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 #include <config.h>
  19 #include <asm-offsets.h>
  20 #include <linux/bitops.h>
  21 #include <linux/types.h>
  22 #include <linux/string.h>
  23 #include <linux/stringify.h>
  24 #include <asm/ptrace.h>
  25 #include <stdarg.h>
  26 #if defined(CONFIG_PCI) && defined(CONFIG_4xx)
  27 #include <pci.h>
  28 #endif
  29 #if defined(CONFIG_8xx)
  30 #include <asm/8xx_immap.h>
  31 #if defined(CONFIG_MPC859)      || defined(CONFIG_MPC859T)      || \
  32     defined(CONFIG_MPC866)      || \
  33     defined(CONFIG_MPC866P)
  34 # define CONFIG_MPC866_FAMILY 1
  35 #elif defined(CONFIG_MPC885)
  36 # define CONFIG_MPC885_FAMILY   1
  37 #endif
  38 #if   defined(CONFIG_MPC860)       \
  39    || defined(CONFIG_MPC860T)      \
  40    || defined(CONFIG_MPC866_FAMILY) \
  41    || defined(CONFIG_MPC885_FAMILY)
  42 # define CONFIG_MPC86x 1
  43 #endif
  44 #elif defined(CONFIG_5xx)
  45 #include <asm/5xx_immap.h>
  46 #elif defined(CONFIG_MPC5xxx)
  47 #include <mpc5xxx.h>
  48 #elif defined(CONFIG_MPC512X)
  49 #include <asm/immap_512x.h>
  50 #elif defined(CONFIG_MPC8260)
  51 #if   defined(CONFIG_MPC8247) \
  52    || defined(CONFIG_MPC8272)
  53 #define CONFIG_MPC8272_FAMILY   1
  54 #endif
  55 #include <asm/immap_8260.h>
  56 #endif
  57 #ifdef CONFIG_MPC86xx
  58 #include <mpc86xx.h>
  59 #include <asm/immap_86xx.h>
  60 #endif
  61 #ifdef CONFIG_MPC85xx
  62 #include <mpc85xx.h>
  63 #include <asm/immap_85xx.h>
  64 #endif
  65 #ifdef CONFIG_MPC83xx
  66 #include <mpc83xx.h>
  67 #include <asm/immap_83xx.h>
  68 #endif
  69 #ifdef  CONFIG_4xx
  70 #include <asm/ppc4xx.h>
  71 #endif
  72 #ifdef CONFIG_HYMOD
  73 #include <board/hymod/hymod.h>
  74 #endif
  75 #ifdef CONFIG_ARM
  76 #define asmlinkage      /* nothing */
  77 #endif
  78 #ifdef CONFIG_BLACKFIN
  79 #include <asm/blackfin.h>
  80 #endif
  81 #ifdef CONFIG_SOC_DA8XX
  82 #include <asm/arch/hardware.h>
  83 #endif
  84
  85 #include <part.h>
  86 #include <flash.h>
  87 #include <image.h>
  88
  89 #ifdef __LP64__
  90 #define CONFIG_SYS_SUPPORT_64BIT_DATA
  91 #endif
  92
  93 #ifdef DEBUG
  94 #define _DEBUG  1
  95 #else
  96 #define _DEBUG  0
  97 #endif
  98
  99 /*
 100  * Output a debug text when condition "cond" is met. The "cond" should be
 101  * computed by a preprocessor in the best case, allowing for the best
 102  * optimization.
 103  */
 104 #define debug_cond(cond, fmt, args...)          \
 105         do {                                    \
 106                 if (cond)                       \
 107                         printf(fmt, ##args);    \
 108         } while (0)
 109
 110 #define debug(fmt, args...)                     \
 111         debug_cond(_DEBUG, fmt, ##args)
 112
 113 /*
 114  * An assertion is run-time check done in debug mode only. If DEBUG is not
 115  * defined then it is skipped. If DEBUG is defined and the assertion fails,
 116  * then it calls panic*( which may or may not reset/halt U-Boot (see
 117  * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found
 118  * before release, and after release it is hoped that they don't matter. But
 119  * in any case these failing assertions cannot be fixed with a reset (which
 120  * may just do the same assertion again).
 121  */
 122 void __assert_fail(const char *assertion, const char *file, unsigned line,
 123                    const char *function);
 124 #define assert(x) \
 125         ({ if (!(x) && _DEBUG) \
 126                 __assert_fail(#x, __FILE__, __LINE__, __func__); })
 127
 128 #define error(fmt, args...) do {                                        \
 129                 printf("ERROR: " fmt "\nat %s:%d/%s()\n",               \
 130                         ##args, __FILE__, __LINE__, __func__);          \
 131 } while (0)
 132
 133 #ifndef BUG
 134 #define BUG() do { \
 135         printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
 136         panic("BUG!"); \
 137 } while (0)
 138 #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
 139 #endif /* BUG */
 140
 141 /* Force a compilation error if condition is true */
 142 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 143
 144 typedef void (interrupt_handler_t)(void *);
 145
 146 #include <asm/u-boot.h> /* boot information for Linux kernel */
 147 #include <asm/global_data.h>    /* global data used for startup functions */
 148
 149 /*
 150  * enable common handling for all TQM8xxL/M boards:
 151  * - CONFIG_TQM8xxM will be defined for all TQM8xxM boards
 152  * - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards
 153  *                  and for the TQM885D board
 154  */
 155 #if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \
 156     defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \
 157     defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M)
 158 # ifndef CONFIG_TQM8xxM
 159 #  define CONFIG_TQM8xxM
 160 # endif
 161 #endif
 162 #if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \
 163     defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \
 164     defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM) || \
 165     defined(CONFIG_TQM885D)
 166 # ifndef CONFIG_TQM8xxL
 167 #  define CONFIG_TQM8xxL
 168 # endif
 169 #endif
 170
 171 /*
 172  * General Purpose Utilities
 173  */
 174 #define min(X, Y)                               \
 175         ({ typeof(X) __x = (X);                 \
 176                 typeof(Y) __y = (Y);            \
 177                 (__x < __y) ? __x : __y; })
 178
 179 #define max(X, Y)                               \
 180         ({ typeof(X) __x = (X);                 \
 181                 typeof(Y) __y = (Y);            \
 182                 (__x > __y) ? __x : __y; })
 183
 184 #define MIN(x, y)  min(x, y)
 185 #define MAX(x, y)  max(x, y)
 186
 187 #define min3(X, Y, Z)                           \
 188         ({ typeof(X) __x = (X);                 \
 189                 typeof(Y) __y = (Y);            \
 190                 typeof(Z) __z = (Z);            \
 191                 __x < __y ? (__x < __z ? __x : __z) :   \
 192                 (__y < __z ? __y : __z); })
 193
 194 #define max3(X, Y, Z)                           \
 195         ({ typeof(X) __x = (X);                 \
 196                 typeof(Y) __y = (Y);            \
 197                 typeof(Z) __z = (Z);            \
 198                 __x > __y ? (__x > __z ? __x : __z) :   \
 199                 (__y > __z ? __y : __z); })
 200
 201 #define MIN3(x, y, z)  min3(x, y, z)
 202 #define MAX3(x, y, z)  max3(x, y, z)
 203
 204 /*
 205  * Return the absolute value of a number.
 206  *
 207  * This handles unsigned and signed longs, ints, shorts and chars.  For all
 208  * input types abs() returns a signed long.
 209  *
 210  * For 64-bit types, use abs64()
 211  */
 212 #define abs(x) ({                                               \
 213                 long ret;                                       \
 214                 if (sizeof(x) == sizeof(long)) {                \
 215                         long __x = (x);                         \
 216                         ret = (__x < 0) ? -__x : __x;           \
 217                 } else {                                        \
 218                         int __x = (x);                          \
 219                         ret = (__x < 0) ? -__x : __x;           \
 220                 }                                               \
 221                 ret;                                            \
 222         })
 223
 224 #define abs64(x) ({                             \
 225                 s64 __x = (x);                  \
 226                 (__x < 0) ? -__x : __x;         \
 227         })
 228
 229 #if defined(CONFIG_ENV_IS_EMBEDDED)
 230 #define TOTAL_MALLOC_LEN        CONFIG_SYS_MALLOC_LEN
 231 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
 232         (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
 233       defined(CONFIG_ENV_IS_IN_NVRAM)
 234 #define TOTAL_MALLOC_LEN        (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
 235 #else
 236 #define TOTAL_MALLOC_LEN        CONFIG_SYS_MALLOC_LEN
 237 #endif
 238
 239 /**
 240  * container_of - cast a member of a structure out to the containing structure
 241  * @ptr:        the pointer to the member.
 242  * @type:       the type of the container struct this is embedded in.
 243  * @member:     the name of the member within the struct.
 244  *
 245  */
 246 #define container_of(ptr, type, member) ({                      \
 247         const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
 248         (type *)( (char *)__mptr - offsetof(type,member) );})
 249
 250 /*
 251  * Function Prototypes
 252  */
 253
 254 void    hang            (void) __attribute__ ((noreturn));
 255
 256 int     timer_init(void);
 257 int     cpu_init(void);
 258
 259 /* */
 260 phys_size_t initdram (int);
 261 int     display_options (void);
 262 void    print_size(unsigned long long, const char *);
 263 int print_buffer(ulong addr, const void *data, uint width, uint count,
 264                  uint linelen);
 265
 266 /* common/main.c */
 267 void    main_loop       (void);
 268 int run_command(const char *cmd, int flag);
 269 int run_command_repeatable(const char *cmd, int flag);
 270
 271 /**
 272  * Run a list of commands separated by ; or even \0
 273  *
 274  * Note that if 'len' is not -1, then the command does not need to be nul
 275  * terminated, Memory will be allocated for the command in that case.
 276  *
 277  * @param cmd   List of commands to run, each separated bu semicolon
 278  * @param len   Length of commands excluding terminator if known (-1 if not)
 279  * @param flag  Execution flags (CMD_FLAG_...)
 280  * @return 0 on success, or != 0 on error.
 281  */
 282 int run_command_list(const char *cmd, int len, int flag);
 283 extern char console_buffer[];
 284
 285 /* arch/$(ARCH)/lib/board.c */
 286 void    board_init_f(ulong);
 287 void    board_init_r  (gd_t *, ulong) __attribute__ ((noreturn));
 288 int     checkboard    (void);
 289 int     checkflash    (void);
 290 int     checkdram     (void);
 291 int     last_stage_init(void);
 292 extern ulong monitor_flash_len;
 293 int mac_read_from_eeprom(void);
 294 extern u8 __dtb_dt_begin[];     /* embedded device tree blob */
 295 int set_cpu_clk_info(void);
 296 int mdm_init(void);
 297 #if defined(CONFIG_DISPLAY_CPUINFO)
 298 int print_cpuinfo(void);
 299 #else
 300 static inline int print_cpuinfo(void)
 301 {
 302         return 0;
 303 }
 304 #endif
 305 int update_flash_size(int flash_size);
 306 int arch_early_init_r(void);
 307
 308 /**
 309  * Show the DRAM size in a board-specific way
 310  *
 311  * This is used by boards to display DRAM information in their own way.
 312  *
 313  * @param size  Size of DRAM (which should be displayed along with other info)
 314  */
 315 void board_show_dram(ulong size);
 316
 317 /**
 318  * arch_fixup_fdt() - Write arch-specific information to fdt
 319  *
 320  * Defined in arch/$(ARCH)/lib/bootm-fdt.c
 321  *
 322  * @blob:       FDT blob to write to
 323  * @return 0 if ok, or -ve FDT_ERR_... on failure
 324  */
 325 int arch_fixup_fdt(void *blob);
 326
 327 /* common/flash.c */
 328 void flash_perror (int);
 329
 330 /* common/cmd_source.c */
 331 int     source (ulong addr, const char *fit_uname);
 332
 333 extern ulong load_addr;         /* Default Load Address */
 334 extern ulong save_addr;         /* Default Save Address */
 335 extern ulong save_size;         /* Default Save Size */
 336
 337 /* common/cmd_doc.c */
 338 void    doc_probe(unsigned long physadr);
 339
 340 /* common/cmd_net.c */
 341 int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 342
 343 /* common/cmd_fat.c */
 344 int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
 345
 346 /* common/cmd_ext2.c */
 347 int do_ext2load(cmd_tbl_t *, int, int, char * const []);
 348
 349 /* common/cmd_nvedit.c */
 350 int     env_init     (void);
 351 void    env_relocate (void);
 352 int     envmatch     (uchar *, int);
 353
 354 /* Avoid unfortunate conflict with libc's getenv() */
 355 #ifdef CONFIG_SANDBOX
 356 #define getenv uboot_getenv
 357 #endif
 358 char    *getenv      (const char *);
 359 int     getenv_f     (const char *name, char *buf, unsigned len);
 360 ulong getenv_ulong(const char *name, int base, ulong default_val);
 361
 362 /**
 363  * getenv_hex() - Return an environment variable as a hex value
 364  *
 365  * Decode an environment as a hex number (it may or may not have a 0x
 366  * prefix). If the environment variable cannot be found, or does not start
 367  * with hex digits, the default value is returned.
 368  *
 369  * @varname:            Variable to decode
 370  * @default_val:        Value to return on error
 371  */
 372 ulong getenv_hex(const char *varname, ulong default_val);
 373
 374 /*
 375  * Read an environment variable as a boolean
 376  * Return -1 if variable does not exist (default to true)
 377  */
 378 int getenv_yesno(const char *var);
 379 int     saveenv      (void);
 380 int     setenv       (const char *, const char *);
 381 int setenv_ulong(const char *varname, ulong value);
 382 int setenv_hex(const char *varname, ulong value);
 383 /**
 384  * setenv_addr - Set an environment variable to an address in hex
 385  *
 386  * @varname:    Environment variable to set
 387  * @addr:       Value to set it to
 388  * @return 0 if ok, 1 on error
 389  */
 390 static inline int setenv_addr(const char *varname, const void *addr)
 391 {
 392         return setenv_hex(varname, (ulong)addr);
 393 }
 394
 395 #ifdef CONFIG_ARM
 396 # include <asm/mach-types.h>
 397 # include <asm/setup.h>
 398 # include <asm/u-boot-arm.h>    /* ARM version to be fixed! */
 399 #endif /* CONFIG_ARM */
 400 #ifdef CONFIG_X86               /* x86 version to be fixed! */
 401 # include <asm/u-boot-x86.h>
 402 #endif /* CONFIG_X86 */
 403 #ifdef CONFIG_SANDBOX
 404 # include <asm/u-boot-sandbox.h>        /* TODO(sjg) what needs to be fixed? */
 405 #endif
 406 #ifdef CONFIG_NDS32
 407 # include <asm/mach-types.h>
 408 # include <asm/setup.h>
 409 # include <asm/u-boot-nds32.h>
 410 #endif /* CONFIG_NDS32 */
 411 #ifdef CONFIG_MIPS
 412 # include <asm/u-boot-mips.h>
 413 #endif /* CONFIG_MIPS */
 414 #ifdef CONFIG_ARC
 415 # include <asm/u-boot-arc.h>
 416 #endif /* CONFIG_ARC */
 417
 418 #ifdef CONFIG_AUTO_COMPLETE
 419 int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
 420 #endif
 421 int get_env_id (void);
 422
 423 void    pci_init      (void);
 424 void    pci_init_board(void);
 425 void    pciinfo       (int, int);
 426
 427 #if defined(CONFIG_PCI) && defined(CONFIG_4xx)
 428     int    pci_pre_init        (struct pci_controller *);
 429     int    is_pci_host         (struct pci_controller *);
 430 #endif
 431
 432 #if defined(CONFIG_PCI) && (defined(CONFIG_440) || defined(CONFIG_405EX))
 433 #   if defined(CONFIG_SYS_PCI_TARGET_INIT)
 434         void    pci_target_init      (struct pci_controller *);
 435 #   endif
 436 #   if defined(CONFIG_SYS_PCI_MASTER_INIT)
 437         void    pci_master_init      (struct pci_controller *);
 438 #   endif
 439 #if defined(CONFIG_440SPE) || \
 440     defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
 441     defined(CONFIG_405EX)
 442    void pcie_setup_hoses(int busno);
 443 #endif
 444 #endif
 445
 446 int     misc_init_f   (void);
 447 int     misc_init_r   (void);
 448
 449 /* common/exports.c */
 450 void    jumptable_init(void);
 451
 452 /* common/kallsysm.c */
 453 const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
 454
 455 /* api/api.c */
 456 void    api_init (void);
 457
 458 /* common/memsize.c */
 459 long    get_ram_size  (long *, long);
 460 phys_size_t get_effective_memsize(void);
 461
 462 /* $(BOARD)/$(BOARD).c */
 463 void    reset_phy     (void);
 464 void    fdc_hw_init   (void);
 465
 466 /* $(BOARD)/eeprom.c */
 467 void eeprom_init  (void);
 468 #ifndef CONFIG_SPI
 469 int  eeprom_probe (unsigned dev_addr, unsigned offset);
 470 #endif
 471 int  eeprom_read  (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
 472 int  eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
 473 #ifdef CONFIG_LWMON
 474 extern uchar pic_read  (uchar reg);
 475 extern void  pic_write (uchar reg, uchar val);
 476 #endif
 477
 478 /*
 479  * Set this up regardless of board
 480  * type, to prevent errors.
 481  */
 482 #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
 483 # define CONFIG_SYS_DEF_EEPROM_ADDR 0
 484 #else
 485 #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 486 # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
 487 #endif
 488 #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
 489
 490 #if defined(CONFIG_SPI)
 491 extern void spi_init_f (void);
 492 extern void spi_init_r (void);
 493 extern ssize_t spi_read  (uchar *, int, uchar *, int);
 494 extern ssize_t spi_write (uchar *, int, uchar *, int);
 495 #endif
 496
 497 #ifdef CONFIG_HERMES
 498 /* $(BOARD)/hermes.c */
 499 void hermes_start_lxt980 (int speed);
 500 #endif
 501
 502 #ifdef CONFIG_EVB64260
 503 void  evb64260_init(void);
 504 void  debug_led(int, int);
 505 void  display_mem_map(void);
 506 void  perform_soft_reset(void);
 507 #endif
 508
 509 /* $(BOARD)/$(BOARD).c */
 510 int board_early_init_f (void);
 511 int board_late_init (void);
 512 int board_postclk_init (void); /* after clocks/timebase, before env/serial */
 513 int board_early_init_r (void);
 514 void board_poweroff (void);
 515
 516 #if defined(CONFIG_SYS_DRAM_TEST)
 517 int testdram(void);
 518 #endif /* CONFIG_SYS_DRAM_TEST */
 519
 520 /* $(CPU)/start.S */
 521 #if defined(CONFIG_5xx) || \
 522     defined(CONFIG_8xx)
 523 uint    get_immr      (uint);
 524 #endif
 525 uint    get_pir       (void);
 526 #if defined(CONFIG_MPC5xxx)
 527 uint    get_svr       (void);
 528 #endif
 529 uint    get_pvr       (void);
 530 uint    get_svr       (void);
 531 uint    rd_ic_cst     (void);
 532 void    wr_ic_cst     (uint);
 533 void    wr_ic_adr     (uint);
 534 uint    rd_dc_cst     (void);
 535 void    wr_dc_cst     (uint);
 536 void    wr_dc_adr     (uint);
 537 int     icache_status (void);
 538 void    icache_enable (void);
 539 void    icache_disable(void);
 540 int     dcache_status (void);
 541 void    dcache_enable (void);
 542 void    dcache_disable(void);
 543 void    mmu_disable(void);
 544 #if defined(CONFIG_ARM)
 545 void    relocate_code(ulong);
 546 #else
 547 void    relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
 548 #endif
 549 ulong   get_endaddr   (void);
 550 void    trap_init     (ulong);
 551 #if defined (CONFIG_4xx)        || \
 552     defined (CONFIG_MPC5xxx)    || \
 553     defined (CONFIG_74xx_7xx)   || \
 554     defined (CONFIG_74x)        || \
 555     defined (CONFIG_75x)        || \
 556     defined (CONFIG_74xx)       || \
 557     defined (CONFIG_MPC85xx)    || \
 558     defined (CONFIG_MPC86xx)    || \
 559     defined (CONFIG_MPC83xx)
 560 unsigned char   in8(unsigned int);
 561 void            out8(unsigned int, unsigned char);
 562 unsigned short  in16(unsigned int);
 563 unsigned short  in16r(unsigned int);
 564 void            out16(unsigned int, unsigned short value);
 565 void            out16r(unsigned int, unsigned short value);
 566 unsigned long   in32(unsigned int);
 567 unsigned long   in32r(unsigned int);
 568 void            out32(unsigned int, unsigned long value);
 569 void            out32r(unsigned int, unsigned long value);
 570 void            ppcDcbf(unsigned long value);
 571 void            ppcDcbi(unsigned long value);
 572 void            ppcSync(void);
 573 void            ppcDcbz(unsigned long value);
 574 #endif
 575 #if defined (CONFIG_MICROBLAZE)
 576 unsigned short  in16(unsigned int);
 577 void            out16(unsigned int, unsigned short value);
 578 #endif
 579
 580 #if defined (CONFIG_MPC83xx)
 581 void            ppcDWload(unsigned int *addr, unsigned int *ret);
 582 void            ppcDWstore(unsigned int *addr, unsigned int *value);
 583 void disable_addr_trans(void);
 584 void enable_addr_trans(void);
 585 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 586 void ddr_enable_ecc(unsigned int dram_size);
 587 #endif
 588 #endif
 589
 590 /*
 591  * Return the current value of a monotonically increasing microsecond timer.
 592  * Granularity may be larger than 1us if hardware does not support this.
 593  */
 594 ulong timer_get_us(void);
 595
 596 /* $(CPU)/cpu.c */
 597 static inline int cpumask_next(int cpu, unsigned int mask)
 598 {
 599         for (cpu++; !((1 << cpu) & mask); cpu++)
 600                 ;
 601
 602         return cpu;
 603 }
 604
 605 #define for_each_cpu(iter, cpu, num_cpus, mask) \
 606         for (iter = 0, cpu = cpumask_next(-1, mask); \
 607                 iter < num_cpus; \
 608                 iter++, cpu = cpumask_next(cpu, mask)) \
 609
 610 int     cpu_numcores  (void);
 611 u32     cpu_mask      (void);
 612 int     is_core_valid (unsigned int);
 613 int     probecpu      (void);
 614 int     checkcpu      (void);
 615 int     checkicache   (void);
 616 int     checkdcache   (void);
 617 void    upmconfig     (unsigned int, unsigned int *, unsigned int);
 618 ulong   get_tbclk     (void);
 619 void    reset_cpu     (ulong addr);
 620 #if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
 621 void ft_cpu_setup(void *blob, bd_t *bd);
 622 #ifdef CONFIG_PCI
 623 void ft_pci_setup(void *blob, bd_t *bd);
 624 #endif
 625 #endif
 626
 627 void smp_set_core_boot_addr(unsigned long addr, int corenr);
 628 void smp_kick_all_cpus(void);
 629
 630 /* $(CPU)/serial.c */
 631 int     serial_init   (void);
 632 void    serial_setbrg (void);
 633 void    serial_putc   (const char);
 634 void    serial_putc_raw(const char);
 635 void    serial_puts   (const char *);
 636 int     serial_getc   (void);
 637 int     serial_tstc   (void);
 638
 639 /* These versions take a stdio_dev pointer */
 640 struct stdio_dev;
 641 int serial_stub_getc(struct stdio_dev *sdev);
 642 int serial_stub_tstc(struct stdio_dev *sdev);
 643
 644 void    _serial_setbrg (const int);
 645 void    _serial_putc   (const char, const int);
 646 void    _serial_putc_raw(const char, const int);
 647 void    _serial_puts   (const char *, const int);
 648 int     _serial_getc   (const int);
 649 int     _serial_tstc   (const int);
 650
 651 /* $(CPU)/speed.c */
 652 int     get_clocks (void);
 653 int     get_clocks_866 (void);
 654 int     sdram_adjust_866 (void);
 655 int     adjust_sdram_tbs_8xx (void);
 656 #if defined(CONFIG_MPC8260)
 657 int     prt_8260_clks (void);
 658 #elif defined(CONFIG_MPC5xxx)
 659 int     prt_mpc5xxx_clks (void);
 660 #endif
 661 #ifdef CONFIG_4xx
 662 ulong   get_OPB_freq (void);
 663 ulong   get_PCI_freq (void);
 664 #endif
 665 #if defined(CONFIG_S3C24X0) || \
 666     defined(CONFIG_LH7A40X) || \
 667     defined(CONFIG_EP93XX)
 668 ulong   get_FCLK (void);
 669 ulong   get_HCLK (void);
 670 ulong   get_PCLK (void);
 671 ulong   get_UCLK (void);
 672 #endif
 673 #if defined(CONFIG_LH7A40X)
 674 ulong   get_PLLCLK (void);
 675 #endif
 676 #if defined(CONFIG_IMX)
 677 ulong get_systemPLLCLK(void);
 678 ulong get_FCLK(void);
 679 ulong get_HCLK(void);
 680 ulong get_BCLK(void);
 681 ulong get_PERCLK1(void);
 682 ulong get_PERCLK2(void);
 683 ulong get_PERCLK3(void);
 684 #endif
 685 ulong   get_bus_freq  (ulong);
 686 int get_serial_clock(void);
 687
 688 #if defined(CONFIG_MPC85xx)
 689 typedef MPC85xx_SYS_INFO sys_info_t;
 690 void    get_sys_info  ( sys_info_t * );
 691 #  if defined(CONFIG_OF_LIBFDT)
 692         void ft_fixup_cpu(void *, u64);
 693         void ft_fixup_num_cores(void *);
 694 #  endif
 695 #endif
 696 #if defined(CONFIG_MPC86xx)
 697 typedef MPC86xx_SYS_INFO sys_info_t;
 698 void   get_sys_info  ( sys_info_t * );
 699 static inline ulong get_ddr_freq(ulong dummy)
 700 {
 701         return get_bus_freq(dummy);
 702 }
 703 #else
 704 ulong get_ddr_freq(ulong);
 705 #endif
 706
 707 #if defined(CONFIG_4xx)
 708 #  if defined(CONFIG_440)
 709 #       if defined(CONFIG_440SPE)
 710          unsigned long determine_sysper(void);
 711          unsigned long determine_pci_clock_per(void);
 712 #       endif
 713 #  endif
 714 typedef PPC4xx_SYS_INFO sys_info_t;
 715 int     ppc440spe_revB(void);
 716 void    get_sys_info  ( sys_info_t * );
 717 #endif
 718
 719 /* $(CPU)/cpu_init.c */
 720 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260)
 721 void    cpu_init_f    (volatile immap_t *immr);
 722 #endif
 723 #if defined(CONFIG_4xx) || defined(CONFIG_MCF52x2) || defined(CONFIG_MPC86xx)
 724 void    cpu_init_f    (void);
 725 #endif
 726 #ifdef CONFIG_MPC85xx
 727 ulong cpu_init_f(void);
 728 #endif
 729
 730 int     cpu_init_r    (void);
 731 #if defined(CONFIG_MPC8260)
 732 int     prt_8260_rsr  (void);
 733 #elif defined(CONFIG_MPC83xx)
 734 int     prt_83xx_rsr  (void);
 735 #endif
 736
 737 /* $(CPU)/interrupts.c */
 738 int     interrupt_init     (void);
 739 void    timer_interrupt    (struct pt_regs *);
 740 void    external_interrupt (struct pt_regs *);
 741 void    irq_install_handler(int, interrupt_handler_t *, void *);
 742 void    irq_free_handler   (int);
 743 void    reset_timer        (void);
 744 ulong   get_timer          (ulong base);
 745
 746 /* Return value of monotonic microsecond timer */
 747 unsigned long timer_get_us(void);
 748
 749 void    enable_interrupts  (void);
 750 int     disable_interrupts (void);
 751
 752 /* $(CPU)/.../commproc.c */
 753 int     dpram_init (void);
 754 uint    dpram_base(void);
 755 uint    dpram_base_align(uint align);
 756 uint    dpram_alloc(uint size);
 757 uint    dpram_alloc_align(uint size,uint align);
 758 void    bootcount_store (ulong);
 759 ulong   bootcount_load (void);
 760 #define BOOTCOUNT_MAGIC         0xB001C041
 761
 762 /* $(CPU)/.../<eth> */
 763 void mii_init (void);
 764
 765 /* $(CPU)/.../lcd.c */
 766 ulong   lcd_setmem (ulong);
 767
 768 /* $(CPU)/.../video.c */
 769 ulong   video_setmem (ulong);
 770
 771 /* arch/$(ARCH)/lib/cache.c */
 772 void    enable_caches(void);
 773 void    flush_cache   (unsigned long, unsigned long);
 774 void    flush_dcache_all(void);
 775 void    flush_dcache_range(unsigned long start, unsigned long stop);
 776 void    invalidate_dcache_range(unsigned long start, unsigned long stop);
 777 void    invalidate_dcache_all(void);
 778 void    invalidate_icache_all(void);
 779
 780 /* arch/$(ARCH)/lib/ticks.S */
 781 unsigned long long get_ticks(void);
 782 void    wait_ticks    (unsigned long);
 783
 784 /* arch/$(ARCH)/lib/time.c */
 785 void    __udelay      (unsigned long);
 786 ulong   usec2ticks    (unsigned long usec);
 787 ulong   ticks2usec    (unsigned long ticks);
 788 int     init_timebase (void);
 789
 790 /* lib/gunzip.c */
 791 int gunzip(void *, int, unsigned char *, unsigned long *);
 792 int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
 793                                                 int stoponerr, int offset);
 794
 795 /* lib/qsort.c */
 796 void qsort(void *base, size_t nmemb, size_t size,
 797            int(*compar)(const void *, const void *));
 798 int strcmp_compar(const void *, const void *);
 799
 800 /* lib/time.c */
 801 void    udelay        (unsigned long);
 802 void mdelay(unsigned long);
 803
 804 /* lib/uuid.c */
 805 #include <uuid.h>
 806
 807 /* lib/vsprintf.c */
 808 #include <vsprintf.h>
 809
 810 /* lib/strmhz.c */
 811 char *  strmhz(char *buf, unsigned long hz);
 812
 813 /* lib/crc32.c */
 814 #include <u-boot/crc.h>
 815
 816 /* lib/rand.c */
 817 #define RAND_MAX -1U
 818 void srand(unsigned int seed);
 819 unsigned int rand(void);
 820 unsigned int rand_r(unsigned int *seedp);
 821
 822 /* common/console.c */
 823 int     console_init_f(void);   /* Before relocation; uses the serial  stuff    */
 824 int     console_init_r(void);   /* After  relocation; uses the console stuff    */
 825 int     console_assign(int file, const char *devname);  /* Assign the console   */
 826 int     ctrlc (void);
 827 int     had_ctrlc (void);       /* have we had a Control-C since last clear? */
 828 void    clear_ctrlc (void);     /* clear the Control-C condition */
 829 int     disable_ctrlc (int);    /* 1 to disable, 0 to enable Control-C detect */
 830 int confirm_yesno(void);        /*  1 if input is "y", "Y", "yes" or "YES" */
 831 /*
 832  * STDIO based functions (can always be used)
 833  */
 834 /* serial stuff */
 835 int     serial_printf (const char *fmt, ...)
 836                 __attribute__ ((format (__printf__, 1, 2)));
 837 /* stdin */
 838 int     getc(void);
 839 int     tstc(void);
 840
 841 /* stdout */
 842 void    putc(const char c);
 843 void    puts(const char *s);
 844 int     printf(const char *fmt, ...)
 845                 __attribute__ ((format (__printf__, 1, 2)));
 846 int     vprintf(const char *fmt, va_list args);
 847
 848 /* stderr */
 849 #define eputc(c)                fputc(stderr, c)
 850 #define eputs(s)                fputs(stderr, s)
 851 #define eprintf(fmt,args...)    fprintf(stderr,fmt ,##args)
 852
 853 /*
 854  * FILE based functions (can only be used AFTER relocation!)
 855  */
 856 #define stdin           0
 857 #define stdout          1
 858 #define stderr          2
 859 #define MAX_FILES       3
 860
 861 int     fprintf(int file, const char *fmt, ...)
 862                 __attribute__ ((format (__printf__, 2, 3)));
 863 void    fputs(int file, const char *s);
 864 void    fputc(int file, const char c);
 865 int     ftstc(int file);
 866 int     fgetc(int file);
 867
 868 /* lib/gzip.c */
 869 int gzip(void *dst, unsigned long *lenp,
 870                 unsigned char *src, unsigned long srclen);
 871 int zzip(void *dst, unsigned long *lenp, unsigned char *src,
 872                 unsigned long srclen, int stoponerr,
 873                 int (*func)(unsigned long, unsigned long));
 874
 875 /* lib/net_utils.c */
 876 #include <net.h>
 877 static inline IPaddr_t getenv_IPaddr(char *var)
 878 {
 879         return string_to_ip(getenv(var));
 880 }
 881
 882 /*
 883  * CONSOLE multiplexing.
 884  */
 885 #ifdef CONFIG_CONSOLE_MUX
 886 #include <iomux.h>
 887 #endif
 888
 889 int     pcmcia_init (void);
 890
 891 #ifdef CONFIG_STATUS_LED
 892 # include <status_led.h>
 893 #endif
 894
 895 #include <bootstage.h>
 896
 897 #ifdef CONFIG_SHOW_ACTIVITY
 898 void show_activity(int arg);
 899 #endif
 900
 901 /* Multicore arch functions */
 902 #ifdef CONFIG_MP
 903 int cpu_status(int nr);
 904 int cpu_reset(int nr);
 905 int cpu_disable(int nr);
 906 int cpu_release(int nr, int argc, char * const argv[]);
 907 #endif
 908
 909 /* Define a null map_sysmem() if the architecture doesn't use it */
 910 # ifndef CONFIG_ARCH_MAP_SYSMEM
 911 static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
 912 {
 913         return (void *)(uintptr_t)paddr;
 914 }
 915
 916 static inline void unmap_sysmem(const void *vaddr)
 917 {
 918 }
 919
 920 static inline phys_addr_t map_to_sysmem(const void *ptr)
 921 {
 922         return (phys_addr_t)(uintptr_t)ptr;
 923 }
 924 # endif
 925
 926 #endif /* __ASSEMBLY__ */
 927
 928 #ifdef CONFIG_PPC
 929 /*
 930  * Has to be included outside of the #ifndef __ASSEMBLY__ section.
 931  * Otherwise might lead to compilation errors in assembler files.
 932  */
 933 #include <asm/cache.h>
 934 #endif
 935
 936 /* Put only stuff here that the assembler can digest */
 937
 938 #ifdef CONFIG_POST
 939 #define CONFIG_HAS_POST
 940 #ifndef CONFIG_POST_ALT_LIST
 941 #define CONFIG_POST_STD_LIST
 942 #endif
 943 #endif
 944
 945 #ifdef CONFIG_INIT_CRITICAL
 946 #error CONFIG_INIT_CRITICAL is deprecated!
 947 #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
 948 #endif
 949
 950 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 951
 952 #define ROUND(a,b)              (((a) + (b) - 1) & ~((b) - 1))
 953 #define DIV_ROUND(n,d)          (((n) + ((d)/2)) / (d))
 954 #define DIV_ROUND_UP(n,d)       (((n) + (d) - 1) / (d))
 955 #define roundup(x, y)           ((((x) + ((y) - 1)) / (y)) * (y))
 956
 957 /*
 958  * Divide positive or negative dividend by positive divisor and round
 959  * to closest integer. Result is undefined for negative divisors and
 960  * for negative dividends if the divisor variable type is unsigned.
 961  */
 962 #define DIV_ROUND_CLOSEST(x, divisor)(                  \
 963 {                                                       \
 964         typeof(x) __x = x;                              \
 965         typeof(divisor) __d = divisor;                  \
 966         (((typeof(x))-1) > 0 ||                         \
 967          ((typeof(divisor))-1) > 0 || (__x) > 0) ?      \
 968                 (((__x) + ((__d) / 2)) / (__d)) :       \
 969                 (((__x) - ((__d) / 2)) / (__d));        \
 970 }                                                       \
 971 )
 972
 973 #define ALIGN(x,a)              __ALIGN_MASK((x),(typeof(x))(a)-1)
 974 #define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))
 975
 976 /*
 977  * ARCH_DMA_MINALIGN is defined in asm/cache.h for each architecture.  It
 978  * is used to align DMA buffers.
 979  */
 980 #ifndef __ASSEMBLY__
 981 #include <asm/cache.h>
 982 #endif
 983
 984 /*
 985  * The ALLOC_CACHE_ALIGN_BUFFER macro is used to allocate a buffer on the
 986  * stack that meets the minimum architecture alignment requirements for DMA.
 987  * Such a buffer is useful for DMA operations where flushing and invalidating
 988  * the cache before and after a read and/or write operation is required for
 989  * correct operations.
 990  *
 991  * When called the macro creates an array on the stack that is sized such
 992  * that:
 993  *
 994  * 1) The beginning of the array can be advanced enough to be aligned.
 995  *
 996  * 2) The size of the aligned portion of the array is a multiple of the minimum
 997  *    architecture alignment required for DMA.
 998  *
 999  * 3) The aligned portion contains enough space for the original number of
1000  *    elements requested.
1001  *
1002  * The macro then creates a pointer to the aligned portion of this array and
1003  * assigns to the pointer the address of the first element in the aligned
1004  * portion of the array.
1005  *
1006  * Calling the macro as:
1007  *
1008  *     ALLOC_CACHE_ALIGN_BUFFER(uint32_t, buffer, 1024);
1009  *
1010  * Will result in something similar to saying:
1011  *
1012  *     uint32_t    buffer[1024];
1013  *
1014  * The following differences exist:
1015  *
1016  * 1) The resulting buffer is guaranteed to be aligned to the value of
1017  *    ARCH_DMA_MINALIGN.
1018  *
1019  * 2) The buffer variable created by the macro is a pointer to the specified
1020  *    type, and NOT an array of the specified type.  This can be very important
1021  *    if you want the address of the buffer, which you probably do, to pass it
1022  *    to the DMA hardware.  The value of &buffer is different in the two cases.
1023  *    In the macro case it will be the address of the pointer, not the address
1024  *    of the space reserved for the buffer.  However, in the second case it
1025  *    would be the address of the buffer.  So if you are replacing hard coded
1026  *    stack buffers with this macro you need to make sure you remove the & from
1027  *    the locations where you are taking the address of the buffer.
1028  *
1029  * Note that the size parameter is the number of array elements to allocate,
1030  * not the number of bytes.
1031  *
1032  * This macro can not be used outside of function scope, or for the creation
1033  * of a function scoped static buffer.  It can not be used to create a cache
1034  * line aligned global buffer.
1035  */
1036 #define PAD_COUNT(s, pad) (((s) - 1) / (pad) + 1)
1037 #define PAD_SIZE(s, pad) (PAD_COUNT(s, pad) * pad)
1038 #define ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, pad)            \
1039         char __##name[ROUND(PAD_SIZE((size) * sizeof(type), pad), align)  \
1040                       + (align - 1)];                                   \
1041                                                                         \
1042         type *name = (type *) ALIGN((uintptr_t)__##name, align)
1043 #define ALLOC_ALIGN_BUFFER(type, name, size, align)             \
1044         ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, 1)
1045 #define ALLOC_CACHE_ALIGN_BUFFER_PAD(type, name, size, pad)             \
1046         ALLOC_ALIGN_BUFFER_PAD(type, name, size, ARCH_DMA_MINALIGN, pad)
1047 #define ALLOC_CACHE_ALIGN_BUFFER(type, name, size)                      \
1048         ALLOC_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN)
1049
1050 /*
1051  * DEFINE_CACHE_ALIGN_BUFFER() is similar to ALLOC_CACHE_ALIGN_BUFFER, but it's
1052  * purpose is to allow allocating aligned buffers outside of function scope.
1053  * Usage of this macro shall be avoided or used with extreme care!
1054  */
1055 #define DEFINE_ALIGN_BUFFER(type, name, size, align)                    \
1056         static char __##name[roundup(size * sizeof(type), align)]       \
1057                         __aligned(align);                               \
1058                                                                         \
1059         static type *name = (type *)__##name
1060 #define DEFINE_CACHE_ALIGN_BUFFER(type, name, size)                     \
1061         DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN)
1062
1063 /* Pull in stuff for the build system */
1064 #ifdef DO_DEPS_ONLY
1065 # include <environment.h>
1066 #endif
1067
1068 #endif  /* __COMMON_H_ */