1 /* 2 * Copyright (c) 2011 The Chromium OS Authors. 3 * (C) Copyright 2002-2006 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * 6 * (C) Copyright 2002 7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com> 8 * Marius Groeger <mgroeger@sysgo.de> 9 * 10 * SPDX-License-Identifier: GPL-2.0+ 11 */ 12 13 #include <common.h> 14 #include <linux/compiler.h> 15 #include <version.h> 16 #include <console.h> 17 #include <environment.h> 18 #include <dm.h> 19 #include <fdtdec.h> 20 #include <fs.h> 21 #if defined(CONFIG_CMD_IDE) 22 #include <ide.h> 23 #endif 24 #include <i2c.h> 25 #include <initcall.h> 26 #include <logbuff.h> 27 #include <malloc.h> 28 #include <mapmem.h> 29 30 /* TODO: Can we move these into arch/ headers? */ 31 #ifdef CONFIG_8xx 32 #include <mpc8xx.h> 33 #endif 34 #ifdef CONFIG_5xx 35 #include <mpc5xx.h> 36 #endif 37 #ifdef CONFIG_MPC5xxx 38 #include <mpc5xxx.h> 39 #endif 40 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) 41 #include <asm/mp.h> 42 #endif 43 44 #include <os.h> 45 #include <post.h> 46 #include <spi.h> 47 #include <status_led.h> 48 #include <timer.h> 49 #include <trace.h> 50 #include <video.h> 51 #include <watchdog.h> 52 #include <linux/errno.h> 53 #include <asm/io.h> 54 #include <asm/sections.h> 55 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 56 #include <asm/init_helpers.h> 57 #endif 58 #if defined(CONFIG_X86) || defined(CONFIG_ARC) || defined(CONFIG_XTENSA) 59 #include <asm/relocate.h> 60 #endif 61 #ifdef CONFIG_SANDBOX 62 #include <asm/state.h> 63 #endif 64 #include <dm/root.h> 65 #include <linux/compiler.h> 66 67 /* 68 * Pointer to initial global data area 69 * 70 * Here we initialize it if needed. 71 */ 72 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR 73 #undef XTRN_DECLARE_GLOBAL_DATA_PTR 74 #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ 75 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR); 76 #else 77 DECLARE_GLOBAL_DATA_PTR; 78 #endif 79 80 /* 81 * TODO(sjg@chromium.org): IMO this code should be 82 * refactored to a single function, something like: 83 * 84 * void led_set_state(enum led_colour_t colour, int on); 85 */ 86 /************************************************************************ 87 * Coloured LED functionality 88 ************************************************************************ 89 * May be supplied by boards if desired 90 */ 91 __weak void coloured_LED_init(void) {} 92 __weak void red_led_on(void) {} 93 __weak void red_led_off(void) {} 94 __weak void green_led_on(void) {} 95 __weak void green_led_off(void) {} 96 __weak void yellow_led_on(void) {} 97 __weak void yellow_led_off(void) {} 98 __weak void blue_led_on(void) {} 99 __weak void blue_led_off(void) {} 100 101 /* 102 * Why is gd allocated a register? Prior to reloc it might be better to 103 * just pass it around to each function in this file? 104 * 105 * After reloc one could argue that it is hardly used and doesn't need 106 * to be in a register. Or if it is it should perhaps hold pointers to all 107 * global data for all modules, so that post-reloc we can avoid the massive 108 * literal pool we get on ARM. Or perhaps just encourage each module to use 109 * a structure... 110 */ 111 112 /* 113 * Could the CONFIG_SPL_BUILD infection become a flag in gd? 114 */ 115 116 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG) 117 static int init_func_watchdog_init(void) 118 { 119 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \ 120 defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \ 121 defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \ 122 defined(CONFIG_DESIGNWARE_WATCHDOG) || \ 123 defined(CONFIG_IMX_WATCHDOG)) 124 hw_watchdog_init(); 125 puts(" Watchdog enabled\n"); 126 # endif 127 WATCHDOG_RESET(); 128 129 return 0; 130 } 131 132 int init_func_watchdog_reset(void) 133 { 134 WATCHDOG_RESET(); 135 136 return 0; 137 } 138 #endif /* CONFIG_WATCHDOG */ 139 140 __weak void board_add_ram_info(int use_default) 141 { 142 /* please define platform specific board_add_ram_info() */ 143 } 144 145 static int init_baud_rate(void) 146 { 147 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); 148 return 0; 149 } 150 151 static int display_text_info(void) 152 { 153 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP) 154 ulong bss_start, bss_end, text_base; 155 156 bss_start = (ulong)&__bss_start; 157 bss_end = (ulong)&__bss_end; 158 159 #ifdef CONFIG_SYS_TEXT_BASE 160 text_base = CONFIG_SYS_TEXT_BASE; 161 #else 162 text_base = CONFIG_SYS_MONITOR_BASE; 163 #endif 164 165 debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n", 166 text_base, bss_start, bss_end); 167 #endif 168 169 #ifdef CONFIG_USE_IRQ 170 debug("IRQ Stack: %08lx\n", IRQ_STACK_START); 171 debug("FIQ Stack: %08lx\n", FIQ_STACK_START); 172 #endif 173 174 return 0; 175 } 176 177 static int announce_dram_init(void) 178 { 179 puts("DRAM: "); 180 return 0; 181 } 182 183 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K) 184 static int init_func_ram(void) 185 { 186 #ifdef CONFIG_BOARD_TYPES 187 int board_type = gd->board_type; 188 #else 189 int board_type = 0; /* use dummy arg */ 190 #endif 191 192 gd->ram_size = initdram(board_type); 193 194 if (gd->ram_size > 0) 195 return 0; 196 197 puts("*** failed ***\n"); 198 return 1; 199 } 200 #endif 201 202 static int show_dram_config(void) 203 { 204 unsigned long long size; 205 206 #ifdef CONFIG_NR_DRAM_BANKS 207 int i; 208 209 debug("\nRAM Configuration:\n"); 210 for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 211 size += gd->bd->bi_dram[i].size; 212 debug("Bank #%d: %llx ", i, 213 (unsigned long long)(gd->bd->bi_dram[i].start)); 214 #ifdef DEBUG 215 print_size(gd->bd->bi_dram[i].size, "\n"); 216 #endif 217 } 218 debug("\nDRAM: "); 219 #else 220 size = gd->ram_size; 221 #endif 222 223 print_size(size, ""); 224 board_add_ram_info(0); 225 putc('\n'); 226 227 return 0; 228 } 229 230 __weak void dram_init_banksize(void) 231 { 232 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE) 233 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 234 gd->bd->bi_dram[0].size = get_effective_memsize(); 235 #endif 236 } 237 238 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) 239 static int init_func_i2c(void) 240 { 241 puts("I2C: "); 242 #ifdef CONFIG_SYS_I2C 243 i2c_init_all(); 244 #else 245 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); 246 #endif 247 puts("ready\n"); 248 return 0; 249 } 250 #endif 251 252 #if defined(CONFIG_HARD_SPI) 253 static int init_func_spi(void) 254 { 255 puts("SPI: "); 256 spi_init(); 257 puts("ready\n"); 258 return 0; 259 } 260 #endif 261 262 __maybe_unused 263 static int zero_global_data(void) 264 { 265 memset((void *)gd, '\0', sizeof(gd_t)); 266 267 return 0; 268 } 269 270 static int setup_mon_len(void) 271 { 272 #if defined(__ARM__) || defined(__MICROBLAZE__) 273 gd->mon_len = (ulong)&__bss_end - (ulong)_start; 274 #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP) 275 gd->mon_len = (ulong)&_end - (ulong)_init; 276 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2) || \ 277 defined(CONFIG_XTENSA) 278 gd->mon_len = CONFIG_SYS_MONITOR_LEN; 279 #elif defined(CONFIG_NDS32) 280 gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start); 281 #elif defined(CONFIG_SYS_MONITOR_BASE) 282 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */ 283 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE; 284 #endif 285 return 0; 286 } 287 288 __weak int arch_cpu_init(void) 289 { 290 return 0; 291 } 292 293 __weak int mach_cpu_init(void) 294 { 295 return 0; 296 } 297 298 #ifdef CONFIG_SANDBOX 299 static int setup_ram_buf(void) 300 { 301 struct sandbox_state *state = state_get_current(); 302 303 gd->arch.ram_buf = state->ram_buf; 304 gd->ram_size = state->ram_size; 305 306 return 0; 307 } 308 #endif 309 310 /* Get the top of usable RAM */ 311 __weak ulong board_get_usable_ram_top(ulong total_size) 312 { 313 #ifdef CONFIG_SYS_SDRAM_BASE 314 /* 315 * Detect whether we have so much RAM that it goes past the end of our 316 * 32-bit address space. If so, clip the usable RAM so it doesn't. 317 */ 318 if (gd->ram_top < CONFIG_SYS_SDRAM_BASE) 319 /* 320 * Will wrap back to top of 32-bit space when reservations 321 * are made. 322 */ 323 return 0; 324 #endif 325 return gd->ram_top; 326 } 327 328 __weak phys_size_t board_reserve_ram_top(phys_size_t ram_size) 329 { 330 #ifdef CONFIG_SYS_MEM_TOP_HIDE 331 return ram_size - CONFIG_SYS_MEM_TOP_HIDE; 332 #else 333 return ram_size; 334 #endif 335 } 336 337 static int setup_dest_addr(void) 338 { 339 debug("Monitor len: %08lX\n", gd->mon_len); 340 /* 341 * Ram is setup, size stored in gd !! 342 */ 343 debug("Ram size: %08lX\n", (ulong)gd->ram_size); 344 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE 345 /* Reserve memory for secure MMU tables, and/or security monitor */ 346 gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE; 347 /* 348 * Record secure memory location. Need recalcuate if memory splits 349 * into banks, or the ram base is not zero. 350 */ 351 gd->arch.secure_ram = gd->ram_size; 352 #endif 353 /* 354 * Subtract specified amount of memory to hide so that it won't 355 * get "touched" at all by U-Boot. By fixing up gd->ram_size 356 * the Linux kernel should now get passed the now "corrected" 357 * memory size and won't touch it either. This has been used 358 * by arch/powerpc exclusively. Now ARMv8 takes advantage of 359 * thie mechanism. If memory is split into banks, addresses 360 * need to be calculated. 361 */ 362 gd->ram_size = board_reserve_ram_top(gd->ram_size); 363 364 #ifdef CONFIG_SYS_SDRAM_BASE 365 gd->ram_top = CONFIG_SYS_SDRAM_BASE; 366 #endif 367 gd->ram_top += get_effective_memsize(); 368 gd->ram_top = board_get_usable_ram_top(gd->mon_len); 369 gd->relocaddr = gd->ram_top; 370 debug("Ram top: %08lX\n", (ulong)gd->ram_top); 371 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) 372 /* 373 * We need to make sure the location we intend to put secondary core 374 * boot code is reserved and not used by any part of u-boot 375 */ 376 if (gd->relocaddr > determine_mp_bootpg(NULL)) { 377 gd->relocaddr = determine_mp_bootpg(NULL); 378 debug("Reserving MP boot page to %08lx\n", gd->relocaddr); 379 } 380 #endif 381 return 0; 382 } 383 384 #if defined(CONFIG_SPARC) 385 static int reserve_prom(void) 386 { 387 /* defined in arch/sparc/cpu/leon?/prom.c */ 388 extern void *__prom_start_reloc; 389 int size = 8192; /* page table = 2k, prom = 6k */ 390 gd->relocaddr -= size; 391 __prom_start_reloc = map_sysmem(gd->relocaddr + 2048, size - 2048); 392 debug("Reserving %dk for PROM and page table at %08lx\n", size, 393 gd->relocaddr); 394 return 0; 395 } 396 #endif 397 398 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 399 static int reserve_logbuffer(void) 400 { 401 /* reserve kernel log buffer */ 402 gd->relocaddr -= LOGBUFF_RESERVE; 403 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, 404 gd->relocaddr); 405 return 0; 406 } 407 #endif 408 409 #ifdef CONFIG_PRAM 410 /* reserve protected RAM */ 411 static int reserve_pram(void) 412 { 413 ulong reg; 414 415 reg = getenv_ulong("pram", 10, CONFIG_PRAM); 416 gd->relocaddr -= (reg << 10); /* size is in kB */ 417 debug("Reserving %ldk for protected RAM at %08lx\n", reg, 418 gd->relocaddr); 419 return 0; 420 } 421 #endif /* CONFIG_PRAM */ 422 423 /* Round memory pointer down to next 4 kB limit */ 424 static int reserve_round_4k(void) 425 { 426 gd->relocaddr &= ~(4096 - 1); 427 return 0; 428 } 429 430 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 431 defined(CONFIG_ARM) 432 static int reserve_mmu(void) 433 { 434 /* reserve TLB table */ 435 gd->arch.tlb_size = PGTABLE_SIZE; 436 gd->relocaddr -= gd->arch.tlb_size; 437 438 /* round down to next 64 kB limit */ 439 gd->relocaddr &= ~(0x10000 - 1); 440 441 gd->arch.tlb_addr = gd->relocaddr; 442 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, 443 gd->arch.tlb_addr + gd->arch.tlb_size); 444 445 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE 446 /* 447 * Record allocated tlb_addr in case gd->tlb_addr to be overwritten 448 * with location within secure ram. 449 */ 450 gd->arch.tlb_allocated = gd->arch.tlb_addr; 451 #endif 452 453 return 0; 454 } 455 #endif 456 457 #ifdef CONFIG_DM_VIDEO 458 static int reserve_video(void) 459 { 460 ulong addr; 461 int ret; 462 463 addr = gd->relocaddr; 464 ret = video_reserve(&addr); 465 if (ret) 466 return ret; 467 gd->relocaddr = addr; 468 469 return 0; 470 } 471 #else 472 473 # ifdef CONFIG_LCD 474 static int reserve_lcd(void) 475 { 476 # ifdef CONFIG_FB_ADDR 477 gd->fb_base = CONFIG_FB_ADDR; 478 # else 479 /* reserve memory for LCD display (always full pages) */ 480 gd->relocaddr = lcd_setmem(gd->relocaddr); 481 gd->fb_base = gd->relocaddr; 482 # endif /* CONFIG_FB_ADDR */ 483 484 return 0; 485 } 486 # endif /* CONFIG_LCD */ 487 488 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \ 489 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \ 490 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K) 491 static int reserve_legacy_video(void) 492 { 493 /* reserve memory for video display (always full pages) */ 494 gd->relocaddr = video_setmem(gd->relocaddr); 495 gd->fb_base = gd->relocaddr; 496 497 return 0; 498 } 499 # endif 500 #endif /* !CONFIG_DM_VIDEO */ 501 502 static int reserve_trace(void) 503 { 504 #ifdef CONFIG_TRACE 505 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE; 506 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE); 507 debug("Reserving %dk for trace data at: %08lx\n", 508 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr); 509 #endif 510 511 return 0; 512 } 513 514 static int reserve_uboot(void) 515 { 516 /* 517 * reserve memory for U-Boot code, data & bss 518 * round down to next 4 kB limit 519 */ 520 gd->relocaddr -= gd->mon_len; 521 gd->relocaddr &= ~(4096 - 1); 522 #ifdef CONFIG_E500 523 /* round down to next 64 kB limit so that IVPR stays aligned */ 524 gd->relocaddr &= ~(65536 - 1); 525 #endif 526 527 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, 528 gd->relocaddr); 529 530 gd->start_addr_sp = gd->relocaddr; 531 532 return 0; 533 } 534 535 #ifndef CONFIG_SPL_BUILD 536 /* reserve memory for malloc() area */ 537 static int reserve_malloc(void) 538 { 539 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN; 540 debug("Reserving %dk for malloc() at: %08lx\n", 541 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp); 542 return 0; 543 } 544 545 /* (permanently) allocate a Board Info struct */ 546 static int reserve_board(void) 547 { 548 if (!gd->bd) { 549 gd->start_addr_sp -= sizeof(bd_t); 550 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t)); 551 memset(gd->bd, '\0', sizeof(bd_t)); 552 debug("Reserving %zu Bytes for Board Info at: %08lx\n", 553 sizeof(bd_t), gd->start_addr_sp); 554 } 555 return 0; 556 } 557 #endif 558 559 static int setup_machine(void) 560 { 561 #ifdef CONFIG_MACH_TYPE 562 gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */ 563 #endif 564 return 0; 565 } 566 567 static int reserve_global_data(void) 568 { 569 gd->start_addr_sp -= sizeof(gd_t); 570 gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t)); 571 debug("Reserving %zu Bytes for Global Data at: %08lx\n", 572 sizeof(gd_t), gd->start_addr_sp); 573 return 0; 574 } 575 576 static int reserve_fdt(void) 577 { 578 #ifndef CONFIG_OF_EMBED 579 /* 580 * If the device tree is sitting immediately above our image then we 581 * must relocate it. If it is embedded in the data section, then it 582 * will be relocated with other data. 583 */ 584 if (gd->fdt_blob) { 585 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32); 586 587 gd->start_addr_sp -= gd->fdt_size; 588 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size); 589 debug("Reserving %lu Bytes for FDT at: %08lx\n", 590 gd->fdt_size, gd->start_addr_sp); 591 } 592 #endif 593 594 return 0; 595 } 596 597 int arch_reserve_stacks(void) 598 { 599 return 0; 600 } 601 602 static int reserve_stacks(void) 603 { 604 /* make stack pointer 16-byte aligned */ 605 gd->start_addr_sp -= 16; 606 gd->start_addr_sp &= ~0xf; 607 608 /* 609 * let the architecture-specific code tailor gd->start_addr_sp and 610 * gd->irq_sp 611 */ 612 return arch_reserve_stacks(); 613 } 614 615 static int display_new_sp(void) 616 { 617 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp); 618 619 return 0; 620 } 621 622 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 623 static int setup_board_part1(void) 624 { 625 bd_t *bd = gd->bd; 626 627 /* 628 * Save local variables to board info struct 629 */ 630 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */ 631 bd->bi_memsize = gd->ram_size; /* size in bytes */ 632 633 #ifdef CONFIG_SYS_SRAM_BASE 634 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */ 635 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */ 636 #endif 637 638 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \ 639 defined(CONFIG_E500) || defined(CONFIG_MPC86xx) 640 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ 641 #endif 642 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K) 643 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ 644 #endif 645 #if defined(CONFIG_MPC83xx) 646 bd->bi_immrbar = CONFIG_SYS_IMMR; 647 #endif 648 649 return 0; 650 } 651 #endif 652 653 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 654 static int setup_board_part2(void) 655 { 656 bd_t *bd = gd->bd; 657 658 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ 659 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ 660 #if defined(CONFIG_CPM2) 661 bd->bi_cpmfreq = gd->arch.cpm_clk; 662 bd->bi_brgfreq = gd->arch.brg_clk; 663 bd->bi_sccfreq = gd->arch.scc_clk; 664 bd->bi_vco = gd->arch.vco_out; 665 #endif /* CONFIG_CPM2 */ 666 #if defined(CONFIG_MPC512X) 667 bd->bi_ipsfreq = gd->arch.ips_clk; 668 #endif /* CONFIG_MPC512X */ 669 #if defined(CONFIG_MPC5xxx) 670 bd->bi_ipbfreq = gd->arch.ipb_clk; 671 bd->bi_pcifreq = gd->pci_clk; 672 #endif /* CONFIG_MPC5xxx */ 673 #if defined(CONFIG_M68K) && defined(CONFIG_PCI) 674 bd->bi_pcifreq = gd->pci_clk; 675 #endif 676 #if defined(CONFIG_EXTRA_CLOCK) 677 bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */ 678 bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */ 679 bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */ 680 #endif 681 682 return 0; 683 } 684 #endif 685 686 #ifdef CONFIG_SYS_EXTBDINFO 687 static int setup_board_extra(void) 688 { 689 bd_t *bd = gd->bd; 690 691 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version)); 692 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION, 693 sizeof(bd->bi_r_version)); 694 695 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ 696 bd->bi_plb_busfreq = gd->bus_clk; 697 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ 698 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ 699 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) 700 bd->bi_pci_busfreq = get_PCI_freq(); 701 bd->bi_opbfreq = get_OPB_freq(); 702 #elif defined(CONFIG_XILINX_405) 703 bd->bi_pci_busfreq = get_PCI_freq(); 704 #endif 705 706 return 0; 707 } 708 #endif 709 710 #ifdef CONFIG_POST 711 static int init_post(void) 712 { 713 post_bootmode_init(); 714 post_run(NULL, POST_ROM | post_bootmode_get(0)); 715 716 return 0; 717 } 718 #endif 719 720 static int setup_dram_config(void) 721 { 722 /* Ram is board specific, so move it to board code ... */ 723 dram_init_banksize(); 724 725 return 0; 726 } 727 728 static int reloc_fdt(void) 729 { 730 #ifndef CONFIG_OF_EMBED 731 if (gd->flags & GD_FLG_SKIP_RELOC) 732 return 0; 733 if (gd->new_fdt) { 734 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size); 735 gd->fdt_blob = gd->new_fdt; 736 } 737 #endif 738 739 return 0; 740 } 741 742 static int setup_reloc(void) 743 { 744 if (gd->flags & GD_FLG_SKIP_RELOC) { 745 debug("Skipping relocation due to flag\n"); 746 return 0; 747 } 748 749 #ifdef CONFIG_SYS_TEXT_BASE 750 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE; 751 #ifdef CONFIG_M68K 752 /* 753 * On all ColdFire arch cpu, monitor code starts always 754 * just after the default vector table location, so at 0x400 755 */ 756 gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400); 757 #endif 758 #endif 759 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t)); 760 761 debug("Relocation Offset is: %08lx\n", gd->reloc_off); 762 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n", 763 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd), 764 gd->start_addr_sp); 765 766 return 0; 767 } 768 769 /* ARM calls relocate_code from its crt0.S */ 770 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) 771 772 static int jump_to_copy(void) 773 { 774 if (gd->flags & GD_FLG_SKIP_RELOC) 775 return 0; 776 /* 777 * x86 is special, but in a nice way. It uses a trampoline which 778 * enables the dcache if possible. 779 * 780 * For now, other archs use relocate_code(), which is implemented 781 * similarly for all archs. When we do generic relocation, hopefully 782 * we can make all archs enable the dcache prior to relocation. 783 */ 784 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 785 /* 786 * SDRAM and console are now initialised. The final stack can now 787 * be setup in SDRAM. Code execution will continue in Flash, but 788 * with the stack in SDRAM and Global Data in temporary memory 789 * (CPU cache) 790 */ 791 arch_setup_gd(gd->new_gd); 792 board_init_f_r_trampoline(gd->start_addr_sp); 793 #else 794 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr); 795 #endif 796 797 return 0; 798 } 799 #endif 800 801 /* Record the board_init_f() bootstage (after arch_cpu_init()) */ 802 static int mark_bootstage(void) 803 { 804 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f"); 805 806 return 0; 807 } 808 809 static int initf_console_record(void) 810 { 811 #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN) 812 return console_record_init(); 813 #else 814 return 0; 815 #endif 816 } 817 818 static int initf_dm(void) 819 { 820 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN) 821 int ret; 822 823 ret = dm_init_and_scan(true); 824 if (ret) 825 return ret; 826 #endif 827 #ifdef CONFIG_TIMER_EARLY 828 ret = dm_timer_init(); 829 if (ret) 830 return ret; 831 #endif 832 833 return 0; 834 } 835 836 /* Architecture-specific memory reservation */ 837 __weak int reserve_arch(void) 838 { 839 return 0; 840 } 841 842 __weak int arch_cpu_init_dm(void) 843 { 844 return 0; 845 } 846 847 static init_fnc_t init_sequence_f[] = { 848 #ifdef CONFIG_SANDBOX 849 setup_ram_buf, 850 #endif 851 setup_mon_len, 852 #ifdef CONFIG_OF_CONTROL 853 fdtdec_setup, 854 #endif 855 #ifdef CONFIG_TRACE 856 trace_early_init, 857 #endif 858 initf_malloc, 859 initf_console_record, 860 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) 861 /* TODO: can this go into arch_cpu_init()? */ 862 probecpu, 863 #endif 864 #if defined(CONFIG_X86) && defined(CONFIG_HAVE_FSP) 865 x86_fsp_init, 866 #endif 867 arch_cpu_init, /* basic arch cpu dependent setup */ 868 mach_cpu_init, /* SoC/machine dependent CPU setup */ 869 initf_dm, 870 arch_cpu_init_dm, 871 mark_bootstage, /* need timer, go after init dm */ 872 #if defined(CONFIG_BOARD_EARLY_INIT_F) 873 board_early_init_f, 874 #endif 875 /* TODO: can any of this go into arch_cpu_init()? */ 876 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT) 877 get_clocks, /* get CPU and bus clocks (etc.) */ 878 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ 879 && !defined(CONFIG_TQM885D) 880 adjust_sdram_tbs_8xx, 881 #endif 882 /* TODO: can we rename this to timer_init()? */ 883 init_timebase, 884 #endif 885 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \ 886 defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32) || \ 887 defined(CONFIG_SPARC) 888 timer_init, /* initialize timer */ 889 #endif 890 #ifdef CONFIG_SYS_ALLOC_DPRAM 891 #if !defined(CONFIG_CPM2) 892 dpram_init, 893 #endif 894 #endif 895 #if defined(CONFIG_BOARD_POSTCLK_INIT) 896 board_postclk_init, 897 #endif 898 #if defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K) 899 get_clocks, 900 #endif 901 env_init, /* initialize environment */ 902 #if defined(CONFIG_8xx_CPUCLK_DEFAULT) 903 /* get CPU and bus clocks according to the environment variable */ 904 get_clocks_866, 905 /* adjust sdram refresh rate according to the new clock */ 906 sdram_adjust_866, 907 init_timebase, 908 #endif 909 init_baud_rate, /* initialze baudrate settings */ 910 serial_init, /* serial communications setup */ 911 console_init_f, /* stage 1 init of console */ 912 #ifdef CONFIG_SANDBOX 913 sandbox_early_getopt_check, 914 #endif 915 #ifdef CONFIG_OF_CONTROL 916 fdtdec_prepare_fdt, 917 #endif 918 display_options, /* say that we are here */ 919 display_text_info, /* show debugging info if required */ 920 #if defined(CONFIG_MPC8260) 921 prt_8260_rsr, 922 prt_8260_clks, 923 #endif /* CONFIG_MPC8260 */ 924 #if defined(CONFIG_MPC83xx) 925 prt_83xx_rsr, 926 #endif 927 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 928 checkcpu, 929 #endif 930 print_cpuinfo, /* display cpu info (and speed) */ 931 #if defined(CONFIG_MPC5xxx) 932 prt_mpc5xxx_clks, 933 #endif /* CONFIG_MPC5xxx */ 934 #if defined(CONFIG_DISPLAY_BOARDINFO) 935 show_board_info, 936 #endif 937 INIT_FUNC_WATCHDOG_INIT 938 #if defined(CONFIG_MISC_INIT_F) 939 misc_init_f, 940 #endif 941 INIT_FUNC_WATCHDOG_RESET 942 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) 943 init_func_i2c, 944 #endif 945 #if defined(CONFIG_HARD_SPI) 946 init_func_spi, 947 #endif 948 announce_dram_init, 949 /* TODO: unify all these dram functions? */ 950 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \ 951 defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) 952 dram_init, /* configure available RAM banks */ 953 #endif 954 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K) 955 init_func_ram, 956 #endif 957 #ifdef CONFIG_POST 958 post_init_f, 959 #endif 960 INIT_FUNC_WATCHDOG_RESET 961 #if defined(CONFIG_SYS_DRAM_TEST) 962 testdram, 963 #endif /* CONFIG_SYS_DRAM_TEST */ 964 INIT_FUNC_WATCHDOG_RESET 965 966 #ifdef CONFIG_POST 967 init_post, 968 #endif 969 INIT_FUNC_WATCHDOG_RESET 970 /* 971 * Now that we have DRAM mapped and working, we can 972 * relocate the code and continue running from DRAM. 973 * 974 * Reserve memory at end of RAM for (top down in that order): 975 * - area that won't get touched by U-Boot and Linux (optional) 976 * - kernel log buffer 977 * - protected RAM 978 * - LCD framebuffer 979 * - monitor code 980 * - board info struct 981 */ 982 setup_dest_addr, 983 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_XTENSA) 984 /* Blackfin u-boot monitor should be on top of the ram */ 985 reserve_uboot, 986 #endif 987 #if defined(CONFIG_SPARC) 988 reserve_prom, 989 #endif 990 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 991 reserve_logbuffer, 992 #endif 993 #ifdef CONFIG_PRAM 994 reserve_pram, 995 #endif 996 reserve_round_4k, 997 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 998 defined(CONFIG_ARM) 999 reserve_mmu, 1000 #endif 1001 #ifdef CONFIG_DM_VIDEO 1002 reserve_video, 1003 #else 1004 # ifdef CONFIG_LCD 1005 reserve_lcd, 1006 # endif 1007 /* TODO: Why the dependency on CONFIG_8xx? */ 1008 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \ 1009 !defined(CONFIG_ARM) && !defined(CONFIG_X86) && \ 1010 !defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K) 1011 reserve_legacy_video, 1012 # endif 1013 #endif /* CONFIG_DM_VIDEO */ 1014 reserve_trace, 1015 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_XTENSA) 1016 reserve_uboot, 1017 #endif 1018 #ifndef CONFIG_SPL_BUILD 1019 reserve_malloc, 1020 reserve_board, 1021 #endif 1022 setup_machine, 1023 reserve_global_data, 1024 reserve_fdt, 1025 reserve_arch, 1026 reserve_stacks, 1027 setup_dram_config, 1028 show_dram_config, 1029 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) 1030 setup_board_part1, 1031 #endif 1032 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) 1033 INIT_FUNC_WATCHDOG_RESET 1034 setup_board_part2, 1035 #endif 1036 display_new_sp, 1037 #ifdef CONFIG_SYS_EXTBDINFO 1038 setup_board_extra, 1039 #endif 1040 INIT_FUNC_WATCHDOG_RESET 1041 reloc_fdt, 1042 setup_reloc, 1043 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 1044 copy_uboot_to_ram, 1045 clear_bss, 1046 do_elf_reloc_fixups, 1047 #endif 1048 #if defined(CONFIG_XTENSA) 1049 clear_bss, 1050 #endif 1051 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) 1052 jump_to_copy, 1053 #endif 1054 NULL, 1055 }; 1056 1057 void board_init_f(ulong boot_flags) 1058 { 1059 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA 1060 /* 1061 * For some architectures, global data is initialized and used before 1062 * calling this function. The data should be preserved. For others, 1063 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack 1064 * here to host global data until relocation. 1065 */ 1066 gd_t data; 1067 1068 gd = &data; 1069 1070 /* 1071 * Clear global data before it is accessed at debug print 1072 * in initcall_run_list. Otherwise the debug print probably 1073 * get the wrong value of gd->have_console. 1074 */ 1075 zero_global_data(); 1076 #endif 1077 1078 gd->flags = boot_flags; 1079 gd->have_console = 0; 1080 1081 if (initcall_run_list(init_sequence_f)) 1082 hang(); 1083 1084 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \ 1085 !defined(CONFIG_EFI_APP) 1086 /* NOTREACHED - jump_to_copy() does not return */ 1087 hang(); 1088 #endif 1089 } 1090 1091 #if defined(CONFIG_X86) || defined(CONFIG_ARC) 1092 /* 1093 * For now this code is only used on x86. 1094 * 1095 * init_sequence_f_r is the list of init functions which are run when 1096 * U-Boot is executing from Flash with a semi-limited 'C' environment. 1097 * The following limitations must be considered when implementing an 1098 * '_f_r' function: 1099 * - 'static' variables are read-only 1100 * - Global Data (gd->xxx) is read/write 1101 * 1102 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if 1103 * supported). It _should_, if possible, copy global data to RAM and 1104 * initialise the CPU caches (to speed up the relocation process) 1105 * 1106 * NOTE: At present only x86 uses this route, but it is intended that 1107 * all archs will move to this when generic relocation is implemented. 1108 */ 1109 static init_fnc_t init_sequence_f_r[] = { 1110 init_cache_f_r, 1111 1112 NULL, 1113 }; 1114 1115 void board_init_f_r(void) 1116 { 1117 if (initcall_run_list(init_sequence_f_r)) 1118 hang(); 1119 1120 /* 1121 * The pre-relocation drivers may be using memory that has now gone 1122 * away. Mark serial as unavailable - this will fall back to the debug 1123 * UART if available. 1124 */ 1125 gd->flags &= ~GD_FLG_SERIAL_READY; 1126 1127 /* 1128 * U-Boot has been copied into SDRAM, the BSS has been cleared etc. 1129 * Transfer execution from Flash to RAM by calculating the address 1130 * of the in-RAM copy of board_init_r() and calling it 1131 */ 1132 (board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr); 1133 1134 /* NOTREACHED - board_init_r() does not return */ 1135 hang(); 1136 } 1137 #endif /* CONFIG_X86 */ 1138