1 /* 2 * (C) Copyright 2000-2009 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __COMMON_H_ 9 #define __COMMON_H_ 1 10 11 #ifndef __ASSEMBLY__ /* put C only stuff in this section */ 12 13 typedef unsigned char uchar; 14 typedef volatile unsigned long vu_long; 15 typedef volatile unsigned short vu_short; 16 typedef volatile unsigned char vu_char; 17 18 /* Allow sharing constants with type modifiers between C and assembly. */ 19 #define _AC(X, Y) (X##Y) 20 21 #include <config.h> 22 #include <errno.h> 23 #include <time.h> 24 #include <asm-offsets.h> 25 #include <linux/bitops.h> 26 #include <linux/bug.h> 27 #include <linux/delay.h> 28 #include <linux/types.h> 29 #include <linux/printk.h> 30 #include <linux/string.h> 31 #include <linux/stringify.h> 32 #include <asm/ptrace.h> 33 #include <stdarg.h> 34 #include <stdio.h> 35 #include <linux/kernel.h> 36 37 #include <part.h> 38 #include <flash.h> 39 #include <image.h> 40 41 /* Bring in printf format macros if inttypes.h is included */ 42 #define __STDC_FORMAT_MACROS 43 44 #ifdef __LP64__ 45 #define CONFIG_SYS_SUPPORT_64BIT_DATA 46 #endif 47 48 #ifdef DEBUG 49 #define _DEBUG 1 50 #else 51 #define _DEBUG 0 52 #endif 53 54 #ifdef CONFIG_SPL_BUILD 55 #define _SPL_BUILD 1 56 #else 57 #define _SPL_BUILD 0 58 #endif 59 60 /* 61 * Output a debug text when condition "cond" is met. The "cond" should be 62 * computed by a preprocessor in the best case, allowing for the best 63 * optimization. 64 */ 65 #define debug_cond(cond, fmt, args...) \ 66 do { \ 67 if (cond) \ 68 printf(pr_fmt(fmt), ##args); \ 69 } while (0) 70 71 /* Show a message if DEBUG is defined in a file */ 72 #define debug(fmt, args...) \ 73 debug_cond(_DEBUG, fmt, ##args) 74 75 /* Show a message if not in SPL */ 76 #define warn_non_spl(fmt, args...) \ 77 debug_cond(!_SPL_BUILD, fmt, ##args) 78 79 /* 80 * An assertion is run-time check done in debug mode only. If DEBUG is not 81 * defined then it is skipped. If DEBUG is defined and the assertion fails, 82 * then it calls panic*( which may or may not reset/halt U-Boot (see 83 * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found 84 * before release, and after release it is hoped that they don't matter. But 85 * in any case these failing assertions cannot be fixed with a reset (which 86 * may just do the same assertion again). 87 */ 88 void __assert_fail(const char *assertion, const char *file, unsigned line, 89 const char *function); 90 #define assert(x) \ 91 ({ if (!(x) && _DEBUG) \ 92 __assert_fail(#x, __FILE__, __LINE__, __func__); }) 93 94 #if (__STDC_VERSION__ >= 201112L) || defined(__cplusplus) 95 # undef static_assert 96 # define static_assert _Static_assert 97 #endif 98 99 #ifndef CONFIG_IRQ 100 typedef void (interrupt_handler_t)(void *); 101 #else 102 typedef void (interrupt_handler_t)(int, void *); 103 #endif 104 105 #include <asm/u-boot.h> /* boot information for Linux kernel */ 106 #include <asm/global_data.h> /* global data used for startup functions */ 107 108 #if defined(CONFIG_ENV_IS_EMBEDDED) 109 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN 110 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \ 111 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \ 112 defined(CONFIG_ENV_IS_IN_NVRAM) 113 #define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE) 114 #else 115 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN 116 #endif 117 118 /* 119 * Function Prototypes 120 */ 121 int dram_init(void); 122 123 /** 124 * dram_init_banksize() - Set up DRAM bank sizes 125 * 126 * This can be implemented by boards to set up the DRAM bank information in 127 * gd->bd->bi_dram(). It is called just before relocation, after dram_init() 128 * is called. 129 * 130 * If this is not provided, a default implementation will try to set up a 131 * single bank. It will do this if CONFIG_NR_DRAM_BANKS and 132 * CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of 133 * CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to 134 * get_effective_memsize(). 135 * 136 * @return 0 if OK, -ve on error 137 */ 138 int dram_init_banksize(void); 139 140 void hang (void) __attribute__ ((noreturn)); 141 142 int timer_init(void); 143 int cpu_init(void); 144 145 #include <display_options.h> 146 147 /* common/main.c */ 148 void main_loop (void); 149 int run_command(const char *cmd, int flag); 150 int run_command_repeatable(const char *cmd, int flag); 151 152 /** 153 * Run a list of commands separated by ; or even \0 154 * 155 * Note that if 'len' is not -1, then the command does not need to be nul 156 * terminated, Memory will be allocated for the command in that case. 157 * 158 * @param cmd List of commands to run, each separated bu semicolon 159 * @param len Length of commands excluding terminator if known (-1 if not) 160 * @param flag Execution flags (CMD_FLAG_...) 161 * @return 0 on success, or != 0 on error. 162 */ 163 int run_command_list(const char *cmd, int len, int flag); 164 165 /* arch/$(ARCH)/lib/board.c */ 166 void board_init_f(ulong); 167 void board_init_r(gd_t *, ulong) __attribute__ ((noreturn)); 168 169 /** 170 * ulong board_init_f_alloc_reserve - allocate reserved area 171 * 172 * This function is called by each architecture very early in the start-up 173 * code to allow the C runtime to reserve space on the stack for writable 174 * 'globals' such as GD and the malloc arena. 175 * 176 * @top: top of the reserve area, growing down. 177 * @return: bottom of reserved area 178 */ 179 ulong board_init_f_alloc_reserve(ulong top); 180 181 /** 182 * board_init_f_init_reserve - initialize the reserved area(s) 183 * 184 * This function is called once the C runtime has allocated the reserved 185 * area on the stack. It must initialize the GD at the base of that area. 186 * 187 * @base: top from which reservation was done 188 */ 189 void board_init_f_init_reserve(ulong base); 190 191 /** 192 * arch_setup_gd() - Set up the global_data pointer 193 * 194 * This pointer is special in some architectures and cannot easily be assigned 195 * to. For example on x86 it is implemented by adding a specific record to its 196 * Global Descriptor Table! So we we provide a function to carry out this task. 197 * For most architectures this can simply be: 198 * 199 * gd = gd_ptr; 200 * 201 * @gd_ptr: Pointer to global data 202 */ 203 void arch_setup_gd(gd_t *gd_ptr); 204 205 int checkboard(void); 206 int show_board_info(void); 207 int checkflash(void); 208 int checkdram(void); 209 int last_stage_init(void); 210 extern ulong monitor_flash_len; 211 int mac_read_from_eeprom(void); 212 extern u8 __dtb_dt_begin[]; /* embedded device tree blob */ 213 int set_cpu_clk_info(void); 214 int mdm_init(void); 215 int print_cpuinfo(void); 216 int update_flash_size(int flash_size); 217 int arch_early_init_r(void); 218 219 /* 220 * setup_board_extra() - Fill in extra details in the bd_t structure 221 * 222 * @return 0 if OK, -ve on error 223 */ 224 int setup_board_extra(void); 225 226 /** 227 * arch_fsp_init() - perform firmware support package init 228 * 229 * Where U-Boot relies on binary blobs to handle part of the system init, this 230 * function can be used to set up the blobs. This is used on some Intel 231 * platforms. 232 */ 233 int arch_fsp_init(void); 234 235 /** 236 * arch_cpu_init_dm() - init CPU after driver model is available 237 * 238 * This is called immediately after driver model is available before 239 * relocation. This is similar to arch_cpu_init() but is able to reference 240 * devices 241 * 242 * @return 0 if OK, -ve on error 243 */ 244 int arch_cpu_init_dm(void); 245 246 /** 247 * Reserve all necessary stacks 248 * 249 * This is used in generic board init sequence in common/board_f.c. Each 250 * architecture could provide this function to tailor the required stacks. 251 * 252 * On entry gd->start_addr_sp is pointing to the suggested top of the stack. 253 * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures 254 * require only this can leave it untouched. 255 * 256 * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective 257 * positions of the stack. The stack pointer(s) will be set to this later. 258 * gd->irq_sp is only required, if the architecture needs it. 259 * 260 * @return 0 if no error 261 */ 262 __weak int arch_reserve_stacks(void); 263 264 /** 265 * Show the DRAM size in a board-specific way 266 * 267 * This is used by boards to display DRAM information in their own way. 268 * 269 * @param size Size of DRAM (which should be displayed along with other info) 270 */ 271 void board_show_dram(phys_size_t size); 272 273 /** 274 * arch_fixup_fdt() - Write arch-specific information to fdt 275 * 276 * Defined in arch/$(ARCH)/lib/bootm-fdt.c 277 * 278 * @blob: FDT blob to write to 279 * @return 0 if ok, or -ve FDT_ERR_... on failure 280 */ 281 int arch_fixup_fdt(void *blob); 282 283 int reserve_mmu(void); 284 /* common/flash.c */ 285 void flash_perror (int); 286 287 /* common/cmd_source.c */ 288 int source (ulong addr, const char *fit_uname); 289 290 extern ulong load_addr; /* Default Load Address */ 291 extern ulong save_addr; /* Default Save Address */ 292 extern ulong save_size; /* Default Save Size */ 293 294 /* common/cmd_net.c */ 295 int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); 296 297 /* common/cmd_fat.c */ 298 int do_fat_fsload(cmd_tbl_t *, int, int, char * const []); 299 300 /* common/cmd_ext2.c */ 301 int do_ext2load(cmd_tbl_t *, int, int, char * const []); 302 303 /* common/cmd_nvedit.c */ 304 int env_init (void); 305 void env_relocate (void); 306 int envmatch (uchar *, int); 307 308 /** 309 * env_get() - Look up the value of an environment variable 310 * 311 * In U-Boot proper this can be called before relocation (which is when the 312 * environment is loaded from storage, i.e. GD_FLG_ENV_READY is 0). In that 313 * case this function calls env_get_f(). 314 * 315 * @varname: Variable to look up 316 * @return value of variable, or NULL if not found 317 */ 318 char *env_get(const char *varname); 319 320 /** 321 * env_get_f() - Look up the value of an environment variable (early) 322 * 323 * This function is called from env_get() if the environment has not been 324 * loaded yet (GD_FLG_ENV_READY flag is 0). Some environment locations will 325 * support reading the value (slowly) and some will not. 326 * 327 * @varname: Variable to look up 328 * @return value of variable, or NULL if not found 329 */ 330 int env_get_f(const char *name, char *buf, unsigned len); 331 332 /** 333 * env_get_ulong() - Return an environment variable as an integer value 334 * 335 * Most U-Boot environment variables store hex values. For those which store 336 * (e.g.) base-10 integers, this function can be used to read the value. 337 * 338 * @name: Variable to look up 339 * @base: Base to use (e.g. 10 for base 10, 2 for binary) 340 * @default_val: Default value to return if no value is found 341 * @return the value found, or @default_val if none 342 */ 343 ulong env_get_ulong(const char *name, int base, ulong default_val); 344 345 /** 346 * env_get_hex() - Return an environment variable as a hex value 347 * 348 * Decode an environment as a hex number (it may or may not have a 0x 349 * prefix). If the environment variable cannot be found, or does not start 350 * with hex digits, the default value is returned. 351 * 352 * @varname: Variable to decode 353 * @default_val: Value to return on error 354 */ 355 ulong env_get_hex(const char *varname, ulong default_val); 356 357 /* 358 * Read an environment variable as a boolean 359 * Return -1 if variable does not exist (default to true) 360 */ 361 int env_get_yesno(const char *var); 362 363 /** 364 * env_set() - set an environment variable 365 * 366 * This sets or deletes the value of an environment variable. For setting the 367 * value the variable is created if it does not already exist. 368 * 369 * @varname: Variable to adjust 370 * @value: Value to set for the variable, or NULL or "" to delete the variable 371 * @return 0 if OK, 1 on error 372 */ 373 int env_set(const char *varname, const char *value); 374 375 /** 376 * env_update() - update sub value of an environment variable 377 * 378 * This add/append/replace the sub value of an environment variable. 379 * 380 * @varname: Variable to adjust 381 * @valude: Value to append/replace 382 * @return 0 if OK, 1 on error 383 */ 384 int env_update(const char *varname, const char *varvalue); 385 386 /** 387 * env_set_ulong() - set an environment variable to an integer 388 * 389 * @varname: Variable to adjust 390 * @value: Value to set for the variable (will be converted to a string) 391 * @return 0 if OK, 1 on error 392 */ 393 int env_set_ulong(const char *varname, ulong value); 394 395 /** 396 * env_set_hex() - set an environment variable to a hex value 397 * 398 * @varname: Variable to adjust 399 * @value: Value to set for the variable (will be converted to a hex string) 400 * @return 0 if OK, 1 on error 401 */ 402 int env_set_hex(const char *varname, ulong value); 403 404 /** 405 * env_set_addr - Set an environment variable to an address in hex 406 * 407 * @varname: Environment variable to set 408 * @addr: Value to set it to 409 * @return 0 if ok, 1 on error 410 */ 411 static inline int env_set_addr(const char *varname, const void *addr) 412 { 413 return env_set_hex(varname, (ulong)addr); 414 } 415 416 #ifdef CONFIG_AUTO_COMPLETE 417 int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf); 418 #endif 419 int get_env_id (void); 420 421 void pci_init (void); 422 void pci_init_board(void); 423 424 #if defined(CONFIG_DTB_RESELECT) 425 int embedded_dtb_select(void); 426 #endif 427 428 int misc_init_f (void); 429 int misc_init_r (void); 430 431 /* common/exports.c */ 432 void jumptable_init(void); 433 434 /* common/kallsysm.c */ 435 const char *symbol_lookup(unsigned long addr, unsigned long *caddr); 436 437 /* common/memsize.c */ 438 long get_ram_size (long *, long); 439 phys_size_t get_effective_memsize(void); 440 441 /* $(BOARD)/$(BOARD).c */ 442 void reset_phy (void); 443 void fdc_hw_init (void); 444 445 /* $(BOARD)/eeprom.c */ 446 #ifdef CONFIG_CMD_EEPROM 447 void eeprom_init (int bus); 448 int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); 449 int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); 450 #else 451 /* 452 * Some EEPROM code is depecated because it used the legacy I2C interface. Add 453 * some macros here so we don't have to touch every one of those uses 454 */ 455 #define eeprom_init(bus) 456 #define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS) 457 #define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS) 458 #endif 459 460 /* 461 * Set this up regardless of board 462 * type, to prevent errors. 463 */ 464 #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) 465 # define CONFIG_SYS_DEF_EEPROM_ADDR 0 466 #else 467 #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) 468 # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR 469 #endif 470 #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */ 471 472 #if defined(CONFIG_SPI) 473 extern void spi_init_f (void); 474 extern void spi_init_r (void); 475 extern ssize_t spi_read (uchar *, int, uchar *, int); 476 extern ssize_t spi_write (uchar *, int, uchar *, int); 477 #endif 478 479 /* $(BOARD)/$(BOARD).c */ 480 int board_early_init_f (void); 481 int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */ 482 int board_late_init (void); 483 int board_postclk_init (void); /* after clocks/timebase, before env/serial */ 484 int board_early_init_r (void); 485 void board_poweroff (void); 486 487 #if defined(CONFIG_SYS_DRAM_TEST) 488 int testdram(void); 489 #endif /* CONFIG_SYS_DRAM_TEST */ 490 491 /* $(CPU)/start.S */ 492 int icache_status (void); 493 void icache_enable (void); 494 void icache_disable(void); 495 int dcache_status (void); 496 void dcache_enable (void); 497 void dcache_disable(void); 498 void mmu_disable(void); 499 #if defined(CONFIG_ARM) 500 void relocate_code(ulong); 501 #else 502 void relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn)); 503 #endif 504 ulong get_endaddr (void); 505 void trap_init (ulong); 506 507 /* $(CPU)/cpu.c */ 508 static inline int cpumask_next(int cpu, unsigned int mask) 509 { 510 for (cpu++; !((1 << cpu) & mask); cpu++) 511 ; 512 513 return cpu; 514 } 515 516 #define for_each_cpu(iter, cpu, num_cpus, mask) \ 517 for (iter = 0, cpu = cpumask_next(-1, mask); \ 518 iter < num_cpus; \ 519 iter++, cpu = cpumask_next(cpu, mask)) \ 520 521 int cpu_numcores (void); 522 int cpu_num_dspcores(void); 523 u32 cpu_mask (void); 524 u32 cpu_dsp_mask(void); 525 int is_core_valid (unsigned int); 526 527 /** 528 * arch_cpu_init() - basic cpu-dependent setup for an architecture 529 * 530 * This is called after early malloc is available. It should handle any 531 * CPU- or SoC- specific init needed to continue the init sequence. See 532 * board_f.c for where it is called. If this is not provided, a default 533 * version (which does nothing) will be used. 534 */ 535 int arch_cpu_init(void); 536 537 void s_init(void); 538 539 int checkcpu (void); 540 int checkicache (void); 541 int checkdcache (void); 542 void upmconfig (unsigned int, unsigned int *, unsigned int); 543 ulong get_tbclk (void); 544 void reset_misc (void); 545 void reset_cpu (ulong addr); 546 void ft_cpu_setup(void *blob, bd_t *bd); 547 void ft_pci_setup(void *blob, bd_t *bd); 548 549 void smp_set_core_boot_addr(unsigned long addr, int corenr); 550 void smp_kick_all_cpus(void); 551 552 /* $(CPU)/serial.c */ 553 int serial_init (void); 554 void serial_setbrg (void); 555 void serial_putc (const char); 556 void serial_putc_raw(const char); 557 void serial_puts (const char *); 558 int serial_getc (void); 559 int serial_tstc (void); 560 561 /* $(CPU)/speed.c */ 562 int get_clocks (void); 563 ulong get_bus_freq (ulong); 564 int get_serial_clock(void); 565 566 int cpu_init_r (void); 567 568 /* $(CPU)/interrupts.c */ 569 int interrupt_init (void); 570 void timer_interrupt (struct pt_regs *); 571 void external_interrupt (struct pt_regs *); 572 void irq_install_handler(int, interrupt_handler_t *, void *); 573 void irq_free_handler (int); 574 void reset_timer (void); 575 576 /* Return value of monotonic microsecond timer */ 577 unsigned long timer_get_us(void); 578 579 void enable_interrupts (void); 580 int disable_interrupts (void); 581 582 /* $(CPU)/.../commproc.c */ 583 int dpram_init (void); 584 uint dpram_base(void); 585 uint dpram_base_align(uint align); 586 uint dpram_alloc(uint size); 587 uint dpram_alloc_align(uint size,uint align); 588 void bootcount_store (ulong); 589 ulong bootcount_load (void); 590 #define BOOTCOUNT_MAGIC 0xB001C041 591 592 /* $(CPU)/.../<eth> */ 593 void mii_init (void); 594 595 /* $(CPU)/.../lcd.c */ 596 ulong lcd_setmem (ulong); 597 598 /* $(CPU)/.../video.c */ 599 ulong video_setmem (ulong); 600 601 /* arch/$(ARCH)/lib/cache.c */ 602 void enable_caches(void); 603 void flush_cache (unsigned long, unsigned long); 604 void flush_dcache_all(void); 605 void flush_dcache_range(unsigned long start, unsigned long stop); 606 void invalidate_dcache_range(unsigned long start, unsigned long stop); 607 void invalidate_dcache_all(void); 608 void invalidate_icache_all(void); 609 610 enum { 611 /* Disable caches (else flush caches but leave them active) */ 612 CBL_DISABLE_CACHES = 1 << 0, 613 CBL_SHOW_BOOTSTAGE_REPORT = 1 << 1, 614 615 CBL_ALL = 3, 616 }; 617 618 /** 619 * Clean up ready for linux 620 * 621 * @param flags Flags to control what is done 622 */ 623 int cleanup_before_linux_select(int flags); 624 625 /* arch/$(ARCH)/lib/ticks.S */ 626 uint64_t get_ticks(void); 627 void wait_ticks (unsigned long); 628 629 /* arch/$(ARCH)/lib/time.c */ 630 ulong usec2ticks (unsigned long usec); 631 ulong ticks2usec (unsigned long ticks); 632 633 /* lib/gunzip.c */ 634 int gzip_parse_header(const unsigned char *src, unsigned long len); 635 int gunzip(void *, int, unsigned char *, unsigned long *); 636 int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp, 637 int stoponerr, int offset); 638 639 /** 640 * gzwrite progress indicators: defined weak to allow board-specific 641 * overrides: 642 * 643 * gzwrite_progress_init called on startup 644 * gzwrite_progress called during decompress/write loop 645 * gzwrite_progress_finish called at end of loop to 646 * indicate success (retcode=0) or failure 647 */ 648 void gzwrite_progress_init(u64 expected_size); 649 650 void gzwrite_progress(int iteration, 651 u64 bytes_written, 652 u64 total_bytes); 653 654 void gzwrite_progress_finish(int retcode, 655 u64 totalwritten, 656 u64 totalsize, 657 u32 expected_crc, 658 u32 calculated_crc); 659 660 /** 661 * decompress and write gzipped image from memory to block device 662 * 663 * @param src compressed image address 664 * @param len compressed image length in bytes 665 * @param dev block device descriptor 666 * @param szwritebuf bytes per write (pad to erase size) 667 * @param startoffs offset in bytes of first write 668 * @param szexpected expected uncompressed length 669 * may be zero to use gzip trailer 670 * for files under 4GiB 671 */ 672 int gzwrite(unsigned char *src, int len, 673 struct blk_desc *dev, 674 unsigned long szwritebuf, 675 u64 startoffs, 676 u64 szexpected); 677 678 /* lib/lz4_wrapper.c */ 679 int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn); 680 681 /* lib/qsort.c */ 682 void qsort(void *base, size_t nmemb, size_t size, 683 int(*compar)(const void *, const void *)); 684 int strcmp_compar(const void *, const void *); 685 686 /* lib/uuid.c */ 687 #include <uuid.h> 688 689 /* lib/vsprintf.c */ 690 #include <vsprintf.h> 691 692 /* lib/strmhz.c */ 693 char * strmhz(char *buf, unsigned long hz); 694 695 /* lib/crc32.c */ 696 #include <u-boot/crc.h> 697 698 /* lib/rand.c */ 699 #define RAND_MAX -1U 700 void srand(unsigned int seed); 701 unsigned int rand(void); 702 unsigned int rand_r(unsigned int *seedp); 703 704 /* 705 * STDIO based functions (can always be used) 706 */ 707 /* serial stuff */ 708 int serial_printf (const char *fmt, ...) 709 __attribute__ ((format (__printf__, 1, 2))); 710 711 /* lib/gzip.c */ 712 int gzip(void *dst, unsigned long *lenp, 713 unsigned char *src, unsigned long srclen); 714 int zzip(void *dst, unsigned long *lenp, unsigned char *src, 715 unsigned long srclen, int stoponerr, 716 int (*func)(unsigned long, unsigned long)); 717 718 /* lib/net_utils.c */ 719 #include <net.h> 720 static inline struct in_addr env_get_ip(char *var) 721 { 722 return string_to_ip(env_get(var)); 723 } 724 725 int pcmcia_init (void); 726 727 #ifdef CONFIG_LED_STATUS 728 # include <status_led.h> 729 #endif 730 731 #include <bootstage.h> 732 733 #ifdef CONFIG_SHOW_ACTIVITY 734 void show_activity(int arg); 735 #endif 736 737 /* Multicore arch functions */ 738 #ifdef CONFIG_MP 739 int cpu_status(int nr); 740 int cpu_reset(int nr); 741 int cpu_disable(int nr); 742 int cpu_release(int nr, int argc, char * const argv[]); 743 #endif 744 745 #else /* __ASSEMBLY__ */ 746 747 /* Drop a C type modifier (like in 3UL) for constants used in assembly. */ 748 #define _AC(X, Y) X 749 750 #endif /* __ASSEMBLY__ */ 751 752 /* Put only stuff here that the assembler can digest */ 753 754 /* Declare an unsigned long constant digestable both by C and an assembler. */ 755 #define UL(x) _AC(x, UL) 756 757 #ifdef CONFIG_POST 758 #define CONFIG_HAS_POST 759 #ifndef CONFIG_POST_ALT_LIST 760 #define CONFIG_POST_STD_LIST 761 #endif 762 #endif 763 764 #ifdef CONFIG_INIT_CRITICAL 765 #error CONFIG_INIT_CRITICAL is deprecated! 766 #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README. 767 #endif 768 769 #define ROUND(a,b) (((a) + (b) - 1) & ~((b) - 1)) 770 771 /* 772 * check_member() - Check the offset of a structure member 773 * 774 * @structure: Name of structure (e.g. global_data) 775 * @member: Name of member (e.g. baudrate) 776 * @offset: Expected offset in bytes 777 */ 778 #define check_member(structure, member, offset) _Static_assert( \ 779 offsetof(struct structure, member) == offset, \ 780 "`struct " #structure "` offset for `" #member "` is not " #offset) 781 782 /* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */ 783 #ifdef CONFIG_EFI_STUB 784 #define ll_boot_init() false 785 #else 786 #define ll_boot_init() true 787 #endif 788 789 /* Pull in stuff for the build system */ 790 #ifdef DO_DEPS_ONLY 791 # include <environment.h> 792 #endif 793 794 #endif /* __COMMON_H_ */ 795