arch/powerpc/lib/board.c

   1 /*
   2  * (C) Copyright 2000-2010
   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 <stdio_dev.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 defined(CONFIG_CMD_IDE)
  39 #include <ide.h>
  40 #endif
  41 #if defined(CONFIG_CMD_SCSI)
  42 #include <scsi.h>
  43 #endif
  44 #if defined(CONFIG_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 CONFIG_GENERIC_MMC
  52 #include <mmc.h>
  53 #endif
  54 #include <serial.h>
  55 #ifdef CONFIG_SYS_ALLOC_DPRAM
  56 #if !defined(CONFIG_CPM2)
  57 #include <commproc.h>
  58 #endif
  59 #endif
  60 #include <version.h>
  61 #if defined(CONFIG_BAB7xx)
  62 #include <w83c553f.h>
  63 #endif
  64 #include <dtt.h>
  65 #if defined(CONFIG_POST)
  66 #include <post.h>
  67 #endif
  68 #if defined(CONFIG_LOGBUFFER)
  69 #include <logbuff.h>
  70 #endif
  71 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
  72 #include <asm/cache.h>
  73 #endif
  74 #ifdef CONFIG_PS2KBD
  75 #include <keyboard.h>
  76 #endif
  77
  78 #ifdef CONFIG_ADDR_MAP
  79 #include <asm/mmu.h>
  80 #endif
  81
  82 #ifdef CONFIG_MP
  83 #include <asm/mp.h>
  84 #endif
  85
  86 #ifdef CONFIG_BITBANGMII
  87 #include <miiphy.h>
  88 #endif
  89
  90 #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
  91 extern int update_flash_size (int flash_size);
  92 #endif
  93
  94 #if defined(CONFIG_SC3)
  95 extern void sc3_read_eeprom(void);
  96 #endif
  97
  98 #if defined(CONFIG_CMD_DOC)
  99 void doc_init (void);
 100 #endif
 101 #if defined(CONFIG_HARD_I2C) || \
 102     defined(CONFIG_SOFT_I2C)
 103 #include <i2c.h>
 104 #endif
 105 #include <spi.h>
 106 #include <nand.h>
 107
 108 static char *failed = "*** failed ***\n";
 109
 110 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
 111 extern flash_info_t flash_info[];
 112 #endif
 113
 114 #if defined(CONFIG_START_IDE)
 115 extern int board_start_ide(void);
 116 #endif
 117 #include <environment.h>
 118
 119 DECLARE_GLOBAL_DATA_PTR;
 120
 121 #if !defined(CONFIG_SYS_MEM_TOP_HIDE)
 122 #define CONFIG_SYS_MEM_TOP_HIDE 0
 123 #endif
 124
 125 extern ulong __init_end;
 126 extern ulong _end;
 127 ulong monitor_flash_len;
 128
 129 #if defined(CONFIG_CMD_BEDBUG)
 130 #include <bedbug/type.h>
 131 #endif
 132
 133 /************************************************************************
 134  * Utilities                                                            *
 135  ************************************************************************
 136  */
 137
 138 /*
 139  * All attempts to come up with a "common" initialization sequence
 140  * that works for all boards and architectures failed: some of the
 141  * requirements are just _too_ different. To get rid of the resulting
 142  * mess of board dependend #ifdef'ed code we now make the whole
 143  * initialization sequence configurable to the user.
 144  *
 145  * The requirements for any new initalization function is simple: it
 146  * receives a pointer to the "global data" structure as it's only
 147  * argument, and returns an integer return code, where 0 means
 148  * "continue" and != 0 means "fatal error, hang the system".
 149  */
 150 typedef int (init_fnc_t) (void);
 151
 152 /************************************************************************
 153  * Init Utilities                                                       *
 154  ************************************************************************
 155  * Some of this code should be moved into the core functions,
 156  * but let's get it working (again) first...
 157  */
 158
 159 static int init_baudrate (void)
 160 {
 161         char tmp[64];   /* long enough for environment variables */
 162         int i = getenv_f("baudrate", tmp, sizeof (tmp));
 163
 164         gd->baudrate = (i > 0)
 165                         ? (int) simple_strtoul (tmp, NULL, 10)
 166                         : CONFIG_BAUDRATE;
 167         return (0);
 168 }
 169
 170 /***********************************************************************/
 171
 172 void __board_add_ram_info(int use_default)
 173 {
 174         /* please define platform specific board_add_ram_info() */
 175 }
 176 void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
 177
 178
 179 static int init_func_ram (void)
 180 {
 181 #ifdef  CONFIG_BOARD_TYPES
 182         int board_type = gd->board_type;
 183 #else
 184         int board_type = 0;     /* use dummy arg */
 185 #endif
 186         puts ("DRAM:  ");
 187
 188         if ((gd->ram_size = initdram (board_type)) > 0) {
 189                 print_size (gd->ram_size, "");
 190                 board_add_ram_info(0);
 191                 putc('\n');
 192                 return (0);
 193         }
 194         puts (failed);
 195         return (1);
 196 }
 197
 198 /***********************************************************************/
 199
 200 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 201 static int init_func_i2c (void)
 202 {
 203         puts ("I2C:   ");
 204         i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 205         puts ("ready\n");
 206         return (0);
 207 }
 208 #endif
 209
 210 #if defined(CONFIG_HARD_SPI)
 211 static int init_func_spi (void)
 212 {
 213         puts ("SPI:   ");
 214         spi_init ();
 215         puts ("ready\n");
 216         return (0);
 217 }
 218 #endif
 219
 220 /***********************************************************************/
 221
 222 #if defined(CONFIG_WATCHDOG)
 223 static int init_func_watchdog_init (void)
 224 {
 225         puts ("       Watchdog enabled\n");
 226         WATCHDOG_RESET ();
 227         return (0);
 228 }
 229 # define INIT_FUNC_WATCHDOG_INIT        init_func_watchdog_init,
 230
 231 static int init_func_watchdog_reset (void)
 232 {
 233         WATCHDOG_RESET ();
 234         return (0);
 235 }
 236 # define INIT_FUNC_WATCHDOG_RESET       init_func_watchdog_reset,
 237 #else
 238 # define INIT_FUNC_WATCHDOG_INIT        /* undef */
 239 # define INIT_FUNC_WATCHDOG_RESET       /* undef */
 240 #endif /* CONFIG_WATCHDOG */
 241
 242 /************************************************************************
 243  * Initialization sequence                                              *
 244  ************************************************************************
 245  */
 246
 247 init_fnc_t *init_sequence[] = {
 248 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 249         probecpu,
 250 #endif
 251 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 252         board_early_init_f,
 253 #endif
 254 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 255         get_clocks,             /* get CPU and bus clocks (etc.) */
 256 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 257     && !defined(CONFIG_TQM885D)
 258         adjust_sdram_tbs_8xx,
 259 #endif
 260         init_timebase,
 261 #endif
 262 #ifdef CONFIG_SYS_ALLOC_DPRAM
 263 #if !defined(CONFIG_CPM2)
 264         dpram_init,
 265 #endif
 266 #endif
 267 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 268         board_postclk_init,
 269 #endif
 270         env_init,
 271 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 272         get_clocks_866,         /* get CPU and bus clocks according to the environment variable */
 273         sdram_adjust_866,       /* adjust sdram refresh rate according to the new clock */
 274         init_timebase,
 275 #endif
 276         init_baudrate,
 277         serial_init,
 278         console_init_f,
 279         display_options,
 280 #if defined(CONFIG_8260)
 281         prt_8260_rsr,
 282         prt_8260_clks,
 283 #endif /* CONFIG_8260 */
 284 #if defined(CONFIG_MPC83xx)
 285         prt_83xx_rsr,
 286 #endif
 287         checkcpu,
 288 #if defined(CONFIG_MPC5xxx)
 289         prt_mpc5xxx_clks,
 290 #endif /* CONFIG_MPC5xxx */
 291 #if defined(CONFIG_MPC8220)
 292         prt_mpc8220_clks,
 293 #endif
 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_HARD_SPI)
 304         init_func_spi,
 305 #endif
 306 #ifdef CONFIG_POST
 307         post_init_f,
 308 #endif
 309         INIT_FUNC_WATCHDOG_RESET
 310         init_func_ram,
 311 #if defined(CONFIG_SYS_DRAM_TEST)
 312         testdram,
 313 #endif /* CONFIG_SYS_DRAM_TEST */
 314         INIT_FUNC_WATCHDOG_RESET
 315
 316         NULL,                   /* Terminate this list */
 317 };
 318
 319 ulong get_effective_memsize(void)
 320 {
 321 #ifndef CONFIG_VERY_BIG_RAM
 322         return gd->ram_size;
 323 #else
 324         /* limit stack to what we can reasonable map */
 325         return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
 326                  CONFIG_MAX_MEM_MAPPED : gd->ram_size);
 327 #endif
 328 }
 329
 330 /************************************************************************
 331  *
 332  * This is the first part of the initialization sequence that is
 333  * implemented in C, but still running from ROM.
 334  *
 335  * The main purpose is to provide a (serial) console interface as
 336  * soon as possible (so we can see any error messages), and to
 337  * initialize the RAM so that we can relocate the monitor code to
 338  * RAM.
 339  *
 340  * Be aware of the restrictions: global data is read-only, BSS is not
 341  * initialized, and stack space is limited to a few kB.
 342  *
 343  ************************************************************************
 344  */
 345
 346 #ifdef CONFIG_LOGBUFFER
 347 unsigned long logbuffer_base(void)
 348 {
 349         return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
 350 }
 351 #endif
 352
 353 void board_init_f (ulong bootflag)
 354 {
 355         bd_t *bd;
 356         ulong len, addr, addr_sp;
 357         ulong *s;
 358         gd_t *id;
 359         init_fnc_t **init_fnc_ptr;
 360 #ifdef CONFIG_PRAM
 361         int i;
 362         ulong reg;
 363         uchar tmp[64];          /* long enough for environment variables */
 364 #endif
 365
 366         /* Pointer is writable since we allocated a register for it */
 367         gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
 368         /* compiler optimization barrier needed for GCC >= 3.4 */
 369         __asm__ __volatile__("": : :"memory");
 370
 371 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
 372     !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
 373     !defined(CONFIG_MPC86xx)
 374         /* Clear initial global data */
 375         memset ((void *) gd, 0, sizeof (gd_t));
 376 #endif
 377
 378         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 379                 if ((*init_fnc_ptr) () != 0) {
 380                         hang ();
 381                 }
 382         }
 383
 384         /*
 385          * Now that we have DRAM mapped and working, we can
 386          * relocate the code and continue running from DRAM.
 387          *
 388          * Reserve memory at end of RAM for (top down in that order):
 389          *  - area that won't get touched by U-Boot and Linux (optional)
 390          *  - kernel log buffer
 391          *  - protected RAM
 392          *  - LCD framebuffer
 393          *  - monitor code
 394          *  - board info struct
 395          */
 396         len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
 397
 398         /*
 399          * Subtract specified amount of memory to hide so that it won't
 400          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 401          * the Linux kernel should now get passed the now "corrected"
 402          * memory size and won't touch it either. This should work
 403          * for arch/ppc and arch/powerpc. Only Linux board ports in
 404          * arch/powerpc with bootwrapper support, that recalculate the
 405          * memory size from the SDRAM controller setup will have to
 406          * get fixed.
 407          */
 408         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 409
 410         addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
 411
 412 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 413         /*
 414          * We need to make sure the location we intend to put secondary core
 415          * boot code is reserved and not used by any part of u-boot
 416          */
 417         if (addr > determine_mp_bootpg()) {
 418                 addr = determine_mp_bootpg();
 419                 debug ("Reserving MP boot page to %08lx\n", addr);
 420         }
 421 #endif
 422
 423 #ifdef CONFIG_LOGBUFFER
 424 #ifndef CONFIG_ALT_LB_ADDR
 425         /* reserve kernel log buffer */
 426         addr -= (LOGBUFF_RESERVE);
 427         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 428 #endif
 429 #endif
 430
 431 #ifdef CONFIG_PRAM
 432         /*
 433          * reserve protected RAM
 434          */
 435         i = getenv_f("pram", (char *)tmp, sizeof (tmp));
 436         reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
 437         addr -= (reg << 10);            /* size is in kB */
 438         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 439 #endif /* CONFIG_PRAM */
 440
 441         /* round down to next 4 kB limit */
 442         addr &= ~(4096 - 1);
 443         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 444
 445 #ifdef CONFIG_LCD
 446         /* reserve memory for LCD display (always full pages) */
 447         addr = lcd_setmem (addr);
 448         gd->fb_base = addr;
 449 #endif /* CONFIG_LCD */
 450
 451 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
 452         /* reserve memory for video display (always full pages) */
 453         addr = video_setmem (addr);
 454         gd->fb_base = addr;
 455 #endif /* CONFIG_VIDEO  */
 456
 457         /*
 458          * reserve memory for U-Boot code, data & bss
 459          * round down to next 4 kB limit
 460          */
 461         addr -= len;
 462         addr &= ~(4096 - 1);
 463 #ifdef CONFIG_E500
 464         /* round down to next 64 kB limit so that IVPR stays aligned */
 465         addr &= ~(65536 - 1);
 466 #endif
 467
 468         debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 469
 470         /*
 471          * reserve memory for malloc() arena
 472          */
 473         addr_sp = addr - TOTAL_MALLOC_LEN;
 474         debug ("Reserving %dk for malloc() at: %08lx\n",
 475                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 476
 477         /*
 478          * (permanently) allocate a Board Info struct
 479          * and a permanent copy of the "global" data
 480          */
 481         addr_sp -= sizeof (bd_t);
 482         bd = (bd_t *) addr_sp;
 483         gd->bd = bd;
 484         debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
 485                         sizeof (bd_t), addr_sp);
 486         addr_sp -= sizeof (gd_t);
 487         id = (gd_t *) addr_sp;
 488         debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
 489                         sizeof (gd_t), addr_sp);
 490
 491         /*
 492          * Finally, we set up a new (bigger) stack.
 493          *
 494          * Leave some safety gap for SP, force alignment on 16 byte boundary
 495          * Clear initial stack frame
 496          */
 497         addr_sp -= 16;
 498         addr_sp &= ~0xF;
 499         s = (ulong *)addr_sp;
 500         *s-- = 0;
 501         *s-- = 0;
 502         addr_sp = (ulong)s;
 503         debug ("Stack Pointer at: %08lx\n", addr_sp);
 504
 505         /*
 506          * Save local variables to board info struct
 507          */
 508
 509         bd->bi_memstart  = CONFIG_SYS_SDRAM_BASE;       /* start of  DRAM memory        */
 510         bd->bi_memsize   = gd->ram_size;        /* size  of  DRAM memory in bytes */
 511
 512 #ifdef CONFIG_SYS_SRAM_BASE
 513         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of  SRAM memory        */
 514         bd->bi_sramsize  = CONFIG_SYS_SRAM_SIZE;        /* size  of  SRAM memory        */
 515 #else
 516         bd->bi_sramstart = 0;
 517         bd->bi_sramsize  = 0;
 518 #endif
 519
 520 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
 521     defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 522         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 523 #endif
 524 #if defined(CONFIG_MPC5xxx)
 525         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 526 #endif
 527 #if defined(CONFIG_MPC83xx)
 528         bd->bi_immrbar = CONFIG_SYS_IMMR;
 529 #endif
 530 #if defined(CONFIG_MPC8220)
 531         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 532         bd->bi_inpfreq   = gd->inp_clk;
 533         bd->bi_pcifreq   = gd->pci_clk;
 534         bd->bi_vcofreq   = gd->vco_clk;
 535         bd->bi_pevfreq   = gd->pev_clk;
 536         bd->bi_flbfreq   = gd->flb_clk;
 537
 538         /* store bootparam to sram (backward compatible), here? */
 539         {
 540                 u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
 541                 *sram++ = gd->ram_size;
 542                 *sram++ = gd->bus_clk;
 543                 *sram++ = gd->inp_clk;
 544                 *sram++ = gd->cpu_clk;
 545                 *sram++ = gd->vco_clk;
 546                 *sram++ = gd->flb_clk;
 547                 *sram++ = 0xb8c3ba11;  /* boot signature */
 548         }
 549 #endif
 550
 551         bd->bi_bootflags = bootflag;    /* boot / reboot flag (for LynxOS)    */
 552
 553         WATCHDOG_RESET ();
 554         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 555         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 556 #if defined(CONFIG_CPM2)
 557         bd->bi_cpmfreq = gd->cpm_clk;
 558         bd->bi_brgfreq = gd->brg_clk;
 559         bd->bi_sccfreq = gd->scc_clk;
 560         bd->bi_vco     = gd->vco_out;
 561 #endif /* CONFIG_CPM2 */
 562 #if defined(CONFIG_MPC512X)
 563         bd->bi_ipsfreq = gd->ips_clk;
 564 #endif /* CONFIG_MPC512X */
 565 #if defined(CONFIG_MPC5xxx)
 566         bd->bi_ipbfreq = gd->ipb_clk;
 567         bd->bi_pcifreq = gd->pci_clk;
 568 #endif /* CONFIG_MPC5xxx */
 569         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 570
 571 #ifdef CONFIG_SYS_EXTBDINFO
 572         strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
 573         strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
 574
 575         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 576         bd->bi_plb_busfreq = gd->bus_clk;
 577 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 578     defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 579     defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 580         bd->bi_pci_busfreq = get_PCI_freq ();
 581         bd->bi_opbfreq = get_OPB_freq ();
 582 #elif defined(CONFIG_XILINX_405)
 583         bd->bi_pci_busfreq = get_PCI_freq ();
 584 #endif
 585 #endif
 586
 587         debug ("New Stack Pointer is: %08lx\n", addr_sp);
 588
 589         WATCHDOG_RESET ();
 590
 591 #ifdef CONFIG_POST
 592         post_bootmode_init();
 593         post_run (NULL, POST_ROM | post_bootmode_get(0));
 594 #endif
 595
 596         WATCHDOG_RESET();
 597
 598         gd->relocaddr = addr; /* Record relocation address, useful for debug */
 599
 600         memcpy (id, (void *)gd, sizeof (gd_t));
 601
 602         relocate_code (addr_sp, id, addr);
 603
 604         /* NOTREACHED - relocate_code() does not return */
 605 }
 606
 607 /************************************************************************
 608  *
 609  * This is the next part if the initialization sequence: we are now
 610  * running from RAM and have a "normal" C environment, i. e. global
 611  * data can be written, BSS has been cleared, the stack size in not
 612  * that critical any more, etc.
 613  *
 614  ************************************************************************
 615  */
 616 void board_init_r (gd_t *id, ulong dest_addr)
 617 {
 618         char *s;
 619         bd_t *bd;
 620         ulong malloc_start;
 621
 622 #ifndef CONFIG_SYS_NO_FLASH
 623         ulong flash_size;
 624 #endif
 625
 626         gd = id;                /* initialize RAM version of global data */
 627         bd = gd->bd;
 628
 629         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 630
 631         /* The Malloc area is immediately below the monitor copy in DRAM */
 632         malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 633
 634 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 635         /*
 636          * The gd->cpu pointer is set to an address in flash before relocation.
 637          * We need to update it to point to the same CPU entry in RAM.
 638          */
 639         gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE;
 640 #endif
 641
 642 #ifdef CONFIG_SERIAL_MULTI
 643         serial_initialize();
 644 #endif
 645
 646         debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 647
 648         WATCHDOG_RESET ();
 649
 650         /*
 651          * Setup trap handlers
 652          */
 653         trap_init (dest_addr);
 654
 655 #ifdef CONFIG_ADDR_MAP
 656         init_addr_map();
 657 #endif
 658
 659 #if defined(CONFIG_BOARD_EARLY_INIT_R)
 660         board_early_init_r ();
 661 #endif
 662
 663         monitor_flash_len = (ulong)&__init_end - dest_addr;
 664
 665         WATCHDOG_RESET ();
 666
 667 #ifdef CONFIG_LOGBUFFER
 668         logbuff_init_ptrs ();
 669 #endif
 670 #ifdef CONFIG_POST
 671         post_output_backlog ();
 672 #endif
 673
 674         WATCHDOG_RESET();
 675
 676 #if defined(CONFIG_SYS_DELAYED_ICACHE)
 677         icache_enable ();       /* it's time to enable the instruction cache */
 678 #endif
 679
 680 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
 681         unlock_ram_in_cache();  /* it's time to unlock D-cache in e500 */
 682 #endif
 683
 684 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
 685         /*
 686          * Do early PCI configuration _before_ the flash gets initialised,
 687          * because PCU ressources are crucial for flash access on some boards.
 688          */
 689         pci_init ();
 690 #endif
 691 #if defined(CONFIG_BAB7xx)
 692         /*
 693          * Initialise the ISA bridge
 694          */
 695         initialise_w83c553f ();
 696 #endif
 697
 698         asm ("sync ; isync");
 699
 700         mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
 701
 702 #if !defined(CONFIG_SYS_NO_FLASH)
 703         puts ("FLASH: ");
 704
 705         if ((flash_size = flash_init ()) > 0) {
 706 # ifdef CONFIG_SYS_FLASH_CHECKSUM
 707                 print_size (flash_size, "");
 708                 /*
 709                  * Compute and print flash CRC if flashchecksum is set to 'y'
 710                  *
 711                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 712                  */
 713                 s = getenv ("flashchecksum");
 714                 if (s && (*s == 'y')) {
 715                         printf ("  CRC: %08X",
 716                                 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
 717                         );
 718                 }
 719                 putc ('\n');
 720 # else  /* !CONFIG_SYS_FLASH_CHECKSUM */
 721                 print_size (flash_size, "\n");
 722 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
 723         } else {
 724                 puts (failed);
 725                 hang ();
 726         }
 727
 728         bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;      /* update start of FLASH memory    */
 729         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 730
 731 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
 732         /* Make a update of the Memctrl. */
 733         update_flash_size (flash_size);
 734 #endif
 735
 736
 737 # if defined(CONFIG_OXC) || defined(CONFIG_RMU)
 738         /* flash mapped at end of memory map */
 739         bd->bi_flashoffset = TEXT_BASE + flash_size;
 740 # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
 741         bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor  */
 742 # else
 743         bd->bi_flashoffset = 0;
 744 # endif
 745 #else   /* CONFIG_SYS_NO_FLASH */
 746
 747         bd->bi_flashsize = 0;
 748         bd->bi_flashstart = 0;
 749         bd->bi_flashoffset = 0;
 750 #endif /* !CONFIG_SYS_NO_FLASH */
 751
 752         WATCHDOG_RESET ();
 753
 754         /* initialize higher level parts of CPU like time base and timers */
 755         cpu_init_r ();
 756
 757         WATCHDOG_RESET ();
 758
 759 #ifdef CONFIG_SPI
 760 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
 761         spi_init_f ();
 762 # endif
 763         spi_init_r ();
 764 #endif
 765
 766 #if defined(CONFIG_CMD_NAND)
 767         WATCHDOG_RESET ();
 768         puts ("NAND:  ");
 769         nand_init();            /* go init the NAND */
 770 #endif
 771
 772 #ifdef CONFIG_GENERIC_MMC
 773 /*
 774  * MMC initialization is called before relocating env.
 775  * Thus It is required that operations like pin multiplexer
 776  * be put in board_init.
 777  */
 778         WATCHDOG_RESET ();
 779         puts ("MMC:  ");
 780         mmc_initialize (bd);
 781 #endif
 782
 783         /* relocate environment function pointers etc. */
 784         env_relocate ();
 785
 786         /*
 787          * Fill in missing fields of bd_info.
 788          * We do this here, where we have "normal" access to the
 789          * environment; we used to do this still running from ROM,
 790          * where had to use getenv_f(), which can be pretty slow when
 791          * the environment is in EEPROM.
 792          */
 793
 794 #if defined(CONFIG_SYS_EXTBDINFO)
 795 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 796 #if defined(CONFIG_I2CFAST)
 797         /*
 798          * set bi_iic_fast for linux taking environment variable
 799          * "i2cfast" into account
 800          */
 801         {
 802                 char *s = getenv ("i2cfast");
 803                 if (s && ((*s == 'y') || (*s == 'Y'))) {
 804                         bd->bi_iic_fast[0] = 1;
 805                         bd->bi_iic_fast[1] = 1;
 806                 } else {
 807                         bd->bi_iic_fast[0] = 0;
 808                         bd->bi_iic_fast[1] = 0;
 809                 }
 810         }
 811 #else
 812         bd->bi_iic_fast[0] = 0;
 813         bd->bi_iic_fast[1] = 0;
 814 #endif  /* CONFIG_I2CFAST */
 815 #endif  /* CONFIG_405GP, CONFIG_405EP */
 816 #endif  /* CONFIG_SYS_EXTBDINFO */
 817
 818 #if defined(CONFIG_SC3)
 819         sc3_read_eeprom();
 820 #endif
 821
 822 #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET)
 823         mac_read_from_eeprom();
 824 #endif
 825
 826 #ifdef  CONFIG_HERMES
 827         if ((gd->board_type >> 16) == 2)
 828                 bd->bi_ethspeed = gd->board_type & 0xFFFF;
 829         else
 830                 bd->bi_ethspeed = 0xFFFF;
 831 #endif
 832
 833 #ifdef CONFIG_CMD_NET
 834         /* kept around for legacy kernels only ... ignore the next section */
 835         eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
 836 #ifdef CONFIG_HAS_ETH1
 837         eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
 838 #endif
 839 #ifdef CONFIG_HAS_ETH2
 840         eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
 841 #endif
 842 #ifdef CONFIG_HAS_ETH3
 843         eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
 844 #endif
 845 #ifdef CONFIG_HAS_ETH4
 846         eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
 847 #endif
 848 #ifdef CONFIG_HAS_ETH5
 849         eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
 850 #endif
 851 #endif /* CONFIG_CMD_NET */
 852
 853         /* IP Address */
 854         bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 855
 856         WATCHDOG_RESET ();
 857
 858 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
 859         /*
 860          * Do pci configuration
 861          */
 862         pci_init ();
 863 #endif
 864
 865 /** leave this here (after malloc(), environment and PCI are working) **/
 866         /* Initialize stdio devices */
 867         stdio_init ();
 868
 869         /* Initialize the jump table for applications */
 870         jumptable_init ();
 871
 872 #if defined(CONFIG_API)
 873         /* Initialize API */
 874         api_init ();
 875 #endif
 876
 877         /* Initialize the console (after the relocation and devices init) */
 878         console_init_r ();
 879
 880 #if defined(CONFIG_MISC_INIT_R)
 881         /* miscellaneous platform dependent initialisations */
 882         misc_init_r ();
 883 #endif
 884
 885 #ifdef  CONFIG_HERMES
 886         if (bd->bi_ethspeed != 0xFFFF)
 887                 hermes_start_lxt980 ((int) bd->bi_ethspeed);
 888 #endif
 889
 890 #if defined(CONFIG_CMD_KGDB)
 891         WATCHDOG_RESET ();
 892         puts ("KGDB:  ");
 893         kgdb_init ();
 894 #endif
 895
 896         debug ("U-Boot relocated to %08lx\n", dest_addr);
 897
 898         /*
 899          * Enable Interrupts
 900          */
 901         interrupt_init ();
 902
 903 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
 904         status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
 905 #endif
 906
 907         udelay (20);
 908
 909         set_timer (0);
 910
 911         /* Initialize from environment */
 912         if ((s = getenv ("loadaddr")) != NULL) {
 913                 load_addr = simple_strtoul (s, NULL, 16);
 914         }
 915 #if defined(CONFIG_CMD_NET)
 916         if ((s = getenv ("bootfile")) != NULL) {
 917                 copy_filename (BootFile, s, sizeof (BootFile));
 918         }
 919 #endif
 920
 921         WATCHDOG_RESET ();
 922
 923 #if defined(CONFIG_DTT)         /* Digital Thermometers and Thermostats */
 924         dtt_init ();
 925 #endif
 926 #if defined(CONFIG_CMD_SCSI)
 927         WATCHDOG_RESET ();
 928         puts ("SCSI:  ");
 929         scsi_init ();
 930 #endif
 931
 932 #if defined(CONFIG_CMD_DOC)
 933         WATCHDOG_RESET ();
 934         puts ("DOC:   ");
 935         doc_init ();
 936 #endif
 937
 938 #ifdef CONFIG_BITBANGMII
 939         bb_miiphy_init();
 940 #endif
 941 #if defined(CONFIG_CMD_NET)
 942 #if defined(CONFIG_NET_MULTI)
 943         WATCHDOG_RESET ();
 944         puts ("Net:   ");
 945 #endif
 946         eth_initialize (bd);
 947 #endif
 948
 949 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
 950         WATCHDOG_RESET ();
 951         debug ("Reset Ethernet PHY\n");
 952         reset_phy ();
 953 #endif
 954
 955 #ifdef CONFIG_POST
 956         post_run (NULL, POST_RAM | post_bootmode_get(0));
 957 #endif
 958
 959 #if defined(CONFIG_CMD_PCMCIA) \
 960     && !defined(CONFIG_CMD_IDE)
 961         WATCHDOG_RESET ();
 962         puts ("PCMCIA:");
 963         pcmcia_init ();
 964 #endif
 965
 966 #if defined(CONFIG_CMD_IDE)
 967         WATCHDOG_RESET ();
 968 # ifdef CONFIG_IDE_8xx_PCCARD
 969         puts ("PCMCIA:");
 970 # else
 971         puts ("IDE:   ");
 972 #endif
 973 #if defined(CONFIG_START_IDE)
 974         if (board_start_ide())
 975                 ide_init ();
 976 #else
 977         ide_init ();
 978 #endif
 979 #endif
 980
 981 #ifdef CONFIG_LAST_STAGE_INIT
 982         WATCHDOG_RESET ();
 983         /*
 984          * Some parts can be only initialized if all others (like
 985          * Interrupts) are up and running (i.e. the PC-style ISA
 986          * keyboard).
 987          */
 988         last_stage_init ();
 989 #endif
 990
 991 #if defined(CONFIG_CMD_BEDBUG)
 992         WATCHDOG_RESET ();
 993         bedbug_init ();
 994 #endif
 995
 996 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 997         /*
 998          * Export available size of memory for Linux,
 999          * taking into account the protected RAM at top of memory
1000          */
1001         {
1002                 ulong pram;
1003                 uchar memsz[32];
1004 #ifdef CONFIG_PRAM
1005                 char *s;
1006
1007                 if ((s = getenv ("pram")) != NULL) {
1008                         pram = simple_strtoul (s, NULL, 10);
1009                 } else {
1010                         pram = CONFIG_PRAM;
1011                 }
1012 #else
1013                 pram=0;
1014 #endif
1015 #ifdef CONFIG_LOGBUFFER
1016 #ifndef CONFIG_ALT_LB_ADDR
1017                 /* Also take the logbuffer into account (pram is in kB) */
1018                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1019 #endif
1020 #endif
1021                 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1022                 setenv ("mem", (char *)memsz);
1023         }
1024 #endif
1025
1026 #ifdef CONFIG_PS2KBD
1027         puts ("PS/2:  ");
1028         kbd_init();
1029 #endif
1030
1031 #ifdef CONFIG_MODEM_SUPPORT
1032  {
1033          extern int do_mdm_init;
1034          do_mdm_init = gd->do_mdm_init;
1035  }
1036 #endif
1037
1038         /* Initialization complete - start the monitor */
1039
1040         /* main_loop() can return to retry autoboot, if so just run it again. */
1041         for (;;) {
1042                 WATCHDOG_RESET ();
1043                 main_loop ();
1044         }
1045
1046         /* NOTREACHED - no way out of command loop except booting */
1047 }
1048
1049 void hang (void)
1050 {
1051         puts ("### ERROR ### Please RESET the board ###\n");
1052         show_boot_progress(-30);
1053         for (;;);
1054 }
1055
1056
1057 #if 0 /* We could use plain global data, but the resulting code is bigger */
1058 /*
1059  * Pointer to initial global data area
1060  *
1061  * Here we initialize it.
1062  */
1063 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
1064 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
1065 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1066 #endif  /* 0 */
1067
1068 /************************************************************************/