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 <trace.h> 49 #include <watchdog.h> 50 #include <asm/errno.h> 51 #include <asm/io.h> 52 #include <asm/sections.h> 53 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 54 #include <asm/init_helpers.h> 55 #include <asm/relocate.h> 56 #endif 57 #ifdef CONFIG_SANDBOX 58 #include <asm/state.h> 59 #endif 60 #include <dm/root.h> 61 #include <linux/compiler.h> 62 63 /* 64 * Pointer to initial global data area 65 * 66 * Here we initialize it if needed. 67 */ 68 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR 69 #undef XTRN_DECLARE_GLOBAL_DATA_PTR 70 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ 71 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR); 72 #else 73 DECLARE_GLOBAL_DATA_PTR; 74 #endif 75 76 /* 77 * TODO(sjg@chromium.org): IMO this code should be 78 * refactored to a single function, something like: 79 * 80 * void led_set_state(enum led_colour_t colour, int on); 81 */ 82 /************************************************************************ 83 * Coloured LED functionality 84 ************************************************************************ 85 * May be supplied by boards if desired 86 */ 87 __weak void coloured_LED_init(void) {} 88 __weak void red_led_on(void) {} 89 __weak void red_led_off(void) {} 90 __weak void green_led_on(void) {} 91 __weak void green_led_off(void) {} 92 __weak void yellow_led_on(void) {} 93 __weak void yellow_led_off(void) {} 94 __weak void blue_led_on(void) {} 95 __weak void blue_led_off(void) {} 96 97 /* 98 * Why is gd allocated a register? Prior to reloc it might be better to 99 * just pass it around to each function in this file? 100 * 101 * After reloc one could argue that it is hardly used and doesn't need 102 * to be in a register. Or if it is it should perhaps hold pointers to all 103 * global data for all modules, so that post-reloc we can avoid the massive 104 * literal pool we get on ARM. Or perhaps just encourage each module to use 105 * a structure... 106 */ 107 108 /* 109 * Could the CONFIG_SPL_BUILD infection become a flag in gd? 110 */ 111 112 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG) 113 static int init_func_watchdog_init(void) 114 { 115 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \ 116 defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \ 117 defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \ 118 defined(CONFIG_IMX_WATCHDOG)) 119 hw_watchdog_init(); 120 # endif 121 puts(" Watchdog enabled\n"); 122 WATCHDOG_RESET(); 123 124 return 0; 125 } 126 127 int init_func_watchdog_reset(void) 128 { 129 WATCHDOG_RESET(); 130 131 return 0; 132 } 133 #endif /* CONFIG_WATCHDOG */ 134 135 __weak void board_add_ram_info(int use_default) 136 { 137 /* please define platform specific board_add_ram_info() */ 138 } 139 140 static int init_baud_rate(void) 141 { 142 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); 143 return 0; 144 } 145 146 static int display_text_info(void) 147 { 148 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP) 149 ulong bss_start, bss_end, text_base; 150 151 bss_start = (ulong)&__bss_start; 152 bss_end = (ulong)&__bss_end; 153 154 #ifdef CONFIG_SYS_TEXT_BASE 155 text_base = CONFIG_SYS_TEXT_BASE; 156 #else 157 text_base = CONFIG_SYS_MONITOR_BASE; 158 #endif 159 160 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n", 161 text_base, bss_start, bss_end); 162 #endif 163 164 #ifdef CONFIG_MODEM_SUPPORT 165 debug("Modem Support enabled\n"); 166 #endif 167 #ifdef CONFIG_USE_IRQ 168 debug("IRQ Stack: %08lx\n", IRQ_STACK_START); 169 debug("FIQ Stack: %08lx\n", FIQ_STACK_START); 170 #endif 171 172 return 0; 173 } 174 175 static int announce_dram_init(void) 176 { 177 puts("DRAM: "); 178 return 0; 179 } 180 181 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K) 182 static int init_func_ram(void) 183 { 184 #ifdef CONFIG_BOARD_TYPES 185 int board_type = gd->board_type; 186 #else 187 int board_type = 0; /* use dummy arg */ 188 #endif 189 190 gd->ram_size = initdram(board_type); 191 192 if (gd->ram_size > 0) 193 return 0; 194 195 puts("*** failed ***\n"); 196 return 1; 197 } 198 #endif 199 200 static int show_dram_config(void) 201 { 202 unsigned long long size; 203 204 #ifdef CONFIG_NR_DRAM_BANKS 205 int i; 206 207 debug("\nRAM Configuration:\n"); 208 for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 209 size += gd->bd->bi_dram[i].size; 210 debug("Bank #%d: %llx ", i, 211 (unsigned long long)(gd->bd->bi_dram[i].start)); 212 #ifdef DEBUG 213 print_size(gd->bd->bi_dram[i].size, "\n"); 214 #endif 215 } 216 debug("\nDRAM: "); 217 #else 218 size = gd->ram_size; 219 #endif 220 221 print_size(size, ""); 222 board_add_ram_info(0); 223 putc('\n'); 224 225 return 0; 226 } 227 228 __weak void dram_init_banksize(void) 229 { 230 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE) 231 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 232 gd->bd->bi_dram[0].size = get_effective_memsize(); 233 #endif 234 } 235 236 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) 237 static int init_func_i2c(void) 238 { 239 puts("I2C: "); 240 #ifdef CONFIG_SYS_I2C 241 i2c_init_all(); 242 #else 243 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); 244 #endif 245 puts("ready\n"); 246 return 0; 247 } 248 #endif 249 250 #if defined(CONFIG_HARD_SPI) 251 static int init_func_spi(void) 252 { 253 puts("SPI: "); 254 spi_init(); 255 puts("ready\n"); 256 return 0; 257 } 258 #endif 259 260 __maybe_unused 261 static int zero_global_data(void) 262 { 263 memset((void *)gd, '\0', sizeof(gd_t)); 264 265 return 0; 266 } 267 268 static int setup_mon_len(void) 269 { 270 #if defined(__ARM__) || defined(__MICROBLAZE__) 271 gd->mon_len = (ulong)&__bss_end - (ulong)_start; 272 #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP) 273 gd->mon_len = (ulong)&_end - (ulong)_init; 274 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2) 275 gd->mon_len = CONFIG_SYS_MONITOR_LEN; 276 #elif defined(CONFIG_NDS32) 277 gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start); 278 #else 279 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */ 280 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE; 281 #endif 282 return 0; 283 } 284 285 __weak int arch_cpu_init(void) 286 { 287 return 0; 288 } 289 290 #ifdef CONFIG_SANDBOX 291 static int setup_ram_buf(void) 292 { 293 struct sandbox_state *state = state_get_current(); 294 295 gd->arch.ram_buf = state->ram_buf; 296 gd->ram_size = state->ram_size; 297 298 return 0; 299 } 300 #endif 301 302 /* Get the top of usable RAM */ 303 __weak ulong board_get_usable_ram_top(ulong total_size) 304 { 305 #ifdef CONFIG_SYS_SDRAM_BASE 306 /* 307 * Detect whether we have so much RAM that it goes past the end of our 308 * 32-bit address space. If so, clip the usable RAM so it doesn't. 309 */ 310 if (gd->ram_top < CONFIG_SYS_SDRAM_BASE) 311 /* 312 * Will wrap back to top of 32-bit space when reservations 313 * are made. 314 */ 315 return 0; 316 #endif 317 return gd->ram_top; 318 } 319 320 static int setup_dest_addr(void) 321 { 322 debug("Monitor len: %08lX\n", gd->mon_len); 323 /* 324 * Ram is setup, size stored in gd !! 325 */ 326 debug("Ram size: %08lX\n", (ulong)gd->ram_size); 327 #if defined(CONFIG_SYS_MEM_TOP_HIDE) 328 /* 329 * Subtract specified amount of memory to hide so that it won't 330 * get "touched" at all by U-Boot. By fixing up gd->ram_size 331 * the Linux kernel should now get passed the now "corrected" 332 * memory size and won't touch it either. This should work 333 * for arch/ppc and arch/powerpc. Only Linux board ports in 334 * arch/powerpc with bootwrapper support, that recalculate the 335 * memory size from the SDRAM controller setup will have to 336 * get fixed. 337 */ 338 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; 339 #endif 340 #ifdef CONFIG_SYS_SDRAM_BASE 341 gd->ram_top = CONFIG_SYS_SDRAM_BASE; 342 #endif 343 gd->ram_top += get_effective_memsize(); 344 gd->ram_top = board_get_usable_ram_top(gd->mon_len); 345 gd->relocaddr = gd->ram_top; 346 debug("Ram top: %08lX\n", (ulong)gd->ram_top); 347 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) 348 /* 349 * We need to make sure the location we intend to put secondary core 350 * boot code is reserved and not used by any part of u-boot 351 */ 352 if (gd->relocaddr > determine_mp_bootpg(NULL)) { 353 gd->relocaddr = determine_mp_bootpg(NULL); 354 debug("Reserving MP boot page to %08lx\n", gd->relocaddr); 355 } 356 #endif 357 return 0; 358 } 359 360 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 361 static int reserve_logbuffer(void) 362 { 363 /* reserve kernel log buffer */ 364 gd->relocaddr -= LOGBUFF_RESERVE; 365 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, 366 gd->relocaddr); 367 return 0; 368 } 369 #endif 370 371 #ifdef CONFIG_PRAM 372 /* reserve protected RAM */ 373 static int reserve_pram(void) 374 { 375 ulong reg; 376 377 reg = getenv_ulong("pram", 10, CONFIG_PRAM); 378 gd->relocaddr -= (reg << 10); /* size is in kB */ 379 debug("Reserving %ldk for protected RAM at %08lx\n", reg, 380 gd->relocaddr); 381 return 0; 382 } 383 #endif /* CONFIG_PRAM */ 384 385 /* Round memory pointer down to next 4 kB limit */ 386 static int reserve_round_4k(void) 387 { 388 gd->relocaddr &= ~(4096 - 1); 389 return 0; 390 } 391 392 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 393 defined(CONFIG_ARM) 394 static int reserve_mmu(void) 395 { 396 /* reserve TLB table */ 397 gd->arch.tlb_size = PGTABLE_SIZE; 398 gd->relocaddr -= gd->arch.tlb_size; 399 400 /* round down to next 64 kB limit */ 401 gd->relocaddr &= ~(0x10000 - 1); 402 403 gd->arch.tlb_addr = gd->relocaddr; 404 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, 405 gd->arch.tlb_addr + gd->arch.tlb_size); 406 return 0; 407 } 408 #endif 409 410 #ifdef CONFIG_LCD 411 static int reserve_lcd(void) 412 { 413 #ifdef CONFIG_FB_ADDR 414 gd->fb_base = CONFIG_FB_ADDR; 415 #else 416 /* reserve memory for LCD display (always full pages) */ 417 gd->relocaddr = lcd_setmem(gd->relocaddr); 418 gd->fb_base = gd->relocaddr; 419 #endif /* CONFIG_FB_ADDR */ 420 return 0; 421 } 422 #endif /* CONFIG_LCD */ 423 424 static int reserve_trace(void) 425 { 426 #ifdef CONFIG_TRACE 427 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE; 428 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE); 429 debug("Reserving %dk for trace data at: %08lx\n", 430 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr); 431 #endif 432 433 return 0; 434 } 435 436 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \ 437 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \ 438 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K) 439 static int reserve_video(void) 440 { 441 /* reserve memory for video display (always full pages) */ 442 gd->relocaddr = video_setmem(gd->relocaddr); 443 gd->fb_base = gd->relocaddr; 444 445 return 0; 446 } 447 #endif 448 449 static int reserve_uboot(void) 450 { 451 /* 452 * reserve memory for U-Boot code, data & bss 453 * round down to next 4 kB limit 454 */ 455 gd->relocaddr -= gd->mon_len; 456 gd->relocaddr &= ~(4096 - 1); 457 #ifdef CONFIG_E500 458 /* round down to next 64 kB limit so that IVPR stays aligned */ 459 gd->relocaddr &= ~(65536 - 1); 460 #endif 461 462 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, 463 gd->relocaddr); 464 465 gd->start_addr_sp = gd->relocaddr; 466 467 return 0; 468 } 469 470 #ifndef CONFIG_SPL_BUILD 471 /* reserve memory for malloc() area */ 472 static int reserve_malloc(void) 473 { 474 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN; 475 debug("Reserving %dk for malloc() at: %08lx\n", 476 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp); 477 return 0; 478 } 479 480 /* (permanently) allocate a Board Info struct */ 481 static int reserve_board(void) 482 { 483 if (!gd->bd) { 484 gd->start_addr_sp -= sizeof(bd_t); 485 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t)); 486 memset(gd->bd, '\0', sizeof(bd_t)); 487 debug("Reserving %zu Bytes for Board Info at: %08lx\n", 488 sizeof(bd_t), gd->start_addr_sp); 489 } 490 return 0; 491 } 492 #endif 493 494 static int setup_machine(void) 495 { 496 #ifdef CONFIG_MACH_TYPE 497 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */ 498 #endif 499 return 0; 500 } 501 502 static int reserve_global_data(void) 503 { 504 gd->start_addr_sp -= sizeof(gd_t); 505 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t)); 506 debug("Reserving %zu Bytes for Global Data at: %08lx\n", 507 sizeof(gd_t), gd->start_addr_sp); 508 return 0; 509 } 510 511 static int reserve_fdt(void) 512 { 513 /* 514 * If the device tree is sitting immediately above our image then we 515 * must relocate it. If it is embedded in the data section, then it 516 * will be relocated with other data. 517 */ 518 if (gd->fdt_blob) { 519 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32); 520 521 gd->start_addr_sp -= gd->fdt_size; 522 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size); 523 debug("Reserving %lu Bytes for FDT at: %08lx\n", 524 gd->fdt_size, gd->start_addr_sp); 525 } 526 527 return 0; 528 } 529 530 int arch_reserve_stacks(void) 531 { 532 return 0; 533 } 534 535 static int reserve_stacks(void) 536 { 537 /* make stack pointer 16-byte aligned */ 538 gd->start_addr_sp -= 16; 539 gd->start_addr_sp &= ~0xf; 540 541 /* 542 * let the architecture-specific code tailor gd->start_addr_sp and 543 * gd->irq_sp 544 */ 545 return arch_reserve_stacks(); 546 } 547 548 static int display_new_sp(void) 549 { 550 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp); 551 552 return 0; 553 } 554 555 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 556 static int setup_board_part1(void) 557 { 558 bd_t *bd = gd->bd; 559 560 /* 561 * Save local variables to board info struct 562 */ 563 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */ 564 bd->bi_memsize = gd->ram_size; /* size in bytes */ 565 566 #ifdef CONFIG_SYS_SRAM_BASE 567 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */ 568 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */ 569 #endif 570 571 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \ 572 defined(CONFIG_E500) || defined(CONFIG_MPC86xx) 573 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ 574 #endif 575 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K) 576 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ 577 #endif 578 #if defined(CONFIG_MPC83xx) 579 bd->bi_immrbar = CONFIG_SYS_IMMR; 580 #endif 581 582 return 0; 583 } 584 #endif 585 586 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 587 static int setup_board_part2(void) 588 { 589 bd_t *bd = gd->bd; 590 591 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ 592 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ 593 #if defined(CONFIG_CPM2) 594 bd->bi_cpmfreq = gd->arch.cpm_clk; 595 bd->bi_brgfreq = gd->arch.brg_clk; 596 bd->bi_sccfreq = gd->arch.scc_clk; 597 bd->bi_vco = gd->arch.vco_out; 598 #endif /* CONFIG_CPM2 */ 599 #if defined(CONFIG_MPC512X) 600 bd->bi_ipsfreq = gd->arch.ips_clk; 601 #endif /* CONFIG_MPC512X */ 602 #if defined(CONFIG_MPC5xxx) 603 bd->bi_ipbfreq = gd->arch.ipb_clk; 604 bd->bi_pcifreq = gd->pci_clk; 605 #endif /* CONFIG_MPC5xxx */ 606 #if defined(CONFIG_M68K) && defined(CONFIG_PCI) 607 bd->bi_pcifreq = gd->pci_clk; 608 #endif 609 #if defined(CONFIG_EXTRA_CLOCK) 610 bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */ 611 bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */ 612 bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */ 613 #endif 614 615 return 0; 616 } 617 #endif 618 619 #ifdef CONFIG_SYS_EXTBDINFO 620 static int setup_board_extra(void) 621 { 622 bd_t *bd = gd->bd; 623 624 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version)); 625 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION, 626 sizeof(bd->bi_r_version)); 627 628 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ 629 bd->bi_plb_busfreq = gd->bus_clk; 630 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ 631 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ 632 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) 633 bd->bi_pci_busfreq = get_PCI_freq(); 634 bd->bi_opbfreq = get_OPB_freq(); 635 #elif defined(CONFIG_XILINX_405) 636 bd->bi_pci_busfreq = get_PCI_freq(); 637 #endif 638 639 return 0; 640 } 641 #endif 642 643 #ifdef CONFIG_POST 644 static int init_post(void) 645 { 646 post_bootmode_init(); 647 post_run(NULL, POST_ROM | post_bootmode_get(0)); 648 649 return 0; 650 } 651 #endif 652 653 static int setup_dram_config(void) 654 { 655 /* Ram is board specific, so move it to board code ... */ 656 dram_init_banksize(); 657 658 return 0; 659 } 660 661 static int reloc_fdt(void) 662 { 663 if (gd->flags & GD_FLG_SKIP_RELOC) 664 return 0; 665 if (gd->new_fdt) { 666 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size); 667 gd->fdt_blob = gd->new_fdt; 668 } 669 670 return 0; 671 } 672 673 static int setup_reloc(void) 674 { 675 if (gd->flags & GD_FLG_SKIP_RELOC) { 676 debug("Skipping relocation due to flag\n"); 677 return 0; 678 } 679 680 #ifdef CONFIG_SYS_TEXT_BASE 681 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE; 682 #ifdef CONFIG_M68K 683 /* 684 * On all ColdFire arch cpu, monitor code starts always 685 * just after the default vector table location, so at 0x400 686 */ 687 gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400); 688 #endif 689 #endif 690 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t)); 691 692 debug("Relocation Offset is: %08lx\n", gd->reloc_off); 693 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n", 694 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd), 695 gd->start_addr_sp); 696 697 return 0; 698 } 699 700 /* ARM calls relocate_code from its crt0.S */ 701 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) 702 703 static int jump_to_copy(void) 704 { 705 if (gd->flags & GD_FLG_SKIP_RELOC) 706 return 0; 707 /* 708 * x86 is special, but in a nice way. It uses a trampoline which 709 * enables the dcache if possible. 710 * 711 * For now, other archs use relocate_code(), which is implemented 712 * similarly for all archs. When we do generic relocation, hopefully 713 * we can make all archs enable the dcache prior to relocation. 714 */ 715 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 716 /* 717 * SDRAM and console are now initialised. The final stack can now 718 * be setup in SDRAM. Code execution will continue in Flash, but 719 * with the stack in SDRAM and Global Data in temporary memory 720 * (CPU cache) 721 */ 722 arch_setup_gd(gd->new_gd); 723 board_init_f_r_trampoline(gd->start_addr_sp); 724 #else 725 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr); 726 #endif 727 728 return 0; 729 } 730 #endif 731 732 /* Record the board_init_f() bootstage (after arch_cpu_init()) */ 733 static int mark_bootstage(void) 734 { 735 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f"); 736 737 return 0; 738 } 739 740 static int initf_console_record(void) 741 { 742 #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN) 743 return console_record_init(); 744 #else 745 return 0; 746 #endif 747 } 748 749 static int initf_dm(void) 750 { 751 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN) 752 int ret; 753 754 ret = dm_init_and_scan(true); 755 if (ret) 756 return ret; 757 #endif 758 759 return 0; 760 } 761 762 /* Architecture-specific memory reservation */ 763 __weak int reserve_arch(void) 764 { 765 return 0; 766 } 767 768 __weak int arch_cpu_init_dm(void) 769 { 770 return 0; 771 } 772 773 static init_fnc_t init_sequence_f[] = { 774 #ifdef CONFIG_SANDBOX 775 setup_ram_buf, 776 #endif 777 setup_mon_len, 778 #ifdef CONFIG_OF_CONTROL 779 fdtdec_setup, 780 #endif 781 #ifdef CONFIG_TRACE 782 trace_early_init, 783 #endif 784 initf_malloc, 785 initf_console_record, 786 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) 787 /* TODO: can this go into arch_cpu_init()? */ 788 probecpu, 789 #endif 790 #if defined(CONFIG_X86) && defined(CONFIG_HAVE_FSP) 791 x86_fsp_init, 792 #endif 793 arch_cpu_init, /* basic arch cpu dependent setup */ 794 initf_dm, 795 arch_cpu_init_dm, 796 mark_bootstage, /* need timer, go after init dm */ 797 #if defined(CONFIG_BOARD_EARLY_INIT_F) 798 board_early_init_f, 799 #endif 800 /* TODO: can any of this go into arch_cpu_init()? */ 801 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT) 802 get_clocks, /* get CPU and bus clocks (etc.) */ 803 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ 804 && !defined(CONFIG_TQM885D) 805 adjust_sdram_tbs_8xx, 806 #endif 807 /* TODO: can we rename this to timer_init()? */ 808 init_timebase, 809 #endif 810 #if defined(CONFIG_X86) || defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \ 811 defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32) 812 timer_init, /* initialize timer */ 813 #endif 814 #ifdef CONFIG_SYS_ALLOC_DPRAM 815 #if !defined(CONFIG_CPM2) 816 dpram_init, 817 #endif 818 #endif 819 #if defined(CONFIG_BOARD_POSTCLK_INIT) 820 board_postclk_init, 821 #endif 822 #if defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K) 823 get_clocks, 824 #endif 825 env_init, /* initialize environment */ 826 #if defined(CONFIG_8xx_CPUCLK_DEFAULT) 827 /* get CPU and bus clocks according to the environment variable */ 828 get_clocks_866, 829 /* adjust sdram refresh rate according to the new clock */ 830 sdram_adjust_866, 831 init_timebase, 832 #endif 833 init_baud_rate, /* initialze baudrate settings */ 834 serial_init, /* serial communications setup */ 835 console_init_f, /* stage 1 init of console */ 836 #ifdef CONFIG_SANDBOX 837 sandbox_early_getopt_check, 838 #endif 839 #ifdef CONFIG_OF_CONTROL 840 fdtdec_prepare_fdt, 841 #endif 842 display_options, /* say that we are here */ 843 display_text_info, /* show debugging info if required */ 844 #if defined(CONFIG_MPC8260) 845 prt_8260_rsr, 846 prt_8260_clks, 847 #endif /* CONFIG_MPC8260 */ 848 #if defined(CONFIG_MPC83xx) 849 prt_83xx_rsr, 850 #endif 851 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 852 checkcpu, 853 #endif 854 print_cpuinfo, /* display cpu info (and speed) */ 855 #if defined(CONFIG_MPC5xxx) 856 prt_mpc5xxx_clks, 857 #endif /* CONFIG_MPC5xxx */ 858 #if defined(CONFIG_DISPLAY_BOARDINFO) 859 show_board_info, 860 #endif 861 INIT_FUNC_WATCHDOG_INIT 862 #if defined(CONFIG_MISC_INIT_F) 863 misc_init_f, 864 #endif 865 INIT_FUNC_WATCHDOG_RESET 866 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) 867 init_func_i2c, 868 #endif 869 #if defined(CONFIG_HARD_SPI) 870 init_func_spi, 871 #endif 872 announce_dram_init, 873 /* TODO: unify all these dram functions? */ 874 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \ 875 defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) 876 dram_init, /* configure available RAM banks */ 877 #endif 878 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K) 879 init_func_ram, 880 #endif 881 #ifdef CONFIG_POST 882 post_init_f, 883 #endif 884 INIT_FUNC_WATCHDOG_RESET 885 #if defined(CONFIG_SYS_DRAM_TEST) 886 testdram, 887 #endif /* CONFIG_SYS_DRAM_TEST */ 888 INIT_FUNC_WATCHDOG_RESET 889 890 #ifdef CONFIG_POST 891 init_post, 892 #endif 893 INIT_FUNC_WATCHDOG_RESET 894 /* 895 * Now that we have DRAM mapped and working, we can 896 * relocate the code and continue running from DRAM. 897 * 898 * Reserve memory at end of RAM for (top down in that order): 899 * - area that won't get touched by U-Boot and Linux (optional) 900 * - kernel log buffer 901 * - protected RAM 902 * - LCD framebuffer 903 * - monitor code 904 * - board info struct 905 */ 906 setup_dest_addr, 907 #if defined(CONFIG_BLACKFIN) 908 /* Blackfin u-boot monitor should be on top of the ram */ 909 reserve_uboot, 910 #endif 911 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 912 reserve_logbuffer, 913 #endif 914 #ifdef CONFIG_PRAM 915 reserve_pram, 916 #endif 917 reserve_round_4k, 918 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 919 defined(CONFIG_ARM) 920 reserve_mmu, 921 #endif 922 #ifdef CONFIG_LCD 923 reserve_lcd, 924 #endif 925 reserve_trace, 926 /* TODO: Why the dependency on CONFIG_8xx? */ 927 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \ 928 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \ 929 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K) 930 reserve_video, 931 #endif 932 #if !defined(CONFIG_BLACKFIN) 933 reserve_uboot, 934 #endif 935 #ifndef CONFIG_SPL_BUILD 936 reserve_malloc, 937 reserve_board, 938 #endif 939 setup_machine, 940 reserve_global_data, 941 reserve_fdt, 942 reserve_arch, 943 reserve_stacks, 944 setup_dram_config, 945 show_dram_config, 946 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 947 setup_board_part1, 948 #endif 949 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 950 INIT_FUNC_WATCHDOG_RESET 951 setup_board_part2, 952 #endif 953 display_new_sp, 954 #ifdef CONFIG_SYS_EXTBDINFO 955 setup_board_extra, 956 #endif 957 INIT_FUNC_WATCHDOG_RESET 958 reloc_fdt, 959 setup_reloc, 960 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 961 copy_uboot_to_ram, 962 clear_bss, 963 do_elf_reloc_fixups, 964 #endif 965 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) 966 jump_to_copy, 967 #endif 968 NULL, 969 }; 970 971 void board_init_f(ulong boot_flags) 972 { 973 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA 974 /* 975 * For some archtectures, global data is initialized and used before 976 * calling this function. The data should be preserved. For others, 977 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack 978 * here to host global data until relocation. 979 */ 980 gd_t data; 981 982 gd = &data; 983 984 /* 985 * Clear global data before it is accessed at debug print 986 * in initcall_run_list. Otherwise the debug print probably 987 * get the wrong vaule of gd->have_console. 988 */ 989 zero_global_data(); 990 #endif 991 992 gd->flags = boot_flags; 993 gd->have_console = 0; 994 995 if (initcall_run_list(init_sequence_f)) 996 hang(); 997 998 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \ 999 !defined(CONFIG_EFI_APP) 1000 /* NOTREACHED - jump_to_copy() does not return */ 1001 hang(); 1002 #endif 1003 } 1004 1005 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 1006 /* 1007 * For now this code is only used on x86. 1008 * 1009 * init_sequence_f_r is the list of init functions which are run when 1010 * U-Boot is executing from Flash with a semi-limited 'C' environment. 1011 * The following limitations must be considered when implementing an 1012 * '_f_r' function: 1013 * - 'static' variables are read-only 1014 * - Global Data (gd->xxx) is read/write 1015 * 1016 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if 1017 * supported). It _should_, if possible, copy global data to RAM and 1018 * initialise the CPU caches (to speed up the relocation process) 1019 * 1020 * NOTE: At present only x86 uses this route, but it is intended that 1021 * all archs will move to this when generic relocation is implemented. 1022 */ 1023 static init_fnc_t init_sequence_f_r[] = { 1024 init_cache_f_r, 1025 1026 NULL, 1027 }; 1028 1029 void board_init_f_r(void) 1030 { 1031 if (initcall_run_list(init_sequence_f_r)) 1032 hang(); 1033 1034 /* 1035 * U-Boot has been copied into SDRAM, the BSS has been cleared etc. 1036 * Transfer execution from Flash to RAM by calculating the address 1037 * of the in-RAM copy of board_init_r() and calling it 1038 */ 1039 (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr); 1040 1041 /* NOTREACHED - board_init_r() does not return */ 1042 hang(); 1043 } 1044 #endif /* CONFIG_X86 */ 1045