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 <asm/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 #include <asm/relocate.h> 58 #endif 59 #ifdef CONFIG_SANDBOX 60 #include <asm/state.h> 61 #endif 62 #include <dm/root.h> 63 #include <linux/compiler.h> 64 65 /* 66 * Pointer to initial global data area 67 * 68 * Here we initialize it if needed. 69 */ 70 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR 71 #undef XTRN_DECLARE_GLOBAL_DATA_PTR 72 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ 73 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR); 74 #else 75 DECLARE_GLOBAL_DATA_PTR; 76 #endif 77 78 /* 79 * TODO(sjg@chromium.org): IMO this code should be 80 * refactored to a single function, something like: 81 * 82 * void led_set_state(enum led_colour_t colour, int on); 83 */ 84 /************************************************************************ 85 * Coloured LED functionality 86 ************************************************************************ 87 * May be supplied by boards if desired 88 */ 89 __weak void coloured_LED_init(void) {} 90 __weak void red_led_on(void) {} 91 __weak void red_led_off(void) {} 92 __weak void green_led_on(void) {} 93 __weak void green_led_off(void) {} 94 __weak void yellow_led_on(void) {} 95 __weak void yellow_led_off(void) {} 96 __weak void blue_led_on(void) {} 97 __weak void blue_led_off(void) {} 98 99 /* 100 * Why is gd allocated a register? Prior to reloc it might be better to 101 * just pass it around to each function in this file? 102 * 103 * After reloc one could argue that it is hardly used and doesn't need 104 * to be in a register. Or if it is it should perhaps hold pointers to all 105 * global data for all modules, so that post-reloc we can avoid the massive 106 * literal pool we get on ARM. Or perhaps just encourage each module to use 107 * a structure... 108 */ 109 110 /* 111 * Could the CONFIG_SPL_BUILD infection become a flag in gd? 112 */ 113 114 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG) 115 static int init_func_watchdog_init(void) 116 { 117 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \ 118 defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \ 119 defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \ 120 defined(CONFIG_DESIGNWARE_WATCHDOG) || \ 121 defined(CONFIG_IMX_WATCHDOG)) 122 hw_watchdog_init(); 123 puts(" Watchdog enabled\n"); 124 # endif 125 WATCHDOG_RESET(); 126 127 return 0; 128 } 129 130 int init_func_watchdog_reset(void) 131 { 132 WATCHDOG_RESET(); 133 134 return 0; 135 } 136 #endif /* CONFIG_WATCHDOG */ 137 138 __weak void board_add_ram_info(int use_default) 139 { 140 /* please define platform specific board_add_ram_info() */ 141 } 142 143 static int init_baud_rate(void) 144 { 145 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); 146 return 0; 147 } 148 149 static int display_text_info(void) 150 { 151 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP) 152 ulong bss_start, bss_end, text_base; 153 154 bss_start = (ulong)&__bss_start; 155 bss_end = (ulong)&__bss_end; 156 157 #ifdef CONFIG_SYS_TEXT_BASE 158 text_base = CONFIG_SYS_TEXT_BASE; 159 #else 160 text_base = CONFIG_SYS_MONITOR_BASE; 161 #endif 162 163 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n", 164 text_base, bss_start, bss_end); 165 #endif 166 167 #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 #elif defined(CONFIG_SYS_MONITOR_BASE) 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 __weak phys_size_t board_reserve_ram_top(phys_size_t ram_size) 321 { 322 #ifdef CONFIG_SYS_MEM_TOP_HIDE 323 return ram_size - CONFIG_SYS_MEM_TOP_HIDE; 324 #else 325 return ram_size; 326 #endif 327 } 328 329 static int setup_dest_addr(void) 330 { 331 debug("Monitor len: %08lX\n", gd->mon_len); 332 /* 333 * Ram is setup, size stored in gd !! 334 */ 335 debug("Ram size: %08lX\n", (ulong)gd->ram_size); 336 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE 337 /* Reserve memory for secure MMU tables, and/or security monitor */ 338 gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE; 339 /* 340 * Record secure memory location. Need recalcuate if memory splits 341 * into banks, or the ram base is not zero. 342 */ 343 gd->arch.secure_ram = gd->ram_size; 344 #endif 345 /* 346 * Subtract specified amount of memory to hide so that it won't 347 * get "touched" at all by U-Boot. By fixing up gd->ram_size 348 * the Linux kernel should now get passed the now "corrected" 349 * memory size and won't touch it either. This has been used 350 * by arch/powerpc exclusively. Now ARMv8 takes advantage of 351 * thie mechanism. If memory is split into banks, addresses 352 * need to be calculated. 353 */ 354 gd->ram_size = board_reserve_ram_top(gd->ram_size); 355 356 #ifdef CONFIG_SYS_SDRAM_BASE 357 gd->ram_top = CONFIG_SYS_SDRAM_BASE; 358 #endif 359 gd->ram_top += get_effective_memsize(); 360 gd->ram_top = board_get_usable_ram_top(gd->mon_len); 361 gd->relocaddr = gd->ram_top; 362 debug("Ram top: %08lX\n", (ulong)gd->ram_top); 363 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) 364 /* 365 * We need to make sure the location we intend to put secondary core 366 * boot code is reserved and not used by any part of u-boot 367 */ 368 if (gd->relocaddr > determine_mp_bootpg(NULL)) { 369 gd->relocaddr = determine_mp_bootpg(NULL); 370 debug("Reserving MP boot page to %08lx\n", gd->relocaddr); 371 } 372 #endif 373 return 0; 374 } 375 376 #if defined(CONFIG_SPARC) 377 static int reserve_prom(void) 378 { 379 /* defined in arch/sparc/cpu/leon?/prom.c */ 380 extern void *__prom_start_reloc; 381 int size = 8192; /* page table = 2k, prom = 6k */ 382 gd->relocaddr -= size; 383 __prom_start_reloc = map_sysmem(gd->relocaddr + 2048, size - 2048); 384 debug("Reserving %dk for PROM and page table at %08lx\n", size, 385 gd->relocaddr); 386 return 0; 387 } 388 #endif 389 390 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 391 static int reserve_logbuffer(void) 392 { 393 /* reserve kernel log buffer */ 394 gd->relocaddr -= LOGBUFF_RESERVE; 395 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, 396 gd->relocaddr); 397 return 0; 398 } 399 #endif 400 401 #ifdef CONFIG_PRAM 402 /* reserve protected RAM */ 403 static int reserve_pram(void) 404 { 405 ulong reg; 406 407 reg = getenv_ulong("pram", 10, CONFIG_PRAM); 408 gd->relocaddr -= (reg << 10); /* size is in kB */ 409 debug("Reserving %ldk for protected RAM at %08lx\n", reg, 410 gd->relocaddr); 411 return 0; 412 } 413 #endif /* CONFIG_PRAM */ 414 415 /* Round memory pointer down to next 4 kB limit */ 416 static int reserve_round_4k(void) 417 { 418 gd->relocaddr &= ~(4096 - 1); 419 return 0; 420 } 421 422 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 423 defined(CONFIG_ARM) 424 static int reserve_mmu(void) 425 { 426 /* reserve TLB table */ 427 gd->arch.tlb_size = PGTABLE_SIZE; 428 gd->relocaddr -= gd->arch.tlb_size; 429 430 /* round down to next 64 kB limit */ 431 gd->relocaddr &= ~(0x10000 - 1); 432 433 gd->arch.tlb_addr = gd->relocaddr; 434 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, 435 gd->arch.tlb_addr + gd->arch.tlb_size); 436 437 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE 438 /* 439 * Record allocated tlb_addr in case gd->tlb_addr to be overwritten 440 * with location within secure ram. 441 */ 442 gd->arch.tlb_allocated = gd->arch.tlb_addr; 443 #endif 444 445 return 0; 446 } 447 #endif 448 449 #ifdef CONFIG_DM_VIDEO 450 static int reserve_video(void) 451 { 452 ulong addr; 453 int ret; 454 455 addr = gd->relocaddr; 456 ret = video_reserve(&addr); 457 if (ret) 458 return ret; 459 gd->relocaddr = addr; 460 461 return 0; 462 } 463 #else 464 465 # ifdef CONFIG_LCD 466 static int reserve_lcd(void) 467 { 468 # ifdef CONFIG_FB_ADDR 469 gd->fb_base = CONFIG_FB_ADDR; 470 # else 471 /* reserve memory for LCD display (always full pages) */ 472 gd->relocaddr = lcd_setmem(gd->relocaddr); 473 gd->fb_base = gd->relocaddr; 474 # endif /* CONFIG_FB_ADDR */ 475 476 return 0; 477 } 478 # endif /* CONFIG_LCD */ 479 480 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \ 481 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \ 482 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K) 483 static int reserve_legacy_video(void) 484 { 485 /* reserve memory for video display (always full pages) */ 486 gd->relocaddr = video_setmem(gd->relocaddr); 487 gd->fb_base = gd->relocaddr; 488 489 return 0; 490 } 491 # endif 492 #endif /* !CONFIG_DM_VIDEO */ 493 494 static int reserve_trace(void) 495 { 496 #ifdef CONFIG_TRACE 497 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE; 498 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE); 499 debug("Reserving %dk for trace data at: %08lx\n", 500 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr); 501 #endif 502 503 return 0; 504 } 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 if (!gd->bd) { 541 gd->start_addr_sp -= sizeof(bd_t); 542 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t)); 543 memset(gd->bd, '\0', sizeof(bd_t)); 544 debug("Reserving %zu Bytes for Board Info at: %08lx\n", 545 sizeof(bd_t), gd->start_addr_sp); 546 } 547 return 0; 548 } 549 #endif 550 551 static int setup_machine(void) 552 { 553 #ifdef CONFIG_MACH_TYPE 554 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */ 555 #endif 556 return 0; 557 } 558 559 static int reserve_global_data(void) 560 { 561 gd->start_addr_sp -= sizeof(gd_t); 562 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t)); 563 debug("Reserving %zu Bytes for Global Data at: %08lx\n", 564 sizeof(gd_t), gd->start_addr_sp); 565 return 0; 566 } 567 568 static int reserve_fdt(void) 569 { 570 #ifndef CONFIG_OF_EMBED 571 /* 572 * If the device tree is sitting immediately above our image then we 573 * must relocate it. If it is embedded in the data section, then it 574 * will be relocated with other data. 575 */ 576 if (gd->fdt_blob) { 577 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32); 578 579 gd->start_addr_sp -= gd->fdt_size; 580 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size); 581 debug("Reserving %lu Bytes for FDT at: %08lx\n", 582 gd->fdt_size, gd->start_addr_sp); 583 } 584 #endif 585 586 return 0; 587 } 588 589 int arch_reserve_stacks(void) 590 { 591 return 0; 592 } 593 594 static int reserve_stacks(void) 595 { 596 /* make stack pointer 16-byte aligned */ 597 gd->start_addr_sp -= 16; 598 gd->start_addr_sp &= ~0xf; 599 600 /* 601 * let the architecture-specific code tailor gd->start_addr_sp and 602 * gd->irq_sp 603 */ 604 return arch_reserve_stacks(); 605 } 606 607 static int display_new_sp(void) 608 { 609 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp); 610 611 return 0; 612 } 613 614 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 615 static int setup_board_part1(void) 616 { 617 bd_t *bd = gd->bd; 618 619 /* 620 * Save local variables to board info struct 621 */ 622 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */ 623 bd->bi_memsize = gd->ram_size; /* size in bytes */ 624 625 #ifdef CONFIG_SYS_SRAM_BASE 626 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */ 627 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */ 628 #endif 629 630 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \ 631 defined(CONFIG_E500) || defined(CONFIG_MPC86xx) 632 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ 633 #endif 634 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K) 635 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ 636 #endif 637 #if defined(CONFIG_MPC83xx) 638 bd->bi_immrbar = CONFIG_SYS_IMMR; 639 #endif 640 641 return 0; 642 } 643 #endif 644 645 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 646 static int setup_board_part2(void) 647 { 648 bd_t *bd = gd->bd; 649 650 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ 651 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ 652 #if defined(CONFIG_CPM2) 653 bd->bi_cpmfreq = gd->arch.cpm_clk; 654 bd->bi_brgfreq = gd->arch.brg_clk; 655 bd->bi_sccfreq = gd->arch.scc_clk; 656 bd->bi_vco = gd->arch.vco_out; 657 #endif /* CONFIG_CPM2 */ 658 #if defined(CONFIG_MPC512X) 659 bd->bi_ipsfreq = gd->arch.ips_clk; 660 #endif /* CONFIG_MPC512X */ 661 #if defined(CONFIG_MPC5xxx) 662 bd->bi_ipbfreq = gd->arch.ipb_clk; 663 bd->bi_pcifreq = gd->pci_clk; 664 #endif /* CONFIG_MPC5xxx */ 665 #if defined(CONFIG_M68K) && defined(CONFIG_PCI) 666 bd->bi_pcifreq = gd->pci_clk; 667 #endif 668 #if defined(CONFIG_EXTRA_CLOCK) 669 bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */ 670 bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */ 671 bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */ 672 #endif 673 674 return 0; 675 } 676 #endif 677 678 #ifdef CONFIG_SYS_EXTBDINFO 679 static int setup_board_extra(void) 680 { 681 bd_t *bd = gd->bd; 682 683 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version)); 684 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION, 685 sizeof(bd->bi_r_version)); 686 687 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ 688 bd->bi_plb_busfreq = gd->bus_clk; 689 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ 690 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ 691 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) 692 bd->bi_pci_busfreq = get_PCI_freq(); 693 bd->bi_opbfreq = get_OPB_freq(); 694 #elif defined(CONFIG_XILINX_405) 695 bd->bi_pci_busfreq = get_PCI_freq(); 696 #endif 697 698 return 0; 699 } 700 #endif 701 702 #ifdef CONFIG_POST 703 static int init_post(void) 704 { 705 post_bootmode_init(); 706 post_run(NULL, POST_ROM | post_bootmode_get(0)); 707 708 return 0; 709 } 710 #endif 711 712 static int setup_dram_config(void) 713 { 714 /* Ram is board specific, so move it to board code ... */ 715 dram_init_banksize(); 716 717 return 0; 718 } 719 720 static int reloc_fdt(void) 721 { 722 #ifndef CONFIG_OF_EMBED 723 if (gd->flags & GD_FLG_SKIP_RELOC) 724 return 0; 725 if (gd->new_fdt) { 726 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size); 727 gd->fdt_blob = gd->new_fdt; 728 } 729 #endif 730 731 return 0; 732 } 733 734 static int setup_reloc(void) 735 { 736 if (gd->flags & GD_FLG_SKIP_RELOC) { 737 debug("Skipping relocation due to flag\n"); 738 return 0; 739 } 740 741 #ifdef CONFIG_SYS_TEXT_BASE 742 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE; 743 #ifdef CONFIG_M68K 744 /* 745 * On all ColdFire arch cpu, monitor code starts always 746 * just after the default vector table location, so at 0x400 747 */ 748 gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400); 749 #endif 750 #endif 751 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t)); 752 753 debug("Relocation Offset is: %08lx\n", gd->reloc_off); 754 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n", 755 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd), 756 gd->start_addr_sp); 757 758 return 0; 759 } 760 761 /* ARM calls relocate_code from its crt0.S */ 762 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) 763 764 static int jump_to_copy(void) 765 { 766 if (gd->flags & GD_FLG_SKIP_RELOC) 767 return 0; 768 /* 769 * x86 is special, but in a nice way. It uses a trampoline which 770 * enables the dcache if possible. 771 * 772 * For now, other archs use relocate_code(), which is implemented 773 * similarly for all archs. When we do generic relocation, hopefully 774 * we can make all archs enable the dcache prior to relocation. 775 */ 776 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 777 /* 778 * SDRAM and console are now initialised. The final stack can now 779 * be setup in SDRAM. Code execution will continue in Flash, but 780 * with the stack in SDRAM and Global Data in temporary memory 781 * (CPU cache) 782 */ 783 arch_setup_gd(gd->new_gd); 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 int initf_console_record(void) 802 { 803 #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN) 804 return console_record_init(); 805 #else 806 return 0; 807 #endif 808 } 809 810 static int initf_dm(void) 811 { 812 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN) 813 int ret; 814 815 ret = dm_init_and_scan(true); 816 if (ret) 817 return ret; 818 #endif 819 #ifdef CONFIG_TIMER_EARLY 820 ret = dm_timer_init(); 821 if (ret) 822 return ret; 823 #endif 824 825 return 0; 826 } 827 828 /* Architecture-specific memory reservation */ 829 __weak int reserve_arch(void) 830 { 831 return 0; 832 } 833 834 __weak int arch_cpu_init_dm(void) 835 { 836 return 0; 837 } 838 839 static init_fnc_t init_sequence_f[] = { 840 #ifdef CONFIG_SANDBOX 841 setup_ram_buf, 842 #endif 843 setup_mon_len, 844 #ifdef CONFIG_OF_CONTROL 845 fdtdec_setup, 846 #endif 847 #ifdef CONFIG_TRACE 848 trace_early_init, 849 #endif 850 initf_malloc, 851 initf_console_record, 852 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) 853 /* TODO: can this go into arch_cpu_init()? */ 854 probecpu, 855 #endif 856 #if defined(CONFIG_X86) && defined(CONFIG_HAVE_FSP) 857 x86_fsp_init, 858 #endif 859 arch_cpu_init, /* basic arch cpu dependent setup */ 860 initf_dm, 861 arch_cpu_init_dm, 862 mark_bootstage, /* need timer, go after init dm */ 863 #if defined(CONFIG_BOARD_EARLY_INIT_F) 864 board_early_init_f, 865 #endif 866 /* TODO: can any of this go into arch_cpu_init()? */ 867 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT) 868 get_clocks, /* get CPU and bus clocks (etc.) */ 869 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ 870 && !defined(CONFIG_TQM885D) 871 adjust_sdram_tbs_8xx, 872 #endif 873 /* TODO: can we rename this to timer_init()? */ 874 init_timebase, 875 #endif 876 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \ 877 defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32) || \ 878 defined(CONFIG_SPARC) 879 timer_init, /* initialize timer */ 880 #endif 881 #ifdef CONFIG_SYS_ALLOC_DPRAM 882 #if !defined(CONFIG_CPM2) 883 dpram_init, 884 #endif 885 #endif 886 #if defined(CONFIG_BOARD_POSTCLK_INIT) 887 board_postclk_init, 888 #endif 889 #if defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K) 890 get_clocks, 891 #endif 892 env_init, /* initialize environment */ 893 #if defined(CONFIG_8xx_CPUCLK_DEFAULT) 894 /* get CPU and bus clocks according to the environment variable */ 895 get_clocks_866, 896 /* adjust sdram refresh rate according to the new clock */ 897 sdram_adjust_866, 898 init_timebase, 899 #endif 900 init_baud_rate, /* initialze baudrate settings */ 901 serial_init, /* serial communications setup */ 902 console_init_f, /* stage 1 init of console */ 903 #ifdef CONFIG_SANDBOX 904 sandbox_early_getopt_check, 905 #endif 906 #ifdef CONFIG_OF_CONTROL 907 fdtdec_prepare_fdt, 908 #endif 909 display_options, /* say that we are here */ 910 display_text_info, /* show debugging info if required */ 911 #if defined(CONFIG_MPC8260) 912 prt_8260_rsr, 913 prt_8260_clks, 914 #endif /* CONFIG_MPC8260 */ 915 #if defined(CONFIG_MPC83xx) 916 prt_83xx_rsr, 917 #endif 918 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 919 checkcpu, 920 #endif 921 print_cpuinfo, /* display cpu info (and speed) */ 922 #if defined(CONFIG_MPC5xxx) 923 prt_mpc5xxx_clks, 924 #endif /* CONFIG_MPC5xxx */ 925 #if defined(CONFIG_DISPLAY_BOARDINFO) 926 show_board_info, 927 #endif 928 INIT_FUNC_WATCHDOG_INIT 929 #if defined(CONFIG_MISC_INIT_F) 930 misc_init_f, 931 #endif 932 INIT_FUNC_WATCHDOG_RESET 933 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) 934 init_func_i2c, 935 #endif 936 #if defined(CONFIG_HARD_SPI) 937 init_func_spi, 938 #endif 939 announce_dram_init, 940 /* TODO: unify all these dram functions? */ 941 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \ 942 defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) 943 dram_init, /* configure available RAM banks */ 944 #endif 945 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K) 946 init_func_ram, 947 #endif 948 #ifdef CONFIG_POST 949 post_init_f, 950 #endif 951 INIT_FUNC_WATCHDOG_RESET 952 #if defined(CONFIG_SYS_DRAM_TEST) 953 testdram, 954 #endif /* CONFIG_SYS_DRAM_TEST */ 955 INIT_FUNC_WATCHDOG_RESET 956 957 #ifdef CONFIG_POST 958 init_post, 959 #endif 960 INIT_FUNC_WATCHDOG_RESET 961 /* 962 * Now that we have DRAM mapped and working, we can 963 * relocate the code and continue running from DRAM. 964 * 965 * Reserve memory at end of RAM for (top down in that order): 966 * - area that won't get touched by U-Boot and Linux (optional) 967 * - kernel log buffer 968 * - protected RAM 969 * - LCD framebuffer 970 * - monitor code 971 * - board info struct 972 */ 973 setup_dest_addr, 974 #if defined(CONFIG_BLACKFIN) 975 /* Blackfin u-boot monitor should be on top of the ram */ 976 reserve_uboot, 977 #endif 978 #if defined(CONFIG_SPARC) 979 reserve_prom, 980 #endif 981 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 982 reserve_logbuffer, 983 #endif 984 #ifdef CONFIG_PRAM 985 reserve_pram, 986 #endif 987 reserve_round_4k, 988 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 989 defined(CONFIG_ARM) 990 reserve_mmu, 991 #endif 992 #ifdef CONFIG_DM_VIDEO 993 reserve_video, 994 #else 995 # ifdef CONFIG_LCD 996 reserve_lcd, 997 # endif 998 /* TODO: Why the dependency on CONFIG_8xx? */ 999 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \ 1000 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \ 1001 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K) 1002 reserve_legacy_video, 1003 # endif 1004 #endif /* CONFIG_DM_VIDEO */ 1005 reserve_trace, 1006 #if !defined(CONFIG_BLACKFIN) 1007 reserve_uboot, 1008 #endif 1009 #ifndef CONFIG_SPL_BUILD 1010 reserve_malloc, 1011 reserve_board, 1012 #endif 1013 setup_machine, 1014 reserve_global_data, 1015 reserve_fdt, 1016 reserve_arch, 1017 reserve_stacks, 1018 setup_dram_config, 1019 show_dram_config, 1020 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 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_ARM) && !defined(CONFIG_SANDBOX) 1040 jump_to_copy, 1041 #endif 1042 NULL, 1043 }; 1044 1045 void board_init_f(ulong boot_flags) 1046 { 1047 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA 1048 /* 1049 * For some archtectures, global data is initialized and used before 1050 * calling this function. The data should be preserved. For others, 1051 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack 1052 * here to host global data until relocation. 1053 */ 1054 gd_t data; 1055 1056 gd = &data; 1057 1058 /* 1059 * Clear global data before it is accessed at debug print 1060 * in initcall_run_list. Otherwise the debug print probably 1061 * get the wrong vaule of gd->have_console. 1062 */ 1063 zero_global_data(); 1064 #endif 1065 1066 gd->flags = boot_flags; 1067 gd->have_console = 0; 1068 1069 if (initcall_run_list(init_sequence_f)) 1070 hang(); 1071 1072 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \ 1073 !defined(CONFIG_EFI_APP) 1074 /* NOTREACHED - jump_to_copy() does not return */ 1075 hang(); 1076 #endif 1077 } 1078 1079 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 1080 /* 1081 * For now this code is only used on x86. 1082 * 1083 * init_sequence_f_r is the list of init functions which are run when 1084 * U-Boot is executing from Flash with a semi-limited 'C' environment. 1085 * The following limitations must be considered when implementing an 1086 * '_f_r' function: 1087 * - 'static' variables are read-only 1088 * - Global Data (gd->xxx) is read/write 1089 * 1090 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if 1091 * supported). It _should_, if possible, copy global data to RAM and 1092 * initialise the CPU caches (to speed up the relocation process) 1093 * 1094 * NOTE: At present only x86 uses this route, but it is intended that 1095 * all archs will move to this when generic relocation is implemented. 1096 */ 1097 static init_fnc_t init_sequence_f_r[] = { 1098 init_cache_f_r, 1099 1100 NULL, 1101 }; 1102 1103 void board_init_f_r(void) 1104 { 1105 if (initcall_run_list(init_sequence_f_r)) 1106 hang(); 1107 1108 /* 1109 * The pre-relocation drivers may be using memory that has now gone 1110 * away. Mark serial as unavailable - this will fall back to the debug 1111 * UART if available. 1112 */ 1113 gd->flags &= ~GD_FLG_SERIAL_READY; 1114 1115 /* 1116 * U-Boot has been copied into SDRAM, the BSS has been cleared etc. 1117 * Transfer execution from Flash to RAM by calculating the address 1118 * of the in-RAM copy of board_init_r() and calling it 1119 */ 1120 (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr); 1121 1122 /* NOTREACHED - board_init_r() does not return */ 1123 hang(); 1124 } 1125 #endif /* CONFIG_X86 */ 1126