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_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
  88 extern flash_info_t flash_info[];
  89 #endif
  90
  91 #include <environment.h>
  92
  93 #if defined(CFG_ENV_IS_EMBEDDED)
  94 #define TOTAL_MALLOC_LEN        CFG_MALLOC_LEN
  95 #elif ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
  96         (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
  97       defined(CFG_ENV_IS_IN_NVRAM)
  98 #define TOTAL_MALLOC_LEN        (CFG_MALLOC_LEN + CFG_ENV_SIZE)
  99 #else
 100 #define TOTAL_MALLOC_LEN        CFG_MALLOC_LEN
 101 #endif
 102
 103 extern ulong __init_end;
 104 extern ulong _end;
 105 ulong monitor_flash_len;
 106
 107 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
 108 #include <bedbug/type.h>
 109 #endif
 110
 111 /*
 112  * Begin and End of memory area for malloc(), and current "brk"
 113  */
 114 static  ulong   mem_malloc_start = 0;
 115 static  ulong   mem_malloc_end   = 0;
 116 static  ulong   mem_malloc_brk   = 0;
 117
 118 /************************************************************************
 119  * Utilities                                                            *
 120  ************************************************************************
 121  */
 122
 123 /*
 124  * The Malloc area is immediately below the monitor copy in DRAM
 125  */
 126 static void mem_malloc_init (void)
 127 {
 128         DECLARE_GLOBAL_DATA_PTR;
 129
 130         ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
 131
 132         mem_malloc_end = dest_addr;
 133         mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 134         mem_malloc_brk = mem_malloc_start;
 135
 136         memset ((void *) mem_malloc_start,
 137                 0,
 138                 mem_malloc_end - mem_malloc_start);
 139 }
 140
 141 void *sbrk (ptrdiff_t increment)
 142 {
 143         ulong old = mem_malloc_brk;
 144         ulong new = old + increment;
 145
 146         if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
 147                 return (NULL);
 148         }
 149         mem_malloc_brk = new;
 150         return ((void *) old);
 151 }
 152
 153 char *strmhz (char *buf, long hz)
 154 {
 155         long l, n;
 156         long m;
 157
 158         n = hz / 1000000L;
 159         l = sprintf (buf, "%ld", n);
 160         m = (hz % 1000000L) / 1000L;
 161         if (m != 0)
 162                 sprintf (buf + l, ".%03ld", m);
 163         return (buf);
 164 }
 165
 166 /*
 167  * All attempts to come up with a "common" initialization sequence
 168  * that works for all boards and architectures failed: some of the
 169  * requirements are just _too_ different. To get rid of the resulting
 170  * mess of board dependend #ifdef'ed code we now make the whole
 171  * initialization sequence configurable to the user.
 172  *
 173  * The requirements for any new initalization function is simple: it
 174  * receives a pointer to the "global data" structure as it's only
 175  * argument, and returns an integer return code, where 0 means
 176  * "continue" and != 0 means "fatal error, hang the system".
 177  */
 178 typedef int (init_fnc_t) (void);
 179
 180 /************************************************************************
 181  * Init Utilities                                                       *
 182  ************************************************************************
 183  * Some of this code should be moved into the core functions,
 184  * but let's get it working (again) first...
 185  */
 186
 187 static int init_baudrate (void)
 188 {
 189         DECLARE_GLOBAL_DATA_PTR;
 190
 191         uchar tmp[64];  /* long enough for environment variables */
 192         int i = getenv_r ("baudrate", tmp, sizeof (tmp));
 193
 194         gd->baudrate = (i > 0)
 195                         ? (int) simple_strtoul (tmp, NULL, 10)
 196                         : CONFIG_BAUDRATE;
 197         return (0);
 198 }
 199
 200 /***********************************************************************/
 201
 202 static int init_func_ram (void)
 203 {
 204         DECLARE_GLOBAL_DATA_PTR;
 205
 206 #ifdef  CONFIG_BOARD_TYPES
 207         int board_type = gd->board_type;
 208 #else
 209         int board_type = 0;     /* use dummy arg */
 210 #endif
 211         puts ("DRAM:  ");
 212
 213         if ((gd->ram_size = initdram (board_type)) > 0) {
 214                 print_size (gd->ram_size, "\n");
 215                 return (0);
 216         }
 217         puts (failed);
 218         return (1);
 219 }
 220
 221 /***********************************************************************/
 222
 223 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 224 static int init_func_i2c (void)
 225 {
 226         puts ("I2C:   ");
 227         i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
 228         puts ("ready\n");
 229         return (0);
 230 }
 231 #endif
 232
 233 /***********************************************************************/
 234
 235 #if defined(CONFIG_WATCHDOG)
 236 static int init_func_watchdog_init (void)
 237 {
 238         puts ("       Watchdog enabled\n");
 239         WATCHDOG_RESET ();
 240         return (0);
 241 }
 242 # define INIT_FUNC_WATCHDOG_INIT        init_func_watchdog_init,
 243
 244 static int init_func_watchdog_reset (void)
 245 {
 246         WATCHDOG_RESET ();
 247         return (0);
 248 }
 249 # define INIT_FUNC_WATCHDOG_RESET       init_func_watchdog_reset,
 250 #else
 251 # define INIT_FUNC_WATCHDOG_INIT        /* undef */
 252 # define INIT_FUNC_WATCHDOG_RESET       /* undef */
 253 #endif /* CONFIG_WATCHDOG */
 254
 255 /************************************************************************
 256  * Initialization sequence                                              *
 257  ************************************************************************
 258  */
 259
 260 init_fnc_t *init_sequence[] = {
 261
 262 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 263         board_early_init_f,
 264 #endif
 265
 266 #if !defined(CONFIG_TQM866M)
 267         get_clocks,             /* get CPU and bus clocks (etc.) */
 268         init_timebase,
 269 #endif
 270 #ifdef CFG_ALLOC_DPRAM
 271 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
 272         dpram_init,
 273 #endif
 274 #endif
 275 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 276         board_postclk_init,
 277 #endif
 278         env_init,
 279 #if defined(CONFIG_TQM866M)
 280         get_clocks_866,         /* get CPU and bus clocks according to the environment variable */
 281         sdram_adjust_866,       /* adjust sdram refresh rate according to the new clock */
 282         init_timebase,
 283 #endif
 284         init_baudrate,
 285         serial_init,
 286         console_init_f,
 287         display_options,
 288 #if defined(CONFIG_8260)
 289         prt_8260_rsr,
 290         prt_8260_clks,
 291 #endif /* CONFIG_8260 */
 292         checkcpu,
 293 #if defined(CONFIG_MPC5xxx)
 294         prt_mpc5xxx_clks,
 295 #endif /* CONFIG_MPC5xxx */
 296         checkboard,
 297         INIT_FUNC_WATCHDOG_INIT
 298 #if defined(CONFIG_MISC_INIT_F)
 299         misc_init_f,
 300 #endif
 301         INIT_FUNC_WATCHDOG_RESET
 302 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 303         init_func_i2c,
 304 #endif
 305 #if defined(CONFIG_DTT)         /* Digital Thermometers and Thermostats */
 306         dtt_init,
 307 #endif
 308 #ifdef CONFIG_POST
 309         post_init_f,
 310 #endif
 311         INIT_FUNC_WATCHDOG_RESET
 312         init_func_ram,
 313 #if defined(CFG_DRAM_TEST)
 314         testdram,
 315 #endif /* CFG_DRAM_TEST */
 316         INIT_FUNC_WATCHDOG_RESET
 317
 318         NULL,                   /* Terminate this list */
 319 };
 320
 321 /************************************************************************
 322  *
 323  * This is the first part of the initialization sequence that is
 324  * implemented in C, but still running from ROM.
 325  *
 326  * The main purpose is to provide a (serial) console interface as
 327  * soon as possible (so we can see any error messages), and to
 328  * initialize the RAM so that we can relocate the monitor code to
 329  * RAM.
 330  *
 331  * Be aware of the restrictions: global data is read-only, BSS is not
 332  * initialized, and stack space is limited to a few kB.
 333  *
 334  ************************************************************************
 335  */
 336
 337 void board_init_f (ulong bootflag)
 338 {
 339         DECLARE_GLOBAL_DATA_PTR;
 340
 341         bd_t *bd;
 342         ulong len, addr, addr_sp;
 343         gd_t *id;
 344         init_fnc_t **init_fnc_ptr;
 345 #ifdef CONFIG_PRAM
 346         int i;
 347         ulong reg;
 348         uchar tmp[64];          /* long enough for environment variables */
 349 #endif
 350
 351         /* Pointer is writable since we allocated a register for it */
 352         gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
 353
 354 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
 355         /* Clear initial global data */
 356         memset ((void *) gd, 0, sizeof (gd_t));
 357 #endif
 358
 359         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 360                 if ((*init_fnc_ptr) () != 0) {
 361                         hang ();
 362                 }
 363         }
 364
 365         /*
 366          * Now that we have DRAM mapped and working, we can
 367          * relocate the code and continue running from DRAM.
 368          *
 369          * Reserve memory at end of RAM for (top down in that order):
 370          *  - kernel log buffer
 371          *  - protected RAM
 372          *  - LCD framebuffer
 373          *  - monitor code
 374          *  - board info struct
 375          */
 376         len = (ulong)&_end - CFG_MONITOR_BASE;
 377
 378 #ifndef CONFIG_VERY_BIG_RAM
 379         addr = CFG_SDRAM_BASE + gd->ram_size;
 380 #else
 381         /* only allow stack below 256M */
 382         addr = CFG_SDRAM_BASE +
 383                (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
 384 #endif
 385
 386 #ifdef CONFIG_LOGBUFFER
 387         /* reserve kernel log buffer */
 388         addr -= (LOGBUFF_RESERVE);
 389         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 390 #endif
 391
 392 #ifdef CONFIG_PRAM
 393         /*
 394          * reserve protected RAM
 395          */
 396         i = getenv_r ("pram", tmp, sizeof (tmp));
 397         reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
 398         addr -= (reg << 10);            /* size is in kB */
 399         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 400 #endif /* CONFIG_PRAM */
 401
 402         /* round down to next 4 kB limit */
 403         addr &= ~(4096 - 1);
 404         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 405
 406 #ifdef CONFIG_LCD
 407         /* reserve memory for LCD display (always full pages) */
 408         addr = lcd_setmem (addr);
 409         gd->fb_base = addr;
 410 #endif /* CONFIG_LCD */
 411
 412 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
 413         /* reserve memory for video display (always full pages) */
 414         addr = video_setmem (addr);
 415         gd->fb_base = addr;
 416 #endif /* CONFIG_VIDEO  */
 417
 418         /*
 419          * reserve memory for U-Boot code, data & bss
 420          * round down to next 4 kB limit
 421          */
 422         addr -= len;
 423         addr &= ~(4096 - 1);
 424
 425         debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 426
 427 #ifdef CONFIG_AMIGAONEG3SE
 428         gd->relocaddr = addr;
 429 #endif
 430
 431         /*
 432          * reserve memory for malloc() arena
 433          */
 434         addr_sp = addr - TOTAL_MALLOC_LEN;
 435         debug ("Reserving %dk for malloc() at: %08lx\n",
 436                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 437
 438         /*
 439          * (permanently) allocate a Board Info struct
 440          * and a permanent copy of the "global" data
 441          */
 442         addr_sp -= sizeof (bd_t);
 443         bd = (bd_t *) addr_sp;
 444         gd->bd = bd;
 445         debug ("Reserving %d Bytes for Board Info at: %08lx\n",
 446                         sizeof (bd_t), addr_sp);
 447         addr_sp -= sizeof (gd_t);
 448         id = (gd_t *) addr_sp;
 449         debug ("Reserving %d Bytes for Global Data at: %08lx\n",
 450                         sizeof (gd_t), addr_sp);
 451
 452         /*
 453          * Finally, we set up a new (bigger) stack.
 454          *
 455          * Leave some safety gap for SP, force alignment on 16 byte boundary
 456          * Clear initial stack frame
 457          */
 458         addr_sp -= 16;
 459         addr_sp &= ~0xF;
 460         *((ulong *) addr_sp)-- = 0;
 461         *((ulong *) addr_sp)-- = 0;
 462         debug ("Stack Pointer at: %08lx\n", addr_sp);
 463
 464         /*
 465          * Save local variables to board info struct
 466          */
 467
 468         bd->bi_memstart  = CFG_SDRAM_BASE;      /* start of  DRAM memory        */
 469         bd->bi_memsize   = gd->ram_size;        /* size  of  DRAM memory in bytes */
 470
 471 #ifdef CONFIG_IP860
 472         bd->bi_sramstart = SRAM_BASE;   /* start of  SRAM memory        */
 473         bd->bi_sramsize  = SRAM_SIZE;   /* size  of  SRAM memory        */
 474 #else
 475         bd->bi_sramstart = 0;           /* FIXME */ /* start of  SRAM memory    */
 476         bd->bi_sramsize  = 0;           /* FIXME */ /* size  of  SRAM memory    */
 477 #endif
 478
 479 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
 480     defined(CONFIG_E500)
 481         bd->bi_immr_base = CFG_IMMR;    /* base  of IMMR register     */
 482 #endif
 483 #if defined(CONFIG_MPC5xxx)
 484         bd->bi_mbar_base = CFG_MBAR;    /* base of internal registers */
 485 #endif
 486
 487         bd->bi_bootflags = bootflag;    /* boot / reboot flag (for LynxOS)    */
 488
 489         WATCHDOG_RESET ();
 490         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 491         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 492 #if defined(CONFIG_8260) || defined(CONFIG_MPC8560)
 493         bd->bi_cpmfreq = gd->cpm_clk;
 494         bd->bi_brgfreq = gd->brg_clk;
 495         bd->bi_sccfreq = gd->scc_clk;
 496         bd->bi_vco     = gd->vco_out;
 497 #endif /* CONFIG_8260 */
 498 #if defined(CONFIG_MPC5xxx)
 499         bd->bi_ipbfreq = gd->ipb_clk;
 500         bd->bi_pcifreq = gd->pci_clk;
 501 #endif /* CONFIG_MPC5xxx */
 502         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 503
 504 #ifdef CFG_EXTBDINFO
 505         strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
 506         strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
 507
 508         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 509         bd->bi_plb_busfreq = gd->bus_clk;
 510 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 511         bd->bi_pci_busfreq = get_PCI_freq ();
 512         bd->bi_opbfreq = get_OPB_freq ();
 513 #elif defined(CONFIG_XILINX_ML300)
 514         bd->bi_pci_busfreq = get_PCI_freq ();
 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 #if defined(CONFIG_BOARD_EARLY_INIT_R)
 573         board_early_init_r ();
 574 #endif
 575
 576         gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
 577
 578         monitor_flash_len = (ulong)&__init_end - dest_addr;
 579
 580         /*
 581          * We have to relocate the command table manually
 582          */
 583         for (cmdtp = &__u_boot_cmd_start; cmdtp !=  &__u_boot_cmd_end; cmdtp++) {
 584                 ulong addr;
 585                 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
 586 #if 0
 587                 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
 588                                 cmdtp->name, (ulong) (cmdtp->cmd), addr);
 589 #endif
 590                 cmdtp->cmd =
 591                         (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
 592
 593                 addr = (ulong)(cmdtp->name) + gd->reloc_off;
 594                 cmdtp->name = (char *)addr;
 595
 596                 if (cmdtp->usage) {
 597                         addr = (ulong)(cmdtp->usage) + gd->reloc_off;
 598                         cmdtp->usage = (char *)addr;
 599                 }
 600 #ifdef  CFG_LONGHELP
 601                 if (cmdtp->help) {
 602                         addr = (ulong)(cmdtp->help) + gd->reloc_off;
 603                         cmdtp->help = (char *)addr;
 604                 }
 605 #endif
 606         }
 607         /* there are some other pointer constants we must deal with */
 608 #ifndef CFG_ENV_IS_NOWHERE
 609         env_name_spec += gd->reloc_off;
 610 #endif
 611
 612         WATCHDOG_RESET ();
 613
 614 #ifdef CONFIG_LOGBUFFER
 615         logbuff_init_ptrs ();
 616 #endif
 617 #ifdef CONFIG_POST
 618         post_output_backlog ();
 619         post_reloc ();
 620 #endif
 621
 622         WATCHDOG_RESET();
 623
 624 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
 625         icache_enable ();       /* it's time to enable the instruction cache */
 626 #endif
 627
 628 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
 629         unlock_ram_in_cache();  /* it's time to unlock D-cache in e500 */
 630 #endif
 631
 632 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
 633         /*
 634          * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
 635          * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
 636          * bridge there.
 637          */
 638         pci_init ();
 639 #endif
 640 #if defined(CONFIG_BAB7xx)
 641         /*
 642          * Initialise the ISA bridge
 643          */
 644         initialise_w83c553f ();
 645 #endif
 646
 647         asm ("sync ; isync");
 648
 649         /*
 650          * Setup trap handlers
 651          */
 652         trap_init (dest_addr);
 653
 654 #if !defined(CFG_NO_FLASH)
 655         puts ("FLASH: ");
 656
 657         if ((flash_size = flash_init ()) > 0) {
 658 # ifdef CFG_FLASH_CHECKSUM
 659                 print_size (flash_size, "");
 660                 /*
 661                  * Compute and print flash CRC if flashchecksum is set to 'y'
 662                  *
 663                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 664                  */
 665                 s = getenv ("flashchecksum");
 666                 if (s && (*s == 'y')) {
 667                         printf ("  CRC: %08lX",
 668                                 crc32 (0, (const unsigned char *) CFG_FLASH_BASE, flash_size)
 669                         );
 670                 }
 671                 putc ('\n');
 672 # else  /* !CFG_FLASH_CHECKSUM */
 673                 print_size (flash_size, "\n");
 674 # endif /* CFG_FLASH_CHECKSUM */
 675         } else {
 676                 puts (failed);
 677                 hang ();
 678         }
 679
 680         bd->bi_flashstart = CFG_FLASH_BASE;     /* update start of FLASH memory    */
 681         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 682 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
 683         /* flash mapped at end of memory map */
 684         bd->bi_flashoffset = TEXT_BASE + flash_size;
 685 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
 686         bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor  */
 687 # else
 688         bd->bi_flashoffset = 0;
 689 # endif
 690 #else   /* CFG_NO_FLASH */
 691
 692         bd->bi_flashsize = 0;
 693         bd->bi_flashstart = 0;
 694         bd->bi_flashoffset = 0;
 695 #endif /* !CFG_NO_FLASH */
 696
 697         WATCHDOG_RESET ();
 698
 699         /* initialize higher level parts of CPU like time base and timers */
 700         cpu_init_r ();
 701
 702         WATCHDOG_RESET ();
 703
 704         /* initialize malloc() area */
 705         mem_malloc_init ();
 706         malloc_bin_reloc ();
 707
 708 #ifdef CONFIG_SPI
 709 # if !defined(CFG_ENV_IS_IN_EEPROM)
 710         spi_init_f ();
 711 # endif
 712         spi_init_r ();
 713 #endif
 714
 715         /* relocate environment function pointers etc. */
 716         env_relocate ();
 717
 718         /*
 719          * Fill in missing fields of bd_info.
 720          * We do this here, where we have "normal" access to the
 721          * environment; we used to do this still running from ROM,
 722          * where had to use getenv_r(), which can be pretty slow when
 723          * the environment is in EEPROM.
 724          */
 725
 726 #if defined(CFG_EXTBDINFO)
 727 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 728 #if defined(CONFIG_I2CFAST)
 729         /*
 730          * set bi_iic_fast for linux taking environment variable
 731          * "i2cfast" into account
 732          */
 733         {
 734                 char *s = getenv ("i2cfast");
 735                 if (s && ((*s == 'y') || (*s == 'Y'))) {
 736                         bd->bi_iic_fast[0] = 1;
 737                         bd->bi_iic_fast[1] = 1;
 738                 } else {
 739                         bd->bi_iic_fast[0] = 0;
 740                         bd->bi_iic_fast[1] = 0;
 741                 }
 742         }
 743 #else
 744         bd->bi_iic_fast[0] = 0;
 745         bd->bi_iic_fast[1] = 0;
 746 #endif  /* CONFIG_I2CFAST */
 747 #endif  /* CONFIG_405GP, CONFIG_405EP */
 748 #endif  /* CFG_EXTBDINFO */
 749
 750         s = getenv ("ethaddr");
 751 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
 752         if (s == NULL)
 753                 board_get_enetaddr (bd->bi_enetaddr);
 754         else
 755 #endif
 756                 for (i = 0; i < 6; ++i) {
 757                         bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 758                         if (s)
 759                                 s = (*e) ? e + 1 : e;
 760                 }
 761 #ifdef  CONFIG_HERMES
 762         if ((gd->board_type >> 16) == 2)
 763                 bd->bi_ethspeed = gd->board_type & 0xFFFF;
 764         else
 765                 bd->bi_ethspeed = 0xFFFF;
 766 #endif
 767
 768 #ifdef CONFIG_NX823
 769         load_sernum_ethaddr ();
 770 #endif
 771
 772 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62) || defined(CONFIG_PPCHAMELEONEVB) || \
 773     defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS) || defined(CONFIG_440_GX)
 774         /* handle the 2nd ethernet address */
 775
 776         s = getenv ("eth1addr");
 777
 778         for (i = 0; i < 6; ++i) {
 779                 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 780                 if (s)
 781                         s = (*e) ? e + 1 : e;
 782         }
 783 #endif
 784 #if defined(CFG_GT_6426x) || defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS) || \
 785         defined(CONFIG_440_GX)
 786         /* handle the 3rd ethernet address */
 787
 788         s = getenv ("eth2addr");
 789 #if defined(CONFIG_XPEDITE1K)
 790         if (s == NULL)
 791                 board_get_enetaddr(bd->bi_enet2addr);
 792         else
 793 #endif
 794         for (i = 0; i < 6; ++i) {
 795                 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 796                 if (s)
 797                         s = (*e) ? e + 1 : e;
 798         }
 799 #endif
 800
 801 #if defined(CONFIG_440_GX)
 802         /* handle 4th ethernet address */
 803         s = getenv("eth3addr");
 804 #if defined(CONFIG_XPEDITE1K)
 805         if (s == NULL)
 806                 board_get_enetaddr(bd->bi_enet3addr);
 807         else
 808 #endif
 809         for (i = 0; i < 6; ++i) {
 810                 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 811                 if (s)
 812                         s = (*e) ? e + 1 : e;
 813         }
 814 #endif
 815
 816 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
 817     defined(CONFIG_CCM)
 818         load_sernum_ethaddr ();
 819 #endif
 820         /* IP Address */
 821         bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 822
 823         WATCHDOG_RESET ();
 824
 825 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
 826         /*
 827          * Do pci configuration
 828          */
 829         pci_init ();
 830 #endif
 831
 832 /** leave this here (after malloc(), environment and PCI are working) **/
 833         /* Initialize devices */
 834         devices_init ();
 835
 836         /* Initialize the jump table for applications */
 837         jumptable_init ();
 838
 839         /* Initialize the console (after the relocation and devices init) */
 840         console_init_r ();
 841
 842 #if defined(CONFIG_CCM)         || \
 843     defined(CONFIG_COGENT)      || \
 844     defined(CONFIG_CPCI405)     || \
 845     defined(CONFIG_EVB64260)    || \
 846     defined(CONFIG_KUP4K)       || \
 847     defined(CONFIG_KUP4X)       || \
 848     defined(CONFIG_LWMON)       || \
 849     defined(CONFIG_PCU_E)       || \
 850     defined(CONFIG_W7O)         || \
 851     defined(CONFIG_MISC_INIT_R)
 852         /* miscellaneous platform dependent initialisations */
 853         misc_init_r ();
 854 #endif
 855
 856 #ifdef  CONFIG_HERMES
 857         if (bd->bi_ethspeed != 0xFFFF)
 858                 hermes_start_lxt980 ((int) bd->bi_ethspeed);
 859 #endif
 860
 861 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
 862     defined(CONFIG_CCM)         || \
 863     defined(CONFIG_ELPT860)     || \
 864     defined(CONFIG_EP8260)      || \
 865     defined(CONFIG_IP860)       || \
 866     defined(CONFIG_IVML24)      || \
 867     defined(CONFIG_IVMS8)       || \
 868     defined(CONFIG_LWMON)       || \
 869     defined(CONFIG_MPC8260ADS)  || \
 870     defined(CONFIG_MPC8266ADS)  || \
 871     defined(CONFIG_MPC8560ADS)  || \
 872     defined(CONFIG_PCU_E)       || \
 873     defined(CONFIG_RPXSUPER)    || \
 874     defined(CONFIG_STXGP3)      || \
 875     defined(CONFIG_SPD823TS)    )
 876
 877         WATCHDOG_RESET ();
 878         debug ("Reset Ethernet PHY\n");
 879         reset_phy ();
 880 #endif
 881
 882 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
 883         WATCHDOG_RESET ();
 884         puts ("KGDB:  ");
 885         kgdb_init ();
 886 #endif
 887
 888         debug ("U-Boot relocated to %08lx\n", dest_addr);
 889
 890         /*
 891          * Enable Interrupts
 892          */
 893         interrupt_init ();
 894
 895         /* Must happen after interrupts are initialized since
 896          * an irq handler gets installed
 897          */
 898 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
 899         serial_buffered_init();
 900 #endif
 901
 902 #ifdef CONFIG_STATUS_LED
 903         status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
 904 #endif
 905
 906         udelay (20);
 907
 908         set_timer (0);
 909
 910         /* Initialize from environment */
 911         if ((s = getenv ("loadaddr")) != NULL) {
 912                 load_addr = simple_strtoul (s, NULL, 16);
 913         }
 914 #if (CONFIG_COMMANDS & CFG_CMD_NET)
 915         if ((s = getenv ("bootfile")) != NULL) {
 916                 copy_filename (BootFile, s, sizeof (BootFile));
 917         }
 918 #endif /* CFG_CMD_NET */
 919
 920         WATCHDOG_RESET ();
 921
 922 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
 923         WATCHDOG_RESET ();
 924         puts ("SCSI:  ");
 925         scsi_init ();
 926 #endif
 927
 928 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
 929         WATCHDOG_RESET ();
 930         puts ("DOC:   ");
 931         doc_init ();
 932 #endif
 933
 934 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 935         WATCHDOG_RESET ();
 936         puts ("NAND:");
 937         nand_init();            /* go init the NAND */
 938 #endif
 939
 940 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
 941         WATCHDOG_RESET ();
 942         puts ("Net:   ");
 943         eth_initialize (bd);
 944 #endif
 945
 946 #ifdef CONFIG_POST
 947         post_run (NULL, POST_RAM | post_bootmode_get(0));
 948 #endif
 949
 950 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
 951         WATCHDOG_RESET ();
 952         puts ("PCMCIA:");
 953         pcmcia_init ();
 954 #endif
 955
 956 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
 957         WATCHDOG_RESET ();
 958 # ifdef CONFIG_IDE_8xx_PCCARD
 959         puts ("PCMCIA:");
 960 # else
 961         puts ("IDE:   ");
 962 #endif
 963         ide_init ();
 964 #endif /* CFG_CMD_IDE */
 965
 966 #ifdef CONFIG_LAST_STAGE_INIT
 967         WATCHDOG_RESET ();
 968         /*
 969          * Some parts can be only initialized if all others (like
 970          * Interrupts) are up and running (i.e. the PC-style ISA
 971          * keyboard).
 972          */
 973         last_stage_init ();
 974 #endif
 975
 976 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
 977         WATCHDOG_RESET ();
 978         bedbug_init ();
 979 #endif
 980
 981 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 982         /*
 983          * Export available size of memory for Linux,
 984          * taking into account the protected RAM at top of memory
 985          */
 986         {
 987                 ulong pram;
 988                 uchar memsz[32];
 989 #ifdef CONFIG_PRAM
 990                 char *s;
 991
 992                 if ((s = getenv ("pram")) != NULL) {
 993                         pram = simple_strtoul (s, NULL, 10);
 994                 } else {
 995                         pram = CONFIG_PRAM;
 996                 }
 997 #else
 998                 pram=0;
 999 #endif
1000 #ifdef CONFIG_LOGBUFFER
1001                 /* Also take the logbuffer into account (pram is in kB) */
1002                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1003 #endif
1004                 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1005                 setenv ("mem", memsz);
1006         }
1007 #endif
1008
1009 #ifdef CONFIG_PS2KBD
1010         puts ("PS/2:  ");
1011         kbd_init();
1012 #endif
1013
1014 #ifdef CONFIG_MODEM_SUPPORT
1015  {
1016          extern int do_mdm_init;
1017          do_mdm_init = gd->do_mdm_init;
1018  }
1019 #endif
1020
1021         /* Initialization complete - start the monitor */
1022
1023         /* main_loop() can return to retry autoboot, if so just run it again. */
1024         for (;;) {
1025                 WATCHDOG_RESET ();
1026                 main_loop ();
1027         }
1028
1029         /* NOTREACHED - no way out of command loop except booting */
1030 }
1031
1032 void hang (void)
1033 {
1034         puts ("### ERROR ### Please RESET the board ###\n");
1035 #ifdef CONFIG_SHOW_BOOT_PROGRESS
1036         show_boot_progress(-30);
1037 #endif
1038         for (;;);
1039 }
1040
1041 #ifdef CONFIG_MODEM_SUPPORT
1042 /* called from main loop (common/main.c) */
1043 extern void  dbg(const char *fmt, ...);
1044 int mdm_init (void)
1045 {
1046         char env_str[16];
1047         char *init_str;
1048         int i;
1049         extern char console_buffer[];
1050         static inline void mdm_readline(char *buf, int bufsiz);
1051         extern void enable_putc(void);
1052         extern int hwflow_onoff(int);
1053
1054         enable_putc(); /* enable serial_putc() */
1055
1056 #ifdef CONFIG_HWFLOW
1057         init_str = getenv("mdm_flow_control");
1058         if (init_str && (strcmp(init_str, "rts/cts") == 0))
1059                 hwflow_onoff (1);
1060         else
1061                 hwflow_onoff(-1);
1062 #endif
1063
1064         for (i = 1;;i++) {
1065                 sprintf(env_str, "mdm_init%d", i);
1066                 if ((init_str = getenv(env_str)) != NULL) {
1067                         serial_puts(init_str);
1068                         serial_puts("\n");
1069                         for(;;) {
1070                                 mdm_readline(console_buffer, CFG_CBSIZE);
1071                                 dbg("ini%d: [%s]", i, console_buffer);
1072
1073                                 if ((strcmp(console_buffer, "OK") == 0) ||
1074                                         (strcmp(console_buffer, "ERROR") == 0)) {
1075                                         dbg("ini%d: cmd done", i);
1076                                         break;
1077                                 } else /* in case we are originating call ... */
1078                                         if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1079                                                 dbg("ini%d: connect", i);
1080                                                 return 0;
1081                                         }
1082                         }
1083                 } else
1084                         break; /* no init string - stop modem init */
1085
1086                 udelay(100000);
1087         }
1088
1089         udelay(100000);
1090
1091         /* final stage - wait for connect */
1092         for(;i > 1;) { /* if 'i' > 1 - wait for connection
1093                                   message from modem */
1094                 mdm_readline(console_buffer, CFG_CBSIZE);
1095                 dbg("ini_f: [%s]", console_buffer);
1096                 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1097                         dbg("ini_f: connected");
1098                         return 0;
1099                 }
1100         }
1101
1102         return 0;
1103 }
1104
1105 /* 'inline' - We have to do it fast */
1106 static inline void mdm_readline(char *buf, int bufsiz)
1107 {
1108         char c;
1109         char *p;
1110         int n;
1111
1112         n = 0;
1113         p = buf;
1114         for(;;) {
1115                 c = serial_getc();
1116
1117                 /*              dbg("(%c)", c); */
1118
1119                 switch(c) {
1120                 case '\r':
1121                         break;
1122                 case '\n':
1123                         *p = '\0';
1124                         return;
1125
1126                 default:
1127                         if(n++ > bufsiz) {
1128                                 *p = '\0';
1129                                 return; /* sanity check */
1130                         }
1131                         *p = c;
1132                         p++;
1133                         break;
1134                 }
1135         }
1136 }
1137 #endif
1138
1139 #if 0 /* We could use plain global data, but the resulting code is bigger */
1140 /*
1141  * Pointer to initial global data area
1142  *
1143  * Here we initialize it.
1144  */
1145 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
1146 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
1147 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1148 #endif  /* 0 */
1149
1150 /************************************************************************/