lib_ppc/board.c

   1 /*
   2  * (C) Copyright 2000-2002
   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)
  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
  68 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
  69 void doc_init (void);
  70 #endif
  71 #if defined(CONFIG_HARD_I2C) || \
  72     defined(CONFIG_SOFT_I2C)
  73 #include <i2c.h>
  74 #endif
  75 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
  76 void nand_init (void);
  77 #endif
  78
  79 static char *failed = "*** failed ***\n";
  80
  81 #if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
  82 extern flash_info_t flash_info[];
  83 #endif
  84
  85 #include <environment.h>
  86
  87 #if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
  88       (CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
  89     defined(CFG_ENV_IS_IN_NVRAM)
  90 #define TOTAL_MALLOC_LEN        (CFG_MALLOC_LEN + CFG_ENV_SIZE)
  91 #else
  92 #define TOTAL_MALLOC_LEN        CFG_MALLOC_LEN
  93 #endif
  94
  95 extern ulong __init_end;
  96 extern ulong _end;
  97 ulong monitor_flash_len;
  98
  99 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
 100 #include <bedbug/type.h>
 101 #endif
 102
 103 /*
 104  * Begin and End of memory area for malloc(), and current "brk"
 105  */
 106 static  ulong   mem_malloc_start = 0;
 107 static  ulong   mem_malloc_end   = 0;
 108 static  ulong   mem_malloc_brk   = 0;
 109
 110 /************************************************************************
 111  * Utilities                                                            *
 112  ************************************************************************
 113  */
 114
 115 /*
 116  * The Malloc area is immediately below the monitor copy in DRAM
 117  */
 118 static void mem_malloc_init (void)
 119 {
 120         DECLARE_GLOBAL_DATA_PTR;
 121
 122         ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
 123
 124         mem_malloc_end = dest_addr;
 125         mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 126         mem_malloc_brk = mem_malloc_start;
 127
 128         memset ((void *) mem_malloc_start,
 129                 0,
 130                 mem_malloc_end - mem_malloc_start);
 131 }
 132
 133 void *sbrk (ptrdiff_t increment)
 134 {
 135         ulong old = mem_malloc_brk;
 136         ulong new = old + increment;
 137
 138         if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
 139                 return (NULL);
 140         }
 141         mem_malloc_brk = new;
 142         return ((void *) old);
 143 }
 144
 145 char *strmhz (char *buf, long hz)
 146 {
 147         long l, n;
 148         long m;
 149
 150         n = hz / 1000000L;
 151         l = sprintf (buf, "%ld", n);
 152         m = (hz % 1000000L) / 1000L;
 153         if (m != 0)
 154                 sprintf (buf + l, ".%03ld", m);
 155         return (buf);
 156 }
 157
 158 /*
 159  * All attempts to come up with a "common" initialization sequence
 160  * that works for all boards and architectures failed: some of the
 161  * requirements are just _too_ different. To get rid of the resulting
 162  * mess of board dependend #ifdef'ed code we now make the whole
 163  * initialization sequence configurable to the user.
 164  *
 165  * The requirements for any new initalization function is simple: it
 166  * receives a pointer to the "global data" structure as it's only
 167  * argument, and returns an integer return code, where 0 means
 168  * "continue" and != 0 means "fatal error, hang the system".
 169  */
 170 typedef int (init_fnc_t) (void);
 171
 172 /************************************************************************
 173  * Init Utilities                                                       *
 174  ************************************************************************
 175  * Some of this code should be moved into the core functions,
 176  * but let's get it working (again) first...
 177  */
 178
 179 static int init_baudrate (void)
 180 {
 181         DECLARE_GLOBAL_DATA_PTR;
 182
 183         uchar tmp[64];  /* long enough for environment variables */
 184         int i = getenv_r ("baudrate", tmp, sizeof (tmp));
 185
 186         gd->baudrate = (i > 0)
 187                         ? (int) simple_strtoul (tmp, NULL, 10)
 188                         : CONFIG_BAUDRATE;
 189         return (0);
 190 }
 191
 192 /***********************************************************************/
 193
 194 static int init_func_ram (void)
 195 {
 196         DECLARE_GLOBAL_DATA_PTR;
 197
 198 #ifdef  CONFIG_BOARD_TYPES
 199         int board_type = gd->board_type;
 200 #else
 201         int board_type = 0;     /* use dummy arg */
 202 #endif
 203         puts ("DRAM:  ");
 204
 205         if ((gd->ram_size = initdram (board_type)) > 0) {
 206                 print_size (gd->ram_size, "\n");
 207                 return (0);
 208         }
 209         puts (failed);
 210         return (1);
 211 }
 212
 213 /***********************************************************************/
 214
 215 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 216 static int init_func_i2c (void)
 217 {
 218         puts ("I2C:   ");
 219         i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
 220         puts ("ready\n");
 221         return (0);
 222 }
 223 #endif
 224
 225 /***********************************************************************/
 226
 227 #if defined(CONFIG_WATCHDOG)
 228 static int init_func_watchdog_init (void)
 229 {
 230         puts ("       Watchdog enabled\n");
 231         WATCHDOG_RESET ();
 232         return (0);
 233 }
 234 # define INIT_FUNC_WATCHDOG_INIT        init_func_watchdog_init,
 235
 236 static int init_func_watchdog_reset (void)
 237 {
 238         WATCHDOG_RESET ();
 239         return (0);
 240 }
 241 # define INIT_FUNC_WATCHDOG_RESET       init_func_watchdog_reset,
 242 #else
 243 # define INIT_FUNC_WATCHDOG_INIT        /* undef */
 244 # define INIT_FUNC_WATCHDOG_RESET       /* undef */
 245 #endif /* CONFIG_WATCHDOG */
 246
 247 /************************************************************************
 248  * Initialization sequence                                              *
 249  ************************************************************************
 250  */
 251
 252 init_fnc_t *init_sequence[] = {
 253
 254 #if defined(CONFIG_BOARD_PRE_INIT)
 255         board_pre_init,         /* very early board init code (fpga boot, etc.) */
 256 #endif
 257
 258         get_clocks,             /* get CPU and bus clocks (etc.) */
 259         init_timebase,
 260 #ifdef CFG_ALLOC_DPRAM
 261 #if !defined(CONFIG_8260)
 262         dpram_init,
 263 #endif
 264 #endif
 265 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 266         board_postclk_init,
 267 #endif
 268         env_init,
 269         init_baudrate,
 270         serial_init,
 271         console_init_f,
 272         display_options,
 273 #if defined(CONFIG_8260)
 274         prt_8260_rsr,
 275         prt_8260_clks,
 276 #endif /* CONFIG_8260 */
 277         checkcpu,
 278 #if defined(CONFIG_MPC5XXX)
 279         prt_mpc5xxx_clks,
 280 #endif /* CONFIG_MPC5XXX */
 281         checkboard,
 282         INIT_FUNC_WATCHDOG_INIT
 283 #if defined(CONFIG_BMW)         || \
 284     defined(CONFIG_COGENT)      || \
 285     defined(CONFIG_HYMOD)       || \
 286     defined(CONFIG_RSD_PROTO)   || \
 287     defined(CONFIG_W7O)
 288         misc_init_f,
 289 #endif
 290         INIT_FUNC_WATCHDOG_RESET
 291 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 292         init_func_i2c,
 293 #endif
 294 #if defined(CONFIG_DTT)         /* Digital Thermometers and Thermostats */
 295         dtt_init,
 296 #endif
 297 #ifdef CONFIG_POST
 298         post_init_f,
 299 #endif
 300         INIT_FUNC_WATCHDOG_RESET
 301         init_func_ram,
 302 #if defined(CFG_DRAM_TEST)
 303         testdram,
 304 #endif /* CFG_DRAM_TEST */
 305         INIT_FUNC_WATCHDOG_RESET
 306
 307         NULL,                   /* Terminate this list */
 308 };
 309
 310 /************************************************************************
 311  *
 312  * This is the first part of the initialization sequence that is
 313  * implemented in C, but still running from ROM.
 314  *
 315  * The main purpose is to provide a (serial) console interface as
 316  * soon as possible (so we can see any error messages), and to
 317  * initialize the RAM so that we can relocate the monitor code to
 318  * RAM.
 319  *
 320  * Be aware of the restrictions: global data is read-only, BSS is not
 321  * initialized, and stack space is limited to a few kB.
 322  *
 323  ************************************************************************
 324  */
 325
 326 void board_init_f (ulong bootflag)
 327 {
 328         DECLARE_GLOBAL_DATA_PTR;
 329
 330         bd_t *bd;
 331         ulong len, addr, addr_sp;
 332         gd_t *id;
 333         init_fnc_t **init_fnc_ptr;
 334 #ifdef CONFIG_PRAM
 335         int i;
 336         ulong reg;
 337         uchar tmp[64];          /* long enough for environment variables */
 338 #endif
 339
 340         /* Pointer is writable since we allocated a register for it */
 341         gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
 342
 343 #ifndef CONFIG_8260
 344         /* Clear initial global data */
 345         memset ((void *) gd, 0, sizeof (gd_t));
 346 #endif
 347
 348         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 349                 if ((*init_fnc_ptr) () != 0) {
 350                         hang ();
 351                 }
 352         }
 353
 354         /*
 355          * Now that we have DRAM mapped and working, we can
 356          * relocate the code and continue running from DRAM.
 357          *
 358          * Reserve memory at end of RAM for (top down in that order):
 359          *  - kernel log buffer
 360          *  - protected RAM
 361          *  - LCD framebuffer
 362          *  - monitor code
 363          *  - board info struct
 364          */
 365         len = (ulong)&_end - CFG_MONITOR_BASE;
 366
 367 #ifndef CONFIG_VERY_BIG_RAM
 368         addr = CFG_SDRAM_BASE + gd->ram_size;
 369 #else
 370         /* only allow stack below 256M */
 371         addr = CFG_SDRAM_BASE +
 372                (gd->ram_size > 256 << 20) ? 256 << 20 : gd->ram_size;
 373 #endif
 374
 375 #ifdef CONFIG_LOGBUFFER
 376         /* reserve kernel log buffer */
 377         addr -= (LOGBUFF_RESERVE);
 378         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 379 #endif
 380
 381 #ifdef CONFIG_PRAM
 382         /*
 383          * reserve protected RAM
 384          */
 385         i = getenv_r ("pram", tmp, sizeof (tmp));
 386         reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
 387         addr -= (reg << 10);            /* size is in kB */
 388         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 389 #endif /* CONFIG_PRAM */
 390
 391         /* round down to next 4 kB limit */
 392         addr &= ~(4096 - 1);
 393         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 394
 395 #ifdef CONFIG_LCD
 396         /* reserve memory for LCD display (always full pages) */
 397         addr = lcd_setmem (addr);
 398         gd->fb_base = addr;
 399 #endif /* CONFIG_LCD */
 400
 401 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
 402         /* reserve memory for video display (always full pages) */
 403         addr = video_setmem (addr);
 404         gd->fb_base = addr;
 405 #endif /* CONFIG_VIDEO  */
 406
 407         /*
 408          * reserve memory for U-Boot code, data & bss
 409          * round down to next 4 kB limit
 410          */
 411         addr -= len;
 412         addr &= ~(4096 - 1);
 413
 414         debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 415
 416 #ifdef CONFIG_AMIGAONEG3SE
 417         gd->relocaddr = addr;
 418 #endif
 419
 420         /*
 421          * reserve memory for malloc() arena
 422          */
 423         addr_sp = addr - TOTAL_MALLOC_LEN;
 424         debug ("Reserving %dk for malloc() at: %08lx\n",
 425                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 426
 427         /*
 428          * (permanently) allocate a Board Info struct
 429          * and a permanent copy of the "global" data
 430          */
 431         addr_sp -= sizeof (bd_t);
 432         bd = (bd_t *) addr_sp;
 433         gd->bd = bd;
 434         debug ("Reserving %d Bytes for Board Info at: %08lx\n",
 435                         sizeof (bd_t), addr_sp);
 436         addr_sp -= sizeof (gd_t);
 437         id = (gd_t *) addr_sp;
 438         debug ("Reserving %d Bytes for Global Data at: %08lx\n",
 439                         sizeof (gd_t), addr_sp);
 440
 441         /*
 442          * Finally, we set up a new (bigger) stack.
 443          *
 444          * Leave some safety gap for SP, force alignment on 16 byte boundary
 445          * Clear initial stack frame
 446          */
 447         addr_sp -= 16;
 448         addr_sp &= ~0xF;
 449         *((ulong *) addr_sp)-- = 0;
 450         *((ulong *) addr_sp)-- = 0;
 451         debug ("Stack Pointer at: %08lx\n", addr_sp);
 452
 453         /*
 454          * Save local variables to board info struct
 455          */
 456
 457         bd->bi_memstart  = CFG_SDRAM_BASE;      /* start of  DRAM memory      */
 458         bd->bi_memsize   = gd->ram_size;        /* size  of  DRAM memory in bytes */
 459
 460 #ifdef CONFIG_IP860
 461         bd->bi_sramstart = SRAM_BASE;   /* start of  SRAM memory      */
 462         bd->bi_sramsize  = SRAM_SIZE;   /* size  of  SRAM memory      */
 463 #else
 464         bd->bi_sramstart = 0;           /* FIXME */ /* start of  SRAM memory      */
 465         bd->bi_sramsize  = 0;           /* FIXME */ /* size  of  SRAM memory      */
 466 #endif
 467
 468 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx)
 469         bd->bi_immr_base = CFG_IMMR;    /* base  of IMMR register     */
 470 #endif
 471 #if defined(CONFIG_MPC5XXX)
 472         bd->bi_mbar_base = CFG_MBAR;    /* base of internal registers */
 473 #endif
 474
 475         bd->bi_bootflags = bootflag;    /* boot / reboot flag (for LynxOS)    */
 476
 477         WATCHDOG_RESET ();
 478         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 479         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 480 #if defined(CONFIG_8260)
 481         bd->bi_cpmfreq = gd->cpm_clk;
 482         bd->bi_brgfreq = gd->brg_clk;
 483         bd->bi_sccfreq = gd->scc_clk;
 484         bd->bi_vco     = gd->vco_out;
 485 #endif /* CONFIG_8260 */
 486 #if defined(CONFIG_MPC5XXX)
 487         bd->bi_ipbfreq = gd->ipb_clk;
 488         bd->bi_pcifreq = gd->pci_clk;
 489 #endif /* CONFIG_MPC5XXX */
 490         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 491
 492 #ifdef CFG_EXTBDINFO
 493         strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
 494         strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
 495
 496         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 497         bd->bi_plb_busfreq = gd->bus_clk;
 498 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 499         bd->bi_pci_busfreq = get_PCI_freq ();
 500 #endif
 501 #endif
 502
 503         debug ("New Stack Pointer is: %08lx\n", addr_sp);
 504
 505         WATCHDOG_RESET ();
 506
 507 #ifdef CONFIG_POST
 508         post_bootmode_init();
 509         post_run (NULL, POST_ROM | post_bootmode_get(0));
 510 #endif
 511
 512         WATCHDOG_RESET();
 513
 514         memcpy (id, (void *)gd, sizeof (gd_t));
 515
 516         relocate_code (addr_sp, id, addr);
 517
 518         /* NOTREACHED - relocate_code() does not return */
 519 }
 520
 521
 522 /************************************************************************
 523  *
 524  * This is the next part if the initialization sequence: we are now
 525  * running from RAM and have a "normal" C environment, i. e. global
 526  * data can be written, BSS has been cleared, the stack size in not
 527  * that critical any more, etc.
 528  *
 529  ************************************************************************
 530  */
 531
 532 void board_init_r (gd_t *id, ulong dest_addr)
 533 {
 534         DECLARE_GLOBAL_DATA_PTR;
 535         cmd_tbl_t *cmdtp;
 536         char *s, *e;
 537         bd_t *bd;
 538         int i;
 539         extern void malloc_bin_reloc (void);
 540 #ifndef CFG_ENV_IS_NOWHERE
 541         extern char * env_name_spec;
 542 #endif
 543
 544 #ifndef CFG_NO_FLASH
 545         ulong flash_size;
 546 #endif
 547
 548         gd = id;                /* initialize RAM version of global data */
 549         bd = gd->bd;
 550
 551         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 552
 553         debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 554
 555         WATCHDOG_RESET ();
 556
 557         gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
 558
 559         monitor_flash_len = (ulong)&__init_end - dest_addr;
 560
 561         /*
 562          * We have to relocate the command table manually
 563          */
 564         for (cmdtp = &__u_boot_cmd_start; cmdtp !=  &__u_boot_cmd_end; cmdtp++) {
 565                 ulong addr;
 566                 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
 567 #if 0
 568                 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
 569                                 cmdtp->name, (ulong) (cmdtp->cmd), addr);
 570 #endif
 571                 cmdtp->cmd =
 572                         (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
 573
 574                 addr = (ulong)(cmdtp->name) + gd->reloc_off;
 575                 cmdtp->name = (char *)addr;
 576
 577                 if (cmdtp->usage) {
 578                         addr = (ulong)(cmdtp->usage) + gd->reloc_off;
 579                         cmdtp->usage = (char *)addr;
 580                 }
 581 #ifdef  CFG_LONGHELP
 582                 if (cmdtp->help) {
 583                         addr = (ulong)(cmdtp->help) + gd->reloc_off;
 584                         cmdtp->help = (char *)addr;
 585                 }
 586 #endif
 587         }
 588         /* there are some other pointer constants we must deal with */
 589 #ifndef CFG_ENV_IS_NOWHERE
 590         env_name_spec += gd->reloc_off;
 591 #endif
 592
 593         WATCHDOG_RESET ();
 594
 595 #ifdef CONFIG_LOGBUFFER
 596         logbuff_init_ptrs ();
 597 #endif
 598 #ifdef CONFIG_POST
 599         post_output_backlog ();
 600         post_reloc ();
 601 #endif
 602
 603         WATCHDOG_RESET();
 604
 605 #if defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM)
 606         icache_enable ();       /* it's time to enable the instruction cache */
 607 #endif
 608
 609 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
 610         /*
 611          * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
 612          * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
 613          * bridge there.
 614          */
 615         pci_init ();
 616 #endif
 617 #if defined(CONFIG_BAB7xx)
 618         /*
 619          * Initialise the ISA bridge
 620          */
 621         initialise_w83c553f ();
 622 #endif
 623
 624         asm ("sync ; isync");
 625
 626         /*
 627          * Setup trap handlers
 628          */
 629         trap_init (dest_addr);
 630
 631 #if !defined(CFG_NO_FLASH)
 632         puts ("FLASH: ");
 633
 634         if ((flash_size = flash_init ()) > 0) {
 635 # ifdef CFG_FLASH_CHECKSUM
 636                 print_size (flash_size, "");
 637                 /*
 638                  * Compute and print flash CRC if flashchecksum is set to 'y'
 639                  *
 640                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 641                  */
 642                 s = getenv ("flashchecksum");
 643                 if (s && (*s == 'y')) {
 644                         printf ("  CRC: %08lX",
 645                                         crc32 (0,
 646                                                    (const unsigned char *) CFG_FLASH_BASE,
 647                                                    flash_size)
 648                                         );
 649                 }
 650                 putc ('\n');
 651 # else  /* !CFG_FLASH_CHECKSUM */
 652                 print_size (flash_size, "\n");
 653 # endif /* CFG_FLASH_CHECKSUM */
 654         } else {
 655                 puts (failed);
 656                 hang ();
 657         }
 658
 659         bd->bi_flashstart = CFG_FLASH_BASE;     /* update start of FLASH memory    */
 660         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 661 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC)
 662         bd->bi_flashoffset = 0;
 663 # elif CFG_MONITOR_BASE == CFG_FLASH_BASE
 664         bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor  */
 665 # else
 666         bd->bi_flashoffset = 0;
 667 # endif
 668 #else   /* CFG_NO_FLASH */
 669
 670         bd->bi_flashsize = 0;
 671         bd->bi_flashstart = 0;
 672         bd->bi_flashoffset = 0;
 673 #endif /* !CFG_NO_FLASH */
 674
 675         WATCHDOG_RESET ();
 676
 677         /* initialize higher level parts of CPU like time base and timers */
 678         cpu_init_r ();
 679
 680         WATCHDOG_RESET ();
 681
 682         /* initialize malloc() area */
 683         mem_malloc_init ();
 684         malloc_bin_reloc ();
 685
 686 #ifdef CONFIG_SPI
 687 # if !defined(CFG_ENV_IS_IN_EEPROM)
 688         spi_init_f ();
 689 # endif
 690         spi_init_r ();
 691 #endif
 692
 693         /* relocate environment function pointers etc. */
 694         env_relocate ();
 695
 696         /*
 697          * Fill in missing fields of bd_info.
 698          * We do this here, where we have "normal" access to the
 699          * environment; we used to do this still running from ROM,
 700          * where had to use getenv_r(), which can be pretty slow when
 701          * the environment is in EEPROM.
 702          */
 703         s = getenv ("ethaddr");
 704 #if defined (CONFIG_MBX) || defined (CONFIG_RPXCLASSIC) || defined(CONFIG_IAD210)
 705         if (s == NULL)
 706                 board_get_enetaddr (bd->bi_enetaddr);
 707         else
 708 #endif
 709                 for (i = 0; i < 6; ++i) {
 710                         bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 711                         if (s)
 712                                 s = (*e) ? e + 1 : e;
 713                 }
 714 #ifdef  CONFIG_HERMES
 715         if ((gd->board_type >> 16) == 2)
 716                 bd->bi_ethspeed = gd->board_type & 0xFFFF;
 717         else
 718                 bd->bi_ethspeed = 0xFFFF;
 719 #endif
 720
 721 #ifdef CONFIG_NX823
 722         load_sernum_ethaddr ();
 723 #endif
 724
 725 #if defined(CFG_GT_6426x) || defined(CONFIG_PN62) || defined(CONFIG_PPCHAMELEONEVB)
 726         /* handle the 2nd ethernet address */
 727
 728         s = getenv ("eth1addr");
 729
 730         for (i = 0; i < 6; ++i) {
 731                 bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 732                 if (s)
 733                         s = (*e) ? e + 1 : e;
 734         }
 735 #endif
 736 #if defined(CFG_GT_6426x)
 737         /* handle the 3rd ethernet address */
 738
 739         s = getenv ("eth2addr");
 740
 741         for (i = 0; i < 6; ++i) {
 742                 bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
 743                 if (s)
 744                         s = (*e) ? e + 1 : e;
 745         }
 746 #endif
 747
 748
 749 #if defined(CONFIG_TQM8xxL) || defined(CONFIG_TQM8260) || \
 750     defined(CONFIG_CCM)
 751         load_sernum_ethaddr ();
 752 #endif
 753         /* IP Address */
 754         bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 755
 756         WATCHDOG_RESET ();
 757
 758 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx)
 759         /*
 760          * Do pci configuration
 761          */
 762         pci_init ();
 763 #endif
 764
 765 /** leave this here (after malloc(), environment and PCI are working) **/
 766         /* Initialize devices */
 767         devices_init ();
 768
 769         /* Initialize the jump table for applications */
 770         jumptable_init ();
 771
 772         /* Initialize the console (after the relocation and devices init) */
 773         console_init_r ();
 774
 775 #if defined(CONFIG_CCM)         || \
 776     defined(CONFIG_COGENT)      || \
 777     defined(CONFIG_CPCI405)     || \
 778     defined(CONFIG_EVB64260)    || \
 779     defined(CONFIG_KUP4K)       || \
 780     defined(CONFIG_LWMON)       || \
 781     defined(CONFIG_PCU_E)       || \
 782     defined(CONFIG_W7O)         || \
 783     defined(CONFIG_MISC_INIT_R)
 784         /* miscellaneous platform dependent initialisations */
 785         misc_init_r ();
 786 #endif
 787
 788 #ifdef  CONFIG_HERMES
 789         if (bd->bi_ethspeed != 0xFFFF)
 790                 hermes_start_lxt980 ((int) bd->bi_ethspeed);
 791 #endif
 792
 793 #if (CONFIG_COMMANDS & CFG_CMD_NET) && ( \
 794     defined(CONFIG_CCM)         || \
 795     defined(CONFIG_ELPT860)     || \
 796     defined(CONFIG_EP8260)      || \
 797     defined(CONFIG_IP860)       || \
 798     defined(CONFIG_IVML24)      || \
 799     defined(CONFIG_IVMS8)       || \
 800     defined(CONFIG_LWMON)       || \
 801     defined(CONFIG_MPC8260ADS)  || \
 802     defined(CONFIG_MPC8266ADS)  || \
 803     defined(CONFIG_PCU_E)       || \
 804     defined(CONFIG_RPXSUPER)    || \
 805     defined(CONFIG_SPD823TS)    )
 806
 807         WATCHDOG_RESET ();
 808         debug ("Reset Ethernet PHY\n");
 809         reset_phy ();
 810 #endif
 811
 812 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
 813         WATCHDOG_RESET ();
 814         puts ("KGDB:  ");
 815         kgdb_init ();
 816 #endif
 817
 818         debug ("U-Boot relocated to %08lx\n", dest_addr);
 819
 820         /*
 821          * Enable Interrupts
 822          */
 823         interrupt_init ();
 824
 825         /* Must happen after interrupts are initialized since
 826          * an irq handler gets installed
 827          */
 828 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
 829         serial_buffered_init();
 830 #endif
 831
 832 #ifdef CONFIG_STATUS_LED
 833         status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
 834 #endif
 835
 836         udelay (20);
 837
 838         set_timer (0);
 839
 840         /* Insert function pointers now that we have relocated the code */
 841
 842         /* Initialize from environment */
 843         if ((s = getenv ("loadaddr")) != NULL) {
 844                 load_addr = simple_strtoul (s, NULL, 16);
 845         }
 846 #if (CONFIG_COMMANDS & CFG_CMD_NET)
 847         if ((s = getenv ("bootfile")) != NULL) {
 848                 copy_filename (BootFile, s, sizeof (BootFile));
 849         }
 850 #endif /* CFG_CMD_NET */
 851
 852         WATCHDOG_RESET ();
 853
 854 #if (CONFIG_COMMANDS & CFG_CMD_SCSI)
 855         WATCHDOG_RESET ();
 856         puts ("SCSI:  ");
 857         scsi_init ();
 858 #endif
 859
 860 #if (CONFIG_COMMANDS & CFG_CMD_DOC)
 861         WATCHDOG_RESET ();
 862         puts ("DOC:   ");
 863         doc_init ();
 864 #endif
 865
 866 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 867         WATCHDOG_RESET ();
 868         puts ("NAND:");
 869         nand_init();            /* go init the NAND */
 870 #endif
 871
 872 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
 873         WATCHDOG_RESET ();
 874         puts ("Net:   ");
 875         eth_initialize (bd);
 876 #endif
 877
 878 #ifdef CONFIG_POST
 879         post_run (NULL, POST_RAM | post_bootmode_get(0));
 880 #endif
 881
 882 #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
 883         WATCHDOG_RESET ();
 884         puts ("PCMCIA:");
 885         pcmcia_init ();
 886 #endif
 887
 888 #if (CONFIG_COMMANDS & CFG_CMD_IDE)
 889         WATCHDOG_RESET ();
 890 # ifdef CONFIG_IDE_8xx_PCCARD
 891         puts ("PCMCIA:");
 892 # else
 893         puts ("IDE:   ");
 894 #endif
 895         ide_init ();
 896 #endif /* CFG_CMD_IDE */
 897
 898 #ifdef CONFIG_LAST_STAGE_INIT
 899         WATCHDOG_RESET ();
 900         /*
 901          * Some parts can be only initialized if all others (like
 902          * Interrupts) are up and running (i.e. the PC-style ISA
 903          * keyboard).
 904          */
 905         last_stage_init ();
 906 #endif
 907
 908 #if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
 909         WATCHDOG_RESET ();
 910         bedbug_init ();
 911 #endif
 912
 913 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 914         /*
 915          * Export available size of memory for Linux,
 916          * taking into account the protected RAM at top of memory
 917          */
 918         {
 919                 ulong pram;
 920                 uchar memsz[32];
 921 #ifdef CONFIG_PRAM
 922                 char *s;
 923
 924                 if ((s = getenv ("pram")) != NULL) {
 925                         pram = simple_strtoul (s, NULL, 10);
 926                 } else {
 927                         pram = CONFIG_PRAM;
 928                 }
 929 #else
 930                 pram=0;
 931 #endif
 932 #ifdef CONFIG_LOGBUFFER
 933                 /* Also take the logbuffer into account (pram is in kB) */
 934                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
 935 #endif
 936                 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
 937                 setenv ("mem", memsz);
 938         }
 939 #endif
 940
 941 #ifdef CONFIG_MODEM_SUPPORT
 942  {
 943          extern int do_mdm_init;
 944          do_mdm_init = gd->do_mdm_init;
 945  }
 946 #endif
 947
 948         /* Initialization complete - start the monitor */
 949
 950         /* main_loop() can return to retry autoboot, if so just run it again. */
 951         for (;;) {
 952                 WATCHDOG_RESET ();
 953                 main_loop ();
 954         }
 955
 956         /* NOTREACHED - no way out of command loop except booting */
 957 }
 958
 959 void hang (void)
 960 {
 961         puts ("### ERROR ### Please RESET the board ###\n");
 962         for (;;);
 963 }
 964
 965 #ifdef CONFIG_MODEM_SUPPORT
 966 /* called from main loop (common/main.c) */
 967 extern void  dbg(const char *fmt, ...);
 968 int mdm_init (void)
 969 {
 970         char env_str[16];
 971         char *init_str;
 972         int i;
 973         extern char console_buffer[];
 974         static inline void mdm_readline(char *buf, int bufsiz);
 975         extern void enable_putc(void);
 976         extern int hwflow_onoff(int);
 977
 978         enable_putc(); /* enable serial_putc() */
 979
 980 #ifdef CONFIG_HWFLOW
 981         init_str = getenv("mdm_flow_control");
 982         if (init_str && (strcmp(init_str, "rts/cts") == 0))
 983                 hwflow_onoff (1);
 984         else
 985                 hwflow_onoff(-1);
 986 #endif
 987
 988         for (i = 1;;i++) {
 989                 sprintf(env_str, "mdm_init%d", i);
 990                 if ((init_str = getenv(env_str)) != NULL) {
 991                         serial_puts(init_str);
 992                         serial_puts("\n");
 993                         for(;;) {
 994                                 mdm_readline(console_buffer, CFG_CBSIZE);
 995                                 dbg("ini%d: [%s]", i, console_buffer);
 996
 997                                 if ((strcmp(console_buffer, "OK") == 0) ||
 998                                         (strcmp(console_buffer, "ERROR") == 0)) {
 999                                         dbg("ini%d: cmd done", i);
1000                                         break;
1001                                 } else /* in case we are originating call ... */
1002                                         if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1003                                                 dbg("ini%d: connect", i);
1004                                                 return 0;
1005                                         }
1006                         }
1007                 } else
1008                         break; /* no init string - stop modem init */
1009
1010                 udelay(100000);
1011         }
1012
1013         udelay(100000);
1014
1015         /* final stage - wait for connect */
1016         for(;i > 1;) { /* if 'i' > 1 - wait for connection
1017                                   message from modem */
1018                 mdm_readline(console_buffer, CFG_CBSIZE);
1019                 dbg("ini_f: [%s]", console_buffer);
1020                 if (strncmp(console_buffer, "CONNECT", 7) == 0) {
1021                         dbg("ini_f: connected");
1022                         return 0;
1023                 }
1024         }
1025
1026         return 0;
1027 }
1028
1029 /* 'inline' - We have to do it fast */
1030 static inline void mdm_readline(char *buf, int bufsiz)
1031 {
1032         char c;
1033         char *p;
1034         int n;
1035
1036         n = 0;
1037         p = buf;
1038         for(;;) {
1039                 c = serial_getc();
1040
1041                 /*              dbg("(%c)", c); */
1042
1043                 switch(c) {
1044                 case '\r':
1045                         break;
1046                 case '\n':
1047                         *p = '\0';
1048                         return;
1049
1050                 default:
1051                         if(n++ > bufsiz) {
1052                                 *p = '\0';
1053                                 return; /* sanity check */
1054                         }
1055                         *p = c;
1056                         p++;
1057                         break;
1058                 }
1059         }
1060 }
1061 #endif
1062
1063 #if 0 /* We could use plain global data, but the resulting code is bigger */
1064 /*
1065  * Pointer to initial global data area
1066  *
1067  * Here we initialize it.
1068  */
1069 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
1070 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
1071 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
1072 #endif  /* 0 */
1073
1074 /************************************************************************/