lib_m68k/board.c

   1 /*
   2  * (C) Copyright 2003
   3  * Josef Baumgartner <josef.baumgartner@telex.de>
   4  *
   5  * (C) Copyright 2000-2002
   6  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26
  27 #include <common.h>
  28 #include <watchdog.h>
  29 #include <command.h>
  30 #include <malloc.h>
  31 #include <devices.h>
  32
  33 #include <asm/immap.h>
  34
  35 #if defined(CONFIG_CMD_IDE)
  36 #include <ide.h>
  37 #endif
  38 #if defined(CONFIG_CMD_SCSI)
  39 #include <scsi.h>
  40 #endif
  41 #if defined(CONFIG_CMD_KGDB)
  42 #include <kgdb.h>
  43 #endif
  44 #ifdef CONFIG_STATUS_LED
  45 #include <status_led.h>
  46 #endif
  47 #include <net.h>
  48 #include <serial.h>
  49 #if defined(CONFIG_CMD_BEDBUG)
  50 #include <cmd_bedbug.h>
  51 #endif
  52 #ifdef CFG_ALLOC_DPRAM
  53 #include <commproc.h>
  54 #endif
  55 #include <version.h>
  56
  57 #if defined(CONFIG_HARD_I2C) || \
  58     defined(CONFIG_SOFT_I2C)
  59 #include <i2c.h>
  60 #endif
  61
  62 DECLARE_GLOBAL_DATA_PTR;
  63
  64 static char *failed = "*** failed ***\n";
  65
  66 #ifdef  CONFIG_PCU_E
  67 extern flash_info_t flash_info[];
  68 #endif
  69
  70 #include <environment.h>
  71
  72 #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
  73       (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
  74     defined(CFG_ENV_IS_IN_NVRAM)
  75 #define TOTAL_MALLOC_LEN        (CFG_MALLOC_LEN + CFG_ENV_SIZE)
  76 #else
  77 #define TOTAL_MALLOC_LEN        CFG_MALLOC_LEN
  78 #endif
  79
  80 extern ulong __init_end;
  81 extern ulong _end;
  82
  83 extern  void timer_init(void);
  84
  85 #if defined(CONFIG_WATCHDOG)
  86 # define INIT_FUNC_WATCHDOG_INIT        watchdog_init,
  87 # define WATCHDOG_DISABLE               watchdog_disable
  88
  89 extern int watchdog_init(void);
  90 extern int watchdog_disable(void);
  91 #else
  92 # define INIT_FUNC_WATCHDOG_INIT        /* undef */
  93 # define WATCHDOG_DISABLE               /* undef */
  94 #endif /* CONFIG_WATCHDOG */
  95
  96 ulong monitor_flash_len;
  97
  98 /*
  99  * Begin and End of memory area for malloc(), and current "brk"
 100  */
 101 static  ulong   mem_malloc_start = 0;
 102 static  ulong   mem_malloc_end   = 0;
 103 static  ulong   mem_malloc_brk   = 0;
 104
 105 /************************************************************************
 106  * Utilities                                                            *
 107  ************************************************************************
 108  */
 109
 110 /*
 111  * The Malloc area is immediately below the monitor copy in DRAM
 112  */
 113 static void mem_malloc_init (void)
 114 {
 115         ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
 116
 117         mem_malloc_end = dest_addr;
 118         mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 119         mem_malloc_brk = mem_malloc_start;
 120
 121         memset ((void *) mem_malloc_start,
 122                 0,
 123                 mem_malloc_end - mem_malloc_start);
 124 }
 125
 126 void *sbrk (ptrdiff_t increment)
 127 {
 128         ulong old = mem_malloc_brk;
 129         ulong new = old + increment;
 130
 131         if ((new < mem_malloc_start) ||
 132             (new > mem_malloc_end) ) {
 133                 return (NULL);
 134         }
 135         mem_malloc_brk = new;
 136         return ((void *)old);
 137 }
 138
 139 char *strmhz(char *buf, long hz)
 140 {
 141         long l, n;
 142         long m;
 143
 144         n = hz / 1000000L;
 145
 146         l = sprintf (buf, "%ld", n);
 147
 148         m = (hz % 1000000L) / 1000L;
 149
 150         if (m != 0)
 151                 sprintf (buf+l, ".%03ld", m);
 152
 153         return (buf);
 154 }
 155
 156 /*
 157  * All attempts to come up with a "common" initialization sequence
 158  * that works for all boards and architectures failed: some of the
 159  * requirements are just _too_ different. To get rid of the resulting
 160  * mess of board dependend #ifdef'ed code we now make the whole
 161  * initialization sequence configurable to the user.
 162  *
 163  * The requirements for any new initalization function is simple: it
 164  * receives a pointer to the "global data" structure as it's only
 165  * argument, and returns an integer return code, where 0 means
 166  * "continue" and != 0 means "fatal error, hang the system".
 167  */
 168 typedef int (init_fnc_t) (void);
 169
 170 /************************************************************************
 171  * Init Utilities
 172  ************************************************************************
 173  * Some of this code should be moved into the core functions,
 174  * but let's get it working (again) first...
 175  */
 176
 177 static int init_baudrate (void)
 178 {
 179         uchar tmp[64];  /* long enough for environment variables */
 180         int i = getenv_r ("baudrate", tmp, sizeof (tmp));
 181
 182         gd->baudrate = (i > 0)
 183                         ? (int) simple_strtoul (tmp, NULL, 10)
 184                         : CONFIG_BAUDRATE;
 185         return (0);
 186 }
 187
 188 /***********************************************************************/
 189
 190 static int init_func_ram (void)
 191 {
 192         int board_type = 0;     /* use dummy arg */
 193         puts ("DRAM:  ");
 194
 195         if ((gd->ram_size = initdram (board_type)) > 0) {
 196                 print_size (gd->ram_size, "\n");
 197                 return (0);
 198         }
 199         puts (failed);
 200         return (1);
 201 }
 202
 203 /***********************************************************************/
 204
 205 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 206 static int init_func_i2c (void)
 207 {
 208         puts ("I2C:   ");
 209         i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
 210         puts ("ready\n");
 211         return (0);
 212 }
 213 #endif
 214
 215 /***********************************************************************/
 216
 217 /************************************************************************
 218  * Initialization sequence                                              *
 219  ************************************************************************
 220  */
 221
 222 init_fnc_t *init_sequence[] = {
 223         get_clocks,
 224         env_init,
 225         init_baudrate,
 226         serial_init,
 227         console_init_f,
 228         display_options,
 229         checkcpu,
 230         checkboard,
 231 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 232         init_func_i2c,
 233 #endif
 234         init_func_ram,
 235 #if defined(CFG_DRAM_TEST)
 236         testdram,
 237 #endif /* CFG_DRAM_TEST */
 238         INIT_FUNC_WATCHDOG_INIT
 239         NULL,                   /* Terminate this list */
 240 };
 241
 242
 243 /************************************************************************
 244  *
 245  * This is the first part of the initialization sequence that is
 246  * implemented in C, but still running from ROM.
 247  *
 248  * The main purpose is to provide a (serial) console interface as
 249  * soon as possible (so we can see any error messages), and to
 250  * initialize the RAM so that we can relocate the monitor code to
 251  * RAM.
 252  *
 253  * Be aware of the restrictions: global data is read-only, BSS is not
 254  * initialized, and stack space is limited to a few kB.
 255  *
 256  ************************************************************************
 257  */
 258
 259 void
 260 board_init_f (ulong bootflag)
 261 {
 262         bd_t *bd;
 263         ulong len, addr, addr_sp;
 264         ulong *paddr;
 265         gd_t *id;
 266         init_fnc_t **init_fnc_ptr;
 267 #ifdef CONFIG_PRAM
 268         int i;
 269         ulong reg;
 270         uchar tmp[64];          /* long enough for environment variables */
 271 #endif
 272
 273         /* Pointer is writable since we allocated a register for it */
 274         gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
 275         /* compiler optimization barrier needed for GCC >= 3.4 */
 276         __asm__ __volatile__("": : :"memory");
 277
 278         /* Clear initial global data */
 279         memset ((void *) gd, 0, sizeof (gd_t));
 280
 281         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 282                 if ((*init_fnc_ptr)() != 0) {
 283                         hang ();
 284                 }
 285         }
 286
 287         /*
 288          * Now that we have DRAM mapped and working, we can
 289          * relocate the code and continue running from DRAM.
 290          *
 291          * Reserve memory at end of RAM for (top down in that order):
 292          *      - protected RAM
 293          *      - LCD framebuffer
 294          *      - monitor code
 295          *      - board info struct
 296          */
 297         len = (ulong)&_end - CFG_MONITOR_BASE;
 298
 299         addr = CFG_SDRAM_BASE + gd->ram_size;
 300
 301 #ifdef CONFIG_LOGBUFFER
 302         /* reserve kernel log buffer */
 303         addr -= (LOGBUFF_RESERVE);
 304         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 305 #endif
 306
 307 #ifdef CONFIG_PRAM
 308         /*
 309          * reserve protected RAM
 310          */
 311         i = getenv_r ("pram", tmp, sizeof (tmp));
 312         reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
 313         addr -= (reg << 10);            /* size is in kB */
 314         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 315 #endif /* CONFIG_PRAM */
 316
 317         /* round down to next 4 kB limit */
 318         addr &= ~(4096 - 1);
 319         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 320
 321 #ifdef CONFIG_LCD
 322         /* reserve memory for LCD display (always full pages) */
 323         addr = lcd_setmem (addr);
 324         gd->fb_base = addr;
 325 #endif /* CONFIG_LCD */
 326
 327         /*
 328          * reserve memory for U-Boot code, data & bss
 329          * round down to next 4 kB limit
 330          */
 331         addr -= len;
 332         addr &= ~(4096 - 1);
 333
 334         debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 335
 336         /*
 337          * reserve memory for malloc() arena
 338          */
 339         addr_sp = addr - TOTAL_MALLOC_LEN;
 340         debug ("Reserving %dk for malloc() at: %08lx\n",
 341                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 342
 343         /*
 344          * (permanently) allocate a Board Info struct
 345          * and a permanent copy of the "global" data
 346          */
 347         addr_sp -= sizeof (bd_t);
 348         bd = (bd_t *) addr_sp;
 349         gd->bd = bd;
 350         debug ("Reserving %d Bytes for Board Info at: %08lx\n",
 351                         sizeof (bd_t), addr_sp);
 352         addr_sp -= sizeof (gd_t);
 353         id = (gd_t *) addr_sp;
 354         debug ("Reserving %d Bytes for Global Data at: %08lx\n",
 355                         sizeof (gd_t), addr_sp);
 356
 357         /* Reserve memory for boot params. */
 358         addr_sp -= CFG_BOOTPARAMS_LEN;
 359         bd->bi_boot_params = addr_sp;
 360         debug ("Reserving %dk for boot parameters at: %08lx\n",
 361                         CFG_BOOTPARAMS_LEN >> 10, addr_sp);
 362
 363         /*
 364          * Finally, we set up a new (bigger) stack.
 365          *
 366          * Leave some safety gap for SP, force alignment on 16 byte boundary
 367          * Clear initial stack frame
 368          */
 369         addr_sp -= 16;
 370         addr_sp &= ~0xF;
 371
 372         paddr = (ulong *)addr_sp;
 373         *paddr-- = 0;
 374         *paddr-- = 0;
 375         addr_sp = (ulong)paddr;
 376
 377         debug ("Stack Pointer at: %08lx\n", addr_sp);
 378
 379         /*
 380          * Save local variables to board info struct
 381          */
 382         bd->bi_memstart  = CFG_SDRAM_BASE;      /* start of  DRAM memory      */
 383         bd->bi_memsize   = gd->ram_size;        /* size  of  DRAM memory in bytes */
 384 #ifdef CFG_INIT_RAM_ADDR
 385         bd->bi_sramstart = CFG_INIT_RAM_ADDR;   /* start of  SRAM memory        */
 386         bd->bi_sramsize  = CFG_INIT_RAM_END;    /* size  of  SRAM memory        */
 387 #endif
 388         bd->bi_mbar_base = CFG_MBAR;            /* base of internal registers */
 389
 390         bd->bi_bootflags = bootflag;            /* boot / reboot flag (for LynxOS)    */
 391
 392         WATCHDOG_RESET ();
 393         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 394         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 395 #ifdef CONFIG_PCI
 396         bd->bi_pcifreq = gd->pci_clk;           /* PCI Freq in Hz */
 397 #endif
 398 #ifdef CONFIG_EXTRA_CLOCK
 399         bd->bi_inpfreq = gd->inp_clk;           /* input Freq in Hz */
 400         bd->bi_vcofreq = gd->vco_clk;           /* vco Freq in Hz */
 401         bd->bi_flbfreq = gd->flb_clk;           /* flexbus Freq in Hz */
 402 #endif
 403         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 404
 405 #ifdef CFG_EXTBDINFO
 406         strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
 407         strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
 408 #endif
 409
 410         WATCHDOG_RESET ();
 411
 412 #ifdef CONFIG_POST
 413         post_bootmode_init();
 414         post_run (NULL, POST_ROM | post_bootmode_get(0));
 415 #endif
 416
 417         WATCHDOG_RESET();
 418
 419         memcpy (id, (void *)gd, sizeof (gd_t));
 420
 421         debug ("Start relocate of code from %08x to %08lx\n", CFG_MONITOR_BASE, addr);
 422         relocate_code (addr_sp, id, addr);
 423
 424         /* NOTREACHED - jump_to_ram() does not return */
 425 }
 426
 427 /************************************************************************
 428  *
 429  * This is the next part if the initialization sequence: we are now
 430  * running from RAM and have a "normal" C environment, i. e. global
 431  * data can be written, BSS has been cleared, the stack size in not
 432  * that critical any more, etc.
 433  *
 434  ************************************************************************
 435  */
 436 void board_init_r (gd_t *id, ulong dest_addr)
 437 {
 438         cmd_tbl_t *cmdtp;
 439         char *s, *e;
 440         bd_t *bd;
 441         int i;
 442         extern void malloc_bin_reloc (void);
 443
 444 #ifndef CFG_ENV_IS_NOWHERE
 445         extern char * env_name_spec;
 446 #endif
 447 #ifndef CFG_NO_FLASH
 448         ulong flash_size;
 449 #endif
 450         gd = id;                /* initialize RAM version of global data */
 451         bd = gd->bd;
 452
 453         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 454
 455 #ifdef CONFIG_SERIAL_MULTI
 456         serial_initialize();
 457 #endif
 458
 459         debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 460
 461         WATCHDOG_RESET ();
 462
 463         gd->reloc_off =  dest_addr - CFG_MONITOR_BASE;
 464
 465         monitor_flash_len = (ulong)&__init_end - dest_addr;
 466
 467         /*
 468          * We have to relocate the command table manually
 469          */
 470         for (cmdtp = &__u_boot_cmd_start; cmdtp !=  &__u_boot_cmd_end; cmdtp++) {
 471                 ulong addr;
 472                 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
 473 #if 0
 474                 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
 475                                 cmdtp->name, (ulong) (cmdtp->cmd), addr);
 476 #endif
 477                 cmdtp->cmd =
 478                         (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
 479
 480                 addr = (ulong)(cmdtp->name) + gd->reloc_off;
 481                 cmdtp->name = (char *)addr;
 482
 483                 if (cmdtp->usage) {
 484                         addr = (ulong)(cmdtp->usage) + gd->reloc_off;
 485                         cmdtp->usage = (char *)addr;
 486                 }
 487 #ifdef  CFG_LONGHELP
 488                 if (cmdtp->help) {
 489                         addr = (ulong)(cmdtp->help) + gd->reloc_off;
 490                         cmdtp->help = (char *)addr;
 491                 }
 492 #endif
 493         }
 494         /* there are some other pointer constants we must deal with */
 495 #ifndef CFG_ENV_IS_NOWHERE
 496         env_name_spec += gd->reloc_off;
 497 #endif
 498
 499         WATCHDOG_RESET ();
 500
 501 #ifdef CONFIG_LOGBUFFER
 502         logbuff_init_ptrs ();
 503 #endif
 504 #ifdef CONFIG_POST
 505         post_output_backlog ();
 506         post_reloc ();
 507 #endif
 508         WATCHDOG_RESET();
 509
 510 #if 0
 511         /* instruction cache enabled in cpu_init_f() for faster relocation */
 512         icache_enable ();       /* it's time to enable the instruction cache */
 513 #endif
 514
 515         /*
 516          * Setup trap handlers
 517          */
 518         trap_init (CFG_SDRAM_BASE);
 519
 520 #if !defined(CFG_NO_FLASH)
 521         puts ("FLASH: ");
 522
 523         if ((flash_size = flash_init ()) > 0) {
 524 # ifdef CFG_FLASH_CHECKSUM
 525                 print_size (flash_size, "");
 526                 /*
 527                  * Compute and print flash CRC if flashchecksum is set to 'y'
 528                  *
 529                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 530                  */
 531                 s = getenv ("flashchecksum");
 532                 if (s && (*s == 'y')) {
 533                         printf ("  CRC: %08lX",
 534                                         crc32 (0,
 535                                                    (const unsigned char *) CFG_FLASH_BASE,
 536                                                    flash_size)
 537                                         );
 538                 }
 539                 putc ('\n');
 540 # else  /* !CFG_FLASH_CHECKSUM */
 541                 print_size (flash_size, "\n");
 542 # endif /* CFG_FLASH_CHECKSUM */
 543         } else {
 544                 puts (failed);
 545                 hang ();
 546         }
 547
 548         bd->bi_flashstart = CFG_FLASH_BASE;     /* update start of FLASH memory    */
 549         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 550         bd->bi_flashoffset = 0;
 551 #else   /* CFG_NO_FLASH */
 552         bd->bi_flashsize = 0;
 553         bd->bi_flashstart = 0;
 554         bd->bi_flashoffset = 0;
 555 #endif /* !CFG_NO_FLASH */
 556
 557         WATCHDOG_RESET ();
 558
 559         /* initialize higher level parts of CPU like time base and timers */
 560         cpu_init_r ();
 561
 562         WATCHDOG_RESET ();
 563
 564         /* initialize malloc() area */
 565         mem_malloc_init ();
 566         malloc_bin_reloc ();
 567
 568 #ifdef CONFIG_SPI
 569 # if !defined(CFG_ENV_IS_IN_EEPROM)
 570         spi_init_f ();
 571 # endif
 572         spi_init_r ();
 573 #endif
 574
 575         /* relocate environment function pointers etc. */
 576         env_relocate ();
 577
 578         /*
 579          * Fill in missing fields of bd_info.
 580          * We do this here, where we have "normal" access to the
 581          * environment; we used to do this still running from ROM,
 582          * where had to use getenv_r(), which can be pretty slow when
 583          * the environment is in EEPROM.
 584          */
 585         s = getenv ("ethaddr");
 586         for (i = 0; i < 6; ++i) {
 587                 bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 588                 if (s)
 589                         s = (*e) ? e + 1 : e;
 590         }
 591 #ifdef CONFIG_HAS_ETH1
 592         /* handle the 2nd ethernet address */
 593
 594         s = getenv ("eth1addr");
 595         for (i = 0; i < 6; ++i) {
 596                 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 597                 if (s)
 598                         s = (*e) ? e + 1 : e;
 599         }
 600 #endif
 601 #ifdef CONFIG_HAS_ETH2
 602         /* handle the 3rd ethernet address */
 603
 604         s = getenv ("eth2addr");
 605         for (i = 0; i < 6; ++i) {
 606                 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 607                 if (s)
 608                         s = (*e) ? e + 1 : e;
 609         }
 610 #endif
 611
 612 #ifdef CONFIG_HAS_ETH3
 613         /* handle 4th ethernet address */
 614         s = getenv("eth3addr");
 615         for (i = 0; i < 6; ++i) {
 616                 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 617                 if (s)
 618                         s = (*e) ? e + 1 : e;
 619         }
 620 #endif
 621
 622         /* IP Address */
 623         bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 624
 625         WATCHDOG_RESET ();
 626
 627 #if defined(CONFIG_PCI)
 628         /*
 629          * Do pci configuration
 630          */
 631         pci_init ();
 632 #endif
 633
 634         /** leave this here (after malloc(), environment and PCI are working) **/
 635         /* Initialize devices */
 636         devices_init ();
 637
 638         /* Initialize the jump table for applications */
 639         jumptable_init ();
 640
 641         /* Initialize the console (after the relocation and devices init) */
 642         console_init_r ();
 643
 644 #if defined(CONFIG_MISC_INIT_R)
 645         /* miscellaneous platform dependent initialisations */
 646         misc_init_r ();
 647 #endif
 648
 649 #if defined(CONFIG_CMD_KGDB)
 650         WATCHDOG_RESET ();
 651         puts ("KGDB:  ");
 652         kgdb_init ();
 653 #endif
 654
 655         debug ("U-Boot relocated to %08lx\n", dest_addr);
 656
 657         /*
 658          * Enable Interrupts
 659          */
 660         interrupt_init ();
 661
 662         /* Must happen after interrupts are initialized since
 663          * an irq handler gets installed
 664          */
 665         timer_init();
 666
 667 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
 668         serial_buffered_init();
 669 #endif
 670
 671 #ifdef CONFIG_STATUS_LED
 672         status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
 673 #endif
 674
 675         udelay (20);
 676
 677         set_timer (0);
 678
 679         /* Insert function pointers now that we have relocated the code */
 680
 681         /* Initialize from environment */
 682         if ((s = getenv ("loadaddr")) != NULL) {
 683                 load_addr = simple_strtoul (s, NULL, 16);
 684         }
 685 #if defined(CONFIG_CMD_NET)
 686         if ((s = getenv ("bootfile")) != NULL) {
 687                 copy_filename (BootFile, s, sizeof (BootFile));
 688         }
 689 #endif
 690
 691         WATCHDOG_RESET ();
 692
 693 #if defined(CONFIG_CMD_DOC)
 694         WATCHDOG_RESET ();
 695         puts ("DOC:   ");
 696         doc_init ();
 697 #endif
 698
 699 #if defined(CONFIG_CMD_NAND)
 700         WATCHDOG_RESET ();
 701         puts ("NAND:  ");
 702         nand_init();            /* go init the NAND */
 703 #endif
 704
 705 #if defined(CONFIG_CMD_NET)
 706         WATCHDOG_RESET();
 707 #if defined(FEC_ENET)
 708         eth_init(bd);
 709 #endif
 710 #if defined(CONFIG_NET_MULTI)
 711         puts ("Net:   ");
 712         eth_initialize (bd);
 713 #endif
 714 #endif
 715
 716 #ifdef CONFIG_POST
 717         post_run (NULL, POST_RAM | post_bootmode_get(0));
 718 #endif
 719
 720 #if defined(CONFIG_CMD_PCMCIA) \
 721     && !defined(CONFIG_CMD_IDE)
 722         WATCHDOG_RESET ();
 723         puts ("PCMCIA:");
 724         pcmcia_init ();
 725 #endif
 726
 727 #if defined(CONFIG_CMD_IDE)
 728         WATCHDOG_RESET ();
 729         puts ("IDE:   ");
 730         ide_init ();
 731 #endif
 732
 733 #ifdef CONFIG_LAST_STAGE_INIT
 734         WATCHDOG_RESET ();
 735         /*
 736          * Some parts can be only initialized if all others (like
 737          * Interrupts) are up and running (i.e. the PC-style ISA
 738          * keyboard).
 739          */
 740         last_stage_init ();
 741 #endif
 742
 743 #if defined(CONFIG_CMD_BEDBUG)
 744         WATCHDOG_RESET ();
 745         bedbug_init ();
 746 #endif
 747
 748 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 749         /*
 750          * Export available size of memory for Linux,
 751          * taking into account the protected RAM at top of memory
 752          */
 753         {
 754                 ulong pram;
 755                 uchar memsz[32];
 756 #ifdef CONFIG_PRAM
 757                 char *s;
 758
 759                 if ((s = getenv ("pram")) != NULL) {
 760                         pram = simple_strtoul (s, NULL, 10);
 761                 } else {
 762                         pram = CONFIG_PRAM;
 763                 }
 764 #else
 765                 pram=0;
 766 #endif
 767 #ifdef CONFIG_LOGBUFFER
 768                 /* Also take the logbuffer into account (pram is in kB) */
 769                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
 770 #endif
 771                 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
 772                 setenv ("mem", memsz);
 773         }
 774 #endif
 775
 776 #ifdef CONFIG_MODEM_SUPPORT
 777  {
 778          extern int do_mdm_init;
 779          do_mdm_init = gd->do_mdm_init;
 780  }
 781 #endif
 782
 783 #ifdef CONFIG_WATCHDOG
 784         /* disable watchdog if environment is set */
 785         if ((s = getenv ("watchdog")) != NULL) {
 786                 if (strncmp (s, "off", 3) == 0) {
 787                         WATCHDOG_DISABLE ();
 788                 }
 789         }
 790 #endif /* CONFIG_WATCHDOG*/
 791
 792
 793         /* Initialization complete - start the monitor */
 794
 795         /* main_loop() can return to retry autoboot, if so just run it again. */
 796         for (;;) {
 797                 WATCHDOG_RESET ();
 798                 main_loop ();
 799         }
 800
 801         /* NOTREACHED - no way out of command loop except booting */
 802 }
 803
 804
 805 void hang(void)
 806 {
 807         puts ("### ERROR ### Please RESET the board ###\n");
 808         for (;;);
 809 }