common/board_f.c

   1 /*
   2  * Copyright (c) 2011 The Chromium OS Authors.
   3  * (C) Copyright 2002-2006
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  *
   6  * (C) Copyright 2002
   7  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
   8  * Marius Groeger <mgroeger@sysgo.de>
   9  *
  10  * SPDX-License-Identifier:     GPL-2.0+
  11  */
  12
  13 #include <common.h>
  14 #include <linux/compiler.h>
  15 #include <version.h>
  16 #include <environment.h>
  17 #include <dm.h>
  18 #include <fdtdec.h>
  19 #include <fs.h>
  20 #if defined(CONFIG_CMD_IDE)
  21 #include <ide.h>
  22 #endif
  23 #include <i2c.h>
  24 #include <initcall.h>
  25 #include <logbuff.h>
  26
  27 /* TODO: Can we move these into arch/ headers? */
  28 #ifdef CONFIG_8xx
  29 #include <mpc8xx.h>
  30 #endif
  31 #ifdef CONFIG_5xx
  32 #include <mpc5xx.h>
  33 #endif
  34 #ifdef CONFIG_MPC5xxx
  35 #include <mpc5xxx.h>
  36 #endif
  37 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
  38 #include <asm/mp.h>
  39 #endif
  40
  41 #include <os.h>
  42 #include <post.h>
  43 #include <spi.h>
  44 #include <status_led.h>
  45 #include <trace.h>
  46 #include <watchdog.h>
  47 #include <asm/errno.h>
  48 #include <asm/io.h>
  49 #include <asm/sections.h>
  50 #ifdef CONFIG_X86
  51 #include <asm/init_helpers.h>
  52 #include <asm/relocate.h>
  53 #endif
  54 #ifdef CONFIG_SANDBOX
  55 #include <asm/state.h>
  56 #endif
  57 #include <dm/root.h>
  58 #include <linux/compiler.h>
  59
  60 /*
  61  * Pointer to initial global data area
  62  *
  63  * Here we initialize it if needed.
  64  */
  65 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
  66 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
  67 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
  68 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
  69 #else
  70 DECLARE_GLOBAL_DATA_PTR;
  71 #endif
  72
  73 /*
  74  * sjg: IMO this code should be
  75  * refactored to a single function, something like:
  76  *
  77  * void led_set_state(enum led_colour_t colour, int on);
  78  */
  79 /************************************************************************
  80  * Coloured LED functionality
  81  ************************************************************************
  82  * May be supplied by boards if desired
  83  */
  84 __weak void coloured_LED_init(void) {}
  85 __weak void red_led_on(void) {}
  86 __weak void red_led_off(void) {}
  87 __weak void green_led_on(void) {}
  88 __weak void green_led_off(void) {}
  89 __weak void yellow_led_on(void) {}
  90 __weak void yellow_led_off(void) {}
  91 __weak void blue_led_on(void) {}
  92 __weak void blue_led_off(void) {}
  93
  94 /*
  95  * Why is gd allocated a register? Prior to reloc it might be better to
  96  * just pass it around to each function in this file?
  97  *
  98  * After reloc one could argue that it is hardly used and doesn't need
  99  * to be in a register. Or if it is it should perhaps hold pointers to all
 100  * global data for all modules, so that post-reloc we can avoid the massive
 101  * literal pool we get on ARM. Or perhaps just encourage each module to use
 102  * a structure...
 103  */
 104
 105 /*
 106  * Could the CONFIG_SPL_BUILD infection become a flag in gd?
 107  */
 108
 109 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
 110 static int init_func_watchdog_init(void)
 111 {
 112 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
 113         defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
 114         defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
 115         defined(CONFIG_IMX_WATCHDOG))
 116         hw_watchdog_init();
 117 # endif
 118         puts("       Watchdog enabled\n");
 119         WATCHDOG_RESET();
 120
 121         return 0;
 122 }
 123
 124 int init_func_watchdog_reset(void)
 125 {
 126         WATCHDOG_RESET();
 127
 128         return 0;
 129 }
 130 #endif /* CONFIG_WATCHDOG */
 131
 132 __weak void board_add_ram_info(int use_default)
 133 {
 134         /* please define platform specific board_add_ram_info() */
 135 }
 136
 137 static int init_baud_rate(void)
 138 {
 139         gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 140         return 0;
 141 }
 142
 143 static int display_text_info(void)
 144 {
 145 #ifndef CONFIG_SANDBOX
 146         ulong bss_start, bss_end, text_base;
 147
 148         bss_start = (ulong)&__bss_start;
 149         bss_end = (ulong)&__bss_end;
 150
 151 #ifdef CONFIG_SYS_TEXT_BASE
 152         text_base = CONFIG_SYS_TEXT_BASE;
 153 #else
 154         text_base = CONFIG_SYS_MONITOR_BASE;
 155 #endif
 156
 157         debug("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
 158                 text_base, bss_start, bss_end);
 159 #endif
 160
 161 #ifdef CONFIG_MODEM_SUPPORT
 162         debug("Modem Support enabled\n");
 163 #endif
 164 #ifdef CONFIG_USE_IRQ
 165         debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
 166         debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
 167 #endif
 168
 169         return 0;
 170 }
 171
 172 static int announce_dram_init(void)
 173 {
 174         puts("DRAM:  ");
 175         return 0;
 176 }
 177
 178 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
 179 static int init_func_ram(void)
 180 {
 181 #ifdef  CONFIG_BOARD_TYPES
 182         int board_type = gd->board_type;
 183 #else
 184         int board_type = 0;     /* use dummy arg */
 185 #endif
 186
 187         gd->ram_size = initdram(board_type);
 188
 189         if (gd->ram_size > 0)
 190                 return 0;
 191
 192         puts("*** failed ***\n");
 193         return 1;
 194 }
 195 #endif
 196
 197 static int show_dram_config(void)
 198 {
 199         unsigned long long size;
 200
 201 #ifdef CONFIG_NR_DRAM_BANKS
 202         int i;
 203
 204         debug("\nRAM Configuration:\n");
 205         for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 206                 size += gd->bd->bi_dram[i].size;
 207                 debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
 208 #ifdef DEBUG
 209                 print_size(gd->bd->bi_dram[i].size, "\n");
 210 #endif
 211         }
 212         debug("\nDRAM:  ");
 213 #else
 214         size = gd->ram_size;
 215 #endif
 216
 217         print_size(size, "");
 218         board_add_ram_info(0);
 219         putc('\n');
 220
 221         return 0;
 222 }
 223
 224 __weak void dram_init_banksize(void)
 225 {
 226 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
 227         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 228         gd->bd->bi_dram[0].size = get_effective_memsize();
 229 #endif
 230 }
 231
 232 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 233 static int init_func_i2c(void)
 234 {
 235         puts("I2C:   ");
 236 #ifdef CONFIG_SYS_I2C
 237         i2c_init_all();
 238 #else
 239         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 240 #endif
 241         puts("ready\n");
 242         return 0;
 243 }
 244 #endif
 245
 246 #if defined(CONFIG_HARD_SPI)
 247 static int init_func_spi(void)
 248 {
 249         puts("SPI:   ");
 250         spi_init();
 251         puts("ready\n");
 252         return 0;
 253 }
 254 #endif
 255
 256 __maybe_unused
 257 static int zero_global_data(void)
 258 {
 259         memset((void *)gd, '\0', sizeof(gd_t));
 260
 261         return 0;
 262 }
 263
 264 static int setup_mon_len(void)
 265 {
 266 #if defined(__ARM__) || defined(__MICROBLAZE__)
 267         gd->mon_len = (ulong)&__bss_end - (ulong)_start;
 268 #elif defined(CONFIG_SANDBOX)
 269         gd->mon_len = (ulong)&_end - (ulong)_init;
 270 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
 271         gd->mon_len = CONFIG_SYS_MONITOR_LEN;
 272 #else
 273         /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
 274         gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
 275 #endif
 276         return 0;
 277 }
 278
 279 __weak int arch_cpu_init(void)
 280 {
 281         return 0;
 282 }
 283
 284 #ifdef CONFIG_OF_HOSTFILE
 285
 286 static int read_fdt_from_file(void)
 287 {
 288         struct sandbox_state *state = state_get_current();
 289         const char *fname = state->fdt_fname;
 290         void *blob;
 291         loff_t size;
 292         int err;
 293         int fd;
 294
 295         blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
 296         if (!state->fdt_fname) {
 297                 err = fdt_create_empty_tree(blob, 256);
 298                 if (!err)
 299                         goto done;
 300                 printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
 301                 return -EINVAL;
 302         }
 303
 304         err = os_get_filesize(fname, &size);
 305         if (err < 0) {
 306                 printf("Failed to file FDT file '%s'\n", fname);
 307                 return err;
 308         }
 309         fd = os_open(fname, OS_O_RDONLY);
 310         if (fd < 0) {
 311                 printf("Failed to open FDT file '%s'\n", fname);
 312                 return -EACCES;
 313         }
 314         if (os_read(fd, blob, size) != size) {
 315                 os_close(fd);
 316                 return -EIO;
 317         }
 318         os_close(fd);
 319
 320 done:
 321         gd->fdt_blob = blob;
 322
 323         return 0;
 324 }
 325 #endif
 326
 327 #ifdef CONFIG_SANDBOX
 328 static int setup_ram_buf(void)
 329 {
 330         struct sandbox_state *state = state_get_current();
 331
 332         gd->arch.ram_buf = state->ram_buf;
 333         gd->ram_size = state->ram_size;
 334
 335         return 0;
 336 }
 337 #endif
 338
 339 static int setup_fdt(void)
 340 {
 341 #ifdef CONFIG_OF_CONTROL
 342 # ifdef CONFIG_OF_EMBED
 343         /* Get a pointer to the FDT */
 344         gd->fdt_blob = __dtb_dt_begin;
 345 # elif defined CONFIG_OF_SEPARATE
 346         /* FDT is at end of image */
 347         gd->fdt_blob = (ulong *)&_end;
 348 # elif defined(CONFIG_OF_HOSTFILE)
 349         if (read_fdt_from_file()) {
 350                 puts("Failed to read control FDT\n");
 351                 return -1;
 352         }
 353 # endif
 354         /* Allow the early environment to override the fdt address */
 355         gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
 356                                                 (uintptr_t)gd->fdt_blob);
 357 #endif
 358         return 0;
 359 }
 360
 361 /* Get the top of usable RAM */
 362 __weak ulong board_get_usable_ram_top(ulong total_size)
 363 {
 364 #ifdef CONFIG_SYS_SDRAM_BASE
 365         /*
 366          * Detect whether we have so much RAM it goes past the end of our
 367          * 32-bit address space. If so, clip the usable RAM so it doesn't.
 368          */
 369         if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
 370                 /*
 371                  * Will wrap back to top of 32-bit space when reservations
 372                  * are made.
 373                  */
 374                 return 0;
 375 #endif
 376         return gd->ram_top;
 377 }
 378
 379 static int setup_dest_addr(void)
 380 {
 381         debug("Monitor len: %08lX\n", gd->mon_len);
 382         /*
 383          * Ram is setup, size stored in gd !!
 384          */
 385         debug("Ram size: %08lX\n", (ulong)gd->ram_size);
 386 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
 387         /*
 388          * Subtract specified amount of memory to hide so that it won't
 389          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 390          * the Linux kernel should now get passed the now "corrected"
 391          * memory size and won't touch it either. This should work
 392          * for arch/ppc and arch/powerpc. Only Linux board ports in
 393          * arch/powerpc with bootwrapper support, that recalculate the
 394          * memory size from the SDRAM controller setup will have to
 395          * get fixed.
 396          */
 397         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 398 #endif
 399 #ifdef CONFIG_SYS_SDRAM_BASE
 400         gd->ram_top = CONFIG_SYS_SDRAM_BASE;
 401 #endif
 402         gd->ram_top += get_effective_memsize();
 403         gd->ram_top = board_get_usable_ram_top(gd->mon_len);
 404         gd->relocaddr = gd->ram_top;
 405         debug("Ram top: %08lX\n", (ulong)gd->ram_top);
 406 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 407         /*
 408          * We need to make sure the location we intend to put secondary core
 409          * boot code is reserved and not used by any part of u-boot
 410          */
 411         if (gd->relocaddr > determine_mp_bootpg(NULL)) {
 412                 gd->relocaddr = determine_mp_bootpg(NULL);
 413                 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
 414         }
 415 #endif
 416         return 0;
 417 }
 418
 419 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 420 static int reserve_logbuffer(void)
 421 {
 422         /* reserve kernel log buffer */
 423         gd->relocaddr -= LOGBUFF_RESERVE;
 424         debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
 425                 gd->relocaddr);
 426         return 0;
 427 }
 428 #endif
 429
 430 #ifdef CONFIG_PRAM
 431 /* reserve protected RAM */
 432 static int reserve_pram(void)
 433 {
 434         ulong reg;
 435
 436         reg = getenv_ulong("pram", 10, CONFIG_PRAM);
 437         gd->relocaddr -= (reg << 10);           /* size is in kB */
 438         debug("Reserving %ldk for protected RAM at %08lx\n", reg,
 439               gd->relocaddr);
 440         return 0;
 441 }
 442 #endif /* CONFIG_PRAM */
 443
 444 /* Round memory pointer down to next 4 kB limit */
 445 static int reserve_round_4k(void)
 446 {
 447         gd->relocaddr &= ~(4096 - 1);
 448         return 0;
 449 }
 450
 451 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 452                 defined(CONFIG_ARM)
 453 static int reserve_mmu(void)
 454 {
 455         /* reserve TLB table */
 456         gd->arch.tlb_size = PGTABLE_SIZE;
 457         gd->relocaddr -= gd->arch.tlb_size;
 458
 459         /* round down to next 64 kB limit */
 460         gd->relocaddr &= ~(0x10000 - 1);
 461
 462         gd->arch.tlb_addr = gd->relocaddr;
 463         debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
 464               gd->arch.tlb_addr + gd->arch.tlb_size);
 465         return 0;
 466 }
 467 #endif
 468
 469 #ifdef CONFIG_LCD
 470 static int reserve_lcd(void)
 471 {
 472 #ifdef CONFIG_FB_ADDR
 473         gd->fb_base = CONFIG_FB_ADDR;
 474 #else
 475         /* reserve memory for LCD display (always full pages) */
 476         gd->relocaddr = lcd_setmem(gd->relocaddr);
 477         gd->fb_base = gd->relocaddr;
 478 #endif /* CONFIG_FB_ADDR */
 479         return 0;
 480 }
 481 #endif /* CONFIG_LCD */
 482
 483 static int reserve_trace(void)
 484 {
 485 #ifdef CONFIG_TRACE
 486         gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
 487         gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
 488         debug("Reserving %dk for trace data at: %08lx\n",
 489               CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
 490 #endif
 491
 492         return 0;
 493 }
 494
 495 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 496                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
 497                 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
 498 static int reserve_video(void)
 499 {
 500         /* reserve memory for video display (always full pages) */
 501         gd->relocaddr = video_setmem(gd->relocaddr);
 502         gd->fb_base = gd->relocaddr;
 503
 504         return 0;
 505 }
 506 #endif
 507
 508 static int reserve_uboot(void)
 509 {
 510         /*
 511          * reserve memory for U-Boot code, data & bss
 512          * round down to next 4 kB limit
 513          */
 514         gd->relocaddr -= gd->mon_len;
 515         gd->relocaddr &= ~(4096 - 1);
 516 #ifdef CONFIG_E500
 517         /* round down to next 64 kB limit so that IVPR stays aligned */
 518         gd->relocaddr &= ~(65536 - 1);
 519 #endif
 520
 521         debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
 522               gd->relocaddr);
 523
 524         gd->start_addr_sp = gd->relocaddr;
 525
 526         return 0;
 527 }
 528
 529 #ifndef CONFIG_SPL_BUILD
 530 /* reserve memory for malloc() area */
 531 static int reserve_malloc(void)
 532 {
 533         gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
 534         debug("Reserving %dk for malloc() at: %08lx\n",
 535                         TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
 536         return 0;
 537 }
 538
 539 /* (permanently) allocate a Board Info struct */
 540 static int reserve_board(void)
 541 {
 542         if (!gd->bd) {
 543                 gd->start_addr_sp -= sizeof(bd_t);
 544                 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
 545                 memset(gd->bd, '\0', sizeof(bd_t));
 546                 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
 547                       sizeof(bd_t), gd->start_addr_sp);
 548         }
 549         return 0;
 550 }
 551 #endif
 552
 553 static int setup_machine(void)
 554 {
 555 #ifdef CONFIG_MACH_TYPE
 556         gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
 557 #endif
 558         return 0;
 559 }
 560
 561 static int reserve_global_data(void)
 562 {
 563         gd->start_addr_sp -= sizeof(gd_t);
 564         gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
 565         debug("Reserving %zu Bytes for Global Data at: %08lx\n",
 566                         sizeof(gd_t), gd->start_addr_sp);
 567         return 0;
 568 }
 569
 570 static int reserve_fdt(void)
 571 {
 572         /*
 573          * If the device tree is sitting immediate above our image then we
 574          * must relocate it. If it is embedded in the data section, then it
 575          * will be relocated with other data.
 576          */
 577         if (gd->fdt_blob) {
 578                 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
 579
 580                 gd->start_addr_sp -= gd->fdt_size;
 581                 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
 582                 debug("Reserving %lu Bytes for FDT at: %08lx\n",
 583                       gd->fdt_size, gd->start_addr_sp);
 584         }
 585
 586         return 0;
 587 }
 588
 589 int arch_reserve_stacks(void)
 590 {
 591         return 0;
 592 }
 593
 594 static int reserve_stacks(void)
 595 {
 596         /* make stack pointer 16-byte aligned */
 597         gd->start_addr_sp -= 16;
 598         gd->start_addr_sp &= ~0xf;
 599
 600         /*
 601          * let the architecture specific code tailor gd->start_addr_sp and
 602          * gd->irq_sp
 603          */
 604         return arch_reserve_stacks();
 605 }
 606
 607 static int display_new_sp(void)
 608 {
 609         debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
 610
 611         return 0;
 612 }
 613
 614 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
 615 static int setup_board_part1(void)
 616 {
 617         bd_t *bd = gd->bd;
 618
 619         /*
 620          * Save local variables to board info struct
 621          */
 622
 623         bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;        /* start of memory */
 624         bd->bi_memsize = gd->ram_size;                  /* size in bytes */
 625
 626 #ifdef CONFIG_SYS_SRAM_BASE
 627         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of SRAM */
 628         bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;         /* size  of SRAM */
 629 #endif
 630
 631 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
 632                 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 633         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 634 #endif
 635 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
 636         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 637 #endif
 638 #if defined(CONFIG_MPC83xx)
 639         bd->bi_immrbar = CONFIG_SYS_IMMR;
 640 #endif
 641
 642         return 0;
 643 }
 644
 645 static int setup_board_part2(void)
 646 {
 647         bd_t *bd = gd->bd;
 648
 649         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 650         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 651 #if defined(CONFIG_CPM2)
 652         bd->bi_cpmfreq = gd->arch.cpm_clk;
 653         bd->bi_brgfreq = gd->arch.brg_clk;
 654         bd->bi_sccfreq = gd->arch.scc_clk;
 655         bd->bi_vco = gd->arch.vco_out;
 656 #endif /* CONFIG_CPM2 */
 657 #if defined(CONFIG_MPC512X)
 658         bd->bi_ipsfreq = gd->arch.ips_clk;
 659 #endif /* CONFIG_MPC512X */
 660 #if defined(CONFIG_MPC5xxx)
 661         bd->bi_ipbfreq = gd->arch.ipb_clk;
 662         bd->bi_pcifreq = gd->pci_clk;
 663 #endif /* CONFIG_MPC5xxx */
 664 #if defined(CONFIG_M68K) && defined(CONFIG_PCI)
 665         bd->bi_pcifreq = gd->pci_clk;
 666 #endif
 667 #if defined(CONFIG_EXTRA_CLOCK)
 668         bd->bi_inpfreq = gd->arch.inp_clk;      /* input Freq in Hz */
 669         bd->bi_vcofreq = gd->arch.vco_clk;      /* vco Freq in Hz */
 670         bd->bi_flbfreq = gd->arch.flb_clk;      /* flexbus Freq in Hz */
 671 #endif
 672
 673         return 0;
 674 }
 675 #endif
 676
 677 #ifdef CONFIG_SYS_EXTBDINFO
 678 static int setup_board_extra(void)
 679 {
 680         bd_t *bd = gd->bd;
 681
 682         strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
 683         strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
 684                 sizeof(bd->bi_r_version));
 685
 686         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 687         bd->bi_plb_busfreq = gd->bus_clk;
 688 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 689                 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 690                 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 691         bd->bi_pci_busfreq = get_PCI_freq();
 692         bd->bi_opbfreq = get_OPB_freq();
 693 #elif defined(CONFIG_XILINX_405)
 694         bd->bi_pci_busfreq = get_PCI_freq();
 695 #endif
 696
 697         return 0;
 698 }
 699 #endif
 700
 701 #ifdef CONFIG_POST
 702 static int init_post(void)
 703 {
 704         post_bootmode_init();
 705         post_run(NULL, POST_ROM | post_bootmode_get(0));
 706
 707         return 0;
 708 }
 709 #endif
 710
 711 static int setup_dram_config(void)
 712 {
 713         /* Ram is board specific, so move it to board code ... */
 714         dram_init_banksize();
 715
 716         return 0;
 717 }
 718
 719 static int reloc_fdt(void)
 720 {
 721         if (gd->new_fdt) {
 722                 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
 723                 gd->fdt_blob = gd->new_fdt;
 724         }
 725
 726         return 0;
 727 }
 728
 729 static int setup_reloc(void)
 730 {
 731 #ifdef CONFIG_SYS_TEXT_BASE
 732         gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
 733 #ifdef CONFIG_M68K
 734         /*
 735          * On all ColdFire arch cpu, monitor code starts always
 736          * just after the default vector table location, so at 0x400
 737          */
 738         gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
 739 #endif
 740 #endif
 741         memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
 742
 743         debug("Relocation Offset is: %08lx\n", gd->reloc_off);
 744         debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
 745               gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
 746               gd->start_addr_sp);
 747
 748         return 0;
 749 }
 750
 751 /* ARM calls relocate_code from its crt0.S */
 752 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
 753
 754 static int jump_to_copy(void)
 755 {
 756         /*
 757          * x86 is special, but in a nice way. It uses a trampoline which
 758          * enables the dcache if possible.
 759          *
 760          * For now, other archs use relocate_code(), which is implemented
 761          * similarly for all archs. When we do generic relocation, hopefully
 762          * we can make all archs enable the dcache prior to relocation.
 763          */
 764 #ifdef CONFIG_X86
 765         /*
 766          * SDRAM and console are now initialised. The final stack can now
 767          * be setup in SDRAM. Code execution will continue in Flash, but
 768          * with the stack in SDRAM and Global Data in temporary memory
 769          * (CPU cache)
 770          */
 771         board_init_f_r_trampoline(gd->start_addr_sp);
 772 #else
 773         relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
 774 #endif
 775
 776         return 0;
 777 }
 778 #endif
 779
 780 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
 781 static int mark_bootstage(void)
 782 {
 783         bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
 784
 785         return 0;
 786 }
 787
 788 static int initf_malloc(void)
 789 {
 790 #ifdef CONFIG_SYS_MALLOC_F_LEN
 791         assert(gd->malloc_base);        /* Set up by crt0.S */
 792         gd->malloc_limit = gd->malloc_base + CONFIG_SYS_MALLOC_F_LEN;
 793         gd->malloc_ptr = 0;
 794 #endif
 795
 796         return 0;
 797 }
 798
 799 static int initf_dm(void)
 800 {
 801 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
 802         int ret;
 803
 804         ret = dm_init_and_scan(true);
 805         if (ret)
 806                 return ret;
 807 #endif
 808
 809         return 0;
 810 }
 811
 812 /* Architecture-specific memory reservation */
 813 __weak int reserve_arch(void)
 814 {
 815         return 0;
 816 }
 817
 818 static init_fnc_t init_sequence_f[] = {
 819 #ifdef CONFIG_SANDBOX
 820         setup_ram_buf,
 821 #endif
 822         setup_mon_len,
 823         setup_fdt,
 824 #ifdef CONFIG_TRACE
 825         trace_early_init,
 826 #endif
 827         initf_malloc,
 828 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 829         /* TODO: can this go into arch_cpu_init()? */
 830         probecpu,
 831 #endif
 832         arch_cpu_init,          /* basic arch cpu dependent setup */
 833         mark_bootstage,
 834 #ifdef CONFIG_OF_CONTROL
 835         fdtdec_check_fdt,
 836 #endif
 837         initf_dm,
 838 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 839         board_early_init_f,
 840 #endif
 841         /* TODO: can any of this go into arch_cpu_init()? */
 842 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 843         get_clocks,             /* get CPU and bus clocks (etc.) */
 844 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 845                 && !defined(CONFIG_TQM885D)
 846         adjust_sdram_tbs_8xx,
 847 #endif
 848         /* TODO: can we rename this to timer_init()? */
 849         init_timebase,
 850 #endif
 851 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
 852         timer_init,             /* initialize timer */
 853 #endif
 854 #ifdef CONFIG_SYS_ALLOC_DPRAM
 855 #if !defined(CONFIG_CPM2)
 856         dpram_init,
 857 #endif
 858 #endif
 859 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 860         board_postclk_init,
 861 #endif
 862 #ifdef CONFIG_FSL_ESDHC
 863         get_clocks,
 864 #endif
 865 #ifdef CONFIG_M68K
 866         get_clocks,
 867 #endif
 868         env_init,               /* initialize environment */
 869 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 870         /* get CPU and bus clocks according to the environment variable */
 871         get_clocks_866,
 872         /* adjust sdram refresh rate according to the new clock */
 873         sdram_adjust_866,
 874         init_timebase,
 875 #endif
 876         init_baud_rate,         /* initialze baudrate settings */
 877         serial_init,            /* serial communications setup */
 878         console_init_f,         /* stage 1 init of console */
 879 #ifdef CONFIG_SANDBOX
 880         sandbox_early_getopt_check,
 881 #endif
 882 #ifdef CONFIG_OF_CONTROL
 883         fdtdec_prepare_fdt,
 884 #endif
 885         display_options,        /* say that we are here */
 886         display_text_info,      /* show debugging info if required */
 887 #if defined(CONFIG_MPC8260)
 888         prt_8260_rsr,
 889         prt_8260_clks,
 890 #endif /* CONFIG_MPC8260 */
 891 #if defined(CONFIG_MPC83xx)
 892         prt_83xx_rsr,
 893 #endif
 894 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
 895         checkcpu,
 896 #endif
 897         print_cpuinfo,          /* display cpu info (and speed) */
 898 #if defined(CONFIG_MPC5xxx)
 899         prt_mpc5xxx_clks,
 900 #endif /* CONFIG_MPC5xxx */
 901 #if defined(CONFIG_DISPLAY_BOARDINFO)
 902         show_board_info,
 903 #endif
 904         INIT_FUNC_WATCHDOG_INIT
 905 #if defined(CONFIG_MISC_INIT_F)
 906         misc_init_f,
 907 #endif
 908         INIT_FUNC_WATCHDOG_RESET
 909 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 910         init_func_i2c,
 911 #endif
 912 #if defined(CONFIG_HARD_SPI)
 913         init_func_spi,
 914 #endif
 915         announce_dram_init,
 916         /* TODO: unify all these dram functions? */
 917 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
 918         dram_init,              /* configure available RAM banks */
 919 #endif
 920 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
 921         init_func_ram,
 922 #endif
 923 #ifdef CONFIG_POST
 924         post_init_f,
 925 #endif
 926         INIT_FUNC_WATCHDOG_RESET
 927 #if defined(CONFIG_SYS_DRAM_TEST)
 928         testdram,
 929 #endif /* CONFIG_SYS_DRAM_TEST */
 930         INIT_FUNC_WATCHDOG_RESET
 931
 932 #ifdef CONFIG_POST
 933         init_post,
 934 #endif
 935         INIT_FUNC_WATCHDOG_RESET
 936         /*
 937          * Now that we have DRAM mapped and working, we can
 938          * relocate the code and continue running from DRAM.
 939          *
 940          * Reserve memory at end of RAM for (top down in that order):
 941          *  - area that won't get touched by U-Boot and Linux (optional)
 942          *  - kernel log buffer
 943          *  - protected RAM
 944          *  - LCD framebuffer
 945          *  - monitor code
 946          *  - board info struct
 947          */
 948         setup_dest_addr,
 949 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
 950         /* Blackfin u-boot monitor should be on top of the ram */
 951         reserve_uboot,
 952 #endif
 953 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 954         reserve_logbuffer,
 955 #endif
 956 #ifdef CONFIG_PRAM
 957         reserve_pram,
 958 #endif
 959         reserve_round_4k,
 960 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 961                 defined(CONFIG_ARM)
 962         reserve_mmu,
 963 #endif
 964 #ifdef CONFIG_LCD
 965         reserve_lcd,
 966 #endif
 967         reserve_trace,
 968         /* TODO: Why the dependency on CONFIG_8xx? */
 969 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 970                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
 971                 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
 972         reserve_video,
 973 #endif
 974 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
 975         reserve_uboot,
 976 #endif
 977 #ifndef CONFIG_SPL_BUILD
 978         reserve_malloc,
 979         reserve_board,
 980 #endif
 981         setup_machine,
 982         reserve_global_data,
 983         reserve_fdt,
 984         reserve_arch,
 985         reserve_stacks,
 986         setup_dram_config,
 987         show_dram_config,
 988 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
 989         setup_board_part1,
 990         INIT_FUNC_WATCHDOG_RESET
 991         setup_board_part2,
 992 #endif
 993         display_new_sp,
 994 #ifdef CONFIG_SYS_EXTBDINFO
 995         setup_board_extra,
 996 #endif
 997         INIT_FUNC_WATCHDOG_RESET
 998         reloc_fdt,
 999         setup_reloc,
1000 #ifdef CONFIG_X86
1001         copy_uboot_to_ram,
1002         clear_bss,
1003         do_elf_reloc_fixups,
1004 #endif
1005 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1006         jump_to_copy,
1007 #endif
1008         NULL,
1009 };
1010
1011 void board_init_f(ulong boot_flags)
1012 {
1013 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1014         /*
1015          * For some archtectures, global data is initialized and used before
1016          * calling this function. The data should be preserved. For others,
1017          * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1018          * here to host global data until relocation.
1019          */
1020         gd_t data;
1021
1022         gd = &data;
1023
1024         /*
1025          * Clear global data before it is accessed at debug print
1026          * in initcall_run_list. Otherwise the debug print probably
1027          * get the wrong vaule of gd->have_console.
1028          */
1029         zero_global_data();
1030 #endif
1031
1032         gd->flags = boot_flags;
1033         gd->have_console = 0;
1034
1035         if (initcall_run_list(init_sequence_f))
1036                 hang();
1037
1038 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1039         /* NOTREACHED - jump_to_copy() does not return */
1040         hang();
1041 #endif
1042 }
1043
1044 #ifdef CONFIG_X86
1045 /*
1046  * For now this code is only used on x86.
1047  *
1048  * init_sequence_f_r is the list of init functions which are run when
1049  * U-Boot is executing from Flash with a semi-limited 'C' environment.
1050  * The following limitations must be considered when implementing an
1051  * '_f_r' function:
1052  *  - 'static' variables are read-only
1053  *  - Global Data (gd->xxx) is read/write
1054  *
1055  * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1056  * supported).  It _should_, if possible, copy global data to RAM and
1057  * initialise the CPU caches (to speed up the relocation process)
1058  *
1059  * NOTE: At present only x86 uses this route, but it is intended that
1060  * all archs will move to this when generic relocation is implemented.
1061  */
1062 static init_fnc_t init_sequence_f_r[] = {
1063         init_cache_f_r,
1064
1065         NULL,
1066 };
1067
1068 void board_init_f_r(void)
1069 {
1070         if (initcall_run_list(init_sequence_f_r))
1071                 hang();
1072
1073         /*
1074          * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1075          * Transfer execution from Flash to RAM by calculating the address
1076          * of the in-RAM copy of board_init_r() and calling it
1077          */
1078         (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
1079
1080         /* NOTREACHED - board_init_r() does not return */
1081         hang();
1082 }
1083 #endif /* CONFIG_X86 */
1084
1085 #ifndef CONFIG_X86
1086 ulong board_init_f_mem(ulong top)
1087 {
1088         /* Leave space for the stack we are running with now */
1089         top -= 0x40;
1090
1091         top -= sizeof(struct global_data);
1092         top = ALIGN(top, 16);
1093         gd = (struct global_data *)top;
1094         memset((void *)gd, '\0', sizeof(*gd));
1095
1096 #ifdef CONFIG_SYS_MALLOC_F_LEN
1097         top -= CONFIG_SYS_MALLOC_F_LEN;
1098         gd->malloc_base = top;
1099 #endif
1100
1101         return top;
1102 }
1103 #endif /* !CONFIG_X86 */