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 <fdtdec.h>
  18 #include <fs.h>
  19 #if defined(CONFIG_CMD_IDE)
  20 #include <ide.h>
  21 #endif
  22 #include <i2c.h>
  23 #include <initcall.h>
  24 #include <logbuff.h>
  25
  26 /* TODO: Can we move these into arch/ headers? */
  27 #ifdef CONFIG_8xx
  28 #include <mpc8xx.h>
  29 #endif
  30 #ifdef CONFIG_5xx
  31 #include <mpc5xx.h>
  32 #endif
  33 #ifdef CONFIG_MPC5xxx
  34 #include <mpc5xxx.h>
  35 #endif
  36
  37 #include <os.h>
  38 #include <post.h>
  39 #include <spi.h>
  40 #include <trace.h>
  41 #include <watchdog.h>
  42 #include <asm/errno.h>
  43 #include <asm/io.h>
  44 #ifdef CONFIG_MP
  45 #include <asm/mp.h>
  46 #endif
  47 #include <asm/sections.h>
  48 #ifdef CONFIG_X86
  49 #include <asm/init_helpers.h>
  50 #include <asm/relocate.h>
  51 #endif
  52 #ifdef CONFIG_SANDBOX
  53 #include <asm/state.h>
  54 #endif
  55 #include <linux/compiler.h>
  56
  57 /*
  58  * Pointer to initial global data area
  59  *
  60  * Here we initialize it if needed.
  61  */
  62 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
  63 #undef  XTRN_DECLARE_GLOBAL_DATA_PTR
  64 #define XTRN_DECLARE_GLOBAL_DATA_PTR    /* empty = allocate here */
  65 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
  66 #else
  67 DECLARE_GLOBAL_DATA_PTR;
  68 #endif
  69
  70 /*
  71  * sjg: IMO this code should be
  72  * refactored to a single function, something like:
  73  *
  74  * void led_set_state(enum led_colour_t colour, int on);
  75  */
  76 /************************************************************************
  77  * Coloured LED functionality
  78  ************************************************************************
  79  * May be supplied by boards if desired
  80  */
  81 inline void __coloured_LED_init(void) {}
  82 void coloured_LED_init(void)
  83         __attribute__((weak, alias("__coloured_LED_init")));
  84 inline void __red_led_on(void) {}
  85 void red_led_on(void) __attribute__((weak, alias("__red_led_on")));
  86 inline void __red_led_off(void) {}
  87 void red_led_off(void) __attribute__((weak, alias("__red_led_off")));
  88 inline void __green_led_on(void) {}
  89 void green_led_on(void) __attribute__((weak, alias("__green_led_on")));
  90 inline void __green_led_off(void) {}
  91 void green_led_off(void) __attribute__((weak, alias("__green_led_off")));
  92 inline void __yellow_led_on(void) {}
  93 void yellow_led_on(void) __attribute__((weak, alias("__yellow_led_on")));
  94 inline void __yellow_led_off(void) {}
  95 void yellow_led_off(void) __attribute__((weak, alias("__yellow_led_off")));
  96 inline void __blue_led_on(void) {}
  97 void blue_led_on(void) __attribute__((weak, alias("__blue_led_on")));
  98 inline void __blue_led_off(void) {}
  99 void blue_led_off(void) __attribute__((weak, alias("__blue_led_off")));
 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)
 117 static int init_func_watchdog_init(void)
 118 {
 119         puts("       Watchdog enabled\n");
 120         WATCHDOG_RESET();
 121
 122         return 0;
 123 }
 124
 125 int init_func_watchdog_reset(void)
 126 {
 127         WATCHDOG_RESET();
 128
 129         return 0;
 130 }
 131 #endif /* CONFIG_WATCHDOG */
 132
 133 void __board_add_ram_info(int use_default)
 134 {
 135         /* please define platform specific board_add_ram_info() */
 136 }
 137
 138 void board_add_ram_info(int)
 139         __attribute__ ((weak, alias("__board_add_ram_info")));
 140
 141 static int init_baud_rate(void)
 142 {
 143         gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
 144         return 0;
 145 }
 146
 147 static int display_text_info(void)
 148 {
 149 #ifndef CONFIG_SANDBOX
 150         ulong bss_start, bss_end;
 151
 152 #ifdef CONFIG_SYS_SYM_OFFSETS
 153         bss_start = _bss_start_ofs + _TEXT_BASE;
 154         bss_end = _bss_end_ofs + _TEXT_BASE;
 155 #else
 156         bss_start = (ulong)&__bss_start;
 157         bss_end = (ulong)&__bss_end;
 158 #endif
 159         debug("U-Boot code: %08X -> %08lX  BSS: -> %08lX\n",
 160               CONFIG_SYS_TEXT_BASE, bss_start, bss_end);
 161 #endif
 162
 163 #ifdef CONFIG_MODEM_SUPPORT
 164         debug("Modem Support enabled\n");
 165 #endif
 166 #ifdef CONFIG_USE_IRQ
 167         debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
 168         debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
 169 #endif
 170
 171         return 0;
 172 }
 173
 174 static int announce_dram_init(void)
 175 {
 176         puts("DRAM:  ");
 177         return 0;
 178 }
 179
 180 #ifdef CONFIG_PPC
 181 static int init_func_ram(void)
 182 {
 183 #ifdef  CONFIG_BOARD_TYPES
 184         int board_type = gd->board_type;
 185 #else
 186         int board_type = 0;     /* use dummy arg */
 187 #endif
 188
 189         gd->ram_size = initdram(board_type);
 190
 191         if (gd->ram_size > 0)
 192                 return 0;
 193
 194         puts("*** failed ***\n");
 195         return 1;
 196 }
 197 #endif
 198
 199 static int show_dram_config(void)
 200 {
 201         ulong size;
 202
 203 #ifdef CONFIG_NR_DRAM_BANKS
 204         int i;
 205
 206         debug("\nRAM Configuration:\n");
 207         for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 208                 size += gd->bd->bi_dram[i].size;
 209                 debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
 210 #ifdef DEBUG
 211                 print_size(gd->bd->bi_dram[i].size, "\n");
 212 #endif
 213         }
 214         debug("\nDRAM:  ");
 215 #else
 216         size = gd->ram_size;
 217 #endif
 218
 219         print_size(size, "");
 220         board_add_ram_info(0);
 221         putc('\n');
 222
 223         return 0;
 224 }
 225
 226 void __dram_init_banksize(void)
 227 {
 228 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
 229         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 230         gd->bd->bi_dram[0].size = get_effective_memsize();
 231 #endif
 232 }
 233
 234 void dram_init_banksize(void)
 235         __attribute__((weak, alias("__dram_init_banksize")));
 236
 237 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 238 static int init_func_i2c(void)
 239 {
 240         puts("I2C:   ");
 241 #ifdef CONFIG_SYS_I2C
 242         i2c_init_all();
 243 #else
 244         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 245 #endif
 246         puts("ready\n");
 247         return 0;
 248 }
 249 #endif
 250
 251 #if defined(CONFIG_HARD_SPI)
 252 static int init_func_spi(void)
 253 {
 254         puts("SPI:   ");
 255         spi_init();
 256         puts("ready\n");
 257         return 0;
 258 }
 259 #endif
 260
 261 __maybe_unused
 262 static int zero_global_data(void)
 263 {
 264         memset((void *)gd, '\0', sizeof(gd_t));
 265
 266         return 0;
 267 }
 268
 269 static int setup_mon_len(void)
 270 {
 271 #ifdef CONFIG_SYS_SYM_OFFSETS
 272         gd->mon_len = _bss_end_ofs;
 273 #elif defined(CONFIG_SANDBOX)
 274         gd->mon_len = (ulong)&_end - (ulong)_init;
 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 #define CHECK(x)                err = (x); if (err) goto failed;
 290
 291 /* Create an empty device tree blob */
 292 static int make_empty_fdt(void *fdt)
 293 {
 294         int err;
 295
 296         CHECK(fdt_create(fdt, 256));
 297         CHECK(fdt_finish_reservemap(fdt));
 298         CHECK(fdt_begin_node(fdt, ""));
 299         CHECK(fdt_end_node(fdt));
 300         CHECK(fdt_finish(fdt));
 301
 302         return 0;
 303 failed:
 304         printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
 305         return -EACCES;
 306 }
 307
 308 static int read_fdt_from_file(void)
 309 {
 310         struct sandbox_state *state = state_get_current();
 311         void *blob;
 312         int size;
 313         int err;
 314
 315         blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
 316         if (!state->fdt_fname) {
 317                 err = make_empty_fdt(blob);
 318                 if (!err)
 319                         goto done;
 320                 return err;
 321         }
 322         err = fs_set_blk_dev("host", NULL, FS_TYPE_SANDBOX);
 323         if (err)
 324                 return err;
 325         size = fs_read(state->fdt_fname, CONFIG_SYS_FDT_LOAD_ADDR, 0, 0);
 326         if (size < 0)
 327                 return -EIO;
 328
 329 done:
 330         gd->fdt_blob = blob;
 331
 332         return 0;
 333 }
 334 #endif
 335
 336 #ifdef CONFIG_SANDBOX
 337 static int setup_ram_buf(void)
 338 {
 339         struct sandbox_state *state = state_get_current();
 340
 341         gd->arch.ram_buf = state->ram_buf;
 342         gd->ram_size = state->ram_size;
 343
 344         return 0;
 345 }
 346 #endif
 347
 348 static int setup_fdt(void)
 349 {
 350 #ifdef CONFIG_OF_EMBED
 351         /* Get a pointer to the FDT */
 352         gd->fdt_blob = __dtb_dt_begin;
 353 #elif defined CONFIG_OF_SEPARATE
 354         /* FDT is at end of image */
 355 # ifdef CONFIG_SYS_SYM_OFFSETS
 356         gd->fdt_blob = (void *)(_end_ofs + CONFIG_SYS_TEXT_BASE);
 357 # else
 358         gd->fdt_blob = (ulong *)&_end;
 359 # endif
 360 #elif defined(CONFIG_OF_HOSTFILE)
 361         if (read_fdt_from_file()) {
 362                 puts("Failed to read control FDT\n");
 363                 return -1;
 364         }
 365 #endif
 366         /* Allow the early environment to override the fdt address */
 367         gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
 368                                                 (uintptr_t)gd->fdt_blob);
 369         return 0;
 370 }
 371
 372 /* Get the top of usable RAM */
 373 __weak ulong board_get_usable_ram_top(ulong total_size)
 374 {
 375         return gd->ram_top;
 376 }
 377
 378 static int setup_dest_addr(void)
 379 {
 380         debug("Monitor len: %08lX\n", gd->mon_len);
 381         /*
 382          * Ram is setup, size stored in gd !!
 383          */
 384         debug("Ram size: %08lX\n", (ulong)gd->ram_size);
 385 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
 386         /*
 387          * Subtract specified amount of memory to hide so that it won't
 388          * get "touched" at all by U-Boot. By fixing up gd->ram_size
 389          * the Linux kernel should now get passed the now "corrected"
 390          * memory size and won't touch it either. This should work
 391          * for arch/ppc and arch/powerpc. Only Linux board ports in
 392          * arch/powerpc with bootwrapper support, that recalculate the
 393          * memory size from the SDRAM controller setup will have to
 394          * get fixed.
 395          */
 396         gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
 397 #endif
 398 #ifdef CONFIG_SYS_SDRAM_BASE
 399         gd->ram_top = CONFIG_SYS_SDRAM_BASE;
 400 #endif
 401         gd->ram_top += get_effective_memsize();
 402         gd->ram_top = board_get_usable_ram_top(gd->mon_len);
 403         gd->relocaddr = gd->ram_top;
 404         debug("Ram top: %08lX\n", (ulong)gd->ram_top);
 405 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
 406         /*
 407          * We need to make sure the location we intend to put secondary core
 408          * boot code is reserved and not used by any part of u-boot
 409          */
 410         if (gd->relocaddr > determine_mp_bootpg(NULL)) {
 411                 gd->relocaddr = determine_mp_bootpg(NULL);
 412                 debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
 413         }
 414 #endif
 415         return 0;
 416 }
 417
 418 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 419 static int reserve_logbuffer(void)
 420 {
 421         /* reserve kernel log buffer */
 422         gd->relocaddr -= LOGBUFF_RESERVE;
 423         debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
 424                 gd->relocaddr);
 425         return 0;
 426 }
 427 #endif
 428
 429 #ifdef CONFIG_PRAM
 430 /* reserve protected RAM */
 431 static int reserve_pram(void)
 432 {
 433         ulong reg;
 434
 435         reg = getenv_ulong("pram", 10, CONFIG_PRAM);
 436         gd->relocaddr -= (reg << 10);           /* size is in kB */
 437         debug("Reserving %ldk for protected RAM at %08lx\n", reg,
 438               gd->relocaddr);
 439         return 0;
 440 }
 441 #endif /* CONFIG_PRAM */
 442
 443 /* Round memory pointer down to next 4 kB limit */
 444 static int reserve_round_4k(void)
 445 {
 446         gd->relocaddr &= ~(4096 - 1);
 447         return 0;
 448 }
 449
 450 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 451                 defined(CONFIG_ARM)
 452 static int reserve_mmu(void)
 453 {
 454         /* reserve TLB table */
 455         gd->arch.tlb_size = PGTABLE_SIZE;
 456         gd->relocaddr -= gd->arch.tlb_size;
 457
 458         /* round down to next 64 kB limit */
 459         gd->relocaddr &= ~(0x10000 - 1);
 460
 461         gd->arch.tlb_addr = gd->relocaddr;
 462         debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
 463               gd->arch.tlb_addr + gd->arch.tlb_size);
 464         return 0;
 465 }
 466 #endif
 467
 468 #ifdef CONFIG_LCD
 469 static int reserve_lcd(void)
 470 {
 471 #ifdef CONFIG_FB_ADDR
 472         gd->fb_base = CONFIG_FB_ADDR;
 473 #else
 474         /* reserve memory for LCD display (always full pages) */
 475         gd->relocaddr = lcd_setmem(gd->relocaddr);
 476         gd->fb_base = gd->relocaddr;
 477 #endif /* CONFIG_FB_ADDR */
 478         return 0;
 479 }
 480 #endif /* CONFIG_LCD */
 481
 482 static int reserve_trace(void)
 483 {
 484 #ifdef CONFIG_TRACE
 485         gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
 486         gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
 487         debug("Reserving %dk for trace data at: %08lx\n",
 488               CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
 489 #endif
 490
 491         return 0;
 492 }
 493
 494 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \
 495                 && !defined(CONFIG_ARM) && !defined(CONFIG_X86)
 496 static int reserve_video(void)
 497 {
 498         /* reserve memory for video display (always full pages) */
 499         gd->relocaddr = video_setmem(gd->relocaddr);
 500         gd->fb_base = gd->relocaddr;
 501
 502         return 0;
 503 }
 504 #endif
 505
 506 static int reserve_uboot(void)
 507 {
 508         /*
 509          * reserve memory for U-Boot code, data & bss
 510          * round down to next 4 kB limit
 511          */
 512         gd->relocaddr -= gd->mon_len;
 513         gd->relocaddr &= ~(4096 - 1);
 514 #ifdef CONFIG_E500
 515         /* round down to next 64 kB limit so that IVPR stays aligned */
 516         gd->relocaddr &= ~(65536 - 1);
 517 #endif
 518
 519         debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
 520               gd->relocaddr);
 521
 522         gd->start_addr_sp = gd->relocaddr;
 523
 524         return 0;
 525 }
 526
 527 #ifndef CONFIG_SPL_BUILD
 528 /* reserve memory for malloc() area */
 529 static int reserve_malloc(void)
 530 {
 531         gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
 532         debug("Reserving %dk for malloc() at: %08lx\n",
 533                         TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
 534         return 0;
 535 }
 536
 537 /* (permanently) allocate a Board Info struct */
 538 static int reserve_board(void)
 539 {
 540         gd->start_addr_sp -= sizeof(bd_t);
 541         gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
 542         memset(gd->bd, '\0', sizeof(bd_t));
 543         debug("Reserving %zu Bytes for Board Info at: %08lx\n",
 544                         sizeof(bd_t), gd->start_addr_sp);
 545         return 0;
 546 }
 547 #endif
 548
 549 static int setup_machine(void)
 550 {
 551 #ifdef CONFIG_MACH_TYPE
 552         gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
 553 #endif
 554         return 0;
 555 }
 556
 557 static int reserve_global_data(void)
 558 {
 559         gd->start_addr_sp -= sizeof(gd_t);
 560         gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
 561         debug("Reserving %zu Bytes for Global Data at: %08lx\n",
 562                         sizeof(gd_t), gd->start_addr_sp);
 563         return 0;
 564 }
 565
 566 static int reserve_fdt(void)
 567 {
 568         /*
 569          * If the device tree is sitting immediate above our image then we
 570          * must relocate it. If it is embedded in the data section, then it
 571          * will be relocated with other data.
 572          */
 573         if (gd->fdt_blob) {
 574                 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
 575
 576                 gd->start_addr_sp -= gd->fdt_size;
 577                 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
 578                 debug("Reserving %lu Bytes for FDT at: %08lx\n",
 579                       gd->fdt_size, gd->start_addr_sp);
 580         }
 581
 582         return 0;
 583 }
 584
 585 static int reserve_stacks(void)
 586 {
 587 #ifdef CONFIG_SPL_BUILD
 588 # ifdef CONFIG_ARM
 589         gd->start_addr_sp -= 128;       /* leave 32 words for abort-stack */
 590         gd->irq_sp = gd->start_addr_sp;
 591 # endif
 592 #else
 593 # ifdef CONFIG_PPC
 594         ulong *s;
 595 # endif
 596
 597         /* setup stack pointer for exceptions */
 598         gd->start_addr_sp -= 16;
 599         gd->start_addr_sp &= ~0xf;
 600         gd->irq_sp = gd->start_addr_sp;
 601
 602         /*
 603          * Handle architecture-specific things here
 604          * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
 605          * to handle this and put in arch/xxx/lib/stack.c
 606          */
 607 # if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
 608 #  ifdef CONFIG_USE_IRQ
 609         gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
 610         debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
 611                 CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
 612
 613         /* 8-byte alignment for ARM ABI compliance */
 614         gd->start_addr_sp &= ~0x07;
 615 #  endif
 616         /* leave 3 words for abort-stack, plus 1 for alignment */
 617         gd->start_addr_sp -= 16;
 618 # elif defined(CONFIG_PPC)
 619         /* Clear initial stack frame */
 620         s = (ulong *) gd->start_addr_sp;
 621         *s = 0; /* Terminate back chain */
 622         *++s = 0; /* NULL return address */
 623 # endif /* Architecture specific code */
 624
 625         return 0;
 626 #endif
 627 }
 628
 629 static int display_new_sp(void)
 630 {
 631         debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
 632
 633         return 0;
 634 }
 635
 636 #ifdef CONFIG_PPC
 637 static int setup_board_part1(void)
 638 {
 639         bd_t *bd = gd->bd;
 640
 641         /*
 642          * Save local variables to board info struct
 643          */
 644
 645         bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;        /* start of memory */
 646         bd->bi_memsize = gd->ram_size;                  /* size in bytes */
 647
 648 #ifdef CONFIG_SYS_SRAM_BASE
 649         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;        /* start of SRAM */
 650         bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;         /* size  of SRAM */
 651 #endif
 652
 653 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
 654                 defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 655         bd->bi_immr_base = CONFIG_SYS_IMMR;     /* base  of IMMR register     */
 656 #endif
 657 #if defined(CONFIG_MPC5xxx)
 658         bd->bi_mbar_base = CONFIG_SYS_MBAR;     /* base of internal registers */
 659 #endif
 660 #if defined(CONFIG_MPC83xx)
 661         bd->bi_immrbar = CONFIG_SYS_IMMR;
 662 #endif
 663
 664         return 0;
 665 }
 666
 667 static int setup_board_part2(void)
 668 {
 669         bd_t *bd = gd->bd;
 670
 671         bd->bi_intfreq = gd->cpu_clk;   /* Internal Freq, in Hz */
 672         bd->bi_busfreq = gd->bus_clk;   /* Bus Freq,      in Hz */
 673 #if defined(CONFIG_CPM2)
 674         bd->bi_cpmfreq = gd->arch.cpm_clk;
 675         bd->bi_brgfreq = gd->arch.brg_clk;
 676         bd->bi_sccfreq = gd->arch.scc_clk;
 677         bd->bi_vco = gd->arch.vco_out;
 678 #endif /* CONFIG_CPM2 */
 679 #if defined(CONFIG_MPC512X)
 680         bd->bi_ipsfreq = gd->arch.ips_clk;
 681 #endif /* CONFIG_MPC512X */
 682 #if defined(CONFIG_MPC5xxx)
 683         bd->bi_ipbfreq = gd->arch.ipb_clk;
 684         bd->bi_pcifreq = gd->pci_clk;
 685 #endif /* CONFIG_MPC5xxx */
 686
 687         return 0;
 688 }
 689 #endif
 690
 691 #ifdef CONFIG_SYS_EXTBDINFO
 692 static int setup_board_extra(void)
 693 {
 694         bd_t *bd = gd->bd;
 695
 696         strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
 697         strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
 698                 sizeof(bd->bi_r_version));
 699
 700         bd->bi_procfreq = gd->cpu_clk;  /* Processor Speed, In Hz */
 701         bd->bi_plb_busfreq = gd->bus_clk;
 702 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
 703                 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
 704                 defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 705         bd->bi_pci_busfreq = get_PCI_freq();
 706         bd->bi_opbfreq = get_OPB_freq();
 707 #elif defined(CONFIG_XILINX_405)
 708         bd->bi_pci_busfreq = get_PCI_freq();
 709 #endif
 710
 711         return 0;
 712 }
 713 #endif
 714
 715 #ifdef CONFIG_POST
 716 static int init_post(void)
 717 {
 718         post_bootmode_init();
 719         post_run(NULL, POST_ROM | post_bootmode_get(0));
 720
 721         return 0;
 722 }
 723 #endif
 724
 725 static int setup_baud_rate(void)
 726 {
 727         /* Ick, can we get rid of this line? */
 728         gd->bd->bi_baudrate = gd->baudrate;
 729
 730         return 0;
 731 }
 732
 733 static int setup_dram_config(void)
 734 {
 735         /* Ram is board specific, so move it to board code ... */
 736         dram_init_banksize();
 737
 738         return 0;
 739 }
 740
 741 static int reloc_fdt(void)
 742 {
 743         if (gd->new_fdt) {
 744                 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
 745                 gd->fdt_blob = gd->new_fdt;
 746         }
 747
 748         return 0;
 749 }
 750
 751 static int setup_reloc(void)
 752 {
 753         gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
 754         memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
 755
 756         debug("Relocation Offset is: %08lx\n", gd->reloc_off);
 757         debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
 758               gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
 759               gd->start_addr_sp);
 760
 761         return 0;
 762 }
 763
 764 /* ARM calls relocate_code from its crt0.S */
 765 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
 766
 767 static int jump_to_copy(void)
 768 {
 769         /*
 770          * x86 is special, but in a nice way. It uses a trampoline which
 771          * enables the dcache if possible.
 772          *
 773          * For now, other archs use relocate_code(), which is implemented
 774          * similarly for all archs. When we do generic relocation, hopefully
 775          * we can make all archs enable the dcache prior to relocation.
 776          */
 777 #ifdef CONFIG_X86
 778         /*
 779          * SDRAM and console are now initialised. The final stack can now
 780          * be setup in SDRAM. Code execution will continue in Flash, but
 781          * with the stack in SDRAM and Global Data in temporary memory
 782          * (CPU cache)
 783          */
 784         board_init_f_r_trampoline(gd->start_addr_sp);
 785 #else
 786         relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
 787 #endif
 788
 789         return 0;
 790 }
 791 #endif
 792
 793 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
 794 static int mark_bootstage(void)
 795 {
 796         bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
 797
 798         return 0;
 799 }
 800
 801 static init_fnc_t init_sequence_f[] = {
 802 #ifdef CONFIG_SANDBOX
 803         setup_ram_buf,
 804 #endif
 805         setup_mon_len,
 806         setup_fdt,
 807         trace_early_init,
 808 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
 809         /* TODO: can this go into arch_cpu_init()? */
 810         probecpu,
 811 #endif
 812         arch_cpu_init,          /* basic arch cpu dependent setup */
 813 #ifdef CONFIG_X86
 814         cpu_init_f,             /* TODO(sjg@chromium.org): remove */
 815 # ifdef CONFIG_OF_CONTROL
 816         find_fdt,               /* TODO(sjg@chromium.org): remove */
 817 # endif
 818 #endif
 819         mark_bootstage,
 820 #ifdef CONFIG_OF_CONTROL
 821         fdtdec_check_fdt,
 822 #endif
 823 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 824         board_early_init_f,
 825 #endif
 826         /* TODO: can any of this go into arch_cpu_init()? */
 827 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
 828         get_clocks,             /* get CPU and bus clocks (etc.) */
 829 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
 830                 && !defined(CONFIG_TQM885D)
 831         adjust_sdram_tbs_8xx,
 832 #endif
 833         /* TODO: can we rename this to timer_init()? */
 834         init_timebase,
 835 #endif
 836 #ifdef CONFIG_ARM
 837         timer_init,             /* initialize timer */
 838 #endif
 839 #ifdef CONFIG_SYS_ALLOC_DPRAM
 840 #if !defined(CONFIG_CPM2)
 841         dpram_init,
 842 #endif
 843 #endif
 844 #if defined(CONFIG_BOARD_POSTCLK_INIT)
 845         board_postclk_init,
 846 #endif
 847 #ifdef CONFIG_FSL_ESDHC
 848         get_clocks,
 849 #endif
 850         env_init,               /* initialize environment */
 851 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
 852         /* get CPU and bus clocks according to the environment variable */
 853         get_clocks_866,
 854         /* adjust sdram refresh rate according to the new clock */
 855         sdram_adjust_866,
 856         init_timebase,
 857 #endif
 858         init_baud_rate,         /* initialze baudrate settings */
 859         serial_init,            /* serial communications setup */
 860         console_init_f,         /* stage 1 init of console */
 861 #ifdef CONFIG_SANDBOX
 862         sandbox_early_getopt_check,
 863 #endif
 864 #ifdef CONFIG_OF_CONTROL
 865         fdtdec_prepare_fdt,
 866 #endif
 867         display_options,        /* say that we are here */
 868         display_text_info,      /* show debugging info if required */
 869 #if defined(CONFIG_8260)
 870         prt_8260_rsr,
 871         prt_8260_clks,
 872 #endif /* CONFIG_8260 */
 873 #if defined(CONFIG_MPC83xx)
 874         prt_83xx_rsr,
 875 #endif
 876 #ifdef CONFIG_PPC
 877         checkcpu,
 878 #endif
 879         print_cpuinfo,          /* display cpu info (and speed) */
 880 #if defined(CONFIG_MPC5xxx)
 881         prt_mpc5xxx_clks,
 882 #endif /* CONFIG_MPC5xxx */
 883 #if defined(CONFIG_DISPLAY_BOARDINFO)
 884         checkboard,             /* display board info */
 885 #endif
 886         INIT_FUNC_WATCHDOG_INIT
 887 #if defined(CONFIG_MISC_INIT_F)
 888         misc_init_f,
 889 #endif
 890         INIT_FUNC_WATCHDOG_RESET
 891 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
 892         init_func_i2c,
 893 #endif
 894 #if defined(CONFIG_HARD_SPI)
 895         init_func_spi,
 896 #endif
 897 #ifdef CONFIG_X86
 898         dram_init_f,            /* configure available RAM banks */
 899         calculate_relocation_address,
 900 #endif
 901         announce_dram_init,
 902         /* TODO: unify all these dram functions? */
 903 #ifdef CONFIG_ARM
 904         dram_init,              /* configure available RAM banks */
 905 #endif
 906 #ifdef CONFIG_PPC
 907         init_func_ram,
 908 #endif
 909 #ifdef CONFIG_POST
 910         post_init_f,
 911 #endif
 912         INIT_FUNC_WATCHDOG_RESET
 913 #if defined(CONFIG_SYS_DRAM_TEST)
 914         testdram,
 915 #endif /* CONFIG_SYS_DRAM_TEST */
 916         INIT_FUNC_WATCHDOG_RESET
 917
 918 #ifdef CONFIG_POST
 919         init_post,
 920 #endif
 921         INIT_FUNC_WATCHDOG_RESET
 922         /*
 923          * Now that we have DRAM mapped and working, we can
 924          * relocate the code and continue running from DRAM.
 925          *
 926          * Reserve memory at end of RAM for (top down in that order):
 927          *  - area that won't get touched by U-Boot and Linux (optional)
 928          *  - kernel log buffer
 929          *  - protected RAM
 930          *  - LCD framebuffer
 931          *  - monitor code
 932          *  - board info struct
 933          */
 934         setup_dest_addr,
 935 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
 936         reserve_logbuffer,
 937 #endif
 938 #ifdef CONFIG_PRAM
 939         reserve_pram,
 940 #endif
 941         reserve_round_4k,
 942 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
 943                 defined(CONFIG_ARM)
 944         reserve_mmu,
 945 #endif
 946 #ifdef CONFIG_LCD
 947         reserve_lcd,
 948 #endif
 949         reserve_trace,
 950         /* TODO: Why the dependency on CONFIG_8xx? */
 951 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \
 952                 && !defined(CONFIG_ARM) && !defined(CONFIG_X86)
 953         reserve_video,
 954 #endif
 955         reserve_uboot,
 956 #ifndef CONFIG_SPL_BUILD
 957         reserve_malloc,
 958         reserve_board,
 959 #endif
 960         setup_machine,
 961         reserve_global_data,
 962         reserve_fdt,
 963         reserve_stacks,
 964         setup_dram_config,
 965         show_dram_config,
 966 #ifdef CONFIG_PPC
 967         setup_board_part1,
 968         INIT_FUNC_WATCHDOG_RESET
 969         setup_board_part2,
 970 #endif
 971         setup_baud_rate,
 972         display_new_sp,
 973 #ifdef CONFIG_SYS_EXTBDINFO
 974         setup_board_extra,
 975 #endif
 976         INIT_FUNC_WATCHDOG_RESET
 977         reloc_fdt,
 978         setup_reloc,
 979 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
 980         jump_to_copy,
 981 #endif
 982         NULL,
 983 };
 984
 985 void board_init_f(ulong boot_flags)
 986 {
 987 #ifndef CONFIG_X86
 988         gd_t data;
 989
 990         gd = &data;
 991 #endif
 992
 993         /*
 994          * Clear global data before it is accessed at debug print
 995          * in initcall_run_list. Otherwise the debug print probably
 996          * get the wrong vaule of gd->have_console.
 997          */
 998 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \
 999                 !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \
1000                 !defined(CONFIG_MPC86xx) && !defined(CONFIG_X86)
1001         zero_global_data();
1002 #endif
1003
1004         gd->flags = boot_flags;
1005         gd->have_console = 0;
1006
1007         if (initcall_run_list(init_sequence_f))
1008                 hang();
1009
1010 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1011         /* NOTREACHED - jump_to_copy() does not return */
1012         hang();
1013 #endif
1014 }
1015
1016 #ifdef CONFIG_X86
1017 /*
1018  * For now this code is only used on x86.
1019  *
1020  * init_sequence_f_r is the list of init functions which are run when
1021  * U-Boot is executing from Flash with a semi-limited 'C' environment.
1022  * The following limitations must be considered when implementing an
1023  * '_f_r' function:
1024  *  - 'static' variables are read-only
1025  *  - Global Data (gd->xxx) is read/write
1026  *
1027  * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1028  * supported).  It _should_, if possible, copy global data to RAM and
1029  * initialise the CPU caches (to speed up the relocation process)
1030  *
1031  * NOTE: At present only x86 uses this route, but it is intended that
1032  * all archs will move to this when generic relocation is implemented.
1033  */
1034 static init_fnc_t init_sequence_f_r[] = {
1035         init_cache_f_r,
1036         copy_uboot_to_ram,
1037         clear_bss,
1038         do_elf_reloc_fixups,
1039
1040         NULL,
1041 };
1042
1043 void board_init_f_r(void)
1044 {
1045         if (initcall_run_list(init_sequence_f_r))
1046                 hang();
1047
1048         /*
1049          * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1050          * Transfer execution from Flash to RAM by calculating the address
1051          * of the in-RAM copy of board_init_r() and calling it
1052          */
1053         (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
1054
1055         /* NOTREACHED - board_init_r() does not return */
1056         hang();
1057 }
1058 #endif /* CONFIG_X86 */