include/common.h

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