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