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 <console.h>
  17 #include <environment.h>
  18 #include <dm.h>
  19 #include <fdtdec.h>
  20 #include <fs.h>
  21 #if defined(CONFIG_CMD_IDE)
  22 #include <ide.h>
  23 #endif
  24 #include <i2c.h>
  25 #include <initcall.h>
  26 #include <logbuff.h>
  27 #include <malloc.h>
  28 #include <mapmem.h>
  29
  30 /* TODO: Can we move these into arch/ headers? */
  31 #ifdef CONFIG_8xx
  32 #include <mpc8xx.h>
  33 #endif
  34 #ifdef CONFIG_5xx
  35 #include <mpc5xx.h>
  36 #endif
  37 #ifdef CONFIG_MPC5xxx
  38 #include <mpc5xxx.h>
  39 #endif
  40 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
  41 #include <asm/mp.h>
  42 #endif
  43
  44 #include <os.h>
  45 #include <post.h>
  46 #include <spi.h>
  47 #include <status_led.h>
  48 #include <timer.h>
  49 #include <trace.h>
  50 #include <video.h>
  51 #include <watchdog.h>
  52 #include <linux/errno.h>
  53 #include <asm/io.h>
  54 #include <asm/sections.h>
  55 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
  56 #include <asm/init_helpers.h>
  57 #endif
  58 #if defined(CONFIG_X86) || defined(CONFIG_ARC) || defined(CONFIG_XTENSA)
  59 #include <asm/relocate.h>
  60 #endif
  61 #ifdef CONFIG_SANDBOX
  62 #include <asm/state.h>
  63 #endif
  64 #include <dm/root.h>
  65 #include <linux/compiler.h>
  66
  67 /*
  68  * Pointer to initial global data area
  69  *
  70  * Here we initialize it if needed.
  71  */
  72 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
  73 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
  74 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
  75 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
  76 #else
  77 DECLARE_GLOBAL_DATA_PTR;
  78 #endif
  79
  80 /*
  81  * TODO(sjg@chromium.org): IMO this code should be
  82  * refactored to a single function, something like:
  83  *
  84  * void led_set_state(enum led_colour_t colour, int on);
  85  */
  86 /************************************************************************
  87  * Coloured LED functionality
  88  ************************************************************************
  89  * May be supplied by boards if desired
  90  */
  91 __weak void coloured_LED_init(void) {}
  92 __weak void red_led_on(void) {}
  93 __weak void red_led_off(void) {}
  94 __weak void green_led_on(void) {}
  95 __weak void green_led_off(void) {}
  96 __weak void yellow_led_on(void) {}
  97 __weak void yellow_led_off(void) {}
  98 __weak void blue_led_on(void) {}
  99 __weak void blue_led_off(void) {}
 100
 101 /*
 102  * Why is gd allocated a register? Prior to reloc it might be better to
 103  * just pass it around to each function in this file?
 104  *
 105  * After reloc one could argue that it is hardly used and doesn't need
 106  * to be in a register. Or if it is it should perhaps hold pointers to all
 107  * global data for all modules, so that post-reloc we can avoid the massive
 108  * literal pool we get on ARM. Or perhaps just encourage each module to use
 109  * a structure...
 110  */
 111
 112 /*
 113  * Could the CONFIG_SPL_BUILD infection become a flag in gd?
 114  */
 115
 116 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
 117 static int init_func_watchdog_init(void)
 118 {
 119 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
 120         defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
 121         defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
 122         defined(CONFIG_DESIGNWARE_WATCHDOG) || \
 123         defined(CONFIG_IMX_WATCHDOG))
 124         hw_watchdog_init();
 125         puts("       Watchdog enabled\n");
 126 # endif
 127         WATCHDOG_RESET();
 128
 129         return 0;
 130 }
 131
 132 int init_func_watchdog_reset(void)
 133 {
 134         WATCHDOG_RESET();
 135
 136         return 0;
 137 }
 138 #endif /* CONFIG_WATCHDOG */
 139
 140 __weak void board_add_ram_info(int use_default)
 141 {
 142         /* please define platform specific board_add_ram_info() */
 143 }
 144
 145 static int init_baud_rate(void)
 146 {
 147         gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 148         return 0;
 149 }
 150
 151 static int display_text_info(void)
 152 {
 153 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP)
 154         ulong bss_start, bss_end, text_base;
 155
 156         bss_start = (ulong)&__bss_start;
 157         bss_end = (ulong)&__bss_end;
 158
 159 #ifdef CONFIG_SYS_TEXT_BASE
 160         text_base = CONFIG_SYS_TEXT_BASE;
 161 #else
 162         text_base = CONFIG_SYS_MONITOR_BASE;
 163 #endif
 164
 165         debug("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
 166                 text_base, bss_start, bss_end);
 167 #endif
 168
 169 #ifdef CONFIG_USE_IRQ
 170         debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
 171         debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
 172 #endif
 173
 174         return 0;
 175 }
 176
 177 static int announce_dram_init(void)
 178 {
 179         puts("DRAM:  ");
 180         return 0;
 181 }
 182
 183 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
 184 static int init_func_ram(void)
 185 {
 186 #ifdef  CONFIG_BOARD_TYPES
 187         int board_type = gd->board_type;
 188 #else
 189         int board_type = 0;     /* use dummy arg */
 190 #endif
 191
 192         gd->ram_size = initdram(board_type);
 193
 194         if (gd->ram_size > 0)
 195                 return 0;
 196
 197         puts("*** failed ***\n");
 198         return 1;
 199 }
 200 #endif
 201
 202 static int show_dram_config(void)
 203 {
 204         unsigned long long size;
 205
 206 #ifdef CONFIG_NR_DRAM_BANKS
 207         int i;
 208
 209         debug("\nRAM Configuration:\n");
 210         for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 211                 size += gd->bd->bi_dram[i].size;
 212                 debug("Bank #%d: %llx ", i,
 213                       (unsigned long long)(gd->bd->bi_dram[i].start));
 214 #ifdef DEBUG
 215                 print_size(gd->bd->bi_dram[i].size, "\n");
 216 #endif
 217         }
 218         debug("\nDRAM:  ");
 219 #else
 220         size = gd->ram_size;
 221 #endif
 222
 223         print_size(size, "");
 224         board_add_ram_info(0);
 225         putc('\n');
 226
 227         return 0;
 228 }
 229
 230 __weak void dram_init_banksize(void)
 231 {
 232 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
 233         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 234         gd->bd->bi_dram[0].size = get_effective_memsize();
 235 #endif
 236 }
 237
 238 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 239 static int init_func_i2c(void)
 240 {
 241         puts("I2C:   ");
 242 #ifdef CONFIG_SYS_I2C
 243         i2c_init_all();
 244 #else
 245         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 246 #endif
 247         puts("ready\n");
 248         return 0;
 249 }
 250 #endif
 251
 252 #if defined(CONFIG_HARD_SPI)
 253 static int init_func_spi(void)
 254 {
 255         puts("SPI:   ");
 256         spi_init();
 257         puts("ready\n");
 258         return 0;
 259 }
 260 #endif
 261
 262 __maybe_unused
 263 static int zero_global_data(void)
 264 {
 265         memset((void *)gd, '\0', sizeof(gd_t));
 266
 267         return 0;
 268 }
 269
 270 static int setup_mon_len(void)
 271 {
 272 #if defined(__ARM__) || defined(__MICROBLAZE__)
 273         gd->mon_len = (ulong)&__bss_end - (ulong)_start;
 274 #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP)
 275         gd->mon_len = (ulong)&_end - (ulong)_init;
 276 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2) || \
 277         defined(CONFIG_XTENSA)
 278         gd->mon_len = CONFIG_SYS_MONITOR_LEN;
 279 #elif defined(CONFIG_NDS32) || defined(CONFIG_SH)
 280         gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start);
 281 #elif defined(CONFIG_SYS_MONITOR_BASE)
 282         /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
 283         gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
 284 #endif
 285         return 0;
 286 }
 287
 288 __weak int arch_cpu_init(void)
 289 {
 290         return 0;
 291 }
 292
 293 __weak int mach_cpu_init(void)
 294 {
 295         return 0;
 296 }
 297
 298 #ifdef CONFIG_SANDBOX
 299 static int setup_ram_buf(void)
 300 {
 301         struct sandbox_state *state = state_get_current();
 302
 303         gd->arch.ram_buf = state->ram_buf;
 304         gd->ram_size = state->ram_size;
 305
 306         return 0;
 307 }
 308 #endif
 309
 310 /* Get the top of usable RAM */
 311 __weak ulong board_get_usable_ram_top(ulong total_size)
 312 {
 313 #ifdef CONFIG_SYS_SDRAM_BASE
 314         /*
 315          * Detect whether we have so much RAM that it goes past the end of our
 316          * 32-bit address space. If so, clip the usable RAM so it doesn't.
 317          */
 318         if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
 319                 /*
 320                  * Will wrap back to top of 32-bit space when reservations
 321                  * are made.
 322                  */
 323                 return 0;
 324 #endif
 325         return gd->ram_top;
 326 }
 327
 328 __weak phys_size_t board_reserve_ram_top(phys_size_t ram_size)
 329 {
 330 #ifdef CONFIG_SYS_MEM_TOP_HIDE
 331         return ram_size - CONFIG_SYS_MEM_TOP_HIDE;
 332 #else
 333         return ram_size;
 334 #endif
 335 }
 336
 337 static int setup_dest_addr(void)
 338 {
 339         debug("Monitor len: %08lX\n", gd->mon_len);
 340         /*
 341          * Ram is setup, size stored in gd !!
 342          */
 343         debug("Ram size: %08lX\n", (ulong)gd->ram_size);
 344 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 345         /* Reserve memory for secure MMU tables, and/or security monitor */
 346         gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 347         /*
 348          * Record secure memory location. Need recalcuate if memory splits
 349          * into banks, or the ram base is not zero.
 350          */
 351         gd->arch.secure_ram = gd->ram_size;
 352 #endif
 353         /*
 354          * Subtract specified amount of memory to hide so that it won't
 355          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 356          * the Linux kernel should now get passed the now "corrected"
 357          * memory size and won't touch it either. This has been used
 358          * by arch/powerpc exclusively. Now ARMv8 takes advantage of
 359          * thie mechanism. If memory is split into banks, addresses
 360          * need to be calculated.
 361          */
 362         gd->ram_size = board_reserve_ram_top(gd->ram_size);
 363
 364 #ifdef CONFIG_SYS_SDRAM_BASE
 365         gd->ram_top = CONFIG_SYS_SDRAM_BASE;
 366 #endif
 367         gd->ram_top += get_effective_memsize();
 368         gd->ram_top = board_get_usable_ram_top(gd->mon_len);
 369         gd->relocaddr = gd->ram_top;
 370         debug("Ram top: %08lX\n", (ulong)gd->ram_top);
 371 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 372         /*
 373          * We need to make sure the location we intend to put secondary core
 374          * boot code is reserved and not used by any part of u-boot
 375          */
 376         if (gd->relocaddr > determine_mp_bootpg(NULL)) {
 377                 gd->relocaddr = determine_mp_bootpg(NULL);
 378                 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
 379         }
 380 #endif
 381         return 0;
 382 }
 383
 384 #if defined(CONFIG_SPARC)
 385 static int reserve_prom(void)
 386 {
 387         /* defined in arch/sparc/cpu/leon?/prom.c */
 388         extern void *__prom_start_reloc;
 389         int size = 8192; /* page table = 2k, prom = 6k */
 390         gd->relocaddr -= size;
 391         __prom_start_reloc = map_sysmem(gd->relocaddr + 2048, size - 2048);
 392         debug("Reserving %dk for PROM and page table at %08lx\n", size,
 393                 gd->relocaddr);
 394         return 0;
 395 }
 396 #endif
 397
 398 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 399 static int reserve_logbuffer(void)
 400 {
 401         /* reserve kernel log buffer */
 402         gd->relocaddr -= LOGBUFF_RESERVE;
 403         debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
 404                 gd->relocaddr);
 405         return 0;
 406 }
 407 #endif
 408
 409 #ifdef CONFIG_PRAM
 410 /* reserve protected RAM */
 411 static int reserve_pram(void)
 412 {
 413         ulong reg;
 414
 415         reg = getenv_ulong("pram", 10, CONFIG_PRAM);
 416         gd->relocaddr -= (reg << 10);           /* size is in kB */
 417         debug("Reserving %ldk for protected RAM at %08lx\n", reg,
 418               gd->relocaddr);
 419         return 0;
 420 }
 421 #endif /* CONFIG_PRAM */
 422
 423 /* Round memory pointer down to next 4 kB limit */
 424 static int reserve_round_4k(void)
 425 {
 426         gd->relocaddr &= ~(4096 - 1);
 427         return 0;
 428 }
 429
 430 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 431                 defined(CONFIG_ARM)
 432 static int reserve_mmu(void)
 433 {
 434         /* reserve TLB table */
 435         gd->arch.tlb_size = PGTABLE_SIZE;
 436         gd->relocaddr -= gd->arch.tlb_size;
 437
 438         /* round down to next 64 kB limit */
 439         gd->relocaddr &= ~(0x10000 - 1);
 440
 441         gd->arch.tlb_addr = gd->relocaddr;
 442         debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
 443               gd->arch.tlb_addr + gd->arch.tlb_size);
 444
 445 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 446         /*
 447          * Record allocated tlb_addr in case gd->tlb_addr to be overwritten
 448          * with location within secure ram.
 449          */
 450         gd->arch.tlb_allocated = gd->arch.tlb_addr;
 451 #endif
 452
 453         return 0;
 454 }
 455 #endif
 456
 457 #ifdef CONFIG_DM_VIDEO
 458 static int reserve_video(void)
 459 {
 460         ulong addr;
 461         int ret;
 462
 463         addr = gd->relocaddr;
 464         ret = video_reserve(&addr);
 465         if (ret)
 466                 return ret;
 467         gd->relocaddr = addr;
 468
 469         return 0;
 470 }
 471 #else
 472
 473 # ifdef CONFIG_LCD
 474 static int reserve_lcd(void)
 475 {
 476 #  ifdef CONFIG_FB_ADDR
 477         gd->fb_base = CONFIG_FB_ADDR;
 478 #  else
 479         /* reserve memory for LCD display (always full pages) */
 480         gd->relocaddr = lcd_setmem(gd->relocaddr);
 481         gd->fb_base = gd->relocaddr;
 482 #  endif /* CONFIG_FB_ADDR */
 483
 484         return 0;
 485 }
 486 # endif /* CONFIG_LCD */
 487
 488 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 489                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
 490                 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
 491 static int reserve_legacy_video(void)
 492 {
 493         /* reserve memory for video display (always full pages) */
 494         gd->relocaddr = video_setmem(gd->relocaddr);
 495         gd->fb_base = gd->relocaddr;
 496
 497         return 0;
 498 }
 499 # endif
 500 #endif /* !CONFIG_DM_VIDEO */
 501
 502 static int reserve_trace(void)
 503 {
 504 #ifdef CONFIG_TRACE
 505         gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
 506         gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
 507         debug("Reserving %dk for trace data at: %08lx\n",
 508               CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
 509 #endif
 510
 511         return 0;
 512 }
 513
 514 static int reserve_uboot(void)
 515 {
 516         /*
 517          * reserve memory for U-Boot code, data & bss
 518          * round down to next 4 kB limit
 519          */
 520         gd->relocaddr -= gd->mon_len;
 521         gd->relocaddr &= ~(4096 - 1);
 522 #ifdef CONFIG_E500
 523         /* round down to next 64 kB limit so that IVPR stays aligned */
 524         gd->relocaddr &= ~(65536 - 1);
 525 #endif
 526
 527         debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
 528               gd->relocaddr);
 529
 530         gd->start_addr_sp = gd->relocaddr;
 531
 532         return 0;
 533 }
 534
 535 #ifndef CONFIG_SPL_BUILD
 536 /* reserve memory for malloc() area */
 537 static int reserve_malloc(void)
 538 {
 539         gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
 540         debug("Reserving %dk for malloc() at: %08lx\n",
 541                         TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
 542         return 0;
 543 }
 544
 545 /* (permanently) allocate a Board Info struct */
 546 static int reserve_board(void)
 547 {
 548         if (!gd->bd) {
 549                 gd->start_addr_sp -= sizeof(bd_t);
 550                 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
 551                 memset(gd->bd, '\0', sizeof(bd_t));
 552                 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
 553                       sizeof(bd_t), gd->start_addr_sp);
 554         }
 555         return 0;
 556 }
 557 #endif
 558
 559 static int setup_machine(void)
 560 {
 561 #ifdef CONFIG_MACH_TYPE
 562         gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
 563 #endif
 564         return 0;
 565 }
 566
 567 static int reserve_global_data(void)
 568 {
 569         gd->start_addr_sp -= sizeof(gd_t);
 570         gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
 571         debug("Reserving %zu Bytes for Global Data at: %08lx\n",
 572                         sizeof(gd_t), gd->start_addr_sp);
 573         return 0;
 574 }
 575
 576 static int reserve_fdt(void)
 577 {
 578 #ifndef CONFIG_OF_EMBED
 579         /*
 580          * If the device tree is sitting immediately above our image then we
 581          * must relocate it. If it is embedded in the data section, then it
 582          * will be relocated with other data.
 583          */
 584         if (gd->fdt_blob) {
 585                 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
 586
 587                 gd->start_addr_sp -= gd->fdt_size;
 588                 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
 589                 debug("Reserving %lu Bytes for FDT at: %08lx\n",
 590                       gd->fdt_size, gd->start_addr_sp);
 591         }
 592 #endif
 593
 594         return 0;
 595 }
 596
 597 int arch_reserve_stacks(void)
 598 {
 599         return 0;
 600 }
 601
 602 static int reserve_stacks(void)
 603 {
 604         /* make stack pointer 16-byte aligned */
 605         gd->start_addr_sp -= 16;
 606         gd->start_addr_sp &= ~0xf;
 607
 608         /*
 609          * let the architecture-specific code tailor gd->start_addr_sp and
 610          * gd->irq_sp
 611          */
 612         return arch_reserve_stacks();
 613 }
 614
 615 static int display_new_sp(void)
 616 {
 617         debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
 618
 619         return 0;
 620 }
 621
 622 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
 623         defined(CONFIG_SH)
 624 static int setup_board_part1(void)
 625 {
 626         bd_t *bd = gd->bd;
 627
 628         /*
 629          * Save local variables to board info struct
 630          */
 631         bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;        /* start of memory */
 632         bd->bi_memsize = gd->ram_size;                  /* size in bytes */
 633
 634 #ifdef CONFIG_SYS_SRAM_BASE
 635         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of SRAM */
 636         bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;         /* size  of SRAM */
 637 #endif
 638
 639 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
 640                 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 641         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 642 #endif
 643 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
 644         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 645 #endif
 646 #if defined(CONFIG_MPC83xx)
 647         bd->bi_immrbar = CONFIG_SYS_IMMR;
 648 #endif
 649
 650         return 0;
 651 }
 652 #endif
 653
 654 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
 655 static int setup_board_part2(void)
 656 {
 657         bd_t *bd = gd->bd;
 658
 659         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 660         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 661 #if defined(CONFIG_CPM2)
 662         bd->bi_cpmfreq = gd->arch.cpm_clk;
 663         bd->bi_brgfreq = gd->arch.brg_clk;
 664         bd->bi_sccfreq = gd->arch.scc_clk;
 665         bd->bi_vco = gd->arch.vco_out;
 666 #endif /* CONFIG_CPM2 */
 667 #if defined(CONFIG_MPC512X)
 668         bd->bi_ipsfreq = gd->arch.ips_clk;
 669 #endif /* CONFIG_MPC512X */
 670 #if defined(CONFIG_MPC5xxx)
 671         bd->bi_ipbfreq = gd->arch.ipb_clk;
 672         bd->bi_pcifreq = gd->pci_clk;
 673 #endif /* CONFIG_MPC5xxx */
 674 #if defined(CONFIG_M68K) && defined(CONFIG_PCI)
 675         bd->bi_pcifreq = gd->pci_clk;
 676 #endif
 677 #if defined(CONFIG_EXTRA_CLOCK)
 678         bd->bi_inpfreq = gd->arch.inp_clk;      /* input Freq in Hz */
 679         bd->bi_vcofreq = gd->arch.vco_clk;      /* vco Freq in Hz */
 680         bd->bi_flbfreq = gd->arch.flb_clk;      /* flexbus Freq in Hz */
 681 #endif
 682
 683         return 0;
 684 }
 685 #endif
 686
 687 #ifdef CONFIG_SYS_EXTBDINFO
 688 static int setup_board_extra(void)
 689 {
 690         bd_t *bd = gd->bd;
 691
 692         strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
 693         strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
 694                 sizeof(bd->bi_r_version));
 695
 696         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 697         bd->bi_plb_busfreq = gd->bus_clk;
 698 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 699                 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 700                 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 701         bd->bi_pci_busfreq = get_PCI_freq();
 702         bd->bi_opbfreq = get_OPB_freq();
 703 #elif defined(CONFIG_XILINX_405)
 704         bd->bi_pci_busfreq = get_PCI_freq();
 705 #endif
 706
 707         return 0;
 708 }
 709 #endif
 710
 711 #ifdef CONFIG_POST
 712 static int init_post(void)
 713 {
 714         post_bootmode_init();
 715         post_run(NULL, POST_ROM | post_bootmode_get(0));
 716
 717         return 0;
 718 }
 719 #endif
 720
 721 static int setup_dram_config(void)
 722 {
 723         /* Ram is board specific, so move it to board code ... */
 724         dram_init_banksize();
 725
 726         return 0;
 727 }
 728
 729 static int reloc_fdt(void)
 730 {
 731 #ifndef CONFIG_OF_EMBED
 732         if (gd->flags & GD_FLG_SKIP_RELOC)
 733                 return 0;
 734         if (gd->new_fdt) {
 735                 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
 736                 gd->fdt_blob = gd->new_fdt;
 737         }
 738 #endif
 739
 740         return 0;
 741 }
 742
 743 static int setup_reloc(void)
 744 {
 745         if (gd->flags & GD_FLG_SKIP_RELOC) {
 746                 debug("Skipping relocation due to flag\n");
 747                 return 0;
 748         }
 749
 750 #ifdef CONFIG_SYS_TEXT_BASE
 751         gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
 752 #ifdef CONFIG_M68K
 753         /*
 754          * On all ColdFire arch cpu, monitor code starts always
 755          * just after the default vector table location, so at 0x400
 756          */
 757         gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
 758 #endif
 759 #endif
 760         memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
 761
 762         debug("Relocation Offset is: %08lx\n", gd->reloc_off);
 763         debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
 764               gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
 765               gd->start_addr_sp);
 766
 767         return 0;
 768 }
 769
 770 /* ARM calls relocate_code from its crt0.S */
 771 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
 772
 773 static int jump_to_copy(void)
 774 {
 775         if (gd->flags & GD_FLG_SKIP_RELOC)
 776                 return 0;
 777         /*
 778          * x86 is special, but in a nice way. It uses a trampoline which
 779          * enables the dcache if possible.
 780          *
 781          * For now, other archs use relocate_code(), which is implemented
 782          * similarly for all archs. When we do generic relocation, hopefully
 783          * we can make all archs enable the dcache prior to relocation.
 784          */
 785 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
 786         /*
 787          * SDRAM and console are now initialised. The final stack can now
 788          * be setup in SDRAM. Code execution will continue in Flash, but
 789          * with the stack in SDRAM and Global Data in temporary memory
 790          * (CPU cache)
 791          */
 792         arch_setup_gd(gd->new_gd);
 793         board_init_f_r_trampoline(gd->start_addr_sp);
 794 #else
 795         relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
 796 #endif
 797
 798         return 0;
 799 }
 800 #endif
 801
 802 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
 803 static int mark_bootstage(void)
 804 {
 805         bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
 806
 807         return 0;
 808 }
 809
 810 static int initf_console_record(void)
 811 {
 812 #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN)
 813         return console_record_init();
 814 #else
 815         return 0;
 816 #endif
 817 }
 818
 819 static int initf_dm(void)
 820 {
 821 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
 822         int ret;
 823
 824         ret = dm_init_and_scan(true);
 825         if (ret)
 826                 return ret;
 827 #endif
 828 #ifdef CONFIG_TIMER_EARLY
 829         ret = dm_timer_init();
 830         if (ret)
 831                 return ret;
 832 #endif
 833
 834         return 0;
 835 }
 836
 837 /* Architecture-specific memory reservation */
 838 __weak int reserve_arch(void)
 839 {
 840         return 0;
 841 }
 842
 843 __weak int arch_cpu_init_dm(void)
 844 {
 845         return 0;
 846 }
 847
 848 static init_fnc_t init_sequence_f[] = {
 849 #ifdef CONFIG_SANDBOX
 850         setup_ram_buf,
 851 #endif
 852         setup_mon_len,
 853 #ifdef CONFIG_OF_CONTROL
 854         fdtdec_setup,
 855 #endif
 856 #ifdef CONFIG_TRACE
 857         trace_early_init,
 858 #endif
 859         initf_malloc,
 860         initf_console_record,
 861 #if defined(CONFIG_X86) && defined(CONFIG_HAVE_FSP)
 862         x86_fsp_init,
 863 #endif
 864         arch_cpu_init,          /* basic arch cpu dependent setup */
 865         mach_cpu_init,          /* SoC/machine dependent CPU setup */
 866         initf_dm,
 867         arch_cpu_init_dm,
 868         mark_bootstage,         /* need timer, go after init dm */
 869 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 870         board_early_init_f,
 871 #endif
 872         /* TODO: can any of this go into arch_cpu_init()? */
 873 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 874         get_clocks,             /* get CPU and bus clocks (etc.) */
 875 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 876                 && !defined(CONFIG_TQM885D)
 877         adjust_sdram_tbs_8xx,
 878 #endif
 879         /* TODO: can we rename this to timer_init()? */
 880         init_timebase,
 881 #endif
 882 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \
 883                 defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32) || \
 884                 defined(CONFIG_SH) || defined(CONFIG_SPARC)
 885         timer_init,             /* initialize timer */
 886 #endif
 887 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 888         board_postclk_init,
 889 #endif
 890 #if defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K)
 891         get_clocks,
 892 #endif
 893         env_init,               /* initialize environment */
 894 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 895         /* get CPU and bus clocks according to the environment variable */
 896         get_clocks_866,
 897         /* adjust sdram refresh rate according to the new clock */
 898         sdram_adjust_866,
 899         init_timebase,
 900 #endif
 901         init_baud_rate,         /* initialze baudrate settings */
 902         serial_init,            /* serial communications setup */
 903         console_init_f,         /* stage 1 init of console */
 904 #ifdef CONFIG_SANDBOX
 905         sandbox_early_getopt_check,
 906 #endif
 907         display_options,        /* say that we are here */
 908         display_text_info,      /* show debugging info if required */
 909 #if defined(CONFIG_MPC8260)
 910         prt_8260_rsr,
 911         prt_8260_clks,
 912 #endif /* CONFIG_MPC8260 */
 913 #if defined(CONFIG_MPC83xx)
 914         prt_83xx_rsr,
 915 #endif
 916 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SH)
 917         checkcpu,
 918 #endif
 919         print_cpuinfo,          /* display cpu info (and speed) */
 920 #if defined(CONFIG_MPC5xxx)
 921         prt_mpc5xxx_clks,
 922 #endif /* CONFIG_MPC5xxx */
 923 #if defined(CONFIG_DISPLAY_BOARDINFO)
 924         show_board_info,
 925 #endif
 926         INIT_FUNC_WATCHDOG_INIT
 927 #if defined(CONFIG_MISC_INIT_F)
 928         misc_init_f,
 929 #endif
 930         INIT_FUNC_WATCHDOG_RESET
 931 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 932         init_func_i2c,
 933 #endif
 934 #if defined(CONFIG_HARD_SPI)
 935         init_func_spi,
 936 #endif
 937         announce_dram_init,
 938         /* TODO: unify all these dram functions? */
 939 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \
 940                 defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || \
 941                 defined(CONFIG_SH)
 942         dram_init,              /* configure available RAM banks */
 943 #endif
 944 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
 945         init_func_ram,
 946 #endif
 947 #ifdef CONFIG_POST
 948         post_init_f,
 949 #endif
 950         INIT_FUNC_WATCHDOG_RESET
 951 #if defined(CONFIG_SYS_DRAM_TEST)
 952         testdram,
 953 #endif /* CONFIG_SYS_DRAM_TEST */
 954         INIT_FUNC_WATCHDOG_RESET
 955
 956 #ifdef CONFIG_POST
 957         init_post,
 958 #endif
 959         INIT_FUNC_WATCHDOG_RESET
 960         /*
 961          * Now that we have DRAM mapped and working, we can
 962          * relocate the code and continue running from DRAM.
 963          *
 964          * Reserve memory at end of RAM for (top down in that order):
 965          *  - area that won't get touched by U-Boot and Linux (optional)
 966          *  - kernel log buffer
 967          *  - protected RAM
 968          *  - LCD framebuffer
 969          *  - monitor code
 970          *  - board info struct
 971          */
 972         setup_dest_addr,
 973 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_XTENSA)
 974         /* Blackfin u-boot monitor should be on top of the ram */
 975         reserve_uboot,
 976 #endif
 977 #if defined(CONFIG_SPARC)
 978         reserve_prom,
 979 #endif
 980 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 981         reserve_logbuffer,
 982 #endif
 983 #ifdef CONFIG_PRAM
 984         reserve_pram,
 985 #endif
 986         reserve_round_4k,
 987 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 988                 defined(CONFIG_ARM)
 989         reserve_mmu,
 990 #endif
 991 #ifdef CONFIG_DM_VIDEO
 992         reserve_video,
 993 #else
 994 # ifdef CONFIG_LCD
 995         reserve_lcd,
 996 # endif
 997         /* TODO: Why the dependency on CONFIG_8xx? */
 998 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
 999                 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
1000                 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
1001         reserve_legacy_video,
1002 # endif
1003 #endif /* CONFIG_DM_VIDEO */
1004         reserve_trace,
1005 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_XTENSA)
1006         reserve_uboot,
1007 #endif
1008 #ifndef CONFIG_SPL_BUILD
1009         reserve_malloc,
1010         reserve_board,
1011 #endif
1012         setup_machine,
1013         reserve_global_data,
1014         reserve_fdt,
1015         reserve_arch,
1016         reserve_stacks,
1017         setup_dram_config,
1018         show_dram_config,
1019 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
1020         defined(CONFIG_SH)
1021         setup_board_part1,
1022 #endif
1023 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
1024         INIT_FUNC_WATCHDOG_RESET
1025         setup_board_part2,
1026 #endif
1027         display_new_sp,
1028 #ifdef CONFIG_SYS_EXTBDINFO
1029         setup_board_extra,
1030 #endif
1031         INIT_FUNC_WATCHDOG_RESET
1032         reloc_fdt,
1033         setup_reloc,
1034 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1035         copy_uboot_to_ram,
1036         clear_bss,
1037         do_elf_reloc_fixups,
1038 #endif
1039 #if defined(CONFIG_XTENSA)
1040         clear_bss,
1041 #endif
1042 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1043         jump_to_copy,
1044 #endif
1045         NULL,
1046 };
1047
1048 void board_init_f(ulong boot_flags)
1049 {
1050 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1051         /*
1052          * For some architectures, global data is initialized and used before
1053          * calling this function. The data should be preserved. For others,
1054          * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1055          * here to host global data until relocation.
1056          */
1057         gd_t data;
1058
1059         gd = &data;
1060
1061         /*
1062          * Clear global data before it is accessed at debug print
1063          * in initcall_run_list. Otherwise the debug print probably
1064          * get the wrong value of gd->have_console.
1065          */
1066         zero_global_data();
1067 #endif
1068
1069         gd->flags = boot_flags;
1070         gd->have_console = 0;
1071
1072         if (initcall_run_list(init_sequence_f))
1073                 hang();
1074
1075 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
1076                 !defined(CONFIG_EFI_APP)
1077         /* NOTREACHED - jump_to_copy() does not return */
1078         hang();
1079 #endif
1080 }
1081
1082 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1083 /*
1084  * For now this code is only used on x86.
1085  *
1086  * init_sequence_f_r is the list of init functions which are run when
1087  * U-Boot is executing from Flash with a semi-limited 'C' environment.
1088  * The following limitations must be considered when implementing an
1089  * '_f_r' function:
1090  *  - 'static' variables are read-only
1091  *  - Global Data (gd->xxx) is read/write
1092  *
1093  * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1094  * supported).  It _should_, if possible, copy global data to RAM and
1095  * initialise the CPU caches (to speed up the relocation process)
1096  *
1097  * NOTE: At present only x86 uses this route, but it is intended that
1098  * all archs will move to this when generic relocation is implemented.
1099  */
1100 static init_fnc_t init_sequence_f_r[] = {
1101         init_cache_f_r,
1102
1103         NULL,
1104 };
1105
1106 void board_init_f_r(void)
1107 {
1108         if (initcall_run_list(init_sequence_f_r))
1109                 hang();
1110
1111         /*
1112          * The pre-relocation drivers may be using memory that has now gone
1113          * away. Mark serial as unavailable - this will fall back to the debug
1114          * UART if available.
1115          */
1116         gd->flags &= ~GD_FLG_SERIAL_READY;
1117
1118         /*
1119          * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1120          * Transfer execution from Flash to RAM by calculating the address
1121          * of the in-RAM copy of board_init_r() and calling it
1122          */
1123         (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
1124
1125         /* NOTREACHED - board_init_r() does not return */
1126         hang();
1127 }
1128 #endif /* CONFIG_X86 */