arch/arm/lib/board.c

   1 /*
   2  * (C) Copyright 2002-2006
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * (C) Copyright 2002
   6  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
   7  * Marius Groeger <mgroeger@sysgo.de>
   8  *
   9  * See file CREDITS for list of people who contributed to this
  10  * project.
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License as
  14  * published by the Free Software Foundation; either version 2 of
  15  * the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  25  * MA 02111-1307 USA
  26  */
  27
  28 /*
  29  * To match the U-Boot user interface on ARM platforms to the U-Boot
  30  * standard (as on PPC platforms), some messages with debug character
  31  * are removed from the default U-Boot build.
  32  *
  33  * Define DEBUG here if you want additional info as shown below
  34  * printed upon startup:
  35  *
  36  * U-Boot code: 00F00000 -> 00F3C774  BSS: -> 00FC3274
  37  * IRQ Stack: 00ebff7c
  38  * FIQ Stack: 00ebef7c
  39  */
  40
  41 #include <common.h>
  42 #include <command.h>
  43 #include <malloc.h>
  44 #include <stdio_dev.h>
  45 #include <timestamp.h>
  46 #include <version.h>
  47 #include <net.h>
  48 #include <serial.h>
  49 #include <nand.h>
  50 #include <onenand_uboot.h>
  51 #include <mmc.h>
  52
  53 #ifdef CONFIG_BITBANGMII
  54 #include <miiphy.h>
  55 #endif
  56
  57 #ifdef CONFIG_DRIVER_SMC91111
  58 #include "../drivers/net/smc91111.h"
  59 #endif
  60 #ifdef CONFIG_DRIVER_LAN91C96
  61 #include "../drivers/net/lan91c96.h"
  62 #endif
  63
  64 DECLARE_GLOBAL_DATA_PTR;
  65
  66 ulong monitor_flash_len;
  67
  68 #ifdef CONFIG_HAS_DATAFLASH
  69 extern int  AT91F_DataflashInit(void);
  70 extern void dataflash_print_info(void);
  71 #endif
  72
  73 #ifndef CONFIG_IDENT_STRING
  74 #define CONFIG_IDENT_STRING ""
  75 #endif
  76
  77 const char version_string[] =
  78         U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"CONFIG_IDENT_STRING;
  79
  80 #ifdef CONFIG_DRIVER_RTL8019
  81 extern void rtl8019_get_enetaddr (uchar * addr);
  82 #endif
  83
  84 #if defined(CONFIG_HARD_I2C) || \
  85     defined(CONFIG_SOFT_I2C)
  86 #include <i2c.h>
  87 #endif
  88
  89
  90 /************************************************************************
  91  * Coloured LED functionality
  92  ************************************************************************
  93  * May be supplied by boards if desired
  94  */
  95 void inline __coloured_LED_init (void) {}
  96 void coloured_LED_init (void) __attribute__((weak, alias("__coloured_LED_init")));
  97 void inline __red_LED_on (void) {}
  98 void red_LED_on (void) __attribute__((weak, alias("__red_LED_on")));
  99 void inline __red_LED_off(void) {}
 100 void red_LED_off(void) __attribute__((weak, alias("__red_LED_off")));
 101 void inline __green_LED_on(void) {}
 102 void green_LED_on(void) __attribute__((weak, alias("__green_LED_on")));
 103 void inline __green_LED_off(void) {}
 104 void green_LED_off(void) __attribute__((weak, alias("__green_LED_off")));
 105 void inline __yellow_LED_on(void) {}
 106 void yellow_LED_on(void) __attribute__((weak, alias("__yellow_LED_on")));
 107 void inline __yellow_LED_off(void) {}
 108 void yellow_LED_off(void) __attribute__((weak, alias("__yellow_LED_off")));
 109 void inline __blue_LED_on(void) {}
 110 void blue_LED_on(void) __attribute__((weak, alias("__blue_LED_on")));
 111 void inline __blue_LED_off(void) {}
 112 void blue_LED_off(void) __attribute__((weak, alias("__blue_LED_off")));
 113
 114 /************************************************************************
 115  * Init Utilities                                                       *
 116  ************************************************************************
 117  * Some of this code should be moved into the core functions,
 118  * or dropped completely,
 119  * but let's get it working (again) first...
 120  */
 121
 122 #if defined(CONFIG_ARM_DCC) && !defined(CONFIG_BAUDRATE)
 123 #define CONFIG_BAUDRATE 115200
 124 #endif
 125 static int init_baudrate (void)
 126 {
 127         char tmp[64];   /* long enough for environment variables */
 128         int i = getenv_f("baudrate", tmp, sizeof (tmp));
 129
 130 #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
 131         gd->baudrate = (i > 0)
 132 #else
 133         gd->bd->bi_baudrate = gd->baudrate = (i > 0)
 134 #endif
 135                         ? (int) simple_strtoul (tmp, NULL, 10)
 136                         : CONFIG_BAUDRATE;
 137
 138         return (0);
 139 }
 140
 141 static int display_banner (void)
 142 {
 143         printf ("\n\n%s\n\n", version_string);
 144         debug ("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
 145 #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
 146                _TEXT_BASE,
 147 #else
 148                _armboot_start,
 149 #endif
 150                _bss_start_ofs+_TEXT_BASE, _bss_end_ofs+_TEXT_BASE);
 151 #ifdef CONFIG_MODEM_SUPPORT
 152         debug ("Modem Support enabled\n");
 153 #endif
 154 #ifdef CONFIG_USE_IRQ
 155         debug ("IRQ Stack: %08lx\n", IRQ_STACK_START);
 156         debug ("FIQ Stack: %08lx\n", FIQ_STACK_START);
 157 #endif
 158
 159         return (0);
 160 }
 161
 162 /*
 163  * WARNING: this code looks "cleaner" than the PowerPC version, but
 164  * has the disadvantage that you either get nothing, or everything.
 165  * On PowerPC, you might see "DRAM: " before the system hangs - which
 166  * gives a simple yet clear indication which part of the
 167  * initialization if failing.
 168  */
 169 static int display_dram_config (void)
 170 {
 171         int i;
 172
 173 #ifdef DEBUG
 174         puts ("RAM Configuration:\n");
 175
 176         for(i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
 177                 printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
 178                 print_size (gd->bd->bi_dram[i].size, "\n");
 179         }
 180 #else
 181         ulong size = 0;
 182
 183         for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
 184                 size += gd->bd->bi_dram[i].size;
 185         }
 186         puts("DRAM:  ");
 187         print_size(size, "\n");
 188 #endif
 189
 190         return (0);
 191 }
 192
 193 #if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
 194 #ifndef CONFIG_SYS_NO_FLASH
 195 static void display_flash_config (ulong size)
 196 {
 197         puts ("Flash: ");
 198         print_size (size, "\n");
 199 }
 200 #endif /* CONFIG_SYS_NO_FLASH */
 201 #endif
 202
 203 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 204 static int init_func_i2c (void)
 205 {
 206         puts ("I2C:   ");
 207         i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 208         puts ("ready\n");
 209         return (0);
 210 }
 211 #endif
 212
 213 #if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI)
 214 #include <pci.h>
 215 static int arm_pci_init(void)
 216 {
 217         pci_init();
 218         return 0;
 219 }
 220 #endif /* CONFIG_CMD_PCI || CONFIG_PCI */
 221
 222 /*
 223  * Breathe some life into the board...
 224  *
 225  * Initialize a serial port as console, and carry out some hardware
 226  * tests.
 227  *
 228  * The first part of initialization is running from Flash memory;
 229  * its main purpose is to initialize the RAM so that we
 230  * can relocate the monitor code to RAM.
 231  */
 232
 233 /*
 234  * All attempts to come up with a "common" initialization sequence
 235  * that works for all boards and architectures failed: some of the
 236  * requirements are just _too_ different. To get rid of the resulting
 237  * mess of board dependent #ifdef'ed code we now make the whole
 238  * initialization sequence configurable to the user.
 239  *
 240  * The requirements for any new initalization function is simple: it
 241  * receives a pointer to the "global data" structure as it's only
 242  * argument, and returns an integer return code, where 0 means
 243  * "continue" and != 0 means "fatal error, hang the system".
 244  */
 245 typedef int (init_fnc_t) (void);
 246
 247 int print_cpuinfo (void);
 248
 249 #if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
 250 init_fnc_t *init_sequence[] = {
 251 #if defined(CONFIG_ARCH_CPU_INIT)
 252         arch_cpu_init,          /* basic arch cpu dependent setup */
 253 #endif
 254         board_init,             /* basic board dependent setup */
 255 #if defined(CONFIG_USE_IRQ)
 256         interrupt_init,         /* set up exceptions */
 257 #endif
 258         timer_init,             /* initialize timer */
 259 #ifdef CONFIG_FSL_ESDHC
 260         get_clocks,
 261 #endif
 262         env_init,               /* initialize environment */
 263         init_baudrate,          /* initialze baudrate settings */
 264         serial_init,            /* serial communications setup */
 265         console_init_f,         /* stage 1 init of console */
 266         display_banner,         /* say that we are here */
 267 #if defined(CONFIG_DISPLAY_CPUINFO)
 268         print_cpuinfo,          /* display cpu info (and speed) */
 269 #endif
 270 #if defined(CONFIG_DISPLAY_BOARDINFO)
 271         checkboard,             /* display board info */
 272 #endif
 273 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 274         init_func_i2c,
 275 #endif
 276         dram_init,              /* configure available RAM banks */
 277 #if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI)
 278         arm_pci_init,
 279 #endif
 280         display_dram_config,
 281         NULL,
 282 };
 283
 284 void start_armboot (void)
 285 {
 286         init_fnc_t **init_fnc_ptr;
 287         char *s;
 288 #if defined(CONFIG_VFD) || defined(CONFIG_LCD)
 289         unsigned long addr;
 290 #endif
 291
 292         /* Pointer is writable since we allocated a register for it */
 293         gd = (gd_t*)(_armboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t));
 294         /* compiler optimization barrier needed for GCC >= 3.4 */
 295         __asm__ __volatile__("": : :"memory");
 296
 297         memset ((void*)gd, 0, sizeof (gd_t));
 298         gd->bd = (bd_t*)((char*)gd - sizeof(bd_t));
 299         memset (gd->bd, 0, sizeof (bd_t));
 300
 301         gd->flags |= GD_FLG_RELOC;
 302
 303         monitor_flash_len = _bss_start - _armboot_start;
 304
 305         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 306                 if ((*init_fnc_ptr)() != 0) {
 307                         hang ();
 308                 }
 309         }
 310
 311         /* armboot_start is defined in the board-specific linker script */
 312         mem_malloc_init (_armboot_start - CONFIG_SYS_MALLOC_LEN,
 313                         CONFIG_SYS_MALLOC_LEN);
 314
 315 #ifndef CONFIG_SYS_NO_FLASH
 316         /* configure available FLASH banks */
 317         display_flash_config (flash_init ());
 318 #endif /* CONFIG_SYS_NO_FLASH */
 319
 320 #ifdef CONFIG_VFD
 321 #       ifndef PAGE_SIZE
 322 #         define PAGE_SIZE 4096
 323 #       endif
 324         /*
 325          * reserve memory for VFD display (always full pages)
 326          */
 327         /* bss_end is defined in the board-specific linker script */
 328         addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 329         vfd_setmem (addr);
 330         gd->fb_base = addr;
 331 #endif /* CONFIG_VFD */
 332
 333 #ifdef CONFIG_LCD
 334         /* board init may have inited fb_base */
 335         if (!gd->fb_base) {
 336 #               ifndef PAGE_SIZE
 337 #                 define PAGE_SIZE 4096
 338 #               endif
 339                 /*
 340                  * reserve memory for LCD display (always full pages)
 341                  */
 342                 /* bss_end is defined in the board-specific linker script */
 343                 addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 344                 lcd_setmem (addr);
 345                 gd->fb_base = addr;
 346         }
 347 #endif /* CONFIG_LCD */
 348
 349 #if defined(CONFIG_CMD_NAND)
 350         puts ("NAND:  ");
 351         nand_init();            /* go init the NAND */
 352 #endif
 353
 354 #if defined(CONFIG_CMD_ONENAND)
 355         onenand_init();
 356 #endif
 357
 358 #ifdef CONFIG_HAS_DATAFLASH
 359         AT91F_DataflashInit();
 360         dataflash_print_info();
 361 #endif
 362
 363 #ifdef CONFIG_GENERIC_MMC
 364 /*
 365  * MMC initialization is called before relocating env.
 366  * Thus It is required that operations like pin multiplexer
 367  * be put in board_init.
 368  */
 369         puts ("MMC:   ");
 370         mmc_initialize (gd->bd);
 371 #endif
 372
 373         /* initialize environment */
 374         env_relocate ();
 375
 376 #ifdef CONFIG_VFD
 377         /* must do this after the framebuffer is allocated */
 378         drv_vfd_init();
 379 #endif /* CONFIG_VFD */
 380
 381 #ifdef CONFIG_SERIAL_MULTI
 382         serial_initialize();
 383 #endif
 384
 385         /* IP Address */
 386         gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 387
 388         stdio_init ();  /* get the devices list going. */
 389
 390         jumptable_init ();
 391
 392 #if defined(CONFIG_API)
 393         /* Initialize API */
 394         api_init ();
 395 #endif
 396
 397         console_init_r ();      /* fully init console as a device */
 398
 399 #if defined(CONFIG_ARCH_MISC_INIT)
 400         /* miscellaneous arch dependent initialisations */
 401         arch_misc_init ();
 402 #endif
 403 #if defined(CONFIG_MISC_INIT_R)
 404         /* miscellaneous platform dependent initialisations */
 405         misc_init_r ();
 406 #endif
 407
 408         /* enable exceptions */
 409         enable_interrupts ();
 410
 411         /* Perform network card initialisation if necessary */
 412
 413 #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
 414         /* XXX: this needs to be moved to board init */
 415         if (getenv ("ethaddr")) {
 416                 uchar enetaddr[6];
 417                 eth_getenv_enetaddr("ethaddr", enetaddr);
 418                 smc_set_mac_addr(enetaddr);
 419         }
 420 #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
 421
 422         /* Initialize from environment */
 423         if ((s = getenv ("loadaddr")) != NULL) {
 424                 load_addr = simple_strtoul (s, NULL, 16);
 425         }
 426 #if defined(CONFIG_CMD_NET)
 427         if ((s = getenv ("bootfile")) != NULL) {
 428                 copy_filename (BootFile, s, sizeof (BootFile));
 429         }
 430 #endif
 431
 432 #ifdef BOARD_LATE_INIT
 433         board_late_init ();
 434 #endif
 435
 436 #ifdef CONFIG_BITBANGMII
 437         bb_miiphy_init();
 438 #endif
 439 #if defined(CONFIG_CMD_NET)
 440 #if defined(CONFIG_NET_MULTI)
 441         puts ("Net:   ");
 442 #endif
 443         eth_initialize(gd->bd);
 444 #if defined(CONFIG_RESET_PHY_R)
 445         debug ("Reset Ethernet PHY\n");
 446         reset_phy();
 447 #endif
 448 #endif
 449         /* main_loop() can return to retry autoboot, if so just run it again. */
 450         for (;;) {
 451                 main_loop ();
 452         }
 453
 454         /* NOTREACHED - no way out of command loop except booting */
 455 }
 456 #else
 457 void __dram_init_banksize(void)
 458 {
 459         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 460         gd->bd->bi_dram[0].size =  gd->ram_size;
 461 }
 462 void dram_init_banksize(void)
 463         __attribute__((weak, alias("__dram_init_banksize")));
 464
 465 init_fnc_t *init_sequence[] = {
 466 #if defined(CONFIG_ARCH_CPU_INIT)
 467         arch_cpu_init,          /* basic arch cpu dependent setup */
 468 #endif
 469 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 470         board_early_init_f,
 471 #endif
 472         timer_init,             /* initialize timer */
 473 #ifdef CONFIG_FSL_ESDHC
 474         get_clocks,
 475 #endif
 476         env_init,               /* initialize environment */
 477         init_baudrate,          /* initialze baudrate settings */
 478         serial_init,            /* serial communications setup */
 479         console_init_f,         /* stage 1 init of console */
 480         display_banner,         /* say that we are here */
 481 #if defined(CONFIG_DISPLAY_CPUINFO)
 482         print_cpuinfo,          /* display cpu info (and speed) */
 483 #endif
 484 #if defined(CONFIG_DISPLAY_BOARDINFO)
 485         checkboard,             /* display board info */
 486 #endif
 487 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 488         init_func_i2c,
 489 #endif
 490         dram_init,              /* configure available RAM banks */
 491 #if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI)
 492         arm_pci_init,
 493 #endif
 494         NULL,
 495 };
 496
 497 void board_init_f (ulong bootflag)
 498 {
 499         bd_t *bd;
 500         init_fnc_t **init_fnc_ptr;
 501         gd_t *id;
 502         ulong addr, addr_sp;
 503
 504         /* Pointer is writable since we allocated a register for it */
 505         gd = (gd_t *) (CONFIG_SYS_INIT_SP_ADDR);
 506         /* compiler optimization barrier needed for GCC >= 3.4 */
 507         __asm__ __volatile__("": : :"memory");
 508
 509         memset ((void*)gd, 0, sizeof (gd_t));
 510
 511         gd->mon_len = _bss_end_ofs;
 512
 513         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 514                 if ((*init_fnc_ptr)() != 0) {
 515                         hang ();
 516                 }
 517         }
 518
 519         debug ("monitor len: %08lX\n", gd->mon_len);
 520         /*
 521          * Ram is setup, size stored in gd !!
 522          */
 523         debug ("ramsize: %08lX\n", gd->ram_size);
 524 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
 525         /*
 526          * Subtract specified amount of memory to hide so that it won't
 527          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 528          * the Linux kernel should now get passed the now "corrected"
 529          * memory size and won't touch it either. This should work
 530          * for arch/ppc and arch/powerpc. Only Linux board ports in
 531          * arch/powerpc with bootwrapper support, that recalculate the
 532          * memory size from the SDRAM controller setup will have to
 533          * get fixed.
 534          */
 535         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 536 #endif
 537
 538         addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
 539
 540 #ifdef CONFIG_LOGBUFFER
 541 #ifndef CONFIG_ALT_LB_ADDR
 542         /* reserve kernel log buffer */
 543         addr -= (LOGBUFF_RESERVE);
 544         debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
 545 #endif
 546 #endif
 547
 548 #ifdef CONFIG_PRAM
 549         /*
 550          * reserve protected RAM
 551          */
 552         i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
 553         reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
 554         addr -= (reg << 10);            /* size is in kB */
 555         debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 556 #endif /* CONFIG_PRAM */
 557
 558 #if !(defined(CONFIG_SYS_NO_ICACHE) && defined(CONFIG_SYS_NO_DCACHE))
 559         /* reserve TLB table */
 560         addr -= (4096 * 4);
 561
 562         /* round down to next 64 kB limit */
 563         addr &= ~(0x10000 - 1);
 564
 565         gd->tlb_addr = addr;
 566         debug ("TLB table at: %08lx\n", addr);
 567 #endif
 568
 569         /* round down to next 4 kB limit */
 570         addr &= ~(4096 - 1);
 571         debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 572
 573 #ifdef CONFIG_VFD
 574 #       ifndef PAGE_SIZE
 575 #         define PAGE_SIZE 4096
 576 #       endif
 577         /*
 578          * reserve memory for VFD display (always full pages)
 579          */
 580         addr -= vfd_setmem (addr);
 581         gd->fb_base = addr;
 582 #endif /* CONFIG_VFD */
 583
 584 #ifdef CONFIG_LCD
 585         /* reserve memory for LCD display (always full pages) */
 586         addr = lcd_setmem (addr);
 587         gd->fb_base = addr;
 588 #endif /* CONFIG_LCD */
 589
 590         /*
 591          * reserve memory for U-Boot code, data & bss
 592          * round down to next 4 kB limit
 593          */
 594         addr -= gd->mon_len;
 595         addr &= ~(4096 - 1);
 596
 597         debug ("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
 598
 599 #ifndef CONFIG_PRELOADER
 600         /*
 601          * reserve memory for malloc() arena
 602          */
 603         addr_sp = addr - TOTAL_MALLOC_LEN;
 604         debug ("Reserving %dk for malloc() at: %08lx\n",
 605                         TOTAL_MALLOC_LEN >> 10, addr_sp);
 606         /*
 607          * (permanently) allocate a Board Info struct
 608          * and a permanent copy of the "global" data
 609          */
 610         addr_sp -= sizeof (bd_t);
 611         bd = (bd_t *) addr_sp;
 612         gd->bd = bd;
 613         debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
 614                         sizeof (bd_t), addr_sp);
 615         addr_sp -= sizeof (gd_t);
 616         id = (gd_t *) addr_sp;
 617         debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
 618                         sizeof (gd_t), addr_sp);
 619
 620         /* setup stackpointer for exeptions */
 621         gd->irq_sp = addr_sp;
 622 #ifdef CONFIG_USE_IRQ
 623         addr_sp -= (CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ);
 624         debug ("Reserving %zu Bytes for IRQ stack at: %08lx\n",
 625                 CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
 626 #endif
 627         /* leave 3 words for abort-stack    */
 628         addr_sp -= 3;
 629
 630         /* 8-byte alignment for ABI compliance */
 631         addr_sp &= ~0x07;
 632 #else
 633         addr_sp += 128; /* leave 32 words for abort-stack   */
 634         gd->irq_sp = addr_sp;
 635 #endif
 636
 637         debug ("New Stack Pointer is: %08lx\n", addr_sp);
 638
 639 #ifdef CONFIG_POST
 640         post_bootmode_init();
 641         post_run (NULL, POST_ROM | post_bootmode_get(0));
 642 #endif
 643
 644         gd->bd->bi_baudrate = gd->baudrate;
 645         /* Ram ist board specific, so move it to board code ... */
 646         dram_init_banksize();
 647         display_dram_config();  /* and display it */
 648
 649         gd->relocaddr = addr;
 650         gd->start_addr_sp = addr_sp;
 651         gd->reloc_off = addr - _TEXT_BASE;
 652         debug ("relocation Offset is: %08lx\n", gd->reloc_off);
 653         memcpy (id, (void *)gd, sizeof (gd_t));
 654
 655         relocate_code (addr_sp, id, addr);
 656
 657         /* NOTREACHED - relocate_code() does not return */
 658 }
 659
 660 #if !defined(CONFIG_SYS_NO_FLASH)
 661 static char *failed = "*** failed ***\n";
 662 #endif
 663
 664 /************************************************************************
 665  *
 666  * This is the next part if the initialization sequence: we are now
 667  * running from RAM and have a "normal" C environment, i. e. global
 668  * data can be written, BSS has been cleared, the stack size in not
 669  * that critical any more, etc.
 670  *
 671  ************************************************************************
 672  */
 673
 674 void board_init_r (gd_t *id, ulong dest_addr)
 675 {
 676         char *s;
 677         bd_t *bd;
 678         ulong malloc_start;
 679 #if !defined(CONFIG_SYS_NO_FLASH)
 680         ulong flash_size;
 681 #endif
 682
 683         gd = id;
 684         bd = gd->bd;
 685
 686         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 687
 688         monitor_flash_len = _bss_start_ofs;
 689         debug ("monitor flash len: %08lX\n", monitor_flash_len);
 690         board_init();   /* Setup chipselects */
 691
 692 #ifdef CONFIG_SERIAL_MULTI
 693         serial_initialize();
 694 #endif
 695
 696         debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 697
 698 #ifdef CONFIG_LOGBUFFER
 699         logbuff_init_ptrs ();
 700 #endif
 701 #ifdef CONFIG_POST
 702         post_output_backlog ();
 703 #endif
 704
 705         /* The Malloc area is immediately below the monitor copy in DRAM */
 706         malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 707         mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
 708
 709 #if !defined(CONFIG_SYS_NO_FLASH)
 710         puts ("FLASH: ");
 711
 712         if ((flash_size = flash_init ()) > 0) {
 713 # ifdef CONFIG_SYS_FLASH_CHECKSUM
 714                 print_size (flash_size, "");
 715                 /*
 716                  * Compute and print flash CRC if flashchecksum is set to 'y'
 717                  *
 718                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 719                  */
 720                 s = getenv ("flashchecksum");
 721                 if (s && (*s == 'y')) {
 722                         printf ("  CRC: %08X",
 723                                 crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
 724                         );
 725                 }
 726                 putc ('\n');
 727 # else  /* !CONFIG_SYS_FLASH_CHECKSUM */
 728                 print_size (flash_size, "\n");
 729 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
 730         } else {
 731                 puts (failed);
 732                 hang ();
 733         }
 734 #endif
 735
 736 #if defined(CONFIG_CMD_NAND)
 737         puts ("NAND:  ");
 738         nand_init();            /* go init the NAND */
 739 #endif
 740
 741 #if defined(CONFIG_CMD_ONENAND)
 742         onenand_init();
 743 #endif
 744
 745 #ifdef CONFIG_GENERIC_MMC
 746        puts("MMC:   ");
 747        mmc_initialize(bd);
 748 #endif
 749
 750 #ifdef CONFIG_HAS_DATAFLASH
 751         AT91F_DataflashInit();
 752         dataflash_print_info();
 753 #endif
 754
 755         /* initialize environment */
 756         env_relocate ();
 757
 758 #ifdef CONFIG_VFD
 759         /* must do this after the framebuffer is allocated */
 760         drv_vfd_init();
 761 #endif /* CONFIG_VFD */
 762
 763         /* IP Address */
 764         gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 765
 766         stdio_init ();  /* get the devices list going. */
 767
 768         jumptable_init ();
 769
 770 #if defined(CONFIG_API)
 771         /* Initialize API */
 772         api_init ();
 773 #endif
 774
 775         console_init_r ();      /* fully init console as a device */
 776
 777 #if defined(CONFIG_ARCH_MISC_INIT)
 778         /* miscellaneous arch dependent initialisations */
 779         arch_misc_init ();
 780 #endif
 781 #if defined(CONFIG_MISC_INIT_R)
 782         /* miscellaneous platform dependent initialisations */
 783         misc_init_r ();
 784 #endif
 785
 786          /* set up exceptions */
 787         interrupt_init ();
 788         /* enable exceptions */
 789         enable_interrupts ();
 790
 791         /* Perform network card initialisation if necessary */
 792 #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
 793         /* XXX: this needs to be moved to board init */
 794         if (getenv ("ethaddr")) {
 795                 uchar enetaddr[6];
 796                 eth_getenv_enetaddr("ethaddr", enetaddr);
 797                 smc_set_mac_addr(enetaddr);
 798         }
 799 #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
 800
 801         /* Initialize from environment */
 802         if ((s = getenv ("loadaddr")) != NULL) {
 803                 load_addr = simple_strtoul (s, NULL, 16);
 804         }
 805 #if defined(CONFIG_CMD_NET)
 806         if ((s = getenv ("bootfile")) != NULL) {
 807                 copy_filename (BootFile, s, sizeof (BootFile));
 808         }
 809 #endif
 810
 811 #ifdef BOARD_LATE_INIT
 812         board_late_init ();
 813 #endif
 814
 815 #ifdef CONFIG_BITBANGMII
 816         bb_miiphy_init();
 817 #endif
 818 #if defined(CONFIG_CMD_NET)
 819 #if defined(CONFIG_NET_MULTI)
 820         puts ("Net:   ");
 821 #endif
 822         eth_initialize(gd->bd);
 823 #if defined(CONFIG_RESET_PHY_R)
 824         debug ("Reset Ethernet PHY\n");
 825         reset_phy();
 826 #endif
 827 #endif
 828
 829 #ifdef CONFIG_POST
 830         post_run (NULL, POST_RAM | post_bootmode_get(0));
 831 #endif
 832
 833 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 834         /*
 835          * Export available size of memory for Linux,
 836          * taking into account the protected RAM at top of memory
 837          */
 838         {
 839                 ulong pram;
 840                 uchar memsz[32];
 841 #ifdef CONFIG_PRAM
 842                 char *s;
 843
 844                 if ((s = getenv ("pram")) != NULL) {
 845                         pram = simple_strtoul (s, NULL, 10);
 846                 } else {
 847                         pram = CONFIG_PRAM;
 848                 }
 849 #else
 850                 pram=0;
 851 #endif
 852 #ifdef CONFIG_LOGBUFFER
 853 #ifndef CONFIG_ALT_LB_ADDR
 854                 /* Also take the logbuffer into account (pram is in kB) */
 855                 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
 856 #endif
 857 #endif
 858                 sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
 859                 setenv ("mem", (char *)memsz);
 860         }
 861 #endif
 862
 863         /* main_loop() can return to retry autoboot, if so just run it again. */
 864         for (;;) {
 865                 main_loop ();
 866         }
 867
 868         /* NOTREACHED - no way out of command loop except booting */
 869 }
 870
 871 #endif /* defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
 872
 873 void hang (void)
 874 {
 875         puts ("### ERROR ### Please RESET the board ###\n");
 876         for (;;);
 877 }