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))
 115         hw_watchdog_init();
 116 # endif
 117         puts("       Watchdog enabled\n");
 118         WATCHDOG_RESET();
 119
 120         return 0;
 121 }
 122
 123 int init_func_watchdog_reset(void)
 124 {
 125         WATCHDOG_RESET();
 126
 127         return 0;
 128 }
 129 #endif /* CONFIG_WATCHDOG */
 130
 131 __weak void board_add_ram_info(int use_default)
 132 {
 133         /* please define platform specific board_add_ram_info() */
 134 }
 135
 136 static int init_baud_rate(void)
 137 {
 138         gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 139         return 0;
 140 }
 141
 142 static int display_text_info(void)
 143 {
 144 #ifndef CONFIG_SANDBOX
 145         ulong bss_start, bss_end, text_base;
 146
 147         bss_start = (ulong)&__bss_start;
 148         bss_end = (ulong)&__bss_end;
 149
 150 #ifdef CONFIG_SYS_TEXT_BASE
 151         text_base = CONFIG_SYS_TEXT_BASE;
 152 #else
 153         text_base = CONFIG_SYS_MONITOR_BASE;
 154 #endif
 155
 156         debug("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
 157                 text_base, bss_start, bss_end);
 158 #endif
 159
 160 #ifdef CONFIG_MODEM_SUPPORT
 161         debug("Modem Support enabled\n");
 162 #endif
 163 #ifdef CONFIG_USE_IRQ
 164         debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
 165         debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
 166 #endif
 167
 168         return 0;
 169 }
 170
 171 static int announce_dram_init(void)
 172 {
 173         puts("DRAM:  ");
 174         return 0;
 175 }
 176
 177 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
 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
 186         gd->ram_size = initdram(board_type);
 187
 188         if (gd->ram_size > 0)
 189                 return 0;
 190
 191         puts("*** failed ***\n");
 192         return 1;
 193 }
 194 #endif
 195
 196 static int show_dram_config(void)
 197 {
 198         unsigned long long size;
 199
 200 #ifdef CONFIG_NR_DRAM_BANKS
 201         int i;
 202
 203         debug("\nRAM Configuration:\n");
 204         for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 205                 size += gd->bd->bi_dram[i].size;
 206                 debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
 207 #ifdef DEBUG
 208                 print_size(gd->bd->bi_dram[i].size, "\n");
 209 #endif
 210         }
 211         debug("\nDRAM:  ");
 212 #else
 213         size = gd->ram_size;
 214 #endif
 215
 216         print_size(size, "");
 217         board_add_ram_info(0);
 218         putc('\n');
 219
 220         return 0;
 221 }
 222
 223 __weak void dram_init_banksize(void)
 224 {
 225 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
 226         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 227         gd->bd->bi_dram[0].size = get_effective_memsize();
 228 #endif
 229 }
 230
 231 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 232 static int init_func_i2c(void)
 233 {
 234         puts("I2C:   ");
 235 #ifdef CONFIG_SYS_I2C
 236         i2c_init_all();
 237 #else
 238         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 239 #endif
 240         puts("ready\n");
 241         return 0;
 242 }
 243 #endif
 244
 245 #if defined(CONFIG_HARD_SPI)
 246 static int init_func_spi(void)
 247 {
 248         puts("SPI:   ");
 249         spi_init();
 250         puts("ready\n");
 251         return 0;
 252 }
 253 #endif
 254
 255 __maybe_unused
 256 static int zero_global_data(void)
 257 {
 258         memset((void *)gd, '\0', sizeof(gd_t));
 259
 260         return 0;
 261 }
 262
 263 static int setup_mon_len(void)
 264 {
 265 #ifdef __ARM__
 266         gd->mon_len = (ulong)&__bss_end - (ulong)_start;
 267 #elif defined(CONFIG_SANDBOX)
 268         gd->mon_len = (ulong)&_end - (ulong)_init;
 269 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
 270         gd->mon_len = CONFIG_SYS_MONITOR_LEN;
 271 #else
 272         /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
 273         gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
 274 #endif
 275         return 0;
 276 }
 277
 278 __weak int arch_cpu_init(void)
 279 {
 280         return 0;
 281 }
 282
 283 #ifdef CONFIG_OF_HOSTFILE
 284
 285 static int read_fdt_from_file(void)
 286 {
 287         struct sandbox_state *state = state_get_current();
 288         const char *fname = state->fdt_fname;
 289         void *blob;
 290         loff_t size;
 291         int err;
 292         int fd;
 293
 294         blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
 295         if (!state->fdt_fname) {
 296                 err = fdt_create_empty_tree(blob, 256);
 297                 if (!err)
 298                         goto done;
 299                 printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
 300                 return -EINVAL;
 301         }
 302
 303         err = os_get_filesize(fname, &size);
 304         if (err < 0) {
 305                 printf("Failed to file FDT file '%s'\n", fname);
 306                 return err;
 307         }
 308         fd = os_open(fname, OS_O_RDONLY);
 309         if (fd < 0) {
 310                 printf("Failed to open FDT file '%s'\n", fname);
 311                 return -EACCES;
 312         }
 313         if (os_read(fd, blob, size) != size) {
 314                 os_close(fd);
 315                 return -EIO;
 316         }
 317         os_close(fd);
 318
 319 done:
 320         gd->fdt_blob = blob;
 321
 322         return 0;
 323 }
 324 #endif
 325
 326 #ifdef CONFIG_SANDBOX
 327 static int setup_ram_buf(void)
 328 {
 329         struct sandbox_state *state = state_get_current();
 330
 331         gd->arch.ram_buf = state->ram_buf;
 332         gd->ram_size = state->ram_size;
 333
 334         return 0;
 335 }
 336 #endif
 337
 338 static int setup_fdt(void)
 339 {
 340 #ifdef CONFIG_OF_CONTROL
 341 # ifdef CONFIG_OF_EMBED
 342         /* Get a pointer to the FDT */
 343         gd->fdt_blob = __dtb_dt_begin;
 344 # elif defined CONFIG_OF_SEPARATE
 345         /* FDT is at end of image */
 346         gd->fdt_blob = (ulong *)&_end;
 347 # elif defined(CONFIG_OF_HOSTFILE)
 348         if (read_fdt_from_file()) {
 349                 puts("Failed to read control FDT\n");
 350                 return -1;
 351         }
 352 # endif
 353         /* Allow the early environment to override the fdt address */
 354         gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
 355                                                 (uintptr_t)gd->fdt_blob);
 356 #endif
 357         return 0;
 358 }
 359
 360 /* Get the top of usable RAM */
 361 __weak ulong board_get_usable_ram_top(ulong total_size)
 362 {
 363         return gd->ram_top;
 364 }
 365
 366 static int setup_dest_addr(void)
 367 {
 368         debug("Monitor len: %08lX\n", gd->mon_len);
 369         /*
 370          * Ram is setup, size stored in gd !!
 371          */
 372         debug("Ram size: %08lX\n", (ulong)gd->ram_size);
 373 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
 374         /*
 375          * Subtract specified amount of memory to hide so that it won't
 376          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 377          * the Linux kernel should now get passed the now "corrected"
 378          * memory size and won't touch it either. This should work
 379          * for arch/ppc and arch/powerpc. Only Linux board ports in
 380          * arch/powerpc with bootwrapper support, that recalculate the
 381          * memory size from the SDRAM controller setup will have to
 382          * get fixed.
 383          */
 384         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 385 #endif
 386 #ifdef CONFIG_SYS_SDRAM_BASE
 387         gd->ram_top = CONFIG_SYS_SDRAM_BASE;
 388 #endif
 389         gd->ram_top += get_effective_memsize();
 390         gd->ram_top = board_get_usable_ram_top(gd->mon_len);
 391         gd->relocaddr = gd->ram_top;
 392         debug("Ram top: %08lX\n", (ulong)gd->ram_top);
 393 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 394         /*
 395          * We need to make sure the location we intend to put secondary core
 396          * boot code is reserved and not used by any part of u-boot
 397          */
 398         if (gd->relocaddr > determine_mp_bootpg(NULL)) {
 399                 gd->relocaddr = determine_mp_bootpg(NULL);
 400                 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
 401         }
 402 #endif
 403         return 0;
 404 }
 405
 406 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 407 static int reserve_logbuffer(void)
 408 {
 409         /* reserve kernel log buffer */
 410         gd->relocaddr -= LOGBUFF_RESERVE;
 411         debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
 412                 gd->relocaddr);
 413         return 0;
 414 }
 415 #endif
 416
 417 #ifdef CONFIG_PRAM
 418 /* reserve protected RAM */
 419 static int reserve_pram(void)
 420 {
 421         ulong reg;
 422
 423         reg = getenv_ulong("pram", 10, CONFIG_PRAM);
 424         gd->relocaddr -= (reg << 10);           /* size is in kB */
 425         debug("Reserving %ldk for protected RAM at %08lx\n", reg,
 426               gd->relocaddr);
 427         return 0;
 428 }
 429 #endif /* CONFIG_PRAM */
 430
 431 /* Round memory pointer down to next 4 kB limit */
 432 static int reserve_round_4k(void)
 433 {
 434         gd->relocaddr &= ~(4096 - 1);
 435         return 0;
 436 }
 437
 438 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 439                 defined(CONFIG_ARM)
 440 static int reserve_mmu(void)
 441 {
 442         /* reserve TLB table */
 443         gd->arch.tlb_size = PGTABLE_SIZE;
 444         gd->relocaddr -= gd->arch.tlb_size;
 445
 446         /* round down to next 64 kB limit */
 447         gd->relocaddr &= ~(0x10000 - 1);
 448
 449         gd->arch.tlb_addr = gd->relocaddr;
 450         debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
 451               gd->arch.tlb_addr + gd->arch.tlb_size);
 452         return 0;
 453 }
 454 #endif
 455
 456 #ifdef CONFIG_LCD
 457 static int reserve_lcd(void)
 458 {
 459 #ifdef CONFIG_FB_ADDR
 460         gd->fb_base = CONFIG_FB_ADDR;
 461 #else
 462         /* reserve memory for LCD display (always full pages) */
 463         gd->relocaddr = lcd_setmem(gd->relocaddr);
 464         gd->fb_base = gd->relocaddr;
 465 #endif /* CONFIG_FB_ADDR */
 466         return 0;
 467 }
 468 #endif /* CONFIG_LCD */
 469
 470 static int reserve_trace(void)
 471 {
 472 #ifdef CONFIG_TRACE
 473         gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
 474         gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
 475         debug("Reserving %dk for trace data at: %08lx\n",
 476               CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
 477 #endif
 478
 479         return 0;
 480 }
 481
 482 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 483                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
 484                 !defined(CONFIG_BLACKFIN)
 485 static int reserve_video(void)
 486 {
 487         /* reserve memory for video display (always full pages) */
 488         gd->relocaddr = video_setmem(gd->relocaddr);
 489         gd->fb_base = gd->relocaddr;
 490
 491         return 0;
 492 }
 493 #endif
 494
 495 static int reserve_uboot(void)
 496 {
 497         /*
 498          * reserve memory for U-Boot code, data & bss
 499          * round down to next 4 kB limit
 500          */
 501         gd->relocaddr -= gd->mon_len;
 502         gd->relocaddr &= ~(4096 - 1);
 503 #ifdef CONFIG_E500
 504         /* round down to next 64 kB limit so that IVPR stays aligned */
 505         gd->relocaddr &= ~(65536 - 1);
 506 #endif
 507
 508         debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
 509               gd->relocaddr);
 510
 511         gd->start_addr_sp = gd->relocaddr;
 512
 513         return 0;
 514 }
 515
 516 #ifndef CONFIG_SPL_BUILD
 517 /* reserve memory for malloc() area */
 518 static int reserve_malloc(void)
 519 {
 520         gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
 521         debug("Reserving %dk for malloc() at: %08lx\n",
 522                         TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
 523         return 0;
 524 }
 525
 526 /* (permanently) allocate a Board Info struct */
 527 static int reserve_board(void)
 528 {
 529         if (!gd->bd) {
 530                 gd->start_addr_sp -= sizeof(bd_t);
 531                 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
 532                 memset(gd->bd, '\0', sizeof(bd_t));
 533                 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
 534                       sizeof(bd_t), gd->start_addr_sp);
 535         }
 536         return 0;
 537 }
 538 #endif
 539
 540 static int setup_machine(void)
 541 {
 542 #ifdef CONFIG_MACH_TYPE
 543         gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
 544 #endif
 545         return 0;
 546 }
 547
 548 static int reserve_global_data(void)
 549 {
 550         gd->start_addr_sp -= sizeof(gd_t);
 551         gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
 552         debug("Reserving %zu Bytes for Global Data at: %08lx\n",
 553                         sizeof(gd_t), gd->start_addr_sp);
 554         return 0;
 555 }
 556
 557 static int reserve_fdt(void)
 558 {
 559         /*
 560          * If the device tree is sitting immediate above our image then we
 561          * must relocate it. If it is embedded in the data section, then it
 562          * will be relocated with other data.
 563          */
 564         if (gd->fdt_blob) {
 565                 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
 566
 567                 gd->start_addr_sp -= gd->fdt_size;
 568                 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
 569                 debug("Reserving %lu Bytes for FDT at: %08lx\n",
 570                       gd->fdt_size, gd->start_addr_sp);
 571         }
 572
 573         return 0;
 574 }
 575
 576 static int reserve_stacks(void)
 577 {
 578 #ifdef CONFIG_SPL_BUILD
 579 # ifdef CONFIG_ARM
 580         gd->start_addr_sp -= 128;       /* leave 32 words for abort-stack */
 581         gd->irq_sp = gd->start_addr_sp;
 582 # endif
 583 #else
 584 # ifdef CONFIG_PPC
 585         ulong *s;
 586 # endif
 587
 588         /* setup stack pointer for exceptions */
 589         gd->start_addr_sp -= 16;
 590         gd->start_addr_sp &= ~0xf;
 591         gd->irq_sp = gd->start_addr_sp;
 592
 593         /*
 594          * Handle architecture-specific things here
 595          * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
 596          * to handle this and put in arch/xxx/lib/stack.c
 597          */
 598 # if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
 599 #  ifdef CONFIG_USE_IRQ
 600         gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
 601         debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
 602                 CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
 603
 604         /* 8-byte alignment for ARM ABI compliance */
 605         gd->start_addr_sp &= ~0x07;
 606 #  endif
 607         /* leave 3 words for abort-stack, plus 1 for alignment */
 608         gd->start_addr_sp -= 16;
 609 # elif defined(CONFIG_PPC)
 610         /* Clear initial stack frame */
 611         s = (ulong *) gd->start_addr_sp;
 612         *s = 0; /* Terminate back chain */
 613         *++s = 0; /* NULL return address */
 614 # endif /* Architecture specific code */
 615
 616         return 0;
 617 #endif
 618 }
 619
 620 static int display_new_sp(void)
 621 {
 622         debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
 623
 624         return 0;
 625 }
 626
 627 #ifdef CONFIG_PPC
 628 static int setup_board_part1(void)
 629 {
 630         bd_t *bd = gd->bd;
 631
 632         /*
 633          * Save local variables to board info struct
 634          */
 635
 636         bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;        /* start of memory */
 637         bd->bi_memsize = gd->ram_size;                  /* size in bytes */
 638
 639 #ifdef CONFIG_SYS_SRAM_BASE
 640         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of SRAM */
 641         bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;         /* size  of SRAM */
 642 #endif
 643
 644 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
 645                 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 646         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 647 #endif
 648 #if defined(CONFIG_MPC5xxx)
 649         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 650 #endif
 651 #if defined(CONFIG_MPC83xx)
 652         bd->bi_immrbar = CONFIG_SYS_IMMR;
 653 #endif
 654
 655         return 0;
 656 }
 657
 658 static int setup_board_part2(void)
 659 {
 660         bd_t *bd = gd->bd;
 661
 662         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 663         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 664 #if defined(CONFIG_CPM2)
 665         bd->bi_cpmfreq = gd->arch.cpm_clk;
 666         bd->bi_brgfreq = gd->arch.brg_clk;
 667         bd->bi_sccfreq = gd->arch.scc_clk;
 668         bd->bi_vco = gd->arch.vco_out;
 669 #endif /* CONFIG_CPM2 */
 670 #if defined(CONFIG_MPC512X)
 671         bd->bi_ipsfreq = gd->arch.ips_clk;
 672 #endif /* CONFIG_MPC512X */
 673 #if defined(CONFIG_MPC5xxx)
 674         bd->bi_ipbfreq = gd->arch.ipb_clk;
 675         bd->bi_pcifreq = gd->pci_clk;
 676 #endif /* CONFIG_MPC5xxx */
 677
 678         return 0;
 679 }
 680 #endif
 681
 682 #ifdef CONFIG_SYS_EXTBDINFO
 683 static int setup_board_extra(void)
 684 {
 685         bd_t *bd = gd->bd;
 686
 687         strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
 688         strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
 689                 sizeof(bd->bi_r_version));
 690
 691         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 692         bd->bi_plb_busfreq = gd->bus_clk;
 693 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 694                 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 695                 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 696         bd->bi_pci_busfreq = get_PCI_freq();
 697         bd->bi_opbfreq = get_OPB_freq();
 698 #elif defined(CONFIG_XILINX_405)
 699         bd->bi_pci_busfreq = get_PCI_freq();
 700 #endif
 701
 702         return 0;
 703 }
 704 #endif
 705
 706 #ifdef CONFIG_POST
 707 static int init_post(void)
 708 {
 709         post_bootmode_init();
 710         post_run(NULL, POST_ROM | post_bootmode_get(0));
 711
 712         return 0;
 713 }
 714 #endif
 715
 716 static int setup_dram_config(void)
 717 {
 718         /* Ram is board specific, so move it to board code ... */
 719         dram_init_banksize();
 720
 721         return 0;
 722 }
 723
 724 static int reloc_fdt(void)
 725 {
 726         if (gd->new_fdt) {
 727                 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
 728                 gd->fdt_blob = gd->new_fdt;
 729         }
 730
 731         return 0;
 732 }
 733
 734 static int setup_reloc(void)
 735 {
 736 #ifdef CONFIG_SYS_TEXT_BASE
 737         gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
 738 #endif
 739         memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
 740
 741         debug("Relocation Offset is: %08lx\n", gd->reloc_off);
 742         debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
 743               gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
 744               gd->start_addr_sp);
 745
 746         return 0;
 747 }
 748
 749 /* ARM calls relocate_code from its crt0.S */
 750 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
 751
 752 static int jump_to_copy(void)
 753 {
 754         /*
 755          * x86 is special, but in a nice way. It uses a trampoline which
 756          * enables the dcache if possible.
 757          *
 758          * For now, other archs use relocate_code(), which is implemented
 759          * similarly for all archs. When we do generic relocation, hopefully
 760          * we can make all archs enable the dcache prior to relocation.
 761          */
 762 #ifdef CONFIG_X86
 763         /*
 764          * SDRAM and console are now initialised. The final stack can now
 765          * be setup in SDRAM. Code execution will continue in Flash, but
 766          * with the stack in SDRAM and Global Data in temporary memory
 767          * (CPU cache)
 768          */
 769         board_init_f_r_trampoline(gd->start_addr_sp);
 770 #else
 771         relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
 772 #endif
 773
 774         return 0;
 775 }
 776 #endif
 777
 778 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
 779 static int mark_bootstage(void)
 780 {
 781         bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
 782
 783         return 0;
 784 }
 785
 786 static int initf_malloc(void)
 787 {
 788 #ifdef CONFIG_SYS_MALLOC_F_LEN
 789         assert(gd->malloc_base);        /* Set up by crt0.S */
 790         gd->malloc_limit = gd->malloc_base + CONFIG_SYS_MALLOC_F_LEN;
 791         gd->malloc_ptr = 0;
 792 #endif
 793
 794         return 0;
 795 }
 796
 797 static int initf_dm(void)
 798 {
 799 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
 800         int ret;
 801
 802         ret = dm_init_and_scan(true);
 803         if (ret)
 804                 return ret;
 805 #endif
 806
 807         return 0;
 808 }
 809
 810 /* Architecture-specific memory reservation */
 811 __weak int reserve_arch(void)
 812 {
 813         return 0;
 814 }
 815
 816 static init_fnc_t init_sequence_f[] = {
 817 #ifdef CONFIG_SANDBOX
 818         setup_ram_buf,
 819 #endif
 820         setup_mon_len,
 821         setup_fdt,
 822 #ifdef CONFIG_TRACE
 823         trace_early_init,
 824 #endif
 825         initf_malloc,
 826 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 827         /* TODO: can this go into arch_cpu_init()? */
 828         probecpu,
 829 #endif
 830         arch_cpu_init,          /* basic arch cpu dependent setup */
 831         mark_bootstage,
 832 #ifdef CONFIG_OF_CONTROL
 833         fdtdec_check_fdt,
 834 #endif
 835         initf_dm,
 836 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 837         board_early_init_f,
 838 #endif
 839         /* TODO: can any of this go into arch_cpu_init()? */
 840 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 841         get_clocks,             /* get CPU and bus clocks (etc.) */
 842 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 843                 && !defined(CONFIG_TQM885D)
 844         adjust_sdram_tbs_8xx,
 845 #endif
 846         /* TODO: can we rename this to timer_init()? */
 847         init_timebase,
 848 #endif
 849 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
 850         timer_init,             /* initialize timer */
 851 #endif
 852 #ifdef CONFIG_SYS_ALLOC_DPRAM
 853 #if !defined(CONFIG_CPM2)
 854         dpram_init,
 855 #endif
 856 #endif
 857 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 858         board_postclk_init,
 859 #endif
 860 #ifdef CONFIG_FSL_ESDHC
 861         get_clocks,
 862 #endif
 863         env_init,               /* initialize environment */
 864 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 865         /* get CPU and bus clocks according to the environment variable */
 866         get_clocks_866,
 867         /* adjust sdram refresh rate according to the new clock */
 868         sdram_adjust_866,
 869         init_timebase,
 870 #endif
 871         init_baud_rate,         /* initialze baudrate settings */
 872         serial_init,            /* serial communications setup */
 873         console_init_f,         /* stage 1 init of console */
 874 #ifdef CONFIG_SANDBOX
 875         sandbox_early_getopt_check,
 876 #endif
 877 #ifdef CONFIG_OF_CONTROL
 878         fdtdec_prepare_fdt,
 879 #endif
 880         display_options,        /* say that we are here */
 881         display_text_info,      /* show debugging info if required */
 882 #if defined(CONFIG_MPC8260)
 883         prt_8260_rsr,
 884         prt_8260_clks,
 885 #endif /* CONFIG_MPC8260 */
 886 #if defined(CONFIG_MPC83xx)
 887         prt_83xx_rsr,
 888 #endif
 889 #ifdef CONFIG_PPC
 890         checkcpu,
 891 #endif
 892         print_cpuinfo,          /* display cpu info (and speed) */
 893 #if defined(CONFIG_MPC5xxx)
 894         prt_mpc5xxx_clks,
 895 #endif /* CONFIG_MPC5xxx */
 896 #if defined(CONFIG_DISPLAY_BOARDINFO)
 897         checkboard,             /* display board info */
 898 #endif
 899         INIT_FUNC_WATCHDOG_INIT
 900 #if defined(CONFIG_MISC_INIT_F)
 901         misc_init_f,
 902 #endif
 903         INIT_FUNC_WATCHDOG_RESET
 904 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 905         init_func_i2c,
 906 #endif
 907 #if defined(CONFIG_HARD_SPI)
 908         init_func_spi,
 909 #endif
 910         announce_dram_init,
 911         /* TODO: unify all these dram functions? */
 912 #if defined(CONFIG_ARM) || defined(CONFIG_X86)
 913         dram_init,              /* configure available RAM banks */
 914 #endif
 915 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
 916         init_func_ram,
 917 #endif
 918 #ifdef CONFIG_POST
 919         post_init_f,
 920 #endif
 921         INIT_FUNC_WATCHDOG_RESET
 922 #if defined(CONFIG_SYS_DRAM_TEST)
 923         testdram,
 924 #endif /* CONFIG_SYS_DRAM_TEST */
 925         INIT_FUNC_WATCHDOG_RESET
 926
 927 #ifdef CONFIG_POST
 928         init_post,
 929 #endif
 930         INIT_FUNC_WATCHDOG_RESET
 931         /*
 932          * Now that we have DRAM mapped and working, we can
 933          * relocate the code and continue running from DRAM.
 934          *
 935          * Reserve memory at end of RAM for (top down in that order):
 936          *  - area that won't get touched by U-Boot and Linux (optional)
 937          *  - kernel log buffer
 938          *  - protected RAM
 939          *  - LCD framebuffer
 940          *  - monitor code
 941          *  - board info struct
 942          */
 943         setup_dest_addr,
 944 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
 945         /* Blackfin u-boot monitor should be on top of the ram */
 946         reserve_uboot,
 947 #endif
 948 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 949         reserve_logbuffer,
 950 #endif
 951 #ifdef CONFIG_PRAM
 952         reserve_pram,
 953 #endif
 954         reserve_round_4k,
 955 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 956                 defined(CONFIG_ARM)
 957         reserve_mmu,
 958 #endif
 959 #ifdef CONFIG_LCD
 960         reserve_lcd,
 961 #endif
 962         reserve_trace,
 963         /* TODO: Why the dependency on CONFIG_8xx? */
 964 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 965                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
 966                 !defined(CONFIG_BLACKFIN)
 967         reserve_video,
 968 #endif
 969 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
 970         reserve_uboot,
 971 #endif
 972 #ifndef CONFIG_SPL_BUILD
 973         reserve_malloc,
 974         reserve_board,
 975 #endif
 976         setup_machine,
 977         reserve_global_data,
 978         reserve_fdt,
 979         reserve_arch,
 980         reserve_stacks,
 981         setup_dram_config,
 982         show_dram_config,
 983 #ifdef CONFIG_PPC
 984         setup_board_part1,
 985         INIT_FUNC_WATCHDOG_RESET
 986         setup_board_part2,
 987 #endif
 988         display_new_sp,
 989 #ifdef CONFIG_SYS_EXTBDINFO
 990         setup_board_extra,
 991 #endif
 992         INIT_FUNC_WATCHDOG_RESET
 993         reloc_fdt,
 994         setup_reloc,
 995 #ifdef CONFIG_X86
 996         copy_uboot_to_ram,
 997         clear_bss,
 998         do_elf_reloc_fixups,
 999 #endif
1000 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1001         jump_to_copy,
1002 #endif
1003         NULL,
1004 };
1005
1006 void board_init_f(ulong boot_flags)
1007 {
1008 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1009         /*
1010          * For some archtectures, global data is initialized and used before
1011          * calling this function. The data should be preserved. For others,
1012          * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1013          * here to host global data until relocation.
1014          */
1015         gd_t data;
1016
1017         gd = &data;
1018
1019         /*
1020          * Clear global data before it is accessed at debug print
1021          * in initcall_run_list. Otherwise the debug print probably
1022          * get the wrong vaule of gd->have_console.
1023          */
1024         zero_global_data();
1025 #endif
1026
1027         gd->flags = boot_flags;
1028         gd->have_console = 0;
1029
1030         if (initcall_run_list(init_sequence_f))
1031                 hang();
1032
1033 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1034         /* NOTREACHED - jump_to_copy() does not return */
1035         hang();
1036 #endif
1037 }
1038
1039 #ifdef CONFIG_X86
1040 /*
1041  * For now this code is only used on x86.
1042  *
1043  * init_sequence_f_r is the list of init functions which are run when
1044  * U-Boot is executing from Flash with a semi-limited 'C' environment.
1045  * The following limitations must be considered when implementing an
1046  * '_f_r' function:
1047  *  - 'static' variables are read-only
1048  *  - Global Data (gd->xxx) is read/write
1049  *
1050  * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1051  * supported).  It _should_, if possible, copy global data to RAM and
1052  * initialise the CPU caches (to speed up the relocation process)
1053  *
1054  * NOTE: At present only x86 uses this route, but it is intended that
1055  * all archs will move to this when generic relocation is implemented.
1056  */
1057 static init_fnc_t init_sequence_f_r[] = {
1058         init_cache_f_r,
1059
1060         NULL,
1061 };
1062
1063 void board_init_f_r(void)
1064 {
1065         if (initcall_run_list(init_sequence_f_r))
1066                 hang();
1067
1068         /*
1069          * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1070          * Transfer execution from Flash to RAM by calculating the address
1071          * of the in-RAM copy of board_init_r() and calling it
1072          */
1073         (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
1074
1075         /* NOTREACHED - board_init_r() does not return */
1076         hang();
1077 }
1078 #endif /* CONFIG_X86 */