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_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 void __board_add_ram_info(int use_default)
 132 {
 133         /* please define platform specific board_add_ram_info() */
 134 }
 135
 136 void board_add_ram_info(int)
 137         __attribute__ ((weak, alias("__board_add_ram_info")));
 138
 139 static int init_baud_rate(void)
 140 {
 141         gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 142         return 0;
 143 }
 144
 145 static int display_text_info(void)
 146 {
 147 #ifndef CONFIG_SANDBOX
 148         ulong bss_start, bss_end;
 149
 150         bss_start = (ulong)&__bss_start;
 151         bss_end = (ulong)&__bss_end;
 152
 153         debug("U-Boot code: %08X -> %08lX  BSS: -> %08lX\n",
 154 #ifdef CONFIG_SYS_TEXT_BASE
 155               CONFIG_SYS_TEXT_BASE, bss_start, bss_end);
 156 #else
 157               CONFIG_SYS_MONITOR_BASE, bss_start, bss_end);
 158 #endif
 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)
 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 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 void dram_init_banksize(void)
 233         __attribute__((weak, alias("__dram_init_banksize")));
 234
 235 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 236 static int init_func_i2c(void)
 237 {
 238         puts("I2C:   ");
 239 #ifdef CONFIG_SYS_I2C
 240         i2c_init_all();
 241 #else
 242         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 243 #endif
 244         puts("ready\n");
 245         return 0;
 246 }
 247 #endif
 248
 249 #if defined(CONFIG_HARD_SPI)
 250 static int init_func_spi(void)
 251 {
 252         puts("SPI:   ");
 253         spi_init();
 254         puts("ready\n");
 255         return 0;
 256 }
 257 #endif
 258
 259 __maybe_unused
 260 static int zero_global_data(void)
 261 {
 262         memset((void *)gd, '\0', sizeof(gd_t));
 263
 264         return 0;
 265 }
 266
 267 static int setup_mon_len(void)
 268 {
 269 #ifdef __ARM__
 270         gd->mon_len = (ulong)&__bss_end - (ulong)_start;
 271 #elif defined(CONFIG_SANDBOX)
 272         gd->mon_len = (ulong)&_end - (ulong)_init;
 273 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
 274         gd->mon_len = CONFIG_SYS_MONITOR_LEN;
 275 #else
 276         /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
 277         gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
 278 #endif
 279         return 0;
 280 }
 281
 282 __weak int arch_cpu_init(void)
 283 {
 284         return 0;
 285 }
 286
 287 #ifdef CONFIG_OF_HOSTFILE
 288
 289 static int read_fdt_from_file(void)
 290 {
 291         struct sandbox_state *state = state_get_current();
 292         const char *fname = state->fdt_fname;
 293         void *blob;
 294         ssize_t size;
 295         int err;
 296         int fd;
 297
 298         blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
 299         if (!state->fdt_fname) {
 300                 err = fdt_create_empty_tree(blob, 256);
 301                 if (!err)
 302                         goto done;
 303                 printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
 304                 return -EINVAL;
 305         }
 306
 307         size = os_get_filesize(fname);
 308         if (size < 0) {
 309                 printf("Failed to file FDT file '%s'\n", fname);
 310                 return -ENOENT;
 311         }
 312         fd = os_open(fname, OS_O_RDONLY);
 313         if (fd < 0) {
 314                 printf("Failed to open FDT file '%s'\n", fname);
 315                 return -EACCES;
 316         }
 317         if (os_read(fd, blob, size) != size) {
 318                 os_close(fd);
 319                 return -EIO;
 320         }
 321         os_close(fd);
 322
 323 done:
 324         gd->fdt_blob = blob;
 325
 326         return 0;
 327 }
 328 #endif
 329
 330 #ifdef CONFIG_SANDBOX
 331 static int setup_ram_buf(void)
 332 {
 333         struct sandbox_state *state = state_get_current();
 334
 335         gd->arch.ram_buf = state->ram_buf;
 336         gd->ram_size = state->ram_size;
 337
 338         return 0;
 339 }
 340 #endif
 341
 342 static int setup_fdt(void)
 343 {
 344 #ifdef CONFIG_OF_EMBED
 345         /* Get a pointer to the FDT */
 346         gd->fdt_blob = __dtb_dt_begin;
 347 #elif defined CONFIG_OF_SEPARATE
 348         /* FDT is at end of image */
 349         gd->fdt_blob = (ulong *)&_end;
 350 #elif defined(CONFIG_OF_HOSTFILE)
 351         if (read_fdt_from_file()) {
 352                 puts("Failed to read control FDT\n");
 353                 return -1;
 354         }
 355 #endif
 356         /* Allow the early environment to override the fdt address */
 357         gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
 358                                                 (uintptr_t)gd->fdt_blob);
 359         return 0;
 360 }
 361
 362 /* Get the top of usable RAM */
 363 __weak ulong board_get_usable_ram_top(ulong total_size)
 364 {
 365         return gd->ram_top;
 366 }
 367
 368 static int setup_dest_addr(void)
 369 {
 370         debug("Monitor len: %08lX\n", gd->mon_len);
 371         /*
 372          * Ram is setup, size stored in gd !!
 373          */
 374         debug("Ram size: %08lX\n", (ulong)gd->ram_size);
 375 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
 376         /*
 377          * Subtract specified amount of memory to hide so that it won't
 378          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 379          * the Linux kernel should now get passed the now "corrected"
 380          * memory size and won't touch it either. This should work
 381          * for arch/ppc and arch/powerpc. Only Linux board ports in
 382          * arch/powerpc with bootwrapper support, that recalculate the
 383          * memory size from the SDRAM controller setup will have to
 384          * get fixed.
 385          */
 386         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 387 #endif
 388 #ifdef CONFIG_SYS_SDRAM_BASE
 389         gd->ram_top = CONFIG_SYS_SDRAM_BASE;
 390 #endif
 391         gd->ram_top += get_effective_memsize();
 392         gd->ram_top = board_get_usable_ram_top(gd->mon_len);
 393         gd->relocaddr = gd->ram_top;
 394         debug("Ram top: %08lX\n", (ulong)gd->ram_top);
 395 #if (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 396         /*
 397          * We need to make sure the location we intend to put secondary core
 398          * boot code is reserved and not used by any part of u-boot
 399          */
 400         if (gd->relocaddr > determine_mp_bootpg(NULL)) {
 401                 gd->relocaddr = determine_mp_bootpg(NULL);
 402                 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
 403         }
 404 #endif
 405         return 0;
 406 }
 407
 408 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 409 static int reserve_logbuffer(void)
 410 {
 411         /* reserve kernel log buffer */
 412         gd->relocaddr -= LOGBUFF_RESERVE;
 413         debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
 414                 gd->relocaddr);
 415         return 0;
 416 }
 417 #endif
 418
 419 #ifdef CONFIG_PRAM
 420 /* reserve protected RAM */
 421 static int reserve_pram(void)
 422 {
 423         ulong reg;
 424
 425         reg = getenv_ulong("pram", 10, CONFIG_PRAM);
 426         gd->relocaddr -= (reg << 10);           /* size is in kB */
 427         debug("Reserving %ldk for protected RAM at %08lx\n", reg,
 428               gd->relocaddr);
 429         return 0;
 430 }
 431 #endif /* CONFIG_PRAM */
 432
 433 /* Round memory pointer down to next 4 kB limit */
 434 static int reserve_round_4k(void)
 435 {
 436         gd->relocaddr &= ~(4096 - 1);
 437         return 0;
 438 }
 439
 440 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 441                 defined(CONFIG_ARM)
 442 static int reserve_mmu(void)
 443 {
 444         /* reserve TLB table */
 445         gd->arch.tlb_size = PGTABLE_SIZE;
 446         gd->relocaddr -= gd->arch.tlb_size;
 447
 448         /* round down to next 64 kB limit */
 449         gd->relocaddr &= ~(0x10000 - 1);
 450
 451         gd->arch.tlb_addr = gd->relocaddr;
 452         debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
 453               gd->arch.tlb_addr + gd->arch.tlb_size);
 454         return 0;
 455 }
 456 #endif
 457
 458 #ifdef CONFIG_LCD
 459 static int reserve_lcd(void)
 460 {
 461 #ifdef CONFIG_FB_ADDR
 462         gd->fb_base = CONFIG_FB_ADDR;
 463 #else
 464         /* reserve memory for LCD display (always full pages) */
 465         gd->relocaddr = lcd_setmem(gd->relocaddr);
 466         gd->fb_base = gd->relocaddr;
 467 #endif /* CONFIG_FB_ADDR */
 468         return 0;
 469 }
 470 #endif /* CONFIG_LCD */
 471
 472 static int reserve_trace(void)
 473 {
 474 #ifdef CONFIG_TRACE
 475         gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
 476         gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
 477         debug("Reserving %dk for trace data at: %08lx\n",
 478               CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
 479 #endif
 480
 481         return 0;
 482 }
 483
 484 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 485                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
 486                 !defined(CONFIG_BLACKFIN)
 487 static int reserve_video(void)
 488 {
 489         /* reserve memory for video display (always full pages) */
 490         gd->relocaddr = video_setmem(gd->relocaddr);
 491         gd->fb_base = gd->relocaddr;
 492
 493         return 0;
 494 }
 495 #endif
 496
 497 static int reserve_uboot(void)
 498 {
 499         /*
 500          * reserve memory for U-Boot code, data & bss
 501          * round down to next 4 kB limit
 502          */
 503         gd->relocaddr -= gd->mon_len;
 504         gd->relocaddr &= ~(4096 - 1);
 505 #ifdef CONFIG_E500
 506         /* round down to next 64 kB limit so that IVPR stays aligned */
 507         gd->relocaddr &= ~(65536 - 1);
 508 #endif
 509
 510         debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
 511               gd->relocaddr);
 512
 513         gd->start_addr_sp = gd->relocaddr;
 514
 515         return 0;
 516 }
 517
 518 #ifndef CONFIG_SPL_BUILD
 519 /* reserve memory for malloc() area */
 520 static int reserve_malloc(void)
 521 {
 522         gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
 523         debug("Reserving %dk for malloc() at: %08lx\n",
 524                         TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
 525         return 0;
 526 }
 527
 528 /* (permanently) allocate a Board Info struct */
 529 static int reserve_board(void)
 530 {
 531         if (!gd->bd) {
 532                 gd->start_addr_sp -= sizeof(bd_t);
 533                 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
 534                 memset(gd->bd, '\0', sizeof(bd_t));
 535                 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
 536                       sizeof(bd_t), gd->start_addr_sp);
 537         }
 538         return 0;
 539 }
 540 #endif
 541
 542 static int setup_machine(void)
 543 {
 544 #ifdef CONFIG_MACH_TYPE
 545         gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
 546 #endif
 547         return 0;
 548 }
 549
 550 static int reserve_global_data(void)
 551 {
 552         gd->start_addr_sp -= sizeof(gd_t);
 553         gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
 554         debug("Reserving %zu Bytes for Global Data at: %08lx\n",
 555                         sizeof(gd_t), gd->start_addr_sp);
 556         return 0;
 557 }
 558
 559 static int reserve_fdt(void)
 560 {
 561         /*
 562          * If the device tree is sitting immediate above our image then we
 563          * must relocate it. If it is embedded in the data section, then it
 564          * will be relocated with other data.
 565          */
 566         if (gd->fdt_blob) {
 567                 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
 568
 569                 gd->start_addr_sp -= gd->fdt_size;
 570                 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
 571                 debug("Reserving %lu Bytes for FDT at: %08lx\n",
 572                       gd->fdt_size, gd->start_addr_sp);
 573         }
 574
 575         return 0;
 576 }
 577
 578 static int reserve_stacks(void)
 579 {
 580 #ifdef CONFIG_SPL_BUILD
 581 # ifdef CONFIG_ARM
 582         gd->start_addr_sp -= 128;       /* leave 32 words for abort-stack */
 583         gd->irq_sp = gd->start_addr_sp;
 584 # endif
 585 #else
 586 # ifdef CONFIG_PPC
 587         ulong *s;
 588 # endif
 589
 590         /* setup stack pointer for exceptions */
 591         gd->start_addr_sp -= 16;
 592         gd->start_addr_sp &= ~0xf;
 593         gd->irq_sp = gd->start_addr_sp;
 594
 595         /*
 596          * Handle architecture-specific things here
 597          * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
 598          * to handle this and put in arch/xxx/lib/stack.c
 599          */
 600 # if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
 601 #  ifdef CONFIG_USE_IRQ
 602         gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
 603         debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
 604                 CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
 605
 606         /* 8-byte alignment for ARM ABI compliance */
 607         gd->start_addr_sp &= ~0x07;
 608 #  endif
 609         /* leave 3 words for abort-stack, plus 1 for alignment */
 610         gd->start_addr_sp -= 16;
 611 # elif defined(CONFIG_PPC)
 612         /* Clear initial stack frame */
 613         s = (ulong *) gd->start_addr_sp;
 614         *s = 0; /* Terminate back chain */
 615         *++s = 0; /* NULL return address */
 616 # endif /* Architecture specific code */
 617
 618         return 0;
 619 #endif
 620 }
 621
 622 static int display_new_sp(void)
 623 {
 624         debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
 625
 626         return 0;
 627 }
 628
 629 #ifdef CONFIG_PPC
 630 static int setup_board_part1(void)
 631 {
 632         bd_t *bd = gd->bd;
 633
 634         /*
 635          * Save local variables to board info struct
 636          */
 637
 638         bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;        /* start of memory */
 639         bd->bi_memsize = gd->ram_size;                  /* size in bytes */
 640
 641 #ifdef CONFIG_SYS_SRAM_BASE
 642         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of SRAM */
 643         bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;         /* size  of SRAM */
 644 #endif
 645
 646 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
 647                 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 648         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 649 #endif
 650 #if defined(CONFIG_MPC5xxx)
 651         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 652 #endif
 653 #if defined(CONFIG_MPC83xx)
 654         bd->bi_immrbar = CONFIG_SYS_IMMR;
 655 #endif
 656
 657         return 0;
 658 }
 659
 660 static int setup_board_part2(void)
 661 {
 662         bd_t *bd = gd->bd;
 663
 664         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 665         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 666 #if defined(CONFIG_CPM2)
 667         bd->bi_cpmfreq = gd->arch.cpm_clk;
 668         bd->bi_brgfreq = gd->arch.brg_clk;
 669         bd->bi_sccfreq = gd->arch.scc_clk;
 670         bd->bi_vco = gd->arch.vco_out;
 671 #endif /* CONFIG_CPM2 */
 672 #if defined(CONFIG_MPC512X)
 673         bd->bi_ipsfreq = gd->arch.ips_clk;
 674 #endif /* CONFIG_MPC512X */
 675 #if defined(CONFIG_MPC5xxx)
 676         bd->bi_ipbfreq = gd->arch.ipb_clk;
 677         bd->bi_pcifreq = gd->pci_clk;
 678 #endif /* CONFIG_MPC5xxx */
 679
 680         return 0;
 681 }
 682 #endif
 683
 684 #ifdef CONFIG_SYS_EXTBDINFO
 685 static int setup_board_extra(void)
 686 {
 687         bd_t *bd = gd->bd;
 688
 689         strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
 690         strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
 691                 sizeof(bd->bi_r_version));
 692
 693         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 694         bd->bi_plb_busfreq = gd->bus_clk;
 695 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 696                 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 697                 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 698         bd->bi_pci_busfreq = get_PCI_freq();
 699         bd->bi_opbfreq = get_OPB_freq();
 700 #elif defined(CONFIG_XILINX_405)
 701         bd->bi_pci_busfreq = get_PCI_freq();
 702 #endif
 703
 704         return 0;
 705 }
 706 #endif
 707
 708 #ifdef CONFIG_POST
 709 static int init_post(void)
 710 {
 711         post_bootmode_init();
 712         post_run(NULL, POST_ROM | post_bootmode_get(0));
 713
 714         return 0;
 715 }
 716 #endif
 717
 718 static int setup_dram_config(void)
 719 {
 720         /* Ram is board specific, so move it to board code ... */
 721         dram_init_banksize();
 722
 723         return 0;
 724 }
 725
 726 static int reloc_fdt(void)
 727 {
 728         if (gd->new_fdt) {
 729                 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
 730                 gd->fdt_blob = gd->new_fdt;
 731         }
 732
 733         return 0;
 734 }
 735
 736 static int setup_reloc(void)
 737 {
 738 #ifdef CONFIG_SYS_TEXT_BASE
 739         gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
 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 static init_fnc_t init_sequence_f[] = {
 813 #ifdef CONFIG_SANDBOX
 814         setup_ram_buf,
 815 #endif
 816         setup_mon_len,
 817         setup_fdt,
 818         trace_early_init,
 819 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 820         /* TODO: can this go into arch_cpu_init()? */
 821         probecpu,
 822 #endif
 823         arch_cpu_init,          /* basic arch cpu dependent setup */
 824 #ifdef CONFIG_X86
 825         cpu_init_f,             /* TODO(sjg@chromium.org): remove */
 826 # ifdef CONFIG_OF_CONTROL
 827         find_fdt,               /* TODO(sjg@chromium.org): remove */
 828 # endif
 829 #endif
 830         mark_bootstage,
 831 #ifdef CONFIG_OF_CONTROL
 832         fdtdec_check_fdt,
 833 #endif
 834 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 835         board_early_init_f,
 836 #endif
 837         /* TODO: can any of this go into arch_cpu_init()? */
 838 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 839         get_clocks,             /* get CPU and bus clocks (etc.) */
 840 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 841                 && !defined(CONFIG_TQM885D)
 842         adjust_sdram_tbs_8xx,
 843 #endif
 844         /* TODO: can we rename this to timer_init()? */
 845         init_timebase,
 846 #endif
 847 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
 848         timer_init,             /* initialize timer */
 849 #endif
 850 #ifdef CONFIG_SYS_ALLOC_DPRAM
 851 #if !defined(CONFIG_CPM2)
 852         dpram_init,
 853 #endif
 854 #endif
 855 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 856         board_postclk_init,
 857 #endif
 858 #ifdef CONFIG_FSL_ESDHC
 859         get_clocks,
 860 #endif
 861         env_init,               /* initialize environment */
 862 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 863         /* get CPU and bus clocks according to the environment variable */
 864         get_clocks_866,
 865         /* adjust sdram refresh rate according to the new clock */
 866         sdram_adjust_866,
 867         init_timebase,
 868 #endif
 869         initf_malloc,
 870         initf_dm,
 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 #ifdef CONFIG_X86
 911         dram_init_f,            /* configure available RAM banks */
 912         calculate_relocation_address,
 913 #endif
 914         announce_dram_init,
 915         /* TODO: unify all these dram functions? */
 916 #ifdef CONFIG_ARM
 917         dram_init,              /* configure available RAM banks */
 918 #endif
 919 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
 920         init_func_ram,
 921 #endif
 922 #ifdef CONFIG_POST
 923         post_init_f,
 924 #endif
 925         INIT_FUNC_WATCHDOG_RESET
 926 #if defined(CONFIG_SYS_DRAM_TEST)
 927         testdram,
 928 #endif /* CONFIG_SYS_DRAM_TEST */
 929         INIT_FUNC_WATCHDOG_RESET
 930
 931 #ifdef CONFIG_POST
 932         init_post,
 933 #endif
 934         INIT_FUNC_WATCHDOG_RESET
 935         /*
 936          * Now that we have DRAM mapped and working, we can
 937          * relocate the code and continue running from DRAM.
 938          *
 939          * Reserve memory at end of RAM for (top down in that order):
 940          *  - area that won't get touched by U-Boot and Linux (optional)
 941          *  - kernel log buffer
 942          *  - protected RAM
 943          *  - LCD framebuffer
 944          *  - monitor code
 945          *  - board info struct
 946          */
 947         setup_dest_addr,
 948 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
 949         /* Blackfin u-boot monitor should be on top of the ram */
 950         reserve_uboot,
 951 #endif
 952 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 953         reserve_logbuffer,
 954 #endif
 955 #ifdef CONFIG_PRAM
 956         reserve_pram,
 957 #endif
 958         reserve_round_4k,
 959 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 960                 defined(CONFIG_ARM)
 961         reserve_mmu,
 962 #endif
 963 #ifdef CONFIG_LCD
 964         reserve_lcd,
 965 #endif
 966         reserve_trace,
 967         /* TODO: Why the dependency on CONFIG_8xx? */
 968 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 969                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
 970                 !defined(CONFIG_BLACKFIN)
 971         reserve_video,
 972 #endif
 973 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
 974         reserve_uboot,
 975 #endif
 976 #ifndef CONFIG_SPL_BUILD
 977         reserve_malloc,
 978         reserve_board,
 979 #endif
 980         setup_machine,
 981         reserve_global_data,
 982         reserve_fdt,
 983         reserve_stacks,
 984         setup_dram_config,
 985         show_dram_config,
 986 #ifdef CONFIG_PPC
 987         setup_board_part1,
 988         INIT_FUNC_WATCHDOG_RESET
 989         setup_board_part2,
 990 #endif
 991         display_new_sp,
 992 #ifdef CONFIG_SYS_EXTBDINFO
 993         setup_board_extra,
 994 #endif
 995         INIT_FUNC_WATCHDOG_RESET
 996         reloc_fdt,
 997         setup_reloc,
 998 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
 999         jump_to_copy,
1000 #endif
1001         NULL,
1002 };
1003
1004 void board_init_f(ulong boot_flags)
1005 {
1006 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1007         /*
1008          * For some archtectures, global data is initialized and used before
1009          * calling this function. The data should be preserved. For others,
1010          * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1011          * here to host global data until relocation.
1012          */
1013         gd_t data;
1014
1015         gd = &data;
1016
1017         /*
1018          * Clear global data before it is accessed at debug print
1019          * in initcall_run_list. Otherwise the debug print probably
1020          * get the wrong vaule of gd->have_console.
1021          */
1022         zero_global_data();
1023 #endif
1024
1025         gd->flags = boot_flags;
1026         gd->have_console = 0;
1027
1028         if (initcall_run_list(init_sequence_f))
1029                 hang();
1030
1031 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1032         /* NOTREACHED - jump_to_copy() does not return */
1033         hang();
1034 #endif
1035 }
1036
1037 #ifdef CONFIG_X86
1038 /*
1039  * For now this code is only used on x86.
1040  *
1041  * init_sequence_f_r is the list of init functions which are run when
1042  * U-Boot is executing from Flash with a semi-limited 'C' environment.
1043  * The following limitations must be considered when implementing an
1044  * '_f_r' function:
1045  *  - 'static' variables are read-only
1046  *  - Global Data (gd->xxx) is read/write
1047  *
1048  * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1049  * supported).  It _should_, if possible, copy global data to RAM and
1050  * initialise the CPU caches (to speed up the relocation process)
1051  *
1052  * NOTE: At present only x86 uses this route, but it is intended that
1053  * all archs will move to this when generic relocation is implemented.
1054  */
1055 static init_fnc_t init_sequence_f_r[] = {
1056         init_cache_f_r,
1057         copy_uboot_to_ram,
1058         clear_bss,
1059         do_elf_reloc_fixups,
1060
1061         NULL,
1062 };
1063
1064 void board_init_f_r(void)
1065 {
1066         if (initcall_run_list(init_sequence_f_r))
1067                 hang();
1068
1069         /*
1070          * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1071          * Transfer execution from Flash to RAM by calculating the address
1072          * of the in-RAM copy of board_init_r() and calling it
1073          */
1074         (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
1075
1076         /* NOTREACHED - board_init_r() does not return */
1077         hang();
1078 }
1079 #endif /* CONFIG_X86 */