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