 if (rc)
 307                         break;
 308
 309                 for (count = 0; count < 128; count++) {
 310                         rc = kwboot_tty_send(tty, msg, 8);
 311                         if (rc) {
 312                                 usleep(msg_req_delay * 1000);
 313                                 continue;
 314                         }
 315                 }
 316
 317                 rc = kwboot_tty_recv(tty, &c, 1, msg_rsp_timeo);
 318
 319                 kwboot_spinner();
 320
 321         } while (rc || c != NAK);
 322
 323         kwboot_printv("\n");
 324
 325         return rc;
 326 }
 327
 328 static int
 329 kwboot_debugmsg(int tty, void *msg)
 330 {
 331         int rc;
 332
 333         kwboot_printv("Sending debug message. Please reboot the target...");
 334
 335         do {
 336                 char buf[16];
 337
 338                 rc = tcflush(tty, TCIOFLUSH);
 339                 if (rc)
 340                         break;
 341
 342                 rc = kwboot_tty_send(tty, msg, 8);
 343                 if (rc) {
 344                         usleep(msg_req_delay * 1000);
 345                         continue;
 346                 }
 347
 348                 rc = kwboot_tty_recv(tty, buf, 16, msg_rsp_timeo);
 349
 350                 kwboot_spinner();
 351
 352         } while (rc);
 353
 354         kwboot_printv("\n");
 355
 356         return rc;
 357 }
 358
 359 static size_t
 360 kwboot_xm_makeblock(struct kwboot_block *block, const void *data,
 361                     size_t size, int pnum)
 362 {
 363         size_t i, n;
 364
 365         block->soh = SOH;
 366         block->pnum = pnum;
 367         block->_pnum = ~block->pnum;
 368
 369         n = size < KWBOOT_XM_BLKSZ ? size : KWBOOT_XM_BLKSZ;
 370         memcpy(&block->data[0], data, n);
 371         memset(&block->data[n], 0, KWBOOT_XM_BLKSZ - n);
 372
 373         block->csum = 0;
 374         for (i = 0; i < n; i++)
 375                 block->csum += block->data[i];
 376
 377         return n;
 378 }
 379
 380 static uint64_t
 381 _now(void)
 382 {
 383         struct timespec ts;
 384
 385         if (clock_gettime(CLOCK_MONOTONIC, &ts)) {
 386                 static int err_print;
 387
 388                 if (!err_print) {
 389                         perror("clock_gettime() does not work");
 390                         err_print = 1;
 391                 }
 392
 393                 /* this will just make the timeout not work */
 394                 return -1ULL;
 395         }
 396
 397         return ts.tv_sec * 1000ULL + (ts.tv_nsec + 500000) / 1000000;
 398 }
 399
 400 static int
 401 _is_xm_reply(char c)
 402 {
 403         return c == ACK || c == NAK || c == CAN;
 404 }
 405
 406 static int
 407 _xm_reply_to_error(int c)
 408 {
 409         int rc = -1;
 410
 411         switch (c) {
 412         case ACK:
 413                 rc = 0;
 414                 break;
 415         case NAK:
 416                 errno = EBADMSG;
 417                 break;
 418         case CAN:
 419                 errno = ECANCELED;
 420                 break;
 421         default:
 422                 errno = EPROTO;
 423                 break;
 424         }
 425
 426         return rc;
 427 }
 428
 429 static int
 430 kwboot_xm_recv_reply(int fd, char *c, int allow_non_xm, int *non_xm_print)
 431 {
 432         int timeout = allow_non_xm ? KWBOOT_HDR_RSP_TIMEO : blk_rsp_timeo;
 433         uint64_t recv_until = _now() + timeout;
 434         int rc;
 435
 436         if (non_xm_print)
 437                 *non_xm_print = 0;
 438
 439         while (1) {
 440                 rc = kwboot_tty_recv(fd, c, 1, timeout);
 441                 if (rc) {
 442                         if (errno != ETIMEDOUT)
 443                                 return rc;
 444                         else if (allow_non_xm && *non_xm_print)
 445                                 return -1;
 446                         else
 447                                 *c = NAK;
 448                 }
 449
 450                 /* If received xmodem reply, end. */
 451                 if (_is_xm_reply(*c))
 452                         break;
 453
 454                 /*
 455                  * If printing non-xmodem text output is allowed and such a byte
 456                  * was received, print it and increase receiving time.
 457                  * Otherwise decrease timeout by time elapsed.
 458                  */
 459                 if (allow_non_xm) {
 460                         recv_until = _now() + timeout;
 461                         putchar(*c);
 462                         fflush(stdout);
 463                         *non_xm_print = 1;
 464                 } else {
 465                         timeout = recv_until - _now();
 466                         if (timeout < 0) {
 467                                 errno = ETIMEDOUT;
 468                                 return -1;
 469                         }
 470                 }
 471         }
 472
 473         return 0;
 474 }
 475
 476 static int
 477 kwboot_xm_sendblock(int fd, struct kwboot_block *block, int allow_non_xm,
 478                     int *done_print)
 479 {
 480         int non_xm_print;
 481         int rc, retries;
 482         char c;
 483
 484         *done_print = 0;
 485
 486         retries = 16;
 487         do {
 488                 rc = kwboot_tty_send(fd, block, sizeof(*block));
 489                 if (rc)
 490                         return rc;
 491
 492                 if (allow_non_xm && !*done_print) {
 493                         kwboot_progress(100, '.');
 494                         kwboot_printv("Done\n");
 495                         *done_print = 1;
 496                 }
 497
 498                 rc = kwboot_xm_recv_reply(fd, &c, allow_non_xm, &non_xm_print);
 499                 if (rc)
 500                         return rc;
 501
 502                 if (!allow_non_xm && c != ACK)
 503                         kwboot_progress(-1, '+');
 504         } while (c == NAK && retries-- > 0);
 505
 506         if (non_xm_print)
 507                 kwboot_printv("\n");
 508
 509         return _xm_reply_to_error(c);
 510 }
 511
 512 static int
 513 kwboot_xm_finish(int fd)
 514 {
 515         int rc, retries;
 516         char c;
 517
 518         kwboot_printv("Finishing transfer\n");
 519
 520         retries = 16;
 521         do {
 522                 rc = kwboot_tty_send_char(fd, EOT);
 523                 if (rc)
 524                         return rc;
 525
 526                 rc = kwboot_xm_recv_reply(fd, &c, 0, NULL);
 527                 if (rc)
 528                         return rc;
 529         } while (c == NAK && retries-- > 0);
 530
 531         return _xm_reply_to_error(c);
 532 }
 533
 534 static int
 535 kwboot_xmodem_one(int tty, int *pnum, int header, const uint8_t *data,
 536                   size_t size)
 537 {
 538         int done_print = 0;
 539         size_t sent, left;
 540         int rc;
 541
 542         kwboot_printv("Sending boot image %s (%zu bytes)...\n",
 543                       header ? "header" : "data", size);
 544
 545         left = size;
 546         sent = 0;
 547
 548         while (sent < size) {
 549                 struct kwboot_block block;
 550                 int last_block;
 551                 size_t blksz;
 552
 553                 blksz = kwboot_xm_makeblock(&block, data, left, (*pnum)++);
 554                 data += blksz;
 555
 556                 last_block = (left <= blksz);
 557
 558                 rc = kwboot_xm_sendblock(tty, &block, header && last_block,
 559                                          &done_print);
 560                 if (rc)
 561                         goto out;
 562
 563                 sent += blksz;
 564                 left -= blksz;
 565
 566                 if (!done_print)
 567                         kwboot_progress(sent * 100 / size, '.');
 568         }
 569
 570         if (!done_print)
 571                 kwboot_printv("Done\n");
 572
 573         return 0;
 574 out:
 575         kwboot_printv("\n");
 576         return rc;
 577 }
 578
 579 static int
 580 kwboot_xmodem(int tty, const void *_img, size_t size)
 581 {
 582         const uint8_t *img = _img;
 583         int rc, pnum;
 584         size_t hdrsz;
 585
 586         if (image_version(img) == 0)
 587                 hdrsz = KWBHEADER_V0_SIZE((struct main_hdr_v0 *)img);
 588         else
 589                 hdrsz = KWBHEADER_V1_SIZE((struct main_hdr_v1 *)img);
 590
 591         kwboot_printv("Waiting 2s and flushing tty\n");
 592         sleep(2); /* flush isn't effective without it */
 593         tcflush(tty, TCIOFLUSH);
 594
 595         pnum = 1;
 596
 597         rc = kwboot_xmodem_one(tty, &pnum, 1, img, hdrsz);
 598         if (rc)
 599                 return rc;
 600
 601         img += hdrsz;
 602         size -= hdrsz;
 603
 604         rc = kwboot_xmodem_one(tty, &pnum, 0, img, size);
 605         if (rc)
 606                 return rc;
 607
 608         return kwboot_xm_finish(tty);
 609 }
 610
 611 static int
 612 kwboot_term_pipe(int in, int out, const char *quit, int *s)
 613 {
 614         ssize_t nin;
 615         char _buf[128], *buf = _buf;
 616
 617         nin = read(in, buf, sizeof(_buf));
 618         if (nin <= 0)
 619                 return -1;
 620
 621         if (quit) {
 622                 int i;
 623
 624                 for (i = 0; i < nin; i++) {
 625                         if (*buf == quit[*s]) {
 626                                 (*s)++;
 627                                 if (!quit[*s])
 628                                         return 0;
 629                                 buf++;
 630                                 nin--;
 631                         } else {
 632                                 if (kwboot_write(out, quit, *s) < 0)
 633                                         return -1;
 634                                 *s = 0;
 635                         }
 636                 }
 637         }
 638
 639         if (kwboot_write(out, buf, nin) < 0)
 640                 return -1;
 641
 642         return 0;
 643 }
 644
 645 static int
 646 kwboot_terminal(int tty)
 647 {
 648         int rc, in, s;
 649         const char *quit = "\34c";
 650         struct termios otio, tio;
 651
 652         rc = -1;
 653
 654         in = STDIN_FILENO;
 655         if (isatty(in)) {
 656                 rc = tcgetattr(in, &otio);
 657                 if (!rc) {
 658                         tio = otio;
 659                         cfmakeraw(&tio);
 660                         rc = tcsetattr(in, TCSANOW, &tio);
 661                 }
 662                 if (rc) {
 663                         perror("tcsetattr");
 664                         goto out;
 665                 }
 666
 667                 kwboot_printv("[Type Ctrl-%c + %c to quit]\r\n",
 668                               quit[0]|0100, quit[1]);
 669         } else
 670                 in = -1;
 671
 672         rc = 0;
 673         s = 0;
 674
 675         do {
 676                 fd_set rfds;
 677                 int nfds = 0;
 678
 679                 FD_SET(tty, &rfds);
 680                 nfds = nfds < tty ? tty : nfds;
 681
 682                 if (in >= 0) {
 683                         FD_SET(in, &rfds);
 684                         nfds = nfds < in ? in : nfds;
 685                 }
 686
 687                 nfds = select(nfds + 1, &rfds, NULL, NULL, NULL);
 688                 if (nfds < 0)
 689                         break;
 690
 691                 if (FD_ISSET(tty, &rfds)) {
 692                         rc = kwboot_term_pipe(tty, STDOUT_FILENO, NULL, NULL);
 693                         if (rc)
 694                                 break;
 695                 }
 696
 697                 if (in >= 0 && FD_ISSET(in, &rfds)) {
 698                         rc = kwboot_term_pipe(in, tty, quit, &s);
 699                         if (rc)
 700                                 break;
 701                 }
 702         } while (quit[s] != 0);
 703
 704         if (in >= 0)
 705                 tcsetattr(in, TCSANOW, &otio);
 706         printf("\n");
 707 out:
 708         return rc;
 709 }
 710
 711 static void *
 712 kwboot_mmap_image(const char *path, size_t *size)
 713 {
 714         int rc, fd;
 715         struct stat st;
 716         void *img;
 717
 718         rc = -1;
 719         img = NULL;
 720
 721         fd = open(path, O_RDONLY);
 722         if (fd < 0)
 723                 goto out;
 724
 725         rc = fstat(fd, &st);
 726         if (rc)
 727                 goto out;
 728
 729         img = mmap(NULL, st.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
 730         if (img == MAP_FAILED) {
 731                 img = NULL;
 732                 goto out;
 733         }
 734
 735         rc = 0;
 736         *size = st.st_size;
 737 out:
 738         if (rc && img) {
 739                 munmap(img, st.st_size);
 740                 img = NULL;
 741         }
 742         if (fd >= 0)
 743                 close(fd);
 744
 745         return img;
 746 }
 747
 748 static uint8_t
 749 kwboot_img_csum8(void *_data, size_t size)
 750 {
 751         uint8_t *data = _data, csum;
 752
 753         for (csum = 0; size-- > 0; data++)
 754                 csum += *data;
 755
 756         return csum;
 757 }
 758
 759 static int
 760 kwboot_img_is_secure(void *img)
 761 {
 762         struct opt_hdr_v1 *ohdr;
 763
 764         for_each_opt_hdr_v1 (ohdr, img)
 765                 if (ohdr->headertype == OPT_HDR_V1_SECURE_TYPE)
 766                         return 1;
 767
 768         return 0;
 769 }
 770
 771 static int
 772 kwboot_img_patch_hdr(void *img, size_t size)
 773 {
 774         int rc;
 775         struct main_hdr_v1 *hdr;
 776         uint32_t srcaddr;
 777         uint8_t csum;
 778         size_t hdrsz = sizeof(*hdr);
 779         int image_ver;
 780         int is_secure;
 781
 782         rc = -1;
 783         hdr = img;
 784
 785         if (size < hdrsz) {
 786                 errno = EINVAL;
 787                 goto out;
 788         }
 789
 790         image_ver = image_version(img);
 791         if (image_ver != 0 && image_ver != 1) {
 792                 fprintf(stderr, "Invalid image header version\n");
 793                 errno = EINVAL;
 794                 goto out;
 795         }
 796
 797         if (image_ver == 0)
 798                 hdrsz = sizeof(*hdr);
 799         else
 800                 hdrsz = KWBHEADER_V1_SIZE(hdr);
 801
 802         if (size < hdrsz) {
 803                 errno = EINVAL;
 804                 goto out;
 805         }
 806
 807         csum = kwboot_img_csum8(hdr, hdrsz) - hdr->checksum;
 808         if (csum != hdr->checksum) {
 809                 errno = EINVAL;
 810                 goto out;
 811         }
 812
 813         if (image_ver == 0) {
 814                 struct main_hdr_v0 *hdr_v0 = img;
 815
 816                 hdr_v0->nandeccmode = IBR_HDR_ECC_DISABLED;
 817                 hdr_v0->nandpagesize = 0;
 818         }
 819
 820         srcaddr = le32_to_cpu(hdr->srcaddr);
 821
 822         switch (hdr->blockid) {
 823         case IBR_HDR_SATA_ID:
 824                 if (srcaddr < 1) {
 825                         errno = EINVAL;
 826                         goto out;
 827                 }
 828                 hdr->srcaddr = cpu_to_le32((srcaddr - 1) * 512);
 829                 break;
 830
 831         case IBR_HDR_SDIO_ID:
 832                 hdr->srcaddr = cpu_to_le32(srcaddr * 512);
 833                 break;
 834
 835         case IBR_HDR_PEX_ID:
 836                 if (srcaddr == 0xFFFFFFFF)
 837                         hdr->srcaddr = cpu_to_le32(hdrsz);
 838                 break;
 839
 840         case IBR_HDR_SPI_ID:
 841                 if (hdr->destaddr == cpu_to_le32(0xFFFFFFFF)) {
 842                         kwboot_printv("Patching destination and execution addresses from SPI/NOR XIP area to DDR area 0x00800000\n");
 843                         hdr->destaddr = cpu_to_le32(0x00800000);
 844                         hdr->execaddr = cpu_to_le32(0x00800000);
 845                 }
 846                 break;
 847         }
 848
 849         is_secure = kwboot_img_is_secure(img);
 850
 851         if (hdr->blockid != IBR_HDR_UART_ID) {
 852                 if (is_secure) {
 853                         fprintf(stderr,
 854                                 "Image has secure header with signature for non-UART booting\n");
 855                         errno = EINVAL;
 856                         goto out;
 857                 }
 858
 859                 kwboot_printv("Patching image boot signature to UART\n");
 860                 hdr->blockid = IBR_HDR_UART_ID;
 861         }
 862
 863         hdr->checksum = kwboot_img_csum8(hdr, hdrsz) - csum;
 864
 865         rc = 0;
 866 out:
 867         return rc;
 868 }
 869
 870 static void
 871 kwboot_usage(FILE *stream, char *progname)
 872 {
 873         fprintf(stream, "kwboot version %s\n", PLAIN_VERSION);
 874         fprintf(stream,
 875                 "Usage: %s [OPTIONS] [-b <image> | -D <image> ] [-B <baud> ] <TTY>\n",
 876                 progname);
 877         fprintf(stream, "\n");
 878         fprintf(stream,
 879                 "  -b <image>: boot <image> with preamble (Kirkwood, Armada 370/XP)\n");
 880         fprintf(stream,
 881                 "  -D <image>: boot <image> without preamble (Dove)\n");
 882         fprintf(stream, "  -d: enter debug mode\n");
 883         fprintf(stream, "  -a: use timings for Armada XP\n");
 884         fprintf(stream, "  -q <req-delay>:  use specific request-delay\n");
 885         fprintf(stream, "  -s <resp-timeo>: use specific response-timeout\n");
 886         fprintf(stream,
 887                 "  -o <block-timeo>: use specific xmodem block timeout\n");
 888         fprintf(stream, "\n");
 889         fprintf(stream, "  -t: mini terminal\n");
 890         fprintf(stream, "\n");
 891         fprintf(stream, "  -B <baud>: set baud rate\n");
 892         fprintf(stream, "\n");
 893 }
 894
 895 int
 896 main(int argc, char **argv)
 897 {
 898         const char *ttypath, *imgpath;
 899         int rv, rc, tty, term;
 900         void *bootmsg;
 901         void *debugmsg;
 902         void *img;
 903         size_t size;
 904         speed_t speed;
 905
 906         rv = 1;
 907         tty = -1;
 908         bootmsg = NULL;
 909         debugmsg = NULL;
 910         imgpath = NULL;
 911         img = NULL;
 912         term = 0;
 913         size = 0;
 914         speed = B115200;
 915
 916         kwboot_verbose = isatty(STDOUT_FILENO);
 917
 918         do {
 919                 int c = getopt(argc, argv, "hb:ptaB:dD:q:s:o:");
 920                 if (c < 0)
 921                         break;
 922
 923                 switch (c) {
 924                 case 'b':
 925                         bootmsg = kwboot_msg_boot;
 926                         imgpath = optarg;
 927                         break;
 928
 929                 case 'D':
 930                         bootmsg = NULL;
 931                         imgpath = optarg;
 932                         break;
 933
 934                 case 'd':
 935                         debugmsg = kwboot_msg_debug;
 936                         break;
 937
 938                 case 'p':
 939                         /* nop, for backward compatibility */
 940                         break;
 941
 942                 case 't':
 943                         term = 1;
 944                         break;
 945
 946                 case 'a':
 947                         msg_req_delay = KWBOOT_MSG_REQ_DELAY_AXP;
 948                         msg_rsp_timeo = KWBOOT_MSG_RSP_TIMEO_AXP;
 949                         break;
 950
 951                 case 'q':
 952                         msg_req_delay = atoi(optarg);
 953                         break;
 954
 955                 case 's':
 956                         msg_rsp_timeo = atoi(optarg);
 957                         break;
 958
 959                 case 'o':
 960                         blk_rsp_timeo = atoi(optarg);
 961                         break;
 962
 963                 case 'B':
 964                         speed = kwboot_tty_speed(atoi(optarg));
 965                         if (speed == -1)
 966                                 goto usage;
 967                         break;
 968
 969                 case 'h':
 970                         rv = 0;
 971                 default:
 972                         goto usage;
 973                 }
 974         } while (1);
 975
 976         if (!bootmsg && !term && !debugmsg)
 977                 goto usage;
 978
 979         if (argc - optind < 1)
 980                 goto usage;
 981
 982         ttypath = argv[optind++];
 983
 984         tty = kwboot_open_tty(ttypath, speed);
 985         if (tty < 0) {
 986                 perror(ttypath);
 987                 goto out;
 988         }
 989
 990         if (imgpath) {
 991                 img = kwboot_mmap_image(imgpath, &size);
 992                 if (!img) {
 993                         perror(imgpath);
 994                         goto out;
 995                 }
 996
 997                 rc = kwboot_img_patch_hdr(img, size);
 998                 if (rc) {
 999                         fprintf(stderr, "%s: Invalid image.\n", imgpath);
1000                         goto out;
1001                 }
1002         }
1003
1004         if (debugmsg) {
1005                 rc = kwboot_debugmsg(tty, debugmsg);
1006                 if (rc) {
1007                         perror("debugmsg");
1008                         goto out;
1009                 }
1010         } else if (bootmsg) {
1011                 rc = kwboot_bootmsg(tty, bootmsg);
1012                 if (rc) {
1013                         perror("bootmsg");
1014                         goto out;
1015                 }
1016         }
1017
1018         if (img) {
1019                 rc = kwboot_xmodem(tty, img, size);
1020                 if (rc) {
1021                         perror("xmodem");
1022                         goto out;
1023                 }
1024         }
1025
1026         if (term) {
1027                 rc = kwboot_terminal(tty);
1028                 if (rc && !(errno == EINTR)) {
1029                         perror("terminal");
1030                         goto out;
1031                 }
1032         }
1033
1034         rv = 0;
1035 out:
1036         if (tty >= 0)
1037                 close(tty);
1038
1039         if (img)
1040                 munmap(img, size);
1041
1042         return rv;
1043
1044 usage:
1045         kwboot_usage(rv ? stderr : stdout, basename(argv[0]));
1046         goto out;
1047 }