arch/powerpc/lib/board.c

   1 /*
   2  * (C) Copyright 2000-2011
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <watchdog.h>
  10 #include <command.h>
  11 #include <malloc.h>
  12 #include <stdio_dev.h>
  13 #ifdef CONFIG_8xx
  14 #include <mpc8xx.h>
  15 #endif
  16 #ifdef CONFIG_5xx
  17 #include <mpc5xx.h>
  18 #endif
  19 #ifdef CONFIG_MPC5xxx
  20 #include <mpc5xxx.h>
  21 #endif
  22 #if defined(CONFIG_CMD_IDE)
  23 #include <ide.h>
  24 #endif
  25 #if defined(CONFIG_CMD_SCSI)
  26 #include <scsi.h>
  27 #endif
  28 #if defined(CONFIG_CMD_KGDB)
  29 #include <kgdb.h>
  30 #endif
  31 #ifdef CONFIG_STATUS_LED
  32 #include <status_led.h>
  33 #endif
  34 #include <net.h>
  35 #ifdef CONFIG_GENERIC_MMC
  36 #include <mmc.h>
  37 #endif
  38 #include <serial.h>
  39 #ifdef CONFIG_SYS_ALLOC_DPRAM
  40 #if !defined(CONFIG_CPM2)
  41 #include <commproc.h>
  42 #endif
  43 #endif
  44 #include <version.h>
  45 #if defined(CONFIG_BAB7xx)
  46 #include <w83c553f.h>
  47 #endif
  48 #include <dtt.h>
  49 #if defined(CONFIG_POST)
  50 #include <post.h>
  51 #endif
  52 #if defined(CONFIG_LOGBUFFER)
  53 #include <logbuff.h>
  54 #endif
  55 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
  56 #include <asm/cache.h>
  57 #endif
  58 #ifdef CONFIG_PS2KBD
  59 #include <keyboard.h>
  60 #endif
  61
  62 #ifdef CONFIG_ADDR_MAP
  63 #include <asm/mmu.h>
  64 #endif
  65
  66 #ifdef CONFIG_MP
  67 #include <asm/mp.h>
  68 #endif
  69
  70 #ifdef CONFIG_BITBANGMII
  71 #include <miiphy.h>
  72 #endif
  73
  74 #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
  75 extern int update_flash_size(int flash_size);
  76 #endif
  77
  78 #if defined(CONFIG_SC3)
  79 extern void sc3_read_eeprom(void);
  80 #endif
  81
  82 #if defined(CONFIG_CMD_DOC)
  83 void doc_init(void);
  84 #endif
  85 #if defined(CONFIG_HARD_I2C) || \
  86     defined(CONFIG_SOFT_I2C)
  87 #include <i2c.h>
  88 #endif
  89 #include <spi.h>
  90 #include <nand.h>
  91
  92 static char *failed = "*** failed ***\n";
  93
  94 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
  95 extern flash_info_t flash_info[];
  96 #endif
  97
  98 #if defined(CONFIG_START_IDE)
  99 extern int board_start_ide(void);
 100 #endif
 101 #include <environment.h>
 102
 103 DECLARE_GLOBAL_DATA_PTR;
 104
 105 #if !defined(CONFIG_SYS_MEM_TOP_HIDE)
 106 #define CONFIG_SYS_MEM_TOP_HIDE 0
 107 #endif
 108
 109 extern ulong __init_end;
 110 extern ulong __bss_end;
 111 ulong monitor_flash_len;
 112
 113 #if defined(CONFIG_CMD_BEDBUG)
 114 #include <bedbug/type.h>
 115 #endif
 116
 117 /*
 118  * Utilities
 119  */
 120
 121 /*
 122  * All attempts to come up with a "common" initialization sequence
 123  * that works for all boards and architectures failed: some of the
 124  * requirements are just _too_ different. To get rid of the resulting
 125  * mess of board dependend #ifdef'ed code we now make the whole
 126  * initialization sequence configurable to the user.
 127  *
 128  * The requirements for any new initalization function is simple: it
 129  * receives a pointer to the "global data" structure as it's only
 130  * argument, and returns an integer return code, where 0 means
 131  * "continue" and != 0 means "fatal error, hang the system".
 132  */
 133 typedef int (init_fnc_t)(void);
 134
 135 /*
 136  * Init Utilities
 137  *
 138  * Some of this code should be moved into the core functions,
 139  * but let's get it working (again) first...
 140  */
 141
 142 static int init_baudrate(void)
 143 {
 144         gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 145         return 0;
 146 }
 147
 148 /***********************************************************************/
 149
 150 static void __board_add_ram_info(int use_default)
 151 {
 152         /* please define platform specific board_add_ram_info() */
 153 }
 154
 155 void board_add_ram_info(int)
 156         __attribute__ ((weak, alias("__board_add_ram_info")));
 157
 158 static int __board_flash_wp_on(void)
 159 {
 160         /*
 161          * Most flashes can't be detected when write protection is enabled,
 162          * so provide a way to let U-Boot gracefully ignore write protected
 163          * devices.
 164          */
 165         return 0;
 166 }
 167
 168 int board_flash_wp_on(void)
 169         __attribute__ ((weak, alias("__board_flash_wp_on")));
 170
 171 static void __cpu_secondary_init_r(void)
 172 {
 173 }
 174
 175 void cpu_secondary_init_r(void)
 176         __attribute__ ((weak, alias("__cpu_secondary_init_r")));
 177
 178 static int init_func_ram(void)
 179 {
 180 #ifdef  CONFIG_BOARD_TYPES
 181         int board_type = gd->board_type;
 182 #else
 183         int board_type = 0;     /* use dummy arg */
 184 #endif
 185         puts("DRAM:  ");
 186
 187         gd->ram_size = initdram(board_type);
 188
 189         if (gd->ram_size > 0) {
 190                 print_size(gd->ram_size, "");
 191                 board_add_ram_info(0);
 192                 putc('\n');
 193                 return 0;
 194         }
 195         puts(failed);
 196         return 1;
 197 }
 198
 199 /***********************************************************************/
 200
 201 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 202 static int init_func_i2c(void)
 203 {
 204         puts("I2C:   ");
 205         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 206         puts("ready\n");
 207         return 0;
 208 }
 209 #endif
 210
 211 #if defined(CONFIG_HARD_SPI)
 212 static int init_func_spi(void)
 213 {
 214         puts("SPI:   ");
 215         spi_init();
 216         puts("ready\n");
 217         return 0;
 218 }
 219 #endif
 220
 221 /***********************************************************************/
 222
 223 #if defined(CONFIG_WATCHDOG)
 224 int init_func_watchdog_init(void)
 225 {
 226         puts("       Watchdog enabled\n");
 227         WATCHDOG_RESET();
 228         return 0;
 229 }
 230
 231 int init_func_watchdog_reset(void)
 232 {
 233         WATCHDOG_RESET();
 234         return 0;
 235 }
 236 #endif /* CONFIG_WATCHDOG */
 237
 238 /*
 239  * Initialization sequence
 240  */
 241
 242 static init_fnc_t *init_sequence[] = {
 243 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 244         probecpu,
 245 #endif
 246 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 247         board_early_init_f,
 248 #endif
 249 #if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 250         get_clocks,             /* get CPU and bus clocks (etc.) */
 251 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 252     && !defined(CONFIG_TQM885D)
 253         adjust_sdram_tbs_8xx,
 254 #endif
 255         init_timebase,
 256 #endif
 257 #ifdef CONFIG_SYS_ALLOC_DPRAM
 258 #if !defined(CONFIG_CPM2)
 259         dpram_init,
 260 #endif
 261 #endif
 262 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 263         board_postclk_init,
 264 #endif
 265         env_init,
 266 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 267         /* get CPU and bus clocks according to the environment variable */
 268         get_clocks_866,
 269         /* adjust sdram refresh rate according to the new clock */
 270         sdram_adjust_866,
 271         init_timebase,
 272 #endif
 273         init_baudrate,
 274         serial_init,
 275         console_init_f,
 276         display_options,
 277 #if defined(CONFIG_8260)
 278         prt_8260_rsr,
 279         prt_8260_clks,
 280 #endif /* CONFIG_8260 */
 281 #if defined(CONFIG_MPC83xx)
 282         prt_83xx_rsr,
 283 #endif
 284         checkcpu,
 285 #if defined(CONFIG_MPC5xxx)
 286         prt_mpc5xxx_clks,
 287 #endif /* CONFIG_MPC5xxx */
 288         checkboard,
 289         INIT_FUNC_WATCHDOG_INIT
 290 #if defined(CONFIG_MISC_INIT_F)
 291         misc_init_f,
 292 #endif
 293         INIT_FUNC_WATCHDOG_RESET
 294 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 295         init_func_i2c,
 296 #endif
 297 #if defined(CONFIG_HARD_SPI)
 298         init_func_spi,
 299 #endif
 300 #ifdef CONFIG_POST
 301         post_init_f,
 302 #endif
 303         INIT_FUNC_WATCHDOG_RESET
 304         init_func_ram,
 305 #if defined(CONFIG_SYS_DRAM_TEST)
 306         testdram,
 307 #endif /* CONFIG_SYS_DRAM_TEST */
 308         INIT_FUNC_WATCHDOG_RESET
 309         NULL,   /* Terminate this list */
 310 };
 311
 312 ulong get_effective_memsize(void)
 313 {
 314 #ifndef CONFIG_VERY_BIG_RAM
 315         return gd->ram_size;
 316 #else
 317         /* limit stack to what we can reasonable map */
 318         return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
 319                 CONFIG_MAX_MEM_MAPPED : gd->ram_size);
 320 #endif
 321 }
 322
 323 static int __fixup_cpu(void)
 324 {
 325         return 0;
 326 }
 327
 328 int fixup_cpu(void) __attribute__((weak, alias("__fixup_cpu")));
 329
 330 /*
 331  * This is the first part of the initialization sequence that is
 332  * implemented in C, but still running from ROM.
 333  *
 334  * The main purpose is to provide a (serial) console interface as
 335  * soon as possible (so we can see any error messages), and to
 336  * initialize the RAM so that we can relocate the monitor code to
 337  * RAM.
 338  *
 339  * Be aware of the restrictions: global data is read-only, BSS is not
 340  * initialized, and stack space is limited to a few kB.
 341  */
 342
 343 #ifdef CONFIG_LOGBUFFER
 344 unsigned long logbuffer_base(void)
 345 {
 346         return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
 347 }
 348 #endif
 349
 350 void board_init_f(ulong bootflag)
 351 {
 352         bd_t *bd;
 353         ulong len, addr, addr_sp;
 354         ulong *s;
 355         gd_t *id;
 356         init_fnc_t **init_fnc_ptr;
 357
 358 #ifdef CONFIG_PRAM
 359         ulong reg;
 360 #endif
 361
 362         /* Pointer is writable since we allocated a register for it */
 363         gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
 364         /* compiler optimization barrier needed for GCC >= 3.4 */
 365         __asm__ __volatile__("":::"memory");
 366
 367 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
 368     !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
 369     !defined(CONFIG_MPC86xx)
 370         /* Clear initial global data */
 371         memset((void *) gd, 0, sizeof(gd_t));
 372 #endif
 373
 374         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr)
 375                 if ((*init_fnc_ptr) () != 0)
 376                         hang();
 377
 378 #ifdef CONFIG_POST
 379         post_bootmode_init();
 380         post_run(NULL, POST_ROM | post_bootmode_get(NULL));
 381 #endif
 382
 383         WATCHDOG_RESET();
 384
 385         /*
 386          * Now that we have DRAM mapped and working, we can
 387          * relocate the code and continue running from DRAM.
 388          *
 389          * Reserve memory at end of RAM for (top down in that order):
 390          *  - area that won't get touched by U-Boot and Linux (optional)
 391          *  - kernel log buffer
 392          *  - protected RAM
 393          *  - LCD framebuffer
 394          *  - monitor code
 395          *  - board info struct
 396          */
 397         len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
 398
 399         /*
 400          * Subtract specified amount of memory to hide so that it won't
 401          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 402          * the Linux kernel should now get passed the now "corrected"
 403          * memory size and won't touch it either. This should work
 404          * for arch/ppc and arch/powerpc. Only Linux board ports in
 405          * arch/powerpc with bootwrapper support, that recalculate the
 406          * memory size from the SDRAM controller setup will have to
 407          * get fixed.
 408          */
 409         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 410
 411         addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
 412
 413 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 414         /*
 415          * We need to make sure the location we intend to put secondary core
 416          * boot code is reserved and not used by any part of u-boot
 417          */
 418         if (addr > determine_mp_bootpg(NULL)) {
 419                 addr = determine_mp_bootpg(NULL);
 420                 debug("Reserving MP boot page to %08lx\n", addr);
 421         }
 422 #endif
 423
 424 #ifdef CONFIG_LOGBUFFER
 425 #ifndef CONFIG_ALT_LB_ADDR
 426         /* reserve kernel log buffer */
 427         addr -= (LOGBUFF_RESERVE);
 428         debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
 429               addr);
 430 #endif
 431 #endif
 432
 433 #ifdef CONFIG_PRAM
 434         /*
 435          * reserve protected RAM
 436          */
 437         reg = getenv_ulong("pram", 10, CONFIG_PRAM);
 438         addr -= (reg << 10);    /* size is in kB */
 439         debug("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
 440 #endif /* CONFIG_PRAM */
 441
 442         /* round down to next 4 kB limit */
 443         addr &= ~(4096 - 1);
 444         debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
 445
 446 #ifdef CONFIG_LCD
 447 #ifdef CONFIG_FB_ADDR
 448         gd->fb_base = CONFIG_FB_ADDR;
 449 #else
 450         /* reserve memory for LCD display (always full pages) */
 451         addr = lcd_setmem(addr);
 452         gd->fb_base = addr;
 453 #endif /* CONFIG_FB_ADDR */
 454 #endif /* CONFIG_LCD */
 455
 456 #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
 457         /* reserve memory for video display (always full pages) */
 458         addr = video_setmem(addr);
 459         gd->fb_base = addr;
 460 #endif /* CONFIG_VIDEO  */
 461
 462         /*
 463          * reserve memory for U-Boot code, data & bss
 464          * round down to next 4 kB limit
 465          */
 466         addr -= len;
 467         addr &= ~(4096 - 1);
 468 #ifdef CONFIG_E500
 469         /* round down to next 64 kB limit so that IVPR stays aligned */
 470         addr &= ~(65536 - 1);
 471 #endif
 472
 473         debug("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
 474
 475         /*
 476          * reserve memory for malloc() arena
 477          */
 478         addr_sp = addr - TOTAL_MALLOC_LEN;
 479         debug("Reserving %dk for malloc() at: %08lx\n",
 480               TOTAL_MALLOC_LEN >> 10, addr_sp);
 481
 482         /*
 483          * (permanently) allocate a Board Info struct
 484          * and a permanent copy of the "global" data
 485          */
 486         addr_sp -= sizeof(bd_t);
 487         bd = (bd_t *) addr_sp;
 488         memset(bd, 0, sizeof(bd_t));
 489         gd->bd = bd;
 490         debug("Reserving %zu Bytes for Board Info at: %08lx\n",
 491               sizeof(bd_t), addr_sp);
 492         addr_sp -= sizeof(gd_t);
 493         id = (gd_t *) addr_sp;
 494         debug("Reserving %zu Bytes for Global Data at: %08lx\n",
 495               sizeof(gd_t), addr_sp);
 496
 497         /*
 498          * Finally, we set up a new (bigger) stack.
 499          *
 500          * Leave some safety gap for SP, force alignment on 16 byte boundary
 501          * Clear initial stack frame
 502          */
 503         addr_sp -= 16;
 504         addr_sp &= ~0xF;
 505         s = (ulong *) addr_sp;
 506         *s = 0; /* Terminate back chain */
 507         *++s = 0; /* NULL return address */
 508         debug("Stack Pointer at: %08lx\n", addr_sp);
 509
 510         /*
 511          * Save local variables to board info struct
 512          */
 513
 514         bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;        /* start of memory */
 515         bd->bi_memsize = gd->ram_size;                  /* size in bytes */
 516
 517 #ifdef CONFIG_SYS_SRAM_BASE
 518         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of SRAM */
 519         bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;         /* size  of SRAM */
 520 #endif
 521
 522 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
 523     defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 524         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 525 #endif
 526 #if defined(CONFIG_MPC5xxx)
 527         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 528 #endif
 529 #if defined(CONFIG_MPC83xx)
 530         bd->bi_immrbar = CONFIG_SYS_IMMR;
 531 #endif
 532
 533         WATCHDOG_RESET();
 534         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 535         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 536 #if defined(CONFIG_CPM2)
 537         bd->bi_cpmfreq = gd->arch.cpm_clk;
 538         bd->bi_brgfreq = gd->arch.brg_clk;
 539         bd->bi_sccfreq = gd->arch.scc_clk;
 540         bd->bi_vco = gd->arch.vco_out;
 541 #endif /* CONFIG_CPM2 */
 542 #if defined(CONFIG_MPC512X)
 543         bd->bi_ipsfreq = gd->arch.ips_clk;
 544 #endif /* CONFIG_MPC512X */
 545 #if defined(CONFIG_MPC5xxx)
 546         bd->bi_ipbfreq = gd->arch.ipb_clk;
 547         bd->bi_pcifreq = gd->pci_clk;
 548 #endif /* CONFIG_MPC5xxx */
 549         bd->bi_baudrate = gd->baudrate; /* Console Baudrate     */
 550
 551 #ifdef CONFIG_SYS_EXTBDINFO
 552         strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
 553         strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
 554                 sizeof(bd->bi_r_version));
 555
 556         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 557         bd->bi_plb_busfreq = gd->bus_clk;
 558 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 559     defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 560     defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 561         bd->bi_pci_busfreq = get_PCI_freq();
 562         bd->bi_opbfreq = get_OPB_freq();
 563 #elif defined(CONFIG_XILINX_405)
 564         bd->bi_pci_busfreq = get_PCI_freq();
 565 #endif
 566 #endif
 567
 568         debug("New Stack Pointer is: %08lx\n", addr_sp);
 569
 570         WATCHDOG_RESET();
 571
 572         gd->relocaddr = addr;   /* Store relocation addr, useful for debug */
 573
 574         memcpy(id, (void *) gd, sizeof(gd_t));
 575
 576         relocate_code(addr_sp, id, addr);
 577
 578         /* NOTREACHED - relocate_code() does not return */
 579 }
 580
 581 /*
 582  * This is the next part if the initialization sequence: we are now
 583  * running from RAM and have a "normal" C environment, i. e. global
 584  * data can be written, BSS has been cleared, the stack size in not
 585  * that critical any more, etc.
 586  */
 587 void board_init_r(gd_t *id, ulong dest_addr)
 588 {
 589         bd_t *bd;
 590         ulong malloc_start;
 591
 592 #ifndef CONFIG_SYS_NO_FLASH
 593         ulong flash_size;
 594 #endif
 595
 596         gd = id;                /* initialize RAM version of global data */
 597         bd = gd->bd;
 598
 599         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 600
 601         /* The Malloc area is immediately below the monitor copy in DRAM */
 602         malloc_start = dest_addr - TOTAL_MALLOC_LEN;
 603
 604 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 605         /*
 606          * The gd->arch.cpu pointer is set to an address in flash before
 607          * relocation.  We need to update it to point to the same CPU entry
 608          * in RAM.
 609          */
 610         gd->arch.cpu += dest_addr - CONFIG_SYS_MONITOR_BASE;
 611
 612         /*
 613          * If we didn't know the cpu mask & # cores, we can save them of
 614          * now rather than 'computing' them constantly
 615          */
 616         fixup_cpu();
 617 #endif
 618
 619 #ifdef CONFIG_SYS_EXTRA_ENV_RELOC
 620         /*
 621          * Some systems need to relocate the env_addr pointer early because the
 622          * location it points to will get invalidated before env_relocate is
 623          * called.  One example is on systems that might use a L2 or L3 cache
 624          * in SRAM mode and initialize that cache from SRAM mode back to being
 625          * a cache in cpu_init_r.
 626          */
 627         gd->env_addr += dest_addr - CONFIG_SYS_MONITOR_BASE;
 628 #endif
 629
 630         serial_initialize();
 631
 632         debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
 633
 634         WATCHDOG_RESET();
 635
 636         /*
 637          * Setup trap handlers
 638          */
 639         trap_init(dest_addr);
 640
 641 #ifdef CONFIG_ADDR_MAP
 642         init_addr_map();
 643 #endif
 644
 645 #if defined(CONFIG_BOARD_EARLY_INIT_R)
 646         board_early_init_r();
 647 #endif
 648
 649         monitor_flash_len = (ulong)&__init_end - dest_addr;
 650
 651         WATCHDOG_RESET();
 652
 653 #ifdef CONFIG_LOGBUFFER
 654         logbuff_init_ptrs();
 655 #endif
 656 #ifdef CONFIG_POST
 657         post_output_backlog();
 658 #endif
 659
 660         WATCHDOG_RESET();
 661
 662 #if defined(CONFIG_SYS_DELAYED_ICACHE)
 663         icache_enable();        /* it's time to enable the instruction cache */
 664 #endif
 665
 666 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
 667         unlock_ram_in_cache();  /* it's time to unlock D-cache in e500 */
 668 #endif
 669
 670 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
 671         /*
 672          * Do early PCI configuration _before_ the flash gets initialised,
 673          * because PCU ressources are crucial for flash access on some boards.
 674          */
 675         pci_init();
 676 #endif
 677 #if defined(CONFIG_WINBOND_83C553)
 678         /*
 679          * Initialise the ISA bridge
 680          */
 681         initialise_w83c553f();
 682 #endif
 683
 684         asm("sync ; isync");
 685
 686         mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
 687
 688 #if !defined(CONFIG_SYS_NO_FLASH)
 689         puts("Flash: ");
 690
 691         if (board_flash_wp_on()) {
 692                 printf("Uninitialized - Write Protect On\n");
 693                 /* Since WP is on, we can't find real size.  Set to 0 */
 694                 flash_size = 0;
 695         } else if ((flash_size = flash_init()) > 0) {
 696 #ifdef CONFIG_SYS_FLASH_CHECKSUM
 697                 print_size(flash_size, "");
 698                 /*
 699                  * Compute and print flash CRC if flashchecksum is set to 'y'
 700                  *
 701                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 702                  */
 703                 if (getenv_yesno("flashchecksum") == 1) {
 704                         printf("  CRC: %08X",
 705                                crc32(0,
 706                                      (const unsigned char *)
 707                                      CONFIG_SYS_FLASH_BASE, flash_size)
 708                                 );
 709                 }
 710                 putc('\n');
 711 #else  /* !CONFIG_SYS_FLASH_CHECKSUM */
 712                 print_size(flash_size, "\n");
 713 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
 714         } else {
 715                 puts(failed);
 716                 hang();
 717         }
 718
 719         /* update start of FLASH memory    */
 720         bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
 721         /* size of FLASH memory (final value) */
 722         bd->bi_flashsize = flash_size;
 723
 724 #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
 725         /* Make a update of the Memctrl. */
 726         update_flash_size(flash_size);
 727 #endif
 728
 729
 730 #if defined(CONFIG_OXC) || defined(CONFIG_RMU)
 731         /* flash mapped at end of memory map */
 732         bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
 733 #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
 734         bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
 735 #endif
 736 #endif /* !CONFIG_SYS_NO_FLASH */
 737
 738         WATCHDOG_RESET();
 739
 740         /* initialize higher level parts of CPU like time base and timers */
 741         cpu_init_r();
 742
 743         WATCHDOG_RESET();
 744
 745 #ifdef CONFIG_SPI
 746 #if !defined(CONFIG_ENV_IS_IN_EEPROM)
 747         spi_init_f();
 748 #endif
 749         spi_init_r();
 750 #endif
 751
 752 #if defined(CONFIG_CMD_NAND)
 753         WATCHDOG_RESET();
 754         puts("NAND:  ");
 755         nand_init();            /* go init the NAND */
 756 #endif
 757
 758 #ifdef CONFIG_GENERIC_MMC
 759 /*
 760  * MMC initialization is called before relocating env.
 761  * Thus It is required that operations like pin multiplexer
 762  * be put in board_init.
 763  */
 764         WATCHDOG_RESET();
 765         puts("MMC:  ");
 766         mmc_initialize(bd);
 767 #endif
 768
 769         /* relocate environment function pointers etc. */
 770         env_relocate();
 771
 772         /*
 773          * after non-volatile devices & environment is setup and cpu code have
 774          * another round to deal with any initialization that might require
 775          * full access to the environment or loading of some image (firmware)
 776          * from a non-volatile device
 777          */
 778         cpu_secondary_init_r();
 779
 780         /*
 781          * Fill in missing fields of bd_info.
 782          * We do this here, where we have "normal" access to the
 783          * environment; we used to do this still running from ROM,
 784          * where had to use getenv_f(), which can be pretty slow when
 785          * the environment is in EEPROM.
 786          */
 787
 788 #if defined(CONFIG_SYS_EXTBDINFO)
 789 #if defined(CONFIG_405GP) || defined(CONFIG_405EP)
 790 #if defined(CONFIG_I2CFAST)
 791         /*
 792          * set bi_iic_fast for linux taking environment variable
 793          * "i2cfast" into account
 794          */
 795         {
 796                 if (getenv_yesno("i2cfast") == 1) {
 797                         bd->bi_iic_fast[0] = 1;
 798                         bd->bi_iic_fast[1] = 1;
 799                 }
 800         }
 801 #endif /* CONFIG_I2CFAST */
 802 #endif /* CONFIG_405GP, CONFIG_405EP */
 803 #endif /* CONFIG_SYS_EXTBDINFO */
 804
 805 #if defined(CONFIG_SC3)
 806         sc3_read_eeprom();
 807 #endif
 808
 809 #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
 810         mac_read_from_eeprom();
 811 #endif
 812
 813 #ifdef  CONFIG_HERMES
 814         if ((gd->board_type >> 16) == 2)
 815                 bd->bi_ethspeed = gd->board_type & 0xFFFF;
 816         else
 817                 bd->bi_ethspeed = 0xFFFF;
 818 #endif
 819
 820 #ifdef CONFIG_CMD_NET
 821         /* kept around for legacy kernels only ... ignore the next section */
 822         eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
 823 #ifdef CONFIG_HAS_ETH1
 824         eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
 825 #endif
 826 #ifdef CONFIG_HAS_ETH2
 827         eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
 828 #endif
 829 #ifdef CONFIG_HAS_ETH3
 830         eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
 831 #endif
 832 #ifdef CONFIG_HAS_ETH4
 833         eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
 834 #endif
 835 #ifdef CONFIG_HAS_ETH5
 836         eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
 837 #endif
 838 #endif /* CONFIG_CMD_NET */
 839
 840         WATCHDOG_RESET();
 841
 842 #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
 843         /*
 844          * Do pci configuration
 845          */
 846         pci_init();
 847 #endif
 848
 849 /** leave this here (after malloc(), environment and PCI are working) **/
 850         /* Initialize stdio devices */
 851         stdio_init();
 852
 853         /* Initialize the jump table for applications */
 854         jumptable_init();
 855
 856 #if defined(CONFIG_API)
 857         /* Initialize API */
 858         api_init();
 859 #endif
 860
 861         /* Initialize the console (after the relocation and devices init) */
 862         console_init_r();
 863
 864 #if defined(CONFIG_MISC_INIT_R)
 865         /* miscellaneous platform dependent initialisations */
 866         misc_init_r();
 867 #endif
 868
 869 #ifdef  CONFIG_HERMES
 870         if (bd->bi_ethspeed != 0xFFFF)
 871                 hermes_start_lxt980((int) bd->bi_ethspeed);
 872 #endif
 873
 874 #if defined(CONFIG_CMD_KGDB)
 875         WATCHDOG_RESET();
 876         puts("KGDB:  ");
 877         kgdb_init();
 878 #endif
 879
 880         debug("U-Boot relocated to %08lx\n", dest_addr);
 881
 882         /*
 883          * Enable Interrupts
 884          */
 885         interrupt_init();
 886
 887 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
 888         status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
 889 #endif
 890
 891         udelay(20);
 892
 893         /* Initialize from environment */
 894         load_addr = getenv_ulong("loadaddr", 16, load_addr);
 895
 896         WATCHDOG_RESET();
 897
 898 #if defined(CONFIG_CMD_SCSI)
 899         WATCHDOG_RESET();
 900         puts("SCSI:  ");
 901         scsi_init();
 902 #endif
 903
 904 #if defined(CONFIG_CMD_DOC)
 905         WATCHDOG_RESET();
 906         puts("DOC:   ");
 907         doc_init();
 908 #endif
 909
 910 #ifdef CONFIG_BITBANGMII
 911         bb_miiphy_init();
 912 #endif
 913 #if defined(CONFIG_CMD_NET)
 914         WATCHDOG_RESET();
 915         puts("Net:   ");
 916         eth_initialize(bd);
 917 #endif
 918
 919 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
 920         WATCHDOG_RESET();
 921         debug("Reset Ethernet PHY\n");
 922         reset_phy();
 923 #endif
 924
 925 #ifdef CONFIG_POST
 926         post_run(NULL, POST_RAM | post_bootmode_get(0));
 927 #endif
 928
 929 #if defined(CONFIG_CMD_PCMCIA) \
 930     && !defined(CONFIG_CMD_IDE)
 931         WATCHDOG_RESET();
 932         puts("PCMCIA:");
 933         pcmcia_init();
 934 #endif
 935
 936 #if defined(CONFIG_CMD_IDE)
 937         WATCHDOG_RESET();
 938 #ifdef  CONFIG_IDE_8xx_PCCARD
 939         puts("PCMCIA:");
 940 #else
 941         puts("IDE:   ");
 942 #endif
 943 #if defined(CONFIG_START_IDE)
 944         if (board_start_ide())
 945                 ide_init();
 946 #else
 947         ide_init();
 948 #endif
 949 #endif
 950
 951 #ifdef CONFIG_LAST_STAGE_INIT
 952         WATCHDOG_RESET();
 953         /*
 954          * Some parts can be only initialized if all others (like
 955          * Interrupts) are up and running (i.e. the PC-style ISA
 956          * keyboard).
 957          */
 958         last_stage_init();
 959 #endif
 960
 961 #if defined(CONFIG_CMD_BEDBUG)
 962         WATCHDOG_RESET();
 963         bedbug_init();
 964 #endif
 965
 966 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 967         /*
 968          * Export available size of memory for Linux,
 969          * taking into account the protected RAM at top of memory
 970          */
 971         {
 972                 ulong pram = 0;
 973                 char memsz[32];
 974
 975 #ifdef CONFIG_PRAM
 976                 pram = getenv_ulong("pram", 10, CONFIG_PRAM);
 977 #endif
 978 #ifdef CONFIG_LOGBUFFER
 979 #ifndef CONFIG_ALT_LB_ADDR
 980                 /* Also take the logbuffer into account (pram is in kB) */
 981                 pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
 982 #endif
 983 #endif
 984                 sprintf(memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
 985                 setenv("mem", memsz);
 986         }
 987 #endif
 988
 989 #ifdef CONFIG_PS2KBD
 990         puts("PS/2:  ");
 991         kbd_init();
 992 #endif
 993
 994 #ifdef CONFIG_MODEM_SUPPORT
 995         {
 996                 extern int do_mdm_init;
 997
 998                 do_mdm_init = gd->do_mdm_init;
 999         }
1000 #endif
1001
1002         /* Initialization complete - start the monitor */
1003
1004         /* main_loop() can return to retry autoboot, if so just run it again. */
1005         for (;;) {
1006                 WATCHDOG_RESET();
1007                 main_loop();
1008         }
1009
1010         /* NOTREACHED - no way out of command loop except booting */
1011 }
1012
1013 #if 0   /* We could use plain global data, but the resulting code is bigger */
1014 /*
1015  * Pointer to initial global data area
1016  *
1017  * Here we initialize it.
1018  */
1019 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
1020 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
1021 DECLARE_GLOBAL_DATA_PTR =
1022         (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
1023 #endif /* 0 */
1024
1025 /************************************************************************/