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_PCU_E) || 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_ENV_IS_EMBEDDED)
 122 #define TOTAL_MALLOC_LEN        CONFIG_SYS_MALLOC_LEN
 123 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
 124         (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
 125       defined(CONFIG_ENV_IS_IN_NVRAM)
 126 #define TOTAL_MALLOC_LEN        (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
 127 #else
 128 #define TOTAL_MALLOC_LEN        CONFIG_SYS_MALLOC_LEN
 129 #endif
 130
 131 #if !defined(CONFIG_SYS_MEM_TOP_HIDE)
 132 #define CONFIG_SYS_MEM_TOP_HIDE 0
 133 #endif
 134
 135 extern ulong __init_end;
 136 extern ulong _end;
 137 ulong monitor_flash_len;
 138
 139 #if defined(CONFIG_CMD_BEDBUG)
 140 #include <bedbug/type.h>
 141 #endif
 142
 143 /************************************************************************
 144  * Utilities                                                            *
 145  ************************************************************************
 146  */
 147
 148 /*
 149  * All attempts to come up with a "common" initialization sequence
 150  * that works for all boards and architectures failed: some of the
 151  * requirements are just _too_ different. To get rid of the resulting
 152  * mess of board dependend #ifdef'ed code we now make the whole
 153  * initialization sequence configurable to the user.
 154  *
 155  * The requirements for any new initalization function is simple: it
 156  * receives a pointer to the "global data" structure as it's only
 157  * argument, and returns an integer return code, where 0 means
 158  * "continue" and != 0 means "fatal error, hang the system".
 159  */
 160 typedef int (init_fnc_t) (void);
 161
 162 /************************************************************************
 163  * Init Utilities                                                       *
 164  ************************************************************************
 165  * Some of this code should be moved into the core functions,
 166  * but let's get it working (again) first...
 167  */
 168
 169 static int init_baudrate (void)
 170 {
 171         char tmp[64];   /* long enough for environment variables */
 172         int i = getenv_r ("baudrate", tmp, sizeof (tmp));
 173
 174         gd->baudrate = (i > 0)
 175                         ? (int) simple_strtoul (tmp, NULL, 10)
 176                         : CONFIG_BAUDRATE;
 177         return (0);
 178 }
 179
 180 /***********************************************************************/
 181
 182 void __board_add_ram_info(int use_default)
 183 {
 184         /* please define platform specific board_add_ram_info() */
 185 }
 186 void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
 187
 188
 189 static int init_func_ram (void)
 190 {
 191 #ifdef  CONFIG_BOARD_TYPES
 192         int board_type = gd->board_type;
 193 #else
 194         int board_type = 0;     /* use dummy arg */
 195 #endif
 196         puts ("DRAM:  ");
 197
 198         if ((gd->ram_size = initdram (board_type)) > 0) {
 199                 print_size (gd->ram_size, "");
 200                 board_add_ram_info(0);
 201                 putc('\n');
 202                 return (0);
 203         }
 204         puts (failed);
 205         return (1);
 206 }
 207
 208 /***********************************************************************/
 209
 210 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 211 static int init_func_i2c (void)
 212 {
 213         puts ("I2C:   ");
 214         i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 215         puts ("ready\n");
 216         return (0);
 217 }
 218 #endif
 219
 220 #if defined(CONFIG_HARD_SPI)
 221 static int init_func_spi (void)
 222 {
 223         puts ("SPI:   ");
 224         spi_init ();
 225         puts ("ready\n");
 226         return (0);
 227 }
 228 #endif
 229
 230 /***********************************************************************/
 231
 232 #if defined(CONFIG_WATCHDOG)
 233 static int init_func_watchdog_init (void)
 234 {
 235         puts ("       Watchdog enabled\n");
 236         WATCHDOG_RESET ();
 237         return (0);
 238 }
 239 # define INIT_FUNC_WATCHDOG_INIT        init_func_watchdog_init,
 240
 241 static int init_func_watchdog_reset (void)
 242 {
 243         WATCHDOG_RESET ();
 244         return (0);
 245 }
 246 # define INIT_FUNC_WATCHDOG_RESET       init_func_watchdog_reset,
 247 #else
 248 # define INIT_FUNC_WATCHDOG_INIT        /* undef */
 249 # define INIT_FUNC_WATCHDOG_RESET       /* undef */
 250 #endif /* CONFIG_WATCHDOG */
 251
 252 /************************************************************************
 253  * Initialization sequence                                              *
 254  ************************************************************************
 255  */
 256
 257 init_fnc_t *init_sequence[] = {
 258 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 259         probecpu,
 260 #endif
 261 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 262         board_early_init_f,
 263 #endif
 264 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 265         get_clocks,             /* get CPU and bus clocks (etc.) */
 266 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 267     && !defined(CONFIG_TQM885D)
 268         adjust_sdram_tbs_8xx,
 269 #endif
 270         init_timebase,
 271 #endif
 272 #ifdef CONFIG_SYS_ALLOC_DPRAM
 273 #if !defined(CONFIG_CPM2)
 274         dpram_init,
 275 #endif
 276 #endif
 277 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 278         board_postclk_init,
 279 #endif
 280         env_init,
 281 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 282         get_clocks_866,         /* get CPU and bus clocks according to the environment variable */
 283         sdram_adjust_866,       /* adjust sdram refresh rate according to the new clock */
 284         init_timebase,
 285 #endif
 286         init_baudrate,
 287         serial_init,
 288         console_init_f,
 289         display_options,
 290 #if defined(CONFIG_8260)
 291         prt_8260_rsr,
 292         prt_8260_clks,
 293 #endif /* CONFIG_8260 */
 294 #if defined(CONFIG_MPC83xx)
 295         prt_83xx_rsr,
 296 #endif
 297         checkcpu,
 298 #if defined(CONFIG_MPC5xxx)
 299         prt_mpc5xxx_clks,
 300 #endif /* CONFIG_MPC5xxx */
 301 #if defined(CONFIG_MPC8220)
 302         prt_mpc8220_clks,
 303 #endif
 304         checkboard,
 305         INIT_FUNC_WATCHDOG_INIT
 306 #if defined(CONFIG_MISC_INIT_F)
 307         misc_init_f,
 308 #endif
 309         INIT_FUNC_WATCHDOG_RESET
 310 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 311         init_func_i2c,
 312 #endif
 313 #if defined(CONFIG_HARD_SPI)
 314         init_func_spi,
 315 #endif
 316 #ifdef CONFIG_POST
 317         post_init_f,
 318 #endif
 319         INIT_FUNC_WATCHDOG_RESET
 320         init_func_ram,
 321 #if defined(CONFIG_SYS_DRAM_TEST)
 322         testdram,
 323 #endif /* CONFIG_SYS_DRAM_TEST */
 324         INIT_FUNC_WATCHDOG_RESET
 325
 326         NULL,                   /* Terminate this list */
 327 };
 328
 329 ulong get_effective_memsize(void)
 330 {
 331 #ifndef CONFIG_VERY_BIG_RAM
 332         return gd->ram_size;
 333 #else
 334         /* limit stack to what we can reasonable map */
 335         return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
 336                  CONFIG_MAX_MEM_MAPPED : gd->ram_size);
 337 #endif
 338 }
 339
 340 /************************************************************************
 341  *
 342  * This is the first part of the initialization sequence that is
 343  * implemented in C, but still running from ROM.
 344  *
 345  * The main purpose is to provide a (serial) console interface as
 346  * soon as possible (so we can see any error messages), and to
 347  * initialize the RAM so that we can relocate the monitor code to
 348  * RAM.
 349  *
 350  * Be aware of the restrictions: global data is read-only, BSS is not
 351  * initialized, and stack space is limited to a few kB.
 352  *
 353  ************************************************************************
 354  */
 355
 356 #ifdef CONFIG_LOGBUFFER
 357 unsigned long logbuffer_base(void)
 358 {
 359         return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
 360 }
 361 #endif
 362
 363 void board_init_f (ulong bootflag)
 364 {
 365         bd_t *bd;
 366         ulong len, addr, addr_sp;
 367         ulong *s;
 368         gd_t *id;
 369         init_fnc_t **init_fnc_ptr;
 370 #ifdef CONFIG_PRAM
 371         int i;
 372         ulong reg;
 373         uchar tmp[64];          /* long enough for environment variables */
 374 #endif
 375
 376         /* Pointer is writable since we allocated a register for it */
 377         gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
 378         /* compiler optimization barrier needed for GCC >= 3.4 */
 379         __asm__ __volatile__("": : :"memory");
 380
 381 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
 382     !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
 383     !defined(CONFIG_MPC86xx)
 384         /* Clear initial global data */
 385         memset ((void *) gd, 0, sizeof (gd_t));
 386 #endif
 387
 388         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 389                 if ((*init_fnc_ptr) () != 0) {
 390                         hang ();
 391                 }
 392         }
 393
 394         /*
 395          * Now that we have DRAM mapped and working, we can
 396          * relocate the code and continue running from DRAM.
 397          *
 398          * Reserve memory at end of RAM for (top down in that order):
 399          *  - area that won't get touched by U-Boot and Linux (optional)
 400          *  - kernel log buffer
 401          *  - protected RAM
 402          *  - LCD framebuffer
 403          *  - monitor code
 404          *  - board info struct
 405          */
 406         len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
 407
 408         /*
 409          * Subtract specified amount of memory to hide so that it won't
 410          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 411          * the Linux kernel should now get passed the now "corrected"
 412          * memory size and won't touch it either. This should work
 413          * for arch/ppc and arch/powerpc. Only Linux board ports in
 414          * arch/powerpc with bootwrapper support, that recalculate the
 415          * memory size from the SDRAM controller setup will have to
 416          * get fixed.
 417          */
 418         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 419
 420         addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
 421
 422 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 423         /*
 424          * We need to make sure the location we intend to put secondary core
 425          * boot code is reserved and not used by any part of u-boot
 426          */
 427         if (addr > determine_mp_bootpg()) {
 428                 addr = determine_mp_bootpg();
 429                 debug ("Reserving MP boot page to %08lx\n", addr);
 430         }
 431 #endif
 432
 433 #ifdef CONFIG_LOGBUFFER
 434 #ifndef CONFIG_ALT_LB_ADDR
 435         /* reserve kernel log buffer */
 436         addr -= (LOGBUFF_RESERVE);
 437         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 438 #endif
 439 #endif
 440
 441 #ifdef CONFIG_PRAM
 442         /*
 443          * reserve protected RAM
 444          */
 445         i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
 446         reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
 447         addr -= (reg << 10);            /* size is in kB */
 448         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 449 #endif /* CONFIG_PRAM */
 450
 451         /* round down to next 4 kB limit */
 452         addr &= ~(4096 - 1);
 453         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 454
 455 #ifdef CONFIG_LCD
 456         /* reserve memory for LCD display (always full pages) */
 457         addr = lcd_setmem (addr);
 458         gd->fb_base = addr;
 459 #endif /* CONFIG_LCD */
 460
 461 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
 462         /* reserve memory for video display (always full pages) */
 463         addr = video_setmem (addr);
 464         gd->fb_base = addr;
 465 #endif /* CONFIG_VIDEO  */
 466
 467         /*
 468          * reserve memory for U-Boot code, data & bss
 469          * round down to next 4 kB limit
 470          */
 471         addr -= len;
 472         addr &= ~(4096 - 1);
 473 #ifdef CONFIG_E500
 474         /* round down to next 64 kB limit so that IVPR stays aligned */
 475         addr &= ~(65536 - 1);
 476 #endif
 477
 478         debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 479
 480         /*
 481          * reserve memory for malloc() arena
 482          */
 483         addr_sp = addr - TOTAL_MALLOC_LEN;
 484         debug ("Reserving %dk for malloc() at: %08lx\n",
 485                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 486
 487         /*
 488          * (permanently) allocate a Board Info struct
 489          * and a permanent copy of the "global" data
 490          */
 491         addr_sp -= sizeof (bd_t);
 492         bd = (bd_t *) addr_sp;
 493         gd->bd = bd;
 494         debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
 495                         sizeof (bd_t), addr_sp);
 496         addr_sp -= sizeof (gd_t);
 497         id = (gd_t *) addr_sp;
 498         debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
 499                         sizeof (gd_t), addr_sp);
 500
 501         /*
 502          * Finally, we set up a new (bigger) stack.
 503          *
 504          * Leave some safety gap for SP, force alignment on 16 byte boundary
 505          * Clear initial stack frame
 506          */
 507         addr_sp -= 16;
 508         addr_sp &= ~0xF;
 509         s = (ulong *)addr_sp;
 510         *s-- = 0;
 511         *s-- = 0;
 512         addr_sp = (ulong)s;
 513         debug ("Stack Pointer at: %08lx\n", addr_sp);
 514
 515         /*
 516          * Save local variables to board info struct
 517          */
 518
 519         bd->bi_memstart  = CONFIG_SYS_SDRAM_BASE;       /* start of  DRAM memory        */
 520         bd->bi_memsize   = gd->ram_size;        /* size  of  DRAM memory in bytes */
 521
 522 #ifdef CONFIG_IP860
 523         bd->bi_sramstart = SRAM_BASE;   /* start of  SRAM memory        */
 524         bd->bi_sramsize  = SRAM_SIZE;   /* size  of  SRAM memory        */
 525 #elif defined CONFIG_MPC8220
 526         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of  SRAM memory        */
 527         bd->bi_sramsize  = CONFIG_SYS_SRAM_SIZE;        /* size  of  SRAM memory        */
 528 #else
 529         bd->bi_sramstart = 0;           /* FIXME */ /* start of  SRAM memory    */
 530         bd->bi_sramsize  = 0;           /* FIXME */ /* size  of  SRAM memory    */
 531 #endif
 532
 533 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
 534     defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 535         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 536 #endif
 537 #if defined(CONFIG_MPC5xxx)
 538         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 539 #endif
 540 #if defined(CONFIG_MPC83xx)
 541         bd->bi_immrbar = CONFIG_SYS_IMMR;
 542 #endif
 543 #if defined(CONFIG_MPC8220)
 544         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 545         bd->bi_inpfreq   = gd->inp_clk;
 546         bd->bi_pcifreq   = gd->pci_clk;
 547         bd->bi_vcofreq   = gd->vco_clk;
 548         bd->bi_pevfreq   = gd->pev_clk;
 549         bd->bi_flbfreq   = gd->flb_clk;
 550
 551         /* store bootparam to sram (backward compatible), here? */
 552         {
 553                 u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
 554                 *sram++ = gd->ram_size;
 555                 *sram++ = gd->bus_clk;
 556                 *sram++ = gd->inp_clk;
 557                 *sram++ = gd->cpu_clk;
 558                 *sram++ = gd->vco_clk;
 559                 *sram++ = gd->flb_clk;
 560                 *sram++ = 0xb8c3ba11;  /* boot signature */
 561         }
 562 #endif
 563
 564         bd->bi_bootflags = bootflag;    /* boot / reboot flag (for LynxOS)    */
 565
 566         WATCHDOG_RESET ();
 567         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 568         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 569 #if defined(CONFIG_CPM2)
 570         bd->bi_cpmfreq = gd->cpm_clk;
 571         bd->bi_brgfreq = gd->brg_clk;
 572         bd->bi_sccfreq = gd->scc_clk;
 573         bd->bi_vco     = gd->vco_out;
 574 #endif /* CONFIG_CPM2 */
 575 #if defined(CONFIG_MPC512X)
 576         bd->bi_ipsfreq = gd->ips_clk;
 577 #endif /* CONFIG_MPC512X */
 578 #if defined(CONFIG_MPC5xxx)
 579         bd->bi_ipbfreq = gd->ipb_clk;
 580         bd->bi_pcifreq = gd->pci_clk;
 581 #endif /* CONFIG_MPC5xxx */
 582         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 583
 584 #ifdef CONFIG_SYS_EXTBDINFO
 585         strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
 586         strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
 587
 588         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 589         bd->bi_plb_busfreq = gd->bus_clk;
 590 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 591     defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 592     defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 593         bd->bi_pci_busfreq = get_PCI_freq ();
 594         bd->bi_opbfreq = get_OPB_freq ();
 595 #elif defined(CONFIG_XILINX_405)
 596         bd->bi_pci_busfreq = get_PCI_freq ();
 597 #endif
 598 #endif
 599
 600         debug ("New Stack Pointer is: %08lx\n", addr_sp);
 601
 602         WATCHDOG_RESET ();
 603
 604 #ifdef CONFIG_POST
 605         post_bootmode_init();
 606         post_run (NULL, POST_ROM | post_bootmode_get(0));
 607 #endif
 608
 609         WATCHDOG_RESET();
 610
 611         gd->relocaddr = addr; /* Record relocation address, useful for debug */
 612
 613         memcpy (id, (void *)gd, sizeof (gd_t));
 614
 615         relocate_code (addr_sp, id, addr);
 616
 617         /* NOTREACHED - relocate_code() does not return */
 618 }
 619
 620 /************************************************************************
 621  *
 622  * This is the next part if the initialization sequence: we are now
 623  * running from RAM and have a "normal" C environment, i. e. global
 624  * data can be written, BSS has been cleared, the stack size in not
 625  * that critical any more, etc.
 626  *
 627  ************************************************************************
 628  */
 629 void board_init_r (gd_t *id, ulong dest_addr)
 630 {
 631         char *s;
 632         bd_t *bd;
 633         ulong malloc_start;
 634
 635 #ifndef CONFIG_SYS_NO_FLASH
 636         ulong flash_size;
 637 #endif
 638
 639         gd = id;                /* initialize RAM version of global data */
 640         bd = gd->bd;
 641
 642         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 643
 644         /* The Malloc area is immediately below the monitor copy in DRAM */
 645         malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 646
 647 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 648         /*
 649          * The gd->cpu pointer is set to an address in flash before relocation.
 650          * We need to update it to point to the same CPU entry in RAM.
 651          */
 652         gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE;
 653 #endif
 654
 655 #ifdef CONFIG_SERIAL_MULTI
 656         serial_initialize();
 657 #endif
 658
 659         debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 660
 661         WATCHDOG_RESET ();
 662
 663         /*
 664          * Setup trap handlers
 665          */
 666         trap_init (dest_addr);
 667
 668 #ifdef CONFIG_ADDR_MAP
 669         init_addr_map();
 670 #endif
 671
 672 #if defined(CONFIG_BOARD_EARLY_INIT_R)
 673         board_early_init_r ();
 674 #endif
 675
 676         monitor_flash_len = (ulong)&__init_end - dest_addr;
 677
 678         WATCHDOG_RESET ();
 679
 680 #ifdef CONFIG_LOGBUFFER
 681         logbuff_init_ptrs ();
 682 #endif
 683 #ifdef CONFIG_POST
 684         post_output_backlog ();
 685 #endif
 686
 687         WATCHDOG_RESET();
 688
 689 #if defined(CONFIG_SYS_DELAYED_ICACHE) || defined(CONFIG_MPC83xx)
 690         icache_enable ();       /* it's time to enable the instruction cache */
 691 #endif
 692
 693 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
 694         unlock_ram_in_cache();  /* it's time to unlock D-cache in e500 */
 695 #endif
 696
 697 #if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45)
 698         /*
 699          * Do PCI configuration on BAB7xx and CPC45 _before_ the flash
 700          * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
 701          * bridge there.
 702          */
 703         pci_init ();
 704 #endif
 705 #if defined(CONFIG_BAB7xx)
 706         /*
 707          * Initialise the ISA bridge
 708          */
 709         initialise_w83c553f ();
 710 #endif
 711
 712         asm ("sync ; isync");
 713
 714         mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
 715
 716 #if !defined(CONFIG_SYS_NO_FLASH)
 717         puts ("FLASH: ");
 718
 719         if ((flash_size = flash_init ()) > 0) {
 720 # ifdef CONFIG_SYS_FLASH_CHECKSUM
 721                 print_size (flash_size, "");
 722                 /*
 723                  * Compute and print flash CRC if flashchecksum is set to 'y'
 724                  *
 725                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 726                  */
 727                 s = getenv ("flashchecksum");
 728                 if (s && (*s == 'y')) {
 729                         printf ("  CRC: %08X",
 730                                 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
 731                         );
 732                 }
 733                 putc ('\n');
 734 # else  /* !CONFIG_SYS_FLASH_CHECKSUM */
 735                 print_size (flash_size, "\n");
 736 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
 737         } else {
 738                 puts (failed);
 739                 hang ();
 740         }
 741
 742         bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;      /* update start of FLASH memory    */
 743         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 744
 745 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
 746         /* Make a update of the Memctrl. */
 747         update_flash_size (flash_size);
 748 #endif
 749
 750
 751 # if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
 752         /* flash mapped at end of memory map */
 753         bd->bi_flashoffset = TEXT_BASE + flash_size;
 754 # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
 755         bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor  */
 756 # else
 757         bd->bi_flashoffset = 0;
 758 # endif
 759 #else   /* CONFIG_SYS_NO_FLASH */
 760
 761         bd->bi_flashsize = 0;
 762         bd->bi_flashstart = 0;
 763         bd->bi_flashoffset = 0;
 764 #endif /* !CONFIG_SYS_NO_FLASH */
 765
 766         WATCHDOG_RESET ();
 767
 768         /* initialize higher level parts of CPU like time base and timers */
 769         cpu_init_r ();
 770
 771         WATCHDOG_RESET ();
 772
 773 #ifdef CONFIG_SPI
 774 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
 775         spi_init_f ();
 776 # endif
 777         spi_init_r ();
 778 #endif
 779
 780 #if defined(CONFIG_CMD_NAND)
 781         WATCHDOG_RESET ();
 782         puts ("NAND:  ");
 783         nand_init();            /* go init the NAND */
 784 #endif
 785
 786         /* relocate environment function pointers etc. */
 787         env_relocate ();
 788
 789         /*
 790          * Fill in missing fields of bd_info.
 791          * We do this here, where we have "normal" access to the
 792          * environment; we used to do this still running from ROM,
 793          * where had to use getenv_r(), which can be pretty slow when
 794          * the environment is in EEPROM.
 795          */
 796
 797 #if defined(CONFIG_SYS_EXTBDINFO)
 798 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 799 #if defined(CONFIG_I2CFAST)
 800         /*
 801          * set bi_iic_fast for linux taking environment variable
 802          * "i2cfast" into account
 803          */
 804         {
 805                 char *s = getenv ("i2cfast");
 806                 if (s && ((*s == 'y') || (*s == 'Y'))) {
 807                         bd->bi_iic_fast[0] = 1;
 808                         bd->bi_iic_fast[1] = 1;
 809                 } else {
 810                         bd->bi_iic_fast[0] = 0;
 811                         bd->bi_iic_fast[1] = 0;
 812                 }
 813         }
 814 #else
 815         bd->bi_iic_fast[0] = 0;
 816         bd->bi_iic_fast[1] = 0;
 817 #endif  /* CONFIG_I2CFAST */
 818 #endif  /* CONFIG_405GP, CONFIG_405EP */
 819 #endif  /* CONFIG_SYS_EXTBDINFO */
 820
 821 #if defined(CONFIG_SC3)
 822         sc3_read_eeprom();
 823 #endif
 824
 825 #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET)
 826         mac_read_from_eeprom();
 827 #endif
 828
 829 #ifdef  CONFIG_HERMES
 830         if ((gd->board_type >> 16) == 2)
 831                 bd->bi_ethspeed = gd->board_type & 0xFFFF;
 832         else
 833                 bd->bi_ethspeed = 0xFFFF;
 834 #endif
 835
 836 #ifdef CONFIG_CMD_NET
 837         /* kept around for legacy kernels only ... ignore the next section */
 838         eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
 839 #ifdef CONFIG_HAS_ETH1
 840         eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
 841 #endif
 842 #ifdef CONFIG_HAS_ETH2
 843         eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
 844 #endif
 845 #ifdef CONFIG_HAS_ETH3
 846         eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
 847 #endif
 848 #ifdef CONFIG_HAS_ETH4
 849         eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
 850 #endif
 851 #ifdef CONFIG_HAS_ETH5
 852         eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
 853 #endif
 854 #endif /* CONFIG_CMD_NET */
 855
 856         /* IP Address */
 857         bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 858
 859         WATCHDOG_RESET ();
 860
 861 #if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
 862         /*
 863          * Do pci configuration
 864          */
 865         pci_init ();
 866 #endif
 867
 868 /** leave this here (after malloc(), environment and PCI are working) **/
 869         /* Initialize stdio devices */
 870         stdio_init ();
 871
 872         /* Initialize the jump table for applications */
 873         jumptable_init ();
 874
 875 #if defined(CONFIG_API)
 876         /* Initialize API */
 877         api_init ();
 878 #endif
 879
 880         /* Initialize the console (after the relocation and devices init) */
 881         console_init_r ();
 882
 883 #if defined(CONFIG_MISC_INIT_R)
 884         /* miscellaneous platform dependent initialisations */
 885         misc_init_r ();
 886 #endif
 887
 888 #ifdef  CONFIG_HERMES
 889         if (bd->bi_ethspeed != 0xFFFF)
 890                 hermes_start_lxt980 ((int) bd->bi_ethspeed);
 891 #endif
 892
 893 #if defined(CONFIG_CMD_KGDB)
 894         WATCHDOG_RESET ();
 895         puts ("KGDB:  ");
 896         kgdb_init ();
 897 #endif
 898
 899         debug ("U-Boot relocated to %08lx\n", dest_addr);
 900
 901         /*
 902          * Enable Interrupts
 903          */
 904         interrupt_init ();
 905
 906         /* Must happen after interrupts are initialized since
 907          * an irq handler gets installed
 908          */
 909 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
 910         serial_buffered_init();
 911 #endif
 912
 913 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
 914         status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
 915 #endif
 916
 917         udelay (20);
 918
 919         set_timer (0);
 920
 921         /* Initialize from environment */
 922         if ((s = getenv ("loadaddr")) != NULL) {
 923                 load_addr = simple_strtoul (s, NULL, 16);
 924         }
 925 #if defined(CONFIG_CMD_NET)
 926         if ((s = getenv ("bootfile")) != NULL) {
 927                 copy_filename (BootFile, s, sizeof (BootFile));
 928         }
 929 #endif
 930
 931         WATCHDOG_RESET ();
 932
 933 #if defined(CONFIG_DTT)         /* Digital Thermometers and Thermostats */
 934         dtt_init ();
 935 #endif
 936 #if defined(CONFIG_CMD_SCSI)
 937         WATCHDOG_RESET ();
 938         puts ("SCSI:  ");
 939         scsi_init ();
 940 #endif
 941
 942 #ifdef CONFIG_GENERIC_MMC
 943         WATCHDOG_RESET ();
 944         puts ("MMC:  ");
 945         mmc_initialize (bd);
 946 #endif
 947
 948 #if defined(CONFIG_CMD_DOC)
 949         WATCHDOG_RESET ();
 950         puts ("DOC:   ");
 951         doc_init ();
 952 #endif
 953
 954 #ifdef CONFIG_BITBANGMII
 955         bb_miiphy_init();
 956 #endif
 957 #if defined(CONFIG_CMD_NET)
 958 #if defined(CONFIG_NET_MULTI)
 959         WATCHDOG_RESET ();
 960         puts ("Net:   ");
 961 #endif
 962         eth_initialize (bd);
 963 #endif
 964
 965 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
 966         WATCHDOG_RESET ();
 967         debug ("Reset Ethernet PHY\n");
 968         reset_phy ();
 969 #endif
 970
 971 #ifdef CONFIG_POST
 972         post_run (NULL, POST_RAM | post_bootmode_get(0));
 973 #endif
 974
 975 #if defined(CONFIG_CMD_PCMCIA) \
 976     && !defined(CONFIG_CMD_IDE)
 977         WATCHDOG_RESET ();
 978         puts ("PCMCIA:");
 979         pcmcia_init ();
 980 #endif
 981
 982 #if defined(CONFIG_CMD_IDE)
 983         WATCHDOG_RESET ();
 984 # ifdef CONFIG_IDE_8xx_PCCARD
 985         puts ("PCMCIA:");
 986 # else
 987         puts ("IDE:   ");
 988 #endif
 989 #if defined(CONFIG_START_IDE)
 990         if (board_start_ide())
 991                 ide_init ();
 992 #else
 993         ide_init ();
 994 #endif
 995 #endif
 996
 997 #ifdef CONFIG_LAST_STAGE_INIT
 998         WATCHDOG_RESET ();
 999         /*
1000          * Some parts can be only initialized if all others (like
1001          * Interrupts) are up and running (i.e. the PC-style ISA
1002          * keyboard).
1003          */
1004         last_stage_init ();
1005 #endif
1006
1007 #if defined(CONFIG_CMD_BEDBUG)
1008         WATCHDOG_RESET ();
1009         bedbug_init ();
1010 #endif
1011
1012 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
1013         /*
1014          * Export available size of memory for Linux,
1015          * taking into account the protected RAM at top of memory
1016          */
1017         {
1018                 ulong pram;
1019                 uchar memsz[32];
1020 #ifdef CONFIG_PRAM
1021                 char *s;
1022
1023                 if ((s = getenv ("pram")) != NULL) {
1024                         pram = simple_strtoul (s, NULL, 10);
1025                 } else {
1026                         pram = CONFIG_PRAM;
1027                 }
1028 #else
1029                 pram=0;
1030 #endif
1031 #ifdef CONFIG_LOGBUFFER
1032 #ifndef CONFIG_ALT_LB_ADDR
1033                 /* Also take the logbuffer into account (pram is in kB) */
1034                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
1035 #endif
1036 #endif
1037                 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
1038                 setenv ("mem", (char *)memsz);
1039         }
1040 #endif
1041
1042 #ifdef CONFIG_PS2KBD
1043         puts ("PS/2:  ");
1044         kbd_init();
1045 #endif
1046
1047 #ifdef CONFIG_MODEM_SUPPORT
1048  {
1049          extern int do_mdm_init;
1050          do_mdm_init = gd->do_mdm_init;
1051  }
1052 #endif
1053
1054         /* Initialization complete - start the monitor */
1055
1056         /* main_loop() can return to retry autoboot, if so just run it again. */
1057         for (;;) {
1058                 WATCHDOG_RESET ();
1059                 main_loop ();
1060         }
1061
1062         /* NOTREACHED - no way out of command loop except booting */
1063 }
1064
1065 void hang (void)
1066 {
1067         puts ("### ERROR ### Please RESET the board ###\n");
1068         show_boot_progress(-30);
1069         for (;;);
1070 }
1071
1072
1073 #if 0 /* We could use plain global data, but the resulting code is bigger */
1074 /*
1075  * Pointer to initial global data area
1076  *
1077  * Here we initialize it.
1078  */
1079 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
1080 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
1081 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1082 #endif  /* 0 */
1083
1084 /************************************************************************/