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 ulong get_effective_memsize(void) 227 { 228 #ifndef CONFIG_VERY_BIG_RAM 229 return gd->ram_size; 230 #else 231 /* limit stack to what we can reasonable map */ 232 return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ? 233 CONFIG_MAX_MEM_MAPPED : gd->ram_size); 234 #endif 235 } 236 237 void __dram_init_banksize(void) 238 { 239 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE) 240 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 241 gd->bd->bi_dram[0].size = get_effective_memsize(); 242 #endif 243 } 244 245 void dram_init_banksize(void) 246 __attribute__((weak, alias("__dram_init_banksize"))); 247 248 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) 249 static int init_func_i2c(void) 250 { 251 puts("I2C: "); 252 #ifdef CONFIG_SYS_I2C 253 i2c_init_all(); 254 #else 255 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); 256 #endif 257 puts("ready\n"); 258 return 0; 259 } 260 #endif 261 262 #if defined(CONFIG_HARD_SPI) 263 static int init_func_spi(void) 264 { 265 puts("SPI: "); 266 spi_init(); 267 puts("ready\n"); 268 return 0; 269 } 270 #endif 271 272 __maybe_unused 273 static int zero_global_data(void) 274 { 275 memset((void *)gd, '\0', sizeof(gd_t)); 276 277 return 0; 278 } 279 280 static int setup_mon_len(void) 281 { 282 #ifdef CONFIG_SYS_SYM_OFFSETS 283 gd->mon_len = _bss_end_ofs; 284 #elif defined(CONFIG_SANDBOX) 285 gd->mon_len = (ulong)&_end - (ulong)_init; 286 #else 287 /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */ 288 gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE; 289 #endif 290 return 0; 291 } 292 293 __weak int arch_cpu_init(void) 294 { 295 return 0; 296 } 297 298 #ifdef CONFIG_OF_HOSTFILE 299 300 #define CHECK(x) err = (x); if (err) goto failed; 301 302 /* Create an empty device tree blob */ 303 static int make_empty_fdt(void *fdt) 304 { 305 int err; 306 307 CHECK(fdt_create(fdt, 256)); 308 CHECK(fdt_finish_reservemap(fdt)); 309 CHECK(fdt_begin_node(fdt, "")); 310 CHECK(fdt_end_node(fdt)); 311 CHECK(fdt_finish(fdt)); 312 313 return 0; 314 failed: 315 printf("Unable to create empty FDT: %s\n", fdt_strerror(err)); 316 return -EACCES; 317 } 318 319 static int read_fdt_from_file(void) 320 { 321 struct sandbox_state *state = state_get_current(); 322 void *blob; 323 int size; 324 int err; 325 326 blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0); 327 if (!state->fdt_fname) { 328 err = make_empty_fdt(blob); 329 if (!err) 330 goto done; 331 return err; 332 } 333 err = fs_set_blk_dev("host", NULL, FS_TYPE_SANDBOX); 334 if (err) 335 return err; 336 size = fs_read(state->fdt_fname, CONFIG_SYS_FDT_LOAD_ADDR, 0, 0); 337 if (size < 0) 338 return -EIO; 339 340 done: 341 gd->fdt_blob = blob; 342 343 return 0; 344 } 345 #endif 346 347 #ifdef CONFIG_SANDBOX 348 static int setup_ram_buf(void) 349 { 350 gd->arch.ram_buf = os_malloc(CONFIG_SYS_SDRAM_SIZE); 351 assert(gd->arch.ram_buf); 352 gd->ram_size = CONFIG_SYS_SDRAM_SIZE; 353 354 return 0; 355 } 356 #endif 357 358 static int setup_fdt(void) 359 { 360 #ifdef CONFIG_OF_EMBED 361 /* Get a pointer to the FDT */ 362 gd->fdt_blob = _binary_dt_dtb_start; 363 #elif defined CONFIG_OF_SEPARATE 364 /* FDT is at end of image */ 365 # ifdef CONFIG_SYS_SYM_OFFSETS 366 gd->fdt_blob = (void *)(_end_ofs + CONFIG_SYS_TEXT_BASE); 367 # else 368 gd->fdt_blob = (ulong *)&_end; 369 # endif 370 #elif defined(CONFIG_OF_HOSTFILE) 371 if (read_fdt_from_file()) { 372 puts("Failed to read control FDT\n"); 373 return -1; 374 } 375 #endif 376 /* Allow the early environment to override the fdt address */ 377 gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16, 378 (uintptr_t)gd->fdt_blob); 379 return 0; 380 } 381 382 /* Get the top of usable RAM */ 383 __weak ulong board_get_usable_ram_top(ulong total_size) 384 { 385 return gd->ram_top; 386 } 387 388 static int setup_dest_addr(void) 389 { 390 debug("Monitor len: %08lX\n", gd->mon_len); 391 /* 392 * Ram is setup, size stored in gd !! 393 */ 394 debug("Ram size: %08lX\n", (ulong)gd->ram_size); 395 #if defined(CONFIG_SYS_MEM_TOP_HIDE) 396 /* 397 * Subtract specified amount of memory to hide so that it won't 398 * get "touched" at all by U-Boot. By fixing up gd->ram_size 399 * the Linux kernel should now get passed the now "corrected" 400 * memory size and won't touch it either. This should work 401 * for arch/ppc and arch/powerpc. Only Linux board ports in 402 * arch/powerpc with bootwrapper support, that recalculate the 403 * memory size from the SDRAM controller setup will have to 404 * get fixed. 405 */ 406 gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; 407 #endif 408 #ifdef CONFIG_SYS_SDRAM_BASE 409 gd->ram_top = CONFIG_SYS_SDRAM_BASE; 410 #endif 411 gd->ram_top += get_effective_memsize(); 412 gd->ram_top = board_get_usable_ram_top(gd->mon_len); 413 gd->relocaddr = gd->ram_top; 414 debug("Ram top: %08lX\n", (ulong)gd->ram_top); 415 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) 416 /* 417 * We need to make sure the location we intend to put secondary core 418 * boot code is reserved and not used by any part of u-boot 419 */ 420 if (gd->relocaddr > determine_mp_bootpg(NULL)) { 421 gd->relocaddr = determine_mp_bootpg(NULL); 422 debug("Reserving MP boot page to %08lx\n", gd->relocaddr); 423 } 424 #endif 425 return 0; 426 } 427 428 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 429 static int reserve_logbuffer(void) 430 { 431 /* reserve kernel log buffer */ 432 gd->relocaddr -= LOGBUFF_RESERVE; 433 debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, 434 gd->relocaddr); 435 return 0; 436 } 437 #endif 438 439 #ifdef CONFIG_PRAM 440 /* reserve protected RAM */ 441 static int reserve_pram(void) 442 { 443 ulong reg; 444 445 reg = getenv_ulong("pram", 10, CONFIG_PRAM); 446 gd->relocaddr -= (reg << 10); /* size is in kB */ 447 debug("Reserving %ldk for protected RAM at %08lx\n", reg, 448 gd->relocaddr); 449 return 0; 450 } 451 #endif /* CONFIG_PRAM */ 452 453 /* Round memory pointer down to next 4 kB limit */ 454 static int reserve_round_4k(void) 455 { 456 gd->relocaddr &= ~(4096 - 1); 457 return 0; 458 } 459 460 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 461 defined(CONFIG_ARM) 462 static int reserve_mmu(void) 463 { 464 /* reserve TLB table */ 465 gd->arch.tlb_size = 4096 * 4; 466 gd->relocaddr -= gd->arch.tlb_size; 467 468 /* round down to next 64 kB limit */ 469 gd->relocaddr &= ~(0x10000 - 1); 470 471 gd->arch.tlb_addr = gd->relocaddr; 472 debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, 473 gd->arch.tlb_addr + gd->arch.tlb_size); 474 return 0; 475 } 476 #endif 477 478 #ifdef CONFIG_LCD 479 static int reserve_lcd(void) 480 { 481 #ifdef CONFIG_FB_ADDR 482 gd->fb_base = CONFIG_FB_ADDR; 483 #else 484 /* reserve memory for LCD display (always full pages) */ 485 gd->relocaddr = lcd_setmem(gd->relocaddr); 486 gd->fb_base = gd->relocaddr; 487 #endif /* CONFIG_FB_ADDR */ 488 return 0; 489 } 490 #endif /* CONFIG_LCD */ 491 492 static int reserve_trace(void) 493 { 494 #ifdef CONFIG_TRACE 495 gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE; 496 gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE); 497 debug("Reserving %dk for trace data at: %08lx\n", 498 CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr); 499 #endif 500 501 return 0; 502 } 503 504 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ 505 && !defined(CONFIG_ARM) && !defined(CONFIG_X86) 506 static int reserve_video(void) 507 { 508 /* reserve memory for video display (always full pages) */ 509 gd->relocaddr = video_setmem(gd->relocaddr); 510 gd->fb_base = gd->relocaddr; 511 512 return 0; 513 } 514 #endif 515 516 static int reserve_uboot(void) 517 { 518 /* 519 * reserve memory for U-Boot code, data & bss 520 * round down to next 4 kB limit 521 */ 522 gd->relocaddr -= gd->mon_len; 523 gd->relocaddr &= ~(4096 - 1); 524 #ifdef CONFIG_E500 525 /* round down to next 64 kB limit so that IVPR stays aligned */ 526 gd->relocaddr &= ~(65536 - 1); 527 #endif 528 529 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, 530 gd->relocaddr); 531 532 gd->start_addr_sp = gd->relocaddr; 533 534 return 0; 535 } 536 537 #ifndef CONFIG_SPL_BUILD 538 /* reserve memory for malloc() area */ 539 static int reserve_malloc(void) 540 { 541 gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN; 542 debug("Reserving %dk for malloc() at: %08lx\n", 543 TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp); 544 return 0; 545 } 546 547 /* (permanently) allocate a Board Info struct */ 548 static int reserve_board(void) 549 { 550 gd->start_addr_sp -= sizeof(bd_t); 551 gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t)); 552 memset(gd->bd, '\0', sizeof(bd_t)); 553 debug("Reserving %zu Bytes for Board Info at: %08lx\n", 554 sizeof(bd_t), gd->start_addr_sp); 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 /* 579 * If the device tree is sitting immediate above our image then we 580 * must relocate it. If it is embedded in the data section, then it 581 * will be relocated with other data. 582 */ 583 if (gd->fdt_blob) { 584 gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32); 585 586 gd->start_addr_sp -= gd->fdt_size; 587 gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size); 588 debug("Reserving %lu Bytes for FDT at: %08lx\n", 589 gd->fdt_size, gd->start_addr_sp); 590 } 591 592 return 0; 593 } 594 595 static int reserve_stacks(void) 596 { 597 #ifdef CONFIG_SPL_BUILD 598 # ifdef CONFIG_ARM 599 gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */ 600 gd->irq_sp = gd->start_addr_sp; 601 # endif 602 #else 603 # ifdef CONFIG_PPC 604 ulong *s; 605 # endif 606 607 /* setup stack pointer for exceptions */ 608 gd->start_addr_sp -= 16; 609 gd->start_addr_sp &= ~0xf; 610 gd->irq_sp = gd->start_addr_sp; 611 612 /* 613 * Handle architecture-specific things here 614 * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack() 615 * to handle this and put in arch/xxx/lib/stack.c 616 */ 617 # ifdef CONFIG_ARM 618 # ifdef CONFIG_USE_IRQ 619 gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ); 620 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n", 621 CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp); 622 623 /* 8-byte alignment for ARM ABI compliance */ 624 gd->start_addr_sp &= ~0x07; 625 # endif 626 /* leave 3 words for abort-stack, plus 1 for alignment */ 627 gd->start_addr_sp -= 16; 628 # elif defined(CONFIG_PPC) 629 /* Clear initial stack frame */ 630 s = (ulong *) gd->start_addr_sp; 631 *s = 0; /* Terminate back chain */ 632 *++s = 0; /* NULL return address */ 633 # endif /* Architecture specific code */ 634 635 return 0; 636 #endif 637 } 638 639 static int display_new_sp(void) 640 { 641 debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp); 642 643 return 0; 644 } 645 646 #ifdef CONFIG_PPC 647 static int setup_board_part1(void) 648 { 649 bd_t *bd = gd->bd; 650 651 /* 652 * Save local variables to board info struct 653 */ 654 655 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */ 656 bd->bi_memsize = gd->ram_size; /* size in bytes */ 657 658 #ifdef CONFIG_SYS_SRAM_BASE 659 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */ 660 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */ 661 #endif 662 663 #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \ 664 defined(CONFIG_E500) || defined(CONFIG_MPC86xx) 665 bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ 666 #endif 667 #if defined(CONFIG_MPC5xxx) 668 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ 669 #endif 670 #if defined(CONFIG_MPC83xx) 671 bd->bi_immrbar = CONFIG_SYS_IMMR; 672 #endif 673 674 return 0; 675 } 676 677 static int setup_board_part2(void) 678 { 679 bd_t *bd = gd->bd; 680 681 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ 682 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ 683 #if defined(CONFIG_CPM2) 684 bd->bi_cpmfreq = gd->arch.cpm_clk; 685 bd->bi_brgfreq = gd->arch.brg_clk; 686 bd->bi_sccfreq = gd->arch.scc_clk; 687 bd->bi_vco = gd->arch.vco_out; 688 #endif /* CONFIG_CPM2 */ 689 #if defined(CONFIG_MPC512X) 690 bd->bi_ipsfreq = gd->arch.ips_clk; 691 #endif /* CONFIG_MPC512X */ 692 #if defined(CONFIG_MPC5xxx) 693 bd->bi_ipbfreq = gd->arch.ipb_clk; 694 bd->bi_pcifreq = gd->pci_clk; 695 #endif /* CONFIG_MPC5xxx */ 696 697 return 0; 698 } 699 #endif 700 701 #ifdef CONFIG_SYS_EXTBDINFO 702 static int setup_board_extra(void) 703 { 704 bd_t *bd = gd->bd; 705 706 strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version)); 707 strncpy((char *) bd->bi_r_version, U_BOOT_VERSION, 708 sizeof(bd->bi_r_version)); 709 710 bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ 711 bd->bi_plb_busfreq = gd->bus_clk; 712 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ 713 defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ 714 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) 715 bd->bi_pci_busfreq = get_PCI_freq(); 716 bd->bi_opbfreq = get_OPB_freq(); 717 #elif defined(CONFIG_XILINX_405) 718 bd->bi_pci_busfreq = get_PCI_freq(); 719 #endif 720 721 return 0; 722 } 723 #endif 724 725 #ifdef CONFIG_POST 726 static int init_post(void) 727 { 728 post_bootmode_init(); 729 post_run(NULL, POST_ROM | post_bootmode_get(0)); 730 731 return 0; 732 } 733 #endif 734 735 static int setup_baud_rate(void) 736 { 737 /* Ick, can we get rid of this line? */ 738 gd->bd->bi_baudrate = gd->baudrate; 739 740 return 0; 741 } 742 743 static int setup_dram_config(void) 744 { 745 /* Ram is board specific, so move it to board code ... */ 746 dram_init_banksize(); 747 748 return 0; 749 } 750 751 static int reloc_fdt(void) 752 { 753 if (gd->new_fdt) { 754 memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size); 755 gd->fdt_blob = gd->new_fdt; 756 } 757 758 return 0; 759 } 760 761 static int setup_reloc(void) 762 { 763 gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE; 764 memcpy(gd->new_gd, (char *)gd, sizeof(gd_t)); 765 766 debug("Relocation Offset is: %08lx\n", gd->reloc_off); 767 debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n", 768 gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd), 769 gd->start_addr_sp); 770 771 return 0; 772 } 773 774 /* ARM calls relocate_code from its crt0.S */ 775 #if !defined(CONFIG_ARM) 776 777 static int jump_to_copy(void) 778 { 779 /* 780 * x86 is special, but in a nice way. It uses a trampoline which 781 * enables the dcache if possible. 782 * 783 * For now, other archs use relocate_code(), which is implemented 784 * similarly for all archs. When we do generic relocation, hopefully 785 * we can make all archs enable the dcache prior to relocation. 786 */ 787 #ifdef CONFIG_X86 788 /* 789 * SDRAM and console are now initialised. The final stack can now 790 * be setup in SDRAM. Code execution will continue in Flash, but 791 * with the stack in SDRAM and Global Data in temporary memory 792 * (CPU cache) 793 */ 794 board_init_f_r_trampoline(gd->start_addr_sp); 795 #elif defined(CONFIG_SANDBOX) 796 board_init_r(gd->new_gd, 0); 797 #else 798 relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr); 799 #endif 800 801 return 0; 802 } 803 #endif 804 805 /* Record the board_init_f() bootstage (after arch_cpu_init()) */ 806 static int mark_bootstage(void) 807 { 808 bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f"); 809 810 return 0; 811 } 812 813 static init_fnc_t init_sequence_f[] = { 814 #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \ 815 !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \ 816 !defined(CONFIG_MPC86xx) && !defined(CONFIG_X86) 817 zero_global_data, 818 #endif 819 #ifdef CONFIG_SANDBOX 820 setup_ram_buf, 821 #endif 822 setup_mon_len, 823 setup_fdt, 824 trace_early_init, 825 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) 826 /* TODO: can this go into arch_cpu_init()? */ 827 probecpu, 828 #endif 829 arch_cpu_init, /* basic arch cpu dependent setup */ 830 #ifdef CONFIG_X86 831 cpu_init_f, /* TODO(sjg@chromium.org): remove */ 832 # ifdef CONFIG_OF_CONTROL 833 find_fdt, /* TODO(sjg@chromium.org): remove */ 834 # endif 835 #endif 836 mark_bootstage, 837 #ifdef CONFIG_OF_CONTROL 838 fdtdec_check_fdt, 839 #endif 840 #if defined(CONFIG_BOARD_EARLY_INIT_F) 841 board_early_init_f, 842 #endif 843 /* TODO: can any of this go into arch_cpu_init()? */ 844 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT) 845 get_clocks, /* get CPU and bus clocks (etc.) */ 846 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ 847 && !defined(CONFIG_TQM885D) 848 adjust_sdram_tbs_8xx, 849 #endif 850 /* TODO: can we rename this to timer_init()? */ 851 init_timebase, 852 #endif 853 #ifdef CONFIG_ARM 854 timer_init, /* initialize timer */ 855 #endif 856 #ifdef CONFIG_SYS_ALLOC_DPRAM 857 #if !defined(CONFIG_CPM2) 858 dpram_init, 859 #endif 860 #endif 861 #if defined(CONFIG_BOARD_POSTCLK_INIT) 862 board_postclk_init, 863 #endif 864 #ifdef CONFIG_FSL_ESDHC 865 get_clocks, 866 #endif 867 env_init, /* initialize environment */ 868 #if defined(CONFIG_8xx_CPUCLK_DEFAULT) 869 /* get CPU and bus clocks according to the environment variable */ 870 get_clocks_866, 871 /* adjust sdram refresh rate according to the new clock */ 872 sdram_adjust_866, 873 init_timebase, 874 #endif 875 init_baud_rate, /* initialze baudrate settings */ 876 serial_init, /* serial communications setup */ 877 console_init_f, /* stage 1 init of console */ 878 #ifdef CONFIG_SANDBOX 879 sandbox_early_getopt_check, 880 #endif 881 #ifdef CONFIG_OF_CONTROL 882 fdtdec_prepare_fdt, 883 #endif 884 display_options, /* say that we are here */ 885 display_text_info, /* show debugging info if required */ 886 #if defined(CONFIG_8260) 887 prt_8260_rsr, 888 prt_8260_clks, 889 #endif /* CONFIG_8260 */ 890 #if defined(CONFIG_MPC83xx) 891 prt_83xx_rsr, 892 #endif 893 #ifdef CONFIG_PPC 894 checkcpu, 895 #endif 896 #if defined(CONFIG_DISPLAY_CPUINFO) 897 print_cpuinfo, /* display cpu info (and speed) */ 898 #endif 899 #if defined(CONFIG_MPC5xxx) 900 prt_mpc5xxx_clks, 901 #endif /* CONFIG_MPC5xxx */ 902 #if defined(CONFIG_DISPLAY_BOARDINFO) 903 checkboard, /* display board info */ 904 #endif 905 INIT_FUNC_WATCHDOG_INIT 906 #if defined(CONFIG_MISC_INIT_F) 907 misc_init_f, 908 #endif 909 INIT_FUNC_WATCHDOG_RESET 910 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) 911 init_func_i2c, 912 #endif 913 #if defined(CONFIG_HARD_SPI) 914 init_func_spi, 915 #endif 916 #ifdef CONFIG_X86 917 dram_init_f, /* configure available RAM banks */ 918 calculate_relocation_address, 919 #endif 920 announce_dram_init, 921 /* TODO: unify all these dram functions? */ 922 #ifdef CONFIG_ARM 923 dram_init, /* configure available RAM banks */ 924 #endif 925 #ifdef CONFIG_PPC 926 init_func_ram, 927 #endif 928 #ifdef CONFIG_POST 929 post_init_f, 930 #endif 931 INIT_FUNC_WATCHDOG_RESET 932 #if defined(CONFIG_SYS_DRAM_TEST) 933 testdram, 934 #endif /* CONFIG_SYS_DRAM_TEST */ 935 INIT_FUNC_WATCHDOG_RESET 936 937 #ifdef CONFIG_POST 938 init_post, 939 #endif 940 INIT_FUNC_WATCHDOG_RESET 941 /* 942 * Now that we have DRAM mapped and working, we can 943 * relocate the code and continue running from DRAM. 944 * 945 * Reserve memory at end of RAM for (top down in that order): 946 * - area that won't get touched by U-Boot and Linux (optional) 947 * - kernel log buffer 948 * - protected RAM 949 * - LCD framebuffer 950 * - monitor code 951 * - board info struct 952 */ 953 setup_dest_addr, 954 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) 955 reserve_logbuffer, 956 #endif 957 #ifdef CONFIG_PRAM 958 reserve_pram, 959 #endif 960 reserve_round_4k, 961 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ 962 defined(CONFIG_ARM) 963 reserve_mmu, 964 #endif 965 #ifdef CONFIG_LCD 966 reserve_lcd, 967 #endif 968 reserve_trace, 969 /* TODO: Why the dependency on CONFIG_8xx? */ 970 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ 971 && !defined(CONFIG_ARM) && !defined(CONFIG_X86) 972 reserve_video, 973 #endif 974 reserve_uboot, 975 #ifndef CONFIG_SPL_BUILD 976 reserve_malloc, 977 reserve_board, 978 #endif 979 setup_machine, 980 reserve_global_data, 981 reserve_fdt, 982 reserve_stacks, 983 setup_dram_config, 984 show_dram_config, 985 #ifdef CONFIG_PPC 986 setup_board_part1, 987 INIT_FUNC_WATCHDOG_RESET 988 setup_board_part2, 989 #endif 990 setup_baud_rate, 991 display_new_sp, 992 #ifdef CONFIG_SYS_EXTBDINFO 993 setup_board_extra, 994 #endif 995 INIT_FUNC_WATCHDOG_RESET 996 reloc_fdt, 997 setup_reloc, 998 #ifndef CONFIG_ARM 999 jump_to_copy, 1000 #endif 1001 NULL, 1002 }; 1003 1004 void board_init_f(ulong boot_flags) 1005 { 1006 #ifndef CONFIG_X86 1007 gd_t data; 1008 1009 gd = &data; 1010 #endif 1011 1012 gd->flags = boot_flags; 1013 1014 if (initcall_run_list(init_sequence_f)) 1015 hang(); 1016 1017 #ifndef CONFIG_ARM 1018 /* NOTREACHED - jump_to_copy() does not return */ 1019 hang(); 1020 #endif 1021 } 1022 1023 #ifdef CONFIG_X86 1024 /* 1025 * For now this code is only used on x86. 1026 * 1027 * init_sequence_f_r is the list of init functions which are run when 1028 * U-Boot is executing from Flash with a semi-limited 'C' environment. 1029 * The following limitations must be considered when implementing an 1030 * '_f_r' function: 1031 * - 'static' variables are read-only 1032 * - Global Data (gd->xxx) is read/write 1033 * 1034 * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if 1035 * supported). It _should_, if possible, copy global data to RAM and 1036 * initialise the CPU caches (to speed up the relocation process) 1037 * 1038 * NOTE: At present only x86 uses this route, but it is intended that 1039 * all archs will move to this when generic relocation is implemented. 1040 */ 1041 static init_fnc_t init_sequence_f_r[] = { 1042 init_cache_f_r, 1043 copy_uboot_to_ram, 1044 clear_bss, 1045 do_elf_reloc_fixups, 1046 1047 NULL, 1048 }; 1049 1050 void board_init_f_r(void) 1051 { 1052 if (initcall_run_list(init_sequence_f_r)) 1053 hang(); 1054 1055 /* 1056 * U-Boot has been copied into SDRAM, the BSS has been cleared etc. 1057 * Transfer execution from Flash to RAM by calculating the address 1058 * of the in-RAM copy of board_init_r() and calling it 1059 */ 1060 (board_init_r + gd->reloc_off)(gd, gd->relocaddr); 1061 1062 /* NOTREACHED - board_init_r() does not return */ 1063 hang(); 1064 } 1065 #endif /* CONFIG_X86 */ 1066