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