lib_ppc/board.c

   1 /*
   2  * (C) Copyright 2000-2004
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <watchdog.h>
  26 #include <command.h>
  27 #include <malloc.h>
  28 #include <devices.h>
  29 #ifdef CONFIG_8xx
  30 #include <mpc8xx.h>
  31 #endif
  32 #ifdef CONFIG_5xx
  33 #include <mpc5xx.h>
  34 #endif
  35 #ifdef CONFIG_MPC5XXX
  36 #include <mpc5xxx.h>
  37 #endif
  38 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
  39 #include <ide.h>
  40 #endif
  41 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
  42 #include <scsi.h>
  43 #endif
  44 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
  45 #include <kgdb.h>
  46 #endif
  47 #ifdef CONFIG_STATUS_LED
  48 #include <status_led.h>
  49 #endif
  50 #include <net.h>
  51 #ifdef CFG_ALLOC_DPRAM
  52 #if !(defined(CONFIG_8260)||defined(CONFIG_MPC8560))
  53 #include <commproc.h>
  54 #endif
  55 #endif
  56 #include <version.h>
  57 #if defined(CONFIG_BAB7xx)
  58 #include <w83c553f.h>
  59 #endif
  60 #include <dtt.h>
  61 #if defined(CONFIG_POST)
  62 #include <post.h>
  63 #endif
  64 #if defined(CONFIG_LOGBUFFER)
  65 #include <logbuff.h>
  66 #endif
  67 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
  68 #include <asm/cache.h>
  69 #endif
  70 #ifdef CONFIG_PS2KBD
  71 #include <keyboard.h>
  72 #endif
  73
  74 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
  75 void doc_init (void);
  76 #endif
  77 #if defined(CONFIG_HARD_I2C) || \
  78     defined(CONFIG_SOFT_I2C)
  79 #include <i2c.h>
  80 #endif
  81 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
  82 void nand_init (void);
  83 #endif
  84
  85 static char *failed = "*** failed ***\n";
  86
  87 #if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
  88 extern flash_info_t flash_info[];
  89 #endif
  90
  91 #include <environment.h>
  92
  93 #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
  94       (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
  95     defined(CFG_ENV_IS_IN_NVRAM)
  96 #define TOTAL_MALLOC_LEN        (CFG_MALLOC_LEN + CFG_ENV_SIZE)
  97 #else
  98 #define TOTAL_MALLOC_LEN        CFG_MALLOC_LEN
  99 #endif
 100
 101 extern ulong __init_end;
 102 extern ulong _end;
 103 ulong monitor_flash_len;
 104
 105 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
 106 #include <bedbug/type.h>
 107 #endif
 108
 109 /*
 110  * Begin and End of memory area for malloc(), and current "brk"
 111  */
 112 static  ulong   mem_malloc_start = 0;
 113 static  ulong   mem_malloc_end   = 0;
 114 static  ulong   mem_malloc_brk   = 0;
 115
 116 /************************************************************************
 117  * Utilities                                                            *
 118  ************************************************************************
 119  */
 120
 121 /*
 122  * The Malloc area is immediately below the monitor copy in DRAM
 123  */
 124 static void mem_malloc_init (void)
 125 {
 126         DECLARE_GLOBAL_DATA_PTR;
 127
 128         ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
 129
 130         mem_malloc_end = dest_addr;
 131         mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 132         mem_malloc_brk = mem_malloc_start;
 133
 134         memset ((void *) mem_malloc_start,
 135                 0,
 136                 mem_malloc_end - mem_malloc_start);
 137 }
 138
 139 void *sbrk (ptrdiff_t increment)
 140 {
 141         ulong old = mem_malloc_brk;
 142         ulong new = old + increment;
 143
 144         if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
 145                 return (NULL);
 146         }
 147         mem_malloc_brk = new;
 148         return ((void *) old);
 149 }
 150
 151 char *strmhz (char *buf, long hz)
 152 {
 153         long l, n;
 154         long m;
 155
 156         n = hz / 1000000L;
 157         l = sprintf (buf, "%ld", n);
 158         m = (hz % 1000000L) / 1000L;
 159         if (m != 0)
 160                 sprintf (buf + l, ".%03ld", m);
 161         return (buf);
 162 }
 163
 164 /*
 165  * All attempts to come up with a "common" initialization sequence
 166  * that works for all boards and architectures failed: some of the
 167  * requirements are just _too_ different. To get rid of the resulting
 168  * mess of board dependend #ifdef'ed code we now make the whole
 169  * initialization sequence configurable to the user.
 170  *
 171  * The requirements for any new initalization function is simple: it
 172  * receives a pointer to the "global data" structure as it's only
 173  * argument, and returns an integer return code, where 0 means
 174  * "continue" and != 0 means "fatal error, hang the system".
 175  */
 176 typedef int (init_fnc_t) (void);
 177
 178 /************************************************************************
 179  * Init Utilities                                                       *
 180  ************************************************************************
 181  * Some of this code should be moved into the core functions,
 182  * but let's get it working (again) first...
 183  */
 184
 185 static int init_baudrate (void)
 186 {
 187         DECLARE_GLOBAL_DATA_PTR;
 188
 189         uchar tmp[64];  /* long enough for environment variables */
 190         int i = getenv_r ("baudrate", tmp, sizeof (tmp));
 191
 192         gd->baudrate = (i > 0)
 193                         ? (int) simple_strtoul (tmp, NULL, 10)
 194                         : CONFIG_BAUDRATE;
 195         return (0);
 196 }
 197
 198 /***********************************************************************/
 199
 200 static int init_func_ram (void)
 201 {
 202         DECLARE_GLOBAL_DATA_PTR;
 203
 204 #ifdef  CONFIG_BOARD_TYPES
 205         int board_type = gd->board_type;
 206 #else
 207         int board_type = 0;     /* use dummy arg */
 208 #endif
 209         puts ("DRAM:  ");
 210
 211         if ((gd->ram_size = initdram (board_type)) > 0) {
 212                 print_size (gd->ram_size, "\n");
 213                 return (0);
 214         }
 215         puts (failed);
 216         return (1);
 217 }
 218
 219 /***********************************************************************/
 220
 221 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 222 static int init_func_i2c (void)
 223 {
 224         puts ("I2C:   ");
 225         i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
 226         puts ("ready\n");
 227         return (0);
 228 }
 229 #endif
 230
 231 /***********************************************************************/
 232
 233 #if defined(CONFIG_WATCHDOG)
 234 static int init_func_watchdog_init (void)
 235 {
 236         puts ("       Watchdog enabled\n");
 237         WATCHDOG_RESET ();
 238         return (0);
 239 }
 240 # define INIT_FUNC_WATCHDOG_INIT        init_func_watchdog_init,
 241
 242 static int init_func_watchdog_reset (void)
 243 {
 244         WATCHDOG_RESET ();
 245         return (0);
 246 }
 247 # define INIT_FUNC_WATCHDOG_RESET       init_func_watchdog_reset,
 248 #else
 249 # define INIT_FUNC_WATCHDOG_INIT        /* undef */
 250 # define INIT_FUNC_WATCHDOG_RESET       /* undef */
 251 #endif /* CONFIG_WATCHDOG */
 252
 253 /************************************************************************
 254  * Initialization sequence                                              *
 255  ************************************************************************
 256  */
 257
 258 init_fnc_t *init_sequence[] = {
 259
 260 #if defined(CONFIG_BOARD_PRE_INIT)
 261         board_pre_init,         /* very early board init code (fpga boot, etc.) */
 262 #endif
 263
 264         get_clocks,             /* get CPU and bus clocks (etc.) */
 265         init_timebase,
 266 #ifdef CFG_ALLOC_DPRAM
 267 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
 268         dpram_init,
 269 #endif
 270 #endif
 271 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 272         board_postclk_init,
 273 #endif
 274         env_init,
 275         init_baudrate,
 276         serial_init,
 277         console_init_f,
 278         display_options,
 279 #if defined(CONFIG_8260)
 280         prt_8260_rsr,
 281         prt_8260_clks,
 282 #endif /* CONFIG_8260 */
 283         checkcpu,
 284 #if defined(CONFIG_MPC5XXX)
 285         prt_mpc5xxx_clks,
 286 #endif /* CONFIG_MPC5XXX */
 287         checkboard,
 288         INIT_FUNC_WATCHDOG_INIT
 289 #if defined(CONFIG_BMW)         || \
 290     defined(CONFIG_COGENT)      || \
 291     defined(CONFIG_HYMOD)       || \
 292     defined(CONFIG_RSD_PROTO)   || \
 293     defined(CONFIG_W7O)
 294         misc_init_f,
 295 #endif
 296         INIT_FUNC_WATCHDOG_RESET
 297 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 298         init_func_i2c,
 299 #endif
 300 #if defined(CONFIG_DTT)         /* Digital Thermometers and Thermostats */
 301         dtt_init,
 302 #endif
 303 #ifdef CONFIG_POST
 304         post_init_f,
 305 #endif
 306         INIT_FUNC_WATCHDOG_RESET
 307         init_func_ram,
 308 #if defined(CFG_DRAM_TEST)
 309         testdram,
 310 #endif /* CFG_DRAM_TEST */
 311         INIT_FUNC_WATCHDOG_RESET
 312
 313         NULL,                   /* Terminate this list */
 314 };
 315
 316 /************************************************************************
 317  *
 318  * This is the first part of the initialization sequence that is
 319  * implemented in C, but still running from ROM.
 320  *
 321  * The main purpose is to provide a (serial) console interface as
 322  * soon as possible (so we can see any error messages), and to
 323  * initialize the RAM so that we can relocate the monitor code to
 324  * RAM.
 325  *
 326  * Be aware of the restrictions: global data is read-only, BSS is not
 327  * initialized, and stack space is limited to a few kB.
 328  *
 329  ************************************************************************
 330  */
 331
 332 void board_init_f (ulong bootflag)
 333 {
 334         DECLARE_GLOBAL_DATA_PTR;
 335
 336         bd_t *bd;
 337         ulong len, addr, addr_sp;
 338         gd_t *id;
 339         init_fnc_t **init_fnc_ptr;
 340 #ifdef CONFIG_PRAM
 341         int i;
 342         ulong reg;
 343         uchar tmp[64];          /* long enough for environment variables */
 344 #endif
 345
 346         /* Pointer is writable since we allocated a register for it */
 347         gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
 348
 349 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
 350         /* Clear initial global data */
 351         memset ((void *) gd, 0, sizeof (gd_t));
 352 #endif
 353
 354         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 355                 if ((*init_fnc_ptr) () != 0) {
 356                         hang ();
 357                 }
 358         }
 359
 360         /*
 361          * Now that we have DRAM mapped and working, we can
 362          * relocate the code and continue running from DRAM.
 363          *
 364          * Reserve memory at end of RAM for (top down in that order):
 365          *  - kernel log buffer
 366          *  - protected RAM
 367          *  - LCD framebuffer
 368          *  - monitor code
 369          *  - board info struct
 370          */
 371         len = (ulong)&_end - CFG_MONITOR_BASE;
 372
 373 #ifndef CONFIG_VERY_BIG_RAM
 374         addr = CFG_SDRAM_BASE + gd->ram_size;
 375 #else
 376         /* only allow stack below 256M */
 377         addr = CFG_SDRAM_BASE +
 378                (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
 379 #endif
 380
 381 #ifdef CONFIG_LOGBUFFER
 382         /* reserve kernel log buffer */
 383         addr -= (LOGBUFF_RESERVE);
 384         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 385 #endif
 386
 387 #ifdef CONFIG_PRAM
 388         /*
 389          * reserve protected RAM
 390          */
 391         i = getenv_r ("pram", tmp, sizeof (tmp));
 392         reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
 393         addr -= (reg << 10);            /* size is in kB */
 394         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 395 #endif /* CONFIG_PRAM */
 396
 397         /* round down to next 4 kB limit */
 398         addr &= ~(4096 - 1);
 399         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 400
 401 #ifdef CONFIG_LCD
 402         /* reserve memory for LCD display (always full pages) */
 403         addr = lcd_setmem (addr);
 404         gd->fb_base = addr;
 405 #endif /* CONFIG_LCD */
 406
 407 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
 408         /* reserve memory for video display (always full pages) */
 409         addr = video_setmem (addr);
 410         gd->fb_base = addr;
 411 #endif /* CONFIG_VIDEO  */
 412
 413         /*
 414          * reserve memory for U-Boot code, data & bss
 415          * round down to next 4 kB limit
 416          */
 417         addr -= len;
 418         addr &= ~(4096 - 1);
 419
 420         debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 421
 422 #ifdef CONFIG_AMIGAONEG3SE
 423         gd->relocaddr = addr;
 424 #endif
 425
 426         /*
 427          * reserve memory for malloc() arena
 428          */
 429         addr_sp = addr - TOTAL_MALLOC_LEN;
 430         debug ("Reserving %dk for malloc() at: %08lx\n",
 431                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 432
 433         /*
 434          * (permanently) allocate a Board Info struct
 435          * and a permanent copy of the "global" data
 436          */
 437         addr_sp -= sizeof (bd_t);
 438         bd = (bd_t *) addr_sp;
 439         gd->bd = bd;
 440         debug ("Reserving %d Bytes for Board Info at: %08lx\n",
 441                         sizeof (bd_t), addr_sp);
 442         addr_sp -= sizeof (gd_t);
 443         id = (gd_t *) addr_sp;
 444         debug ("Reserving %d Bytes for Global Data at: %08lx\n",
 445                         sizeof (gd_t), addr_sp);
 446
 447         /*
 448          * Finally, we set up a new (bigger) stack.
 449          *
 450          * Leave some safety gap for SP, force alignment on 16 byte boundary
 451          * Clear initial stack frame
 452          */
 453         addr_sp -= 16;
 454         addr_sp &= ~0xF;
 455         *((ulong *) addr_sp)-- = 0;
 456         *((ulong *) addr_sp)-- = 0;
 457         debug ("Stack Pointer at: %08lx\n", addr_sp);
 458
 459         /*
 460          * Save local variables to board info struct
 461          */
 462
 463         bd->bi_memstart  = CFG_SDRAM_BASE;      /* start of  DRAM memory      */
 464         bd->bi_memsize   = gd->ram_size;        /* size  of  DRAM memory in bytes */
 465
 466 #ifdef CONFIG_IP860
 467         bd->bi_sramstart = SRAM_BASE;   /* start of  SRAM memory      */
 468         bd->bi_sramsize  = SRAM_SIZE;   /* size  of  SRAM memory      */
 469 #else
 470         bd->bi_sramstart = 0;           /* FIXME */ /* start of  SRAM memory      */
 471         bd->bi_sramsize  = 0;           /* FIXME */ /* size  of  SRAM memory      */
 472 #endif
 473
 474 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
 475     defined(CONFIG_E500)
 476         bd->bi_immr_base = CFG_IMMR;    /* base  of IMMR register     */
 477 #endif
 478 #if defined(CONFIG_MPC5XXX)
 479         bd->bi_mbar_base = CFG_MBAR;    /* base of internal registers */
 480 #endif
 481
 482         bd->bi_bootflags = bootflag;    /* boot / reboot flag (for LynxOS)    */
 483
 484         WATCHDOG_RESET ();
 485         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 486         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 487 #if defined(CONFIG_8260) || defined(CONFIG_MPC8560)
 488         bd->bi_cpmfreq = gd->cpm_clk;
 489         bd->bi_brgfreq = gd->brg_clk;
 490         bd->bi_sccfreq = gd->scc_clk;
 491         bd->bi_vco     = gd->vco_out;
 492 #endif /* CONFIG_8260 */
 493 #if defined(CONFIG_MPC5XXX)
 494         bd->bi_ipbfreq = gd->ipb_clk;
 495         bd->bi_pcifreq = gd->pci_clk;
 496 #endif /* CONFIG_MPC5XXX */
 497         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 498
 499 #ifdef CFG_EXTBDINFO
 500         strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
 501         strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
 502
 503         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 504         bd->bi_plb_busfreq = gd->bus_clk;
 505 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 506         bd->bi_pci_busfreq = get_PCI_freq ();
 507
 508 #ifdef CFG_OPB_FREQ
 509         bd->bi_opbfreq = CFG_OPB_FREQ;
 510 #else
 511         bd->bi_opbfreq = 50000000;
 512 #endif
 513         bd->bi_iic_fast[0] = 0;
 514         bd->bi_iic_fast[1] = 0;
 515 #endif
 516 #endif
 517
 518         debug ("New Stack Pointer is: %08lx\n", addr_sp);
 519
 520         WATCHDOG_RESET ();
 521
 522 #ifdef CONFIG_POST
 523         post_bootmode_init();
 524         post_run (NULL, POST_ROM | post_bootmode_get(0));
 525 #endif
 526
 527         WATCHDOG_RESET();
 528
 529         memcpy (id, (void *)gd, sizeof (gd_t));
 530
 531         relocate_code (addr_sp, id, addr);
 532
 533         /* NOTREACHED - relocate_code() does not return */
 534 }
 535
 536
 537 /************************************************************************
 538  *
 539  * This is the next part if the initialization sequence: we are now
 540  * running from RAM and have a "normal" C environment, i. e. global
 541  * data can be written, BSS has been cleared, the stack size in not
 542  * that critical any more, etc.
 543  *
 544  ************************************************************************
 545  */
 546
 547 void board_init_r (gd_t *id, ulong dest_addr)
 548 {
 549         DECLARE_GLOBAL_DATA_PTR;
 550         cmd_tbl_t *cmdtp;
 551         char *s, *e;
 552         bd_t *bd;
 553         int i;
 554         extern void malloc_bin_reloc (void);
 555 #ifndef CFG_ENV_IS_NOWHERE
 556         extern char * env_name_spec;
 557 #endif
 558
 559 #ifndef CFG_NO_FLASH
 560         ulong flash_size;
 561 #endif
 562
 563         gd = id;                /* initialize RAM version of global data */
 564         bd = gd->bd;
 565
 566         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 567
 568         debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 569
 570         WATCHDOG_RESET ();
 571
 572         gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
 573
 574         monitor_flash_len = (ulong)&__init_end - dest_addr;
 575
 576         /*
 577          * We have to relocate the command table manually
 578          */
 579         for (cmdtp = &__u_boot_cmd_start; cmdtp !=  &__u_boot_cmd_end; cmdtp++) {
 580                 ulong addr;
 581                 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
 582 #if 0
 583                 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
 584                                 cmdtp->name, (ulong) (cmdtp->cmd), addr);
 585 #endif
 586                 cmdtp->cmd =
 587                         (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
 588
 589                 addr = (ulong)(cmdtp->name) + gd->reloc_off;
 590                 cmdtp->name = (char *)addr;
 591
 592                 if (cmdtp->usage) {
 593                         addr = (ulong)(cmdtp->usage) + gd->reloc_off;
 594                         cmdtp->usage = (char *)addr;
 595                 }
 596 #ifdef  CFG_LONGHELP
 597                 if (cmdtp->help) {
 598                         addr = (ulong)(cmdtp->help) + gd->reloc_off;
 599                         cmdtp->help = (char *)addr;
 600                 }
 601 #endif
 602         }
 603         /* there are some other pointer constants we must deal with */
 604 #ifndef CFG_ENV_IS_NOWHERE
 605         env_name_spec += gd->reloc_off;
 606 #endif
 607
 608         WATCHDOG_RESET ();
 609
 610 #ifdef CONFIG_LOGBUFFER
 611         logbuff_init_ptrs ();
 612 #endif
 613 #ifdef CONFIG_POST
 614         post_output_backlog ();
 615         post_reloc ();
 616 #endif
 617
 618         WATCHDOG_RESET();
 619
 620 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
 621         icache_enable ();       /* it's time to enable the instruction cache */
 622 #endif
 623
 624 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
 625        unlock_ram_in_cache();  /* it's time to unlock D-cache in e500 */
 626 #endif
 627
 628 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
 629         /*
 630          * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
 631          * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
 632          * bridge there.
 633          */
 634         pci_init ();
 635 #endif
 636 #if defined(CONFIG_BAB7xx)
 637         /*
 638          * Initialise the ISA bridge
 639          */
 640         initialise_w83c553f ();
 641 #endif
 642
 643         asm ("sync ; isync");
 644
 645         /*
 646          * Setup trap handlers
 647          */
 648         trap_init (dest_addr);
 649
 650 #if !defined(CFG_NO_FLASH)
 651         puts ("FLASH: ");
 652
 653         if ((flash_size = flash_init ()) > 0) {
 654 # ifdef CFG_FLASH_CHECKSUM
 655                 print_size (flash_size, "");
 656                 /*
 657                  * Compute and print flash CRC if flashchecksum is set to 'y'
 658                  *
 659                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 660                  */
 661                 s = getenv ("flashchecksum");
 662                 if (s && (*s == 'y')) {
 663                         printf ("  CRC: %08lX",
 664                                         crc32 (0,
 665                                                    (const unsigned char *) CFG_FLASH_BASE,
 666                                                    flash_size)
 667                                         );
 668                 }
 669                 putc ('\n');
 670 # else  /* !CFG_FLASH_CHECKSUM */
 671                 print_size (flash_size, "\n");
 672 # endif /* CFG_FLASH_CHECKSUM */
 673         } else {
 674                 puts (failed);
 675                 hang ();
 676         }
 677
 678         bd->bi_flashstart = CFG_FLASH_BASE;     /* update start of FLASH memory    */
 679         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 680 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
 681         bd->bi_flashoffset = 0;
 682 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
 683         bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor  */
 684 # else
 685         bd->bi_flashoffset = 0;
 686 # endif
 687 #else   /* CFG_NO_FLASH */
 688
 689         bd->bi_flashsize = 0;
 690         bd->bi_flashstart = 0;
 691         bd->bi_flashoffset = 0;
 692 #endif /* !CFG_NO_FLASH */
 693
 694         WATCHDOG_RESET ();
 695
 696         /* initialize higher level parts of CPU like time base and timers */
 697         cpu_init_r ();
 698
 699         WATCHDOG_RESET ();
 700
 701         /* initialize malloc() area */
 702         mem_malloc_init ();
 703         malloc_bin_reloc ();
 704
 705 #ifdef CONFIG_SPI
 706 # if !defined(CFG_ENV_IS_IN_EEPROM)
 707         spi_init_f ();
 708 # endif
 709         spi_init_r ();
 710 #endif
 711
 712         /* relocate environment function pointers etc. */
 713         env_relocate ();
 714
 715         /*
 716          * Fill in missing fields of bd_info.
 717          * We do this here, where we have "normal" access to the
 718          * environment; we used to do this still running from ROM,
 719          * where had to use getenv_r(), which can be pretty slow when
 720          * the environment is in EEPROM.
 721          */
 722         s = getenv ("ethaddr");
 723 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
 724         if (s == NULL)
 725                 board_get_enetaddr (bd->bi_enetaddr);
 726         else
 727 #endif
 728                 for (i = 0; i < 6; ++i) {
 729                         bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 730                         if (s)
 731                                 s = (*e) ? e + 1 : e;
 732                 }
 733 #ifdef  CONFIG_HERMES
 734         if ((gd->board_type >> 16) == 2)
 735                 bd->bi_ethspeed = gd->board_type & 0xFFFF;
 736         else
 737                 bd->bi_ethspeed = 0xFFFF;
 738 #endif
 739
 740 #ifdef CONFIG_NX823
 741         load_sernum_ethaddr ();
 742 #endif
 743
 744 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62) || defined(CONFIG_PPCHAMELEONEVB) || \
 745      defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS)
 746         /* handle the 2nd ethernet address */
 747
 748         s = getenv ("eth1addr");
 749
 750         for (i = 0; i < 6; ++i) {
 751                 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 752                 if (s)
 753                         s = (*e) ? e + 1 : e;
 754         }
 755 #endif
 756 #if defined(CFG_GT_6426x) || defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS)
 757         /* handle the 3rd ethernet address */
 758
 759         s = getenv ("eth2addr");
 760
 761         for (i = 0; i < 6; ++i) {
 762                 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 763                 if (s)
 764                         s = (*e) ? e + 1 : e;
 765         }
 766 #endif
 767
 768
 769 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
 770     defined(CONFIG_CCM)
 771         load_sernum_ethaddr ();
 772 #endif
 773         /* IP Address */
 774         bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 775
 776         WATCHDOG_RESET ();
 777
 778 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
 779         /*
 780          * Do pci configuration
 781          */
 782         pci_init ();
 783 #endif
 784
 785 /** leave this here (after malloc(), environment and PCI are working) **/
 786         /* Initialize devices */
 787         devices_init ();
 788
 789         /* Initialize the jump table for applications */
 790         jumptable_init ();
 791
 792         /* Initialize the console (after the relocation and devices init) */
 793         console_init_r ();
 794
 795 #if defined(CONFIG_CCM)         || \
 796     defined(CONFIG_COGENT)      || \
 797     defined(CONFIG_CPCI405)     || \
 798     defined(CONFIG_EVB64260)    || \
 799     defined(CONFIG_KUP4K)       || \
 800     defined(CONFIG_LWMON)       || \
 801     defined(CONFIG_PCU_E)       || \
 802     defined(CONFIG_W7O)         || \
 803     defined(CONFIG_MISC_INIT_R)
 804         /* miscellaneous platform dependent initialisations */
 805         misc_init_r ();
 806 #endif
 807
 808 #ifdef  CONFIG_HERMES
 809         if (bd->bi_ethspeed != 0xFFFF)
 810                 hermes_start_lxt980 ((int) bd->bi_ethspeed);
 811 #endif
 812
 813 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
 814     defined(CONFIG_CCM)         || \
 815     defined(CONFIG_ELPT860)     || \
 816     defined(CONFIG_EP8260)      || \
 817     defined(CONFIG_IP860)       || \
 818     defined(CONFIG_IVML24)      || \
 819     defined(CONFIG_IVMS8)       || \
 820     defined(CONFIG_LWMON)       || \
 821     defined(CONFIG_MPC8260ADS)  || \
 822     defined(CONFIG_MPC8266ADS)  || \
 823     defined(CONFIG_MPC8560ADS)  || \
 824     defined(CONFIG_PCU_E)       || \
 825     defined(CONFIG_RPXSUPER)    || \
 826     defined(CONFIG_SPD823TS)    )
 827
 828         WATCHDOG_RESET ();
 829         debug ("Reset Ethernet PHY\n");
 830         reset_phy ();
 831 #endif
 832
 833 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
 834         WATCHDOG_RESET ();
 835         puts ("KGDB:  ");
 836         kgdb_init ();
 837 #endif
 838
 839         debug ("U-Boot relocated to %08lx\n", dest_addr);
 840
 841         /*
 842          * Enable Interrupts
 843          */
 844         interrupt_init ();
 845
 846         /* Must happen after interrupts are initialized since
 847          * an irq handler gets installed
 848          */
 849 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
 850         serial_buffered_init();
 851 #endif
 852
 853 #ifdef CONFIG_STATUS_LED
 854         status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
 855 #endif
 856
 857         udelay (20);
 858
 859         set_timer (0);
 860
 861         /* Insert function pointers now that we have relocated the code */
 862
 863         /* Initialize from environment */
 864         if ((s = getenv ("loadaddr")) != NULL) {
 865                 load_addr = simple_strtoul (s, NULL, 16);
 866         }
 867 #if (CONFIG_COMMANDS & CFG_CMD_NET)
 868         if ((s = getenv ("bootfile")) != NULL) {
 869                 copy_filename (BootFile, s, sizeof (BootFile));
 870         }
 871 #endif /* CFG_CMD_NET */
 872
 873         WATCHDOG_RESET ();
 874
 875 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
 876         WATCHDOG_RESET ();
 877         puts ("SCSI:  ");
 878         scsi_init ();
 879 #endif
 880
 881 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
 882         WATCHDOG_RESET ();
 883         puts ("DOC:   ");
 884         doc_init ();
 885 #endif
 886
 887 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 888         WATCHDOG_RESET ();
 889         puts ("NAND:");
 890         nand_init();            /* go init the NAND */
 891 #endif
 892
 893 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
 894         WATCHDOG_RESET ();
 895         puts ("Net:   ");
 896         eth_initialize (bd);
 897 #endif
 898
 899 #ifdef CONFIG_POST
 900         post_run (NULL, POST_RAM | post_bootmode_get(0));
 901 #endif
 902
 903 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
 904         WATCHDOG_RESET ();
 905         puts ("PCMCIA:");
 906         pcmcia_init ();
 907 #endif
 908
 909 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
 910         WATCHDOG_RESET ();
 911 # ifdef CONFIG_IDE_8xx_PCCARD
 912         puts ("PCMCIA:");
 913 # else
 914         puts ("IDE:   ");
 915 #endif
 916         ide_init ();
 917 #endif /* CFG_CMD_IDE */
 918
 919 #ifdef CONFIG_LAST_STAGE_INIT
 920         WATCHDOG_RESET ();
 921         /*
 922          * Some parts can be only initialized if all others (like
 923          * Interrupts) are up and running (i.e. the PC-style ISA
 924          * keyboard).
 925          */
 926         last_stage_init ();
 927 #endif
 928
 929 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
 930         WATCHDOG_RESET ();
 931         bedbug_init ();
 932 #endif
 933
 934 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 935         /*
 936          * Export available size of memory for Linux,
 937          * taking into account the protected RAM at top of memory
 938          */
 939         {
 940                 ulong pram;
 941                 uchar memsz[32];
 942 #ifdef CONFIG_PRAM
 943                 char *s;
 944
 945                 if ((s = getenv ("pram")) != NULL) {
 946                         pram = simple_strtoul (s, NULL, 10);
 947                 } else {
 948                         pram = CONFIG_PRAM;
 949                 }
 950 #else
 951                 pram=0;
 952 #endif
 953 #ifdef CONFIG_LOGBUFFER
 954                 /* Also take the logbuffer into account (pram is in kB) */
 955                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
 956 #endif
 957                 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
 958                 setenv ("mem", memsz);
 959         }
 960 #endif
 961
 962 #ifdef CONFIG_PS2KBD
 963         puts ("PS/2:  ");
 964         kbd_init();
 965 #endif
 966
 967 #ifdef CONFIG_MODEM_SUPPORT
 968  {
 969          extern int do_mdm_init;
 970          do_mdm_init = gd->do_mdm_init;
 971  }
 972 #endif
 973
 974         /* Initialization complete - start the monitor */
 975
 976         /* main_loop() can return to retry autoboot, if so just run it again. */
 977         for (;;) {
 978                 WATCHDOG_RESET ();
 979                 main_loop ();
 980         }
 981
 982         /* NOTREACHED - no way out of command loop except booting */
 983 }
 984
 985 void hang (void)
 986 {
 987         puts ("### ERROR ### Please RESET the board ###\n");
 988         for (;;);
 989 }
 990
 991 #ifdef CONFIG_MODEM_SUPPORT
 992 /* called from main loop (common/main.c) */
 993 extern void  dbg(const char *fmt, ...);
 994 int mdm_init (void)
 995 {
 996         char env_str[16];
 997         char *init_str;
 998         int i;
 999         extern char console_buffer[];
1000         static inline void mdm_readline(char *buf, int bufsiz);
1001         extern void enable_putc(void);
1002         extern int hwflow_onoff(int);
1003
1004         enable_putc(); /* enable serial_putc() */
1005
1006 #ifdef CONFIG_HWFLOW
1007         init_str = getenv("mdm_flow_control");
1008         if (init_str && (strcmp(init_str, "rts/cts") == 0))
1009                 hwflow_onoff (1);
1010         else
1011                 hwflow_onoff(-1);
1012 #endif
1013
1014         for (i = 1;;i++) {
1015                 sprintf(env_str, "mdm_init%d", i);
1016                 if ((init_str = getenv(env_str)) != NULL) {
1017                         serial_puts(init_str);
1018                         serial_puts("\n");
1019                         for(;;) {
1020                                 mdm_readline(console_buffer, CFG_CBSIZE);
1021                                 dbg("ini%d: [%s]", i, console_buffer);
1022
1023                                 if ((strcmp(console_buffer, "OK") == 0) ||
1024                                         (strcmp(console_buffer, "ERROR") == 0)) {
1025                                         dbg("ini%d: cmd done", i);
1026                                         break;
1027                                 } else /* in case we are originating call ... */
1028                                         if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1029                                                 dbg("ini%d: connect", i);
1030                                                 return 0;
1031                                         }
1032                         }
1033                 } else
1034                         break; /* no init string - stop modem init */
1035
1036                 udelay(100000);
1037         }
1038
1039         udelay(100000);
1040
1041         /* final stage - wait for connect */
1042         for(;i > 1;) { /* if 'i' > 1 - wait for connection
1043                                   message from modem */
1044                 mdm_readline(console_buffer, CFG_CBSIZE);
1045                 dbg("ini_f: [%s]", console_buffer);
1046                 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1047                         dbg("ini_f: connected");
1048                         return 0;
1049                 }
1050         }
1051
1052         return 0;
1053 }
1054
1055 /* 'inline' - We have to do it fast */
1056 static inline void mdm_readline(char *buf, int bufsiz)
1057 {
1058         char c;
1059         char *p;
1060         int n;
1061
1062         n = 0;
1063         p = buf;
1064         for(;;) {
1065                 c = serial_getc();
1066
1067                 /*              dbg("(%c)", c); */
1068
1069                 switch(c) {
1070                 case '\r':
1071                         break;
1072                 case '\n':
1073                         *p = '\0';
1074                         return;
1075
1076                 default:
1077                         if(n++ > bufsiz) {
1078                                 *p = '\0';
1079                                 return; /* sanity check */
1080                         }
1081                         *p = c;
1082                         p++;
1083                         break;
1084                 }
1085         }
1086 }
1087 #endif
1088
1089 #if 0 /* We could use plain global data, but the resulting code is bigger */
1090 /*
1091  * Pointer to initial global data area
1092  *
1093  * Here we initialize it.
1094  */
1095 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
1096 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
1097 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1098 #endif  /* 0 */
1099
1100 /************************************************************************/