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_EARLY_INIT_F)
 261         board_early_init_f,
 262 #endif
 263
 264 #if !defined(CONFIG_TQM866M)
 265         get_clocks,             /* get CPU and bus clocks (etc.) */
 266         init_timebase,
 267 #endif
 268 #ifdef CFG_ALLOC_DPRAM
 269 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
 270         dpram_init,
 271 #endif
 272 #endif
 273 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 274         board_postclk_init,
 275 #endif
 276         env_init,
 277 #if defined(CONFIG_TQM866M)
 278         get_clocks_866,         /* get CPU and bus clocks according to the environment variable */
 279         sdram_adjust_866,       /* adjust sdram refresh rate according to the new clock */
 280         init_timebase,
 281 #endif
 282         init_baudrate,
 283         serial_init,
 284         console_init_f,
 285         display_options,
 286 #if defined(CONFIG_8260)
 287         prt_8260_rsr,
 288         prt_8260_clks,
 289 #endif /* CONFIG_8260 */
 290         checkcpu,
 291 #if defined(CONFIG_MPC5xxx)
 292         prt_mpc5xxx_clks,
 293 #endif /* CONFIG_MPC5xxx */
 294         checkboard,
 295         INIT_FUNC_WATCHDOG_INIT
 296 #if defined(CONFIG_MISC_INIT_F)
 297         misc_init_f,
 298 #endif
 299         INIT_FUNC_WATCHDOG_RESET
 300 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 301         init_func_i2c,
 302 #endif
 303 #if defined(CONFIG_DTT)         /* Digital Thermometers and Thermostats */
 304         dtt_init,
 305 #endif
 306 #ifdef CONFIG_POST
 307         post_init_f,
 308 #endif
 309         INIT_FUNC_WATCHDOG_RESET
 310         init_func_ram,
 311 #if defined(CFG_DRAM_TEST)
 312         testdram,
 313 #endif /* CFG_DRAM_TEST */
 314         INIT_FUNC_WATCHDOG_RESET
 315
 316         NULL,                   /* Terminate this list */
 317 };
 318
 319 /************************************************************************
 320  *
 321  * This is the first part of the initialization sequence that is
 322  * implemented in C, but still running from ROM.
 323  *
 324  * The main purpose is to provide a (serial) console interface as
 325  * soon as possible (so we can see any error messages), and to
 326  * initialize the RAM so that we can relocate the monitor code to
 327  * RAM.
 328  *
 329  * Be aware of the restrictions: global data is read-only, BSS is not
 330  * initialized, and stack space is limited to a few kB.
 331  *
 332  ************************************************************************
 333  */
 334
 335 void board_init_f (ulong bootflag)
 336 {
 337         DECLARE_GLOBAL_DATA_PTR;
 338
 339         bd_t *bd;
 340         ulong len, addr, addr_sp;
 341         gd_t *id;
 342         init_fnc_t **init_fnc_ptr;
 343 #ifdef CONFIG_PRAM
 344         int i;
 345         ulong reg;
 346         uchar tmp[64];          /* long enough for environment variables */
 347 #endif
 348
 349         /* Pointer is writable since we allocated a register for it */
 350         gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
 351
 352 #if !(defined(CONFIG_8260) || defined(CONFIG_MPC8560))
 353         /* Clear initial global data */
 354         memset ((void *) gd, 0, sizeof (gd_t));
 355 #endif
 356
 357         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 358                 if ((*init_fnc_ptr) () != 0) {
 359                         hang ();
 360                 }
 361         }
 362
 363         /*
 364          * Now that we have DRAM mapped and working, we can
 365          * relocate the code and continue running from DRAM.
 366          *
 367          * Reserve memory at end of RAM for (top down in that order):
 368          *  - kernel log buffer
 369          *  - protected RAM
 370          *  - LCD framebuffer
 371          *  - monitor code
 372          *  - board info struct
 373          */
 374         len = (ulong)&_end - CFG_MONITOR_BASE;
 375
 376 #ifndef CONFIG_VERY_BIG_RAM
 377         addr = CFG_SDRAM_BASE + gd->ram_size;
 378 #else
 379         /* only allow stack below 256M */
 380         addr = CFG_SDRAM_BASE +
 381                (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
 382 #endif
 383
 384 #ifdef CONFIG_LOGBUFFER
 385         /* reserve kernel log buffer */
 386         addr -= (LOGBUFF_RESERVE);
 387         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 388 #endif
 389
 390 #ifdef CONFIG_PRAM
 391         /*
 392          * reserve protected RAM
 393          */
 394         i = getenv_r ("pram", tmp, sizeof (tmp));
 395         reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
 396         addr -= (reg << 10);            /* size is in kB */
 397         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 398 #endif /* CONFIG_PRAM */
 399
 400         /* round down to next 4 kB limit */
 401         addr &= ~(4096 - 1);
 402         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 403
 404 #ifdef CONFIG_LCD
 405         /* reserve memory for LCD display (always full pages) */
 406         addr = lcd_setmem (addr);
 407         gd->fb_base = addr;
 408 #endif /* CONFIG_LCD */
 409
 410 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
 411         /* reserve memory for video display (always full pages) */
 412         addr = video_setmem (addr);
 413         gd->fb_base = addr;
 414 #endif /* CONFIG_VIDEO  */
 415
 416         /*
 417          * reserve memory for U-Boot code, data & bss
 418          * round down to next 4 kB limit
 419          */
 420         addr -= len;
 421         addr &= ~(4096 - 1);
 422
 423         debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 424
 425 #ifdef CONFIG_AMIGAONEG3SE
 426         gd->relocaddr = addr;
 427 #endif
 428
 429         /*
 430          * reserve memory for malloc() arena
 431          */
 432         addr_sp = addr - TOTAL_MALLOC_LEN;
 433         debug ("Reserving %dk for malloc() at: %08lx\n",
 434                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 435
 436         /*
 437          * (permanently) allocate a Board Info struct
 438          * and a permanent copy of the "global" data
 439          */
 440         addr_sp -= sizeof (bd_t);
 441         bd = (bd_t *) addr_sp;
 442         gd->bd = bd;
 443         debug ("Reserving %d Bytes for Board Info at: %08lx\n",
 444                         sizeof (bd_t), addr_sp);
 445         addr_sp -= sizeof (gd_t);
 446         id = (gd_t *) addr_sp;
 447         debug ("Reserving %d Bytes for Global Data at: %08lx\n",
 448                         sizeof (gd_t), addr_sp);
 449
 450         /*
 451          * Finally, we set up a new (bigger) stack.
 452          *
 453          * Leave some safety gap for SP, force alignment on 16 byte boundary
 454          * Clear initial stack frame
 455          */
 456         addr_sp -= 16;
 457         addr_sp &= ~0xF;
 458         *((ulong *) addr_sp)-- = 0;
 459         *((ulong *) addr_sp)-- = 0;
 460         debug ("Stack Pointer at: %08lx\n", addr_sp);
 461
 462         /*
 463          * Save local variables to board info struct
 464          */
 465
 466         bd->bi_memstart  = CFG_SDRAM_BASE;      /* start of  DRAM memory        */
 467         bd->bi_memsize   = gd->ram_size;        /* size  of  DRAM memory in bytes */
 468
 469 #ifdef CONFIG_IP860
 470         bd->bi_sramstart = SRAM_BASE;   /* start of  SRAM memory        */
 471         bd->bi_sramsize  = SRAM_SIZE;   /* size  of  SRAM memory        */
 472 #else
 473         bd->bi_sramstart = 0;           /* FIXME */ /* start of  SRAM memory    */
 474         bd->bi_sramsize  = 0;           /* FIXME */ /* size  of  SRAM memory    */
 475 #endif
 476
 477 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
 478     defined(CONFIG_E500)
 479         bd->bi_immr_base = CFG_IMMR;    /* base  of IMMR register     */
 480 #endif
 481 #if defined(CONFIG_MPC5xxx)
 482         bd->bi_mbar_base = CFG_MBAR;    /* base of internal registers */
 483 #endif
 484
 485         bd->bi_bootflags = bootflag;    /* boot / reboot flag (for LynxOS)    */
 486
 487         WATCHDOG_RESET ();
 488         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 489         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 490 #if defined(CONFIG_8260) || defined(CONFIG_MPC8560)
 491         bd->bi_cpmfreq = gd->cpm_clk;
 492         bd->bi_brgfreq = gd->brg_clk;
 493         bd->bi_sccfreq = gd->scc_clk;
 494         bd->bi_vco     = gd->vco_out;
 495 #endif /* CONFIG_8260 */
 496 #if defined(CONFIG_MPC5xxx)
 497         bd->bi_ipbfreq = gd->ipb_clk;
 498         bd->bi_pcifreq = gd->pci_clk;
 499 #endif /* CONFIG_MPC5xxx */
 500         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 501
 502 #ifdef CFG_EXTBDINFO
 503         strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
 504         strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
 505
 506         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 507         bd->bi_plb_busfreq = gd->bus_clk;
 508 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 509         bd->bi_pci_busfreq = get_PCI_freq ();
 510
 511 #ifdef CFG_OPB_FREQ
 512         bd->bi_opbfreq = CFG_OPB_FREQ;
 513 #else
 514         bd->bi_opbfreq = 50000000;
 515 #endif
 516         bd->bi_iic_fast[0] = 0;
 517         bd->bi_iic_fast[1] = 0;
 518 #elif defined(CONFIG_XILINX_ML300)
 519         bd->bi_pci_busfreq = get_PCI_freq ();
 520 #endif
 521 #endif
 522
 523         debug ("New Stack Pointer is: %08lx\n", addr_sp);
 524
 525         WATCHDOG_RESET ();
 526
 527 #ifdef CONFIG_POST
 528         post_bootmode_init();
 529         post_run (NULL, POST_ROM | post_bootmode_get(0));
 530 #endif
 531
 532         WATCHDOG_RESET();
 533
 534         memcpy (id, (void *)gd, sizeof (gd_t));
 535
 536         relocate_code (addr_sp, id, addr);
 537
 538         /* NOTREACHED - relocate_code() does not return */
 539 }
 540
 541
 542 /************************************************************************
 543  *
 544  * This is the next part if the initialization sequence: we are now
 545  * running from RAM and have a "normal" C environment, i. e. global
 546  * data can be written, BSS has been cleared, the stack size in not
 547  * that critical any more, etc.
 548  *
 549  ************************************************************************
 550  */
 551
 552 void board_init_r (gd_t *id, ulong dest_addr)
 553 {
 554         DECLARE_GLOBAL_DATA_PTR;
 555         cmd_tbl_t *cmdtp;
 556         char *s, *e;
 557         bd_t *bd;
 558         int i;
 559         extern void malloc_bin_reloc (void);
 560 #ifndef CFG_ENV_IS_NOWHERE
 561         extern char * env_name_spec;
 562 #endif
 563
 564 #ifndef CFG_NO_FLASH
 565         ulong flash_size;
 566 #endif
 567
 568         gd = id;                /* initialize RAM version of global data */
 569         bd = gd->bd;
 570
 571         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 572
 573         debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 574
 575         WATCHDOG_RESET ();
 576
 577 #if defined(CONFIG_BOARD_EARLY_INIT_R)
 578         board_early_init_r ();
 579 #endif
 580
 581         gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
 582
 583         monitor_flash_len = (ulong)&__init_end - dest_addr;
 584
 585         /*
 586          * We have to relocate the command table manually
 587          */
 588         for (cmdtp = &__u_boot_cmd_start; cmdtp !=  &__u_boot_cmd_end; cmdtp++) {
 589                 ulong addr;
 590                 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
 591 #if 0
 592                 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
 593                                 cmdtp->name, (ulong) (cmdtp->cmd), addr);
 594 #endif
 595                 cmdtp->cmd =
 596                         (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
 597
 598                 addr = (ulong)(cmdtp->name) + gd->reloc_off;
 599                 cmdtp->name = (char *)addr;
 600
 601                 if (cmdtp->usage) {
 602                         addr = (ulong)(cmdtp->usage) + gd->reloc_off;
 603                         cmdtp->usage = (char *)addr;
 604                 }
 605 #ifdef  CFG_LONGHELP
 606                 if (cmdtp->help) {
 607                         addr = (ulong)(cmdtp->help) + gd->reloc_off;
 608                         cmdtp->help = (char *)addr;
 609                 }
 610 #endif
 611         }
 612         /* there are some other pointer constants we must deal with */
 613 #ifndef CFG_ENV_IS_NOWHERE
 614         env_name_spec += gd->reloc_off;
 615 #endif
 616
 617         WATCHDOG_RESET ();
 618
 619 #ifdef CONFIG_LOGBUFFER
 620         logbuff_init_ptrs ();
 621 #endif
 622 #ifdef CONFIG_POST
 623         post_output_backlog ();
 624         post_reloc ();
 625 #endif
 626
 627         WATCHDOG_RESET();
 628
 629 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
 630         icache_enable ();       /* it's time to enable the instruction cache */
 631 #endif
 632
 633 #if defined(CFG_INIT_RAM_LOCK) && defined(CONFIG_E500)
 634         unlock_ram_in_cache();  /* it's time to unlock D-cache in e500 */
 635 #endif
 636
 637 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
 638         /*
 639          * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
 640          * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
 641          * bridge there.
 642          */
 643         pci_init ();
 644 #endif
 645 #if defined(CONFIG_BAB7xx)
 646         /*
 647          * Initialise the ISA bridge
 648          */
 649         initialise_w83c553f ();
 650 #endif
 651
 652         asm ("sync ; isync");
 653
 654         /*
 655          * Setup trap handlers
 656          */
 657         trap_init (dest_addr);
 658
 659 #if !defined(CFG_NO_FLASH)
 660         puts ("FLASH: ");
 661
 662         if ((flash_size = flash_init ()) > 0) {
 663 # ifdef CFG_FLASH_CHECKSUM
 664                 print_size (flash_size, "");
 665                 /*
 666                  * Compute and print flash CRC if flashchecksum is set to 'y'
 667                  *
 668                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 669                  */
 670                 s = getenv ("flashchecksum");
 671                 if (s && (*s == 'y')) {
 672                         printf ("  CRC: %08lX",
 673                                         crc32 (0,
 674                                                    (const unsigned char *) CFG_FLASH_BASE,
 675                                                    flash_size)
 676                                         );
 677                 }
 678                 putc ('\n');
 679 # else  /* !CFG_FLASH_CHECKSUM */
 680                 print_size (flash_size, "\n");
 681 # endif /* CFG_FLASH_CHECKSUM */
 682         } else {
 683                 puts (failed);
 684                 hang ();
 685         }
 686
 687         bd->bi_flashstart = CFG_FLASH_BASE;     /* update start of FLASH memory    */
 688         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 689 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
 690         bd->bi_flashoffset = 0;
 691 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
 692         bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor  */
 693 # else
 694         bd->bi_flashoffset = 0;
 695 # endif
 696 #else   /* CFG_NO_FLASH */
 697
 698         bd->bi_flashsize = 0;
 699         bd->bi_flashstart = 0;
 700         bd->bi_flashoffset = 0;
 701 #endif /* !CFG_NO_FLASH */
 702
 703         WATCHDOG_RESET ();
 704
 705         /* initialize higher level parts of CPU like time base and timers */
 706         cpu_init_r ();
 707
 708         WATCHDOG_RESET ();
 709
 710         /* initialize malloc() area */
 711         mem_malloc_init ();
 712         malloc_bin_reloc ();
 713
 714 #ifdef CONFIG_SPI
 715 # if !defined(CFG_ENV_IS_IN_EEPROM)
 716         spi_init_f ();
 717 # endif
 718         spi_init_r ();
 719 #endif
 720
 721         /* relocate environment function pointers etc. */
 722         env_relocate ();
 723
 724         /*
 725          * Fill in missing fields of bd_info.
 726          * We do this here, where we have "normal" access to the
 727          * environment; we used to do this still running from ROM,
 728          * where had to use getenv_r(), which can be pretty slow when
 729          * the environment is in EEPROM.
 730          */
 731         s = getenv ("ethaddr");
 732 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
 733         if (s == NULL)
 734                 board_get_enetaddr (bd->bi_enetaddr);
 735         else
 736 #endif
 737                 for (i = 0; i < 6; ++i) {
 738                         bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 739                         if (s)
 740                                 s = (*e) ? e + 1 : e;
 741                 }
 742 #ifdef  CONFIG_HERMES
 743         if ((gd->board_type >> 16) == 2)
 744                 bd->bi_ethspeed = gd->board_type & 0xFFFF;
 745         else
 746                 bd->bi_ethspeed = 0xFFFF;
 747 #endif
 748
 749 #ifdef CONFIG_NX823
 750         load_sernum_ethaddr ();
 751 #endif
 752
 753 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62) || defined(CONFIG_PPCHAMELEONEVB) || \
 754     defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS) || defined(CONFIG_440_GX)
 755         /* handle the 2nd ethernet address */
 756
 757         s = getenv ("eth1addr");
 758
 759         for (i = 0; i < 6; ++i) {
 760                 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 761                 if (s)
 762                         s = (*e) ? e + 1 : e;
 763         }
 764 #endif
 765 #if defined(CFG_GT_6426x) || defined(CONFIG_MPC8540ADS) || defined(CONFIG_MPC8560ADS) || \
 766         defined(CONFIG_440_GX)
 767         /* handle the 3rd ethernet address */
 768
 769         s = getenv ("eth2addr");
 770 #if defined(CONFIG_XPEDITE1K)
 771         if (s == NULL)
 772                 board_get_enetaddr(bd->bi_enet2addr);
 773         else
 774 #endif
 775         for (i = 0; i < 6; ++i) {
 776                 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 777                 if (s)
 778                         s = (*e) ? e + 1 : e;
 779         }
 780 #endif
 781
 782 #if defined(CONFIG_440_GX)
 783         /* handle 4th ethernet address */
 784         s = getenv("eth3addr");
 785 #if defined(CONFIG_XPEDITE1K)
 786         if (s == NULL)
 787                 board_get_enetaddr(bd->bi_enet3addr);
 788         else
 789 #endif
 790         for (i = 0; i < 6; ++i) {
 791                 bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 792                 if (s)
 793                         s = (*e) ? e + 1 : e;
 794         }
 795 #endif
 796
 797 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
 798     defined(CONFIG_CCM)
 799         load_sernum_ethaddr ();
 800 #endif
 801         /* IP Address */
 802         bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 803
 804         WATCHDOG_RESET ();
 805
 806 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
 807         /*
 808          * Do pci configuration
 809          */
 810         pci_init ();
 811 #endif
 812
 813 /** leave this here (after malloc(), environment and PCI are working) **/
 814         /* Initialize devices */
 815         devices_init ();
 816
 817         /* Initialize the jump table for applications */
 818         jumptable_init ();
 819
 820         /* Initialize the console (after the relocation and devices init) */
 821         console_init_r ();
 822
 823 #if defined(CONFIG_CCM)         || \
 824     defined(CONFIG_COGENT)      || \
 825     defined(CONFIG_CPCI405)     || \
 826     defined(CONFIG_EVB64260)    || \
 827     defined(CONFIG_KUP4K)       || \
 828     defined(CONFIG_LWMON)       || \
 829     defined(CONFIG_PCU_E)       || \
 830     defined(CONFIG_W7O)         || \
 831     defined(CONFIG_MISC_INIT_R)
 832         /* miscellaneous platform dependent initialisations */
 833         misc_init_r ();
 834 #endif
 835
 836 #ifdef  CONFIG_HERMES
 837         if (bd->bi_ethspeed != 0xFFFF)
 838                 hermes_start_lxt980 ((int) bd->bi_ethspeed);
 839 #endif
 840
 841 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
 842     defined(CONFIG_CCM)         || \
 843     defined(CONFIG_ELPT860)     || \
 844     defined(CONFIG_EP8260)      || \
 845     defined(CONFIG_IP860)       || \
 846     defined(CONFIG_IVML24)      || \
 847     defined(CONFIG_IVMS8)       || \
 848     defined(CONFIG_LWMON)       || \
 849     defined(CONFIG_MPC8260ADS)  || \
 850     defined(CONFIG_MPC8266ADS)  || \
 851     defined(CONFIG_MPC8560ADS)  || \
 852     defined(CONFIG_PCU_E)       || \
 853     defined(CONFIG_RPXSUPER)    || \
 854     defined(CONFIG_SPD823TS)    )
 855
 856         WATCHDOG_RESET ();
 857         debug ("Reset Ethernet PHY\n");
 858         reset_phy ();
 859 #endif
 860
 861 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
 862         WATCHDOG_RESET ();
 863         puts ("KGDB:  ");
 864         kgdb_init ();
 865 #endif
 866
 867         debug ("U-Boot relocated to %08lx\n", dest_addr);
 868
 869         /*
 870          * Enable Interrupts
 871          */
 872         interrupt_init ();
 873
 874         /* Must happen after interrupts are initialized since
 875          * an irq handler gets installed
 876          */
 877 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
 878         serial_buffered_init();
 879 #endif
 880
 881 #ifdef CONFIG_STATUS_LED
 882         status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
 883 #endif
 884
 885         udelay (20);
 886
 887         set_timer (0);
 888
 889         /* Insert function pointers now that we have relocated the code */
 890
 891         /* Initialize from environment */
 892         if ((s = getenv ("loadaddr")) != NULL) {
 893                 load_addr = simple_strtoul (s, NULL, 16);
 894         }
 895 #if (CONFIG_COMMANDS & CFG_CMD_NET)
 896         if ((s = getenv ("bootfile")) != NULL) {
 897                 copy_filename (BootFile, s, sizeof (BootFile));
 898         }
 899 #endif /* CFG_CMD_NET */
 900
 901         WATCHDOG_RESET ();
 902
 903 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
 904         WATCHDOG_RESET ();
 905         puts ("SCSI:  ");
 906         scsi_init ();
 907 #endif
 908
 909 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
 910         WATCHDOG_RESET ();
 911         puts ("DOC:   ");
 912         doc_init ();
 913 #endif
 914
 915 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 916         WATCHDOG_RESET ();
 917         puts ("NAND:");
 918         nand_init();            /* go init the NAND */
 919 #endif
 920
 921 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
 922         WATCHDOG_RESET ();
 923         puts ("Net:   ");
 924         eth_initialize (bd);
 925 #endif
 926
 927 #ifdef CONFIG_POST
 928         post_run (NULL, POST_RAM | post_bootmode_get(0));
 929 #endif
 930
 931 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
 932         WATCHDOG_RESET ();
 933         puts ("PCMCIA:");
 934         pcmcia_init ();
 935 #endif
 936
 937 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
 938         WATCHDOG_RESET ();
 939 # ifdef CONFIG_IDE_8xx_PCCARD
 940         puts ("PCMCIA:");
 941 # else
 942         puts ("IDE:   ");
 943 #endif
 944         ide_init ();
 945 #endif /* CFG_CMD_IDE */
 946
 947 #ifdef CONFIG_LAST_STAGE_INIT
 948         WATCHDOG_RESET ();
 949         /*
 950          * Some parts can be only initialized if all others (like
 951          * Interrupts) are up and running (i.e. the PC-style ISA
 952          * keyboard).
 953          */
 954         last_stage_init ();
 955 #endif
 956
 957 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
 958         WATCHDOG_RESET ();
 959         bedbug_init ();
 960 #endif
 961
 962 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 963         /*
 964          * Export available size of memory for Linux,
 965          * taking into account the protected RAM at top of memory
 966          */
 967         {
 968                 ulong pram;
 969                 uchar memsz[32];
 970 #ifdef CONFIG_PRAM
 971                 char *s;
 972
 973                 if ((s = getenv ("pram")) != NULL) {
 974                         pram = simple_strtoul (s, NULL, 10);
 975                 } else {
 976                         pram = CONFIG_PRAM;
 977                 }
 978 #else
 979                 pram=0;
 980 #endif
 981 #ifdef CONFIG_LOGBUFFER
 982                 /* Also take the logbuffer into account (pram is in kB) */
 983                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
 984 #endif
 985                 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
 986                 setenv ("mem", memsz);
 987         }
 988 #endif
 989
 990 #ifdef CONFIG_PS2KBD
 991         puts ("PS/2:  ");
 992         kbd_init();
 993 #endif
 994
 995 #ifdef CONFIG_MODEM_SUPPORT
 996  {
 997          extern int do_mdm_init;
 998          do_mdm_init = gd->do_mdm_init;
 999  }
1000 #endif
1001
1002         /* Initialization complete - start the monitor */
1003
1004         /* main_loop() can return to retry autoboot, if so just run it again. */
1005         for (;;) {
1006                 WATCHDOG_RESET ();
1007                 main_loop ();
1008         }
1009
1010         /* NOTREACHED - no way out of command loop except booting */
1011 }
1012
1013 void hang (void)
1014 {
1015         puts ("### ERROR ### Please RESET the board ###\n");
1016 #ifdef CONFIG_SHOW_BOOT_PROGRESS
1017         show_boot_progress(-30);
1018 #endif
1019         for (;;);
1020 }
1021
1022 #ifdef CONFIG_MODEM_SUPPORT
1023 /* called from main loop (common/main.c) */
1024 extern void  dbg(const char *fmt, ...);
1025 int mdm_init (void)
1026 {
1027         char env_str[16];
1028         char *init_str;
1029         int i;
1030         extern char console_buffer[];
1031         static inline void mdm_readline(char *buf, int bufsiz);
1032         extern void enable_putc(void);
1033         extern int hwflow_onoff(int);
1034
1035         enable_putc(); /* enable serial_putc() */
1036
1037 #ifdef CONFIG_HWFLOW
1038         init_str = getenv("mdm_flow_control");
1039         if (init_str && (strcmp(init_str, "rts/cts") == 0))
1040                 hwflow_onoff (1);
1041         else
1042                 hwflow_onoff(-1);
1043 #endif
1044
1045         for (i = 1;;i++) {
1046                 sprintf(env_str, "mdm_init%d", i);
1047                 if ((init_str = getenv(env_str)) != NULL) {
1048                         serial_puts(init_str);
1049                         serial_puts("\n");
1050                         for(;;) {
1051                                 mdm_readline(console_buffer, CFG_CBSIZE);
1052                                 dbg("ini%d: [%s]", i, console_buffer);
1053
1054                                 if ((strcmp(console_buffer, "OK") == 0) ||
1055                                         (strcmp(console_buffer, "ERROR") == 0)) {
1056                                         dbg("ini%d: cmd done", i);
1057                                         break;
1058                                 } else /* in case we are originating call ... */
1059                                         if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1060                                                 dbg("ini%d: connect", i);
1061                                                 return 0;
1062                                         }
1063                         }
1064                 } else
1065                         break; /* no init string - stop modem init */
1066
1067                 udelay(100000);
1068         }
1069
1070         udelay(100000);
1071
1072         /* final stage - wait for connect */
1073         for(;i > 1;) { /* if 'i' > 1 - wait for connection
1074                                   message from modem */
1075                 mdm_readline(console_buffer, CFG_CBSIZE);
1076                 dbg("ini_f: [%s]", console_buffer);
1077                 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1078                         dbg("ini_f: connected");
1079                         return 0;
1080                 }
1081         }
1082
1083         return 0;
1084 }
1085
1086 /* 'inline' - We have to do it fast */
1087 static inline void mdm_readline(char *buf, int bufsiz)
1088 {
1089         char c;
1090         char *p;
1091         int n;
1092
1093         n = 0;
1094         p = buf;
1095         for(;;) {
1096                 c = serial_getc();
1097
1098                 /*              dbg("(%c)", c); */
1099
1100                 switch(c) {
1101                 case '\r':
1102                         break;
1103                 case '\n':
1104                         *p = '\0';
1105                         return;
1106
1107                 default:
1108                         if(n++ > bufsiz) {
1109                                 *p = '\0';
1110                                 return; /* sanity check */
1111                         }
1112                         *p = c;
1113                         p++;
1114                         break;
1115                 }
1116         }
1117 }
1118 #endif
1119
1120 #if 0 /* We could use plain global data, but the resulting code is bigger */
1121 /*
1122  * Pointer to initial global data area
1123  *
1124  * Here we initialize it.
1125  */
1126 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
1127 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
1128 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1129 #endif  /* 0 */
1130
1131 /************************************************************************/