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_MPC852)      || defined(CONFIG_MPC852T)      || \
  32     defined(CONFIG_MPC859)      || defined(CONFIG_MPC859T)      || \
  33     defined(CONFIG_MPC859DSL)   || \
  34     defined(CONFIG_MPC866)      || defined(CONFIG_MPC866T)      || \
  35     defined(CONFIG_MPC866P)
  36 # define CONFIG_MPC866_FAMILY 1
  37 #elif defined(CONFIG_MPC870) \
  38    || defined(CONFIG_MPC875) \
  39    || defined(CONFIG_MPC880) \
  40    || defined(CONFIG_MPC885)
  41 # define CONFIG_MPC885_FAMILY   1
  42 #endif
  43 #if   defined(CONFIG_MPC860)       \
  44    || defined(CONFIG_MPC860T)      \
  45    || defined(CONFIG_MPC866_FAMILY) \
  46    || defined(CONFIG_MPC885_FAMILY)
  47 # define CONFIG_MPC86x 1
  48 #endif
  49 #elif defined(CONFIG_5xx)
  50 #include <asm/5xx_immap.h>
  51 #elif defined(CONFIG_MPC5xxx)
  52 #include <mpc5xxx.h>
  53 #elif defined(CONFIG_MPC512X)
  54 #include <asm/immap_512x.h>
  55 #elif defined(CONFIG_8260)
  56 #if   defined(CONFIG_MPC8247) \
  57    || defined(CONFIG_MPC8248) \
  58    || defined(CONFIG_MPC8271) \
  59    || defined(CONFIG_MPC8272)
  60 #define CONFIG_MPC8272_FAMILY   1
  61 #endif
  62 #if defined(CONFIG_MPC8272_FAMILY)
  63 #define CONFIG_MPC8260  1
  64 #endif
  65 #include <asm/immap_8260.h>
  66 #endif
  67 #ifdef CONFIG_MPC86xx
  68 #include <mpc86xx.h>
  69 #include <asm/immap_86xx.h>
  70 #endif
  71 #ifdef CONFIG_MPC85xx
  72 #include <mpc85xx.h>
  73 #include <asm/immap_85xx.h>
  74 #endif
  75 #ifdef CONFIG_MPC83xx
  76 #include <mpc83xx.h>
  77 #include <asm/immap_83xx.h>
  78 #endif
  79 #ifdef  CONFIG_4xx
  80 #include <asm/ppc4xx.h>
  81 #endif
  82 #ifdef CONFIG_HYMOD
  83 #include <board/hymod/hymod.h>
  84 #endif
  85 #ifdef CONFIG_ARM
  86 #define asmlinkage      /* nothing */
  87 #endif
  88 #ifdef CONFIG_BLACKFIN
  89 #include <asm/blackfin.h>
  90 #endif
  91 #ifdef CONFIG_SOC_DA8XX
  92 #include <asm/arch/hardware.h>
  93 #endif
  94
  95 #include <part.h>
  96 #include <flash.h>
  97 #include <image.h>
  98
  99 #ifdef DEBUG
 100 #define _DEBUG  1
 101 #else
 102 #define _DEBUG  0
 103 #endif
 104
 105 /*
 106  * Output a debug text when condition "cond" is met. The "cond" should be
 107  * computed by a preprocessor in the best case, allowing for the best
 108  * optimization.
 109  */
 110 #define debug_cond(cond, fmt, args...)          \
 111         do {                                    \
 112                 if (cond)                       \
 113                         printf(fmt, ##args);    \
 114         } while (0)
 115
 116 #define debug(fmt, args...)                     \
 117         debug_cond(_DEBUG, fmt, ##args)
 118
 119 /*
 120  * An assertion is run-time check done in debug mode only. If DEBUG is not
 121  * defined then it is skipped. If DEBUG is defined and the assertion fails,
 122  * then it calls panic*( which may or may not reset/halt U-Boot (see
 123  * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found
 124  * before release, and after release it is hoped that they don't matter. But
 125  * in any case these failing assertions cannot be fixed with a reset (which
 126  * may just do the same assertion again).
 127  */
 128 void __assert_fail(const char *assertion, const char *file, unsigned line,
 129                    const char *function);
 130 #define assert(x) \
 131         ({ if (!(x) && _DEBUG) \
 132                 __assert_fail(#x, __FILE__, __LINE__, __func__); })
 133
 134 #define error(fmt, args...) do {                                        \
 135                 printf("ERROR: " fmt "\nat %s:%d/%s()\n",               \
 136                         ##args, __FILE__, __LINE__, __func__);          \
 137 } while (0)
 138
 139 #ifndef BUG
 140 #define BUG() do { \
 141         printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
 142         panic("BUG!"); \
 143 } while (0)
 144 #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
 145 #endif /* BUG */
 146
 147 /* Force a compilation error if condition is true */
 148 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 149
 150 typedef void (interrupt_handler_t)(void *);
 151
 152 #include <asm/u-boot.h> /* boot information for Linux kernel */
 153 #include <asm/global_data.h>    /* global data used for startup functions */
 154
 155 /*
 156  * enable common handling for all TQM8xxL/M boards:
 157  * - CONFIG_TQM8xxM will be defined for all TQM8xxM boards
 158  * - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards
 159  *                  and for the TQM885D board
 160  */
 161 #if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \
 162     defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \
 163     defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M)
 164 # ifndef CONFIG_TQM8xxM
 165 #  define CONFIG_TQM8xxM
 166 # endif
 167 #endif
 168 #if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \
 169     defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \
 170     defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM) || \
 171     defined(CONFIG_TQM885D)
 172 # ifndef CONFIG_TQM8xxL
 173 #  define CONFIG_TQM8xxL
 174 # endif
 175 #endif
 176
 177 /*
 178  * General Purpose Utilities
 179  */
 180 #define min(X, Y)                               \
 181         ({ typeof(X) __x = (X);                 \
 182                 typeof(Y) __y = (Y);            \
 183                 (__x < __y) ? __x : __y; })
 184
 185 #define max(X, Y)                               \
 186         ({ typeof(X) __x = (X);                 \
 187                 typeof(Y) __y = (Y);            \
 188                 (__x > __y) ? __x : __y; })
 189
 190 #define MIN(x, y)  min(x, y)
 191 #define MAX(x, y)  max(x, y)
 192
 193 #define min3(X, Y, Z)                           \
 194         ({ typeof(X) __x = (X);                 \
 195                 typeof(Y) __y = (Y);            \
 196                 typeof(Z) __z = (Z);            \
 197                 __x < __y ? (__x < __z ? __x : __z) :   \
 198                 (__y < __z ? __y : __z); })
 199
 200 #define max3(X, Y, Z)                           \
 201         ({ typeof(X) __x = (X);                 \
 202                 typeof(Y) __y = (Y);            \
 203                 typeof(Z) __z = (Z);            \
 204                 __x > __y ? (__x > __z ? __x : __z) :   \
 205                 (__y > __z ? __y : __z); })
 206
 207 #define MIN3(x, y, z)  min3(x, y, z)
 208 #define MAX3(x, y, z)  max3(x, y, z)
 209
 210 /*
 211  * Return the absolute value of a number.
 212  *
 213  * This handles unsigned and signed longs, ints, shorts and chars.  For all
 214  * input types abs() returns a signed long.
 215  *
 216  * For 64-bit types, use abs64()
 217  */
 218 #define abs(x) ({                                               \
 219                 long ret;                                       \
 220                 if (sizeof(x) == sizeof(long)) {                \
 221                         long __x = (x);                         \
 222                         ret = (__x < 0) ? -__x : __x;           \
 223                 } else {                                        \
 224                         int __x = (x);                          \
 225                         ret = (__x < 0) ? -__x : __x;           \
 226                 }                                               \
 227                 ret;                                            \
 228         })
 229
 230 #define abs64(x) ({                             \
 231                 s64 __x = (x);                  \
 232                 (__x < 0) ? -__x : __x;         \
 233         })
 234
 235 #if defined(CONFIG_ENV_IS_EMBEDDED)
 236 #define TOTAL_MALLOC_LEN        CONFIG_SYS_MALLOC_LEN
 237 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
 238         (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
 239       defined(CONFIG_ENV_IS_IN_NVRAM)
 240 #define TOTAL_MALLOC_LEN        (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
 241 #else
 242 #define TOTAL_MALLOC_LEN        CONFIG_SYS_MALLOC_LEN
 243 #endif
 244
 245 /**
 246  * container_of - cast a member of a structure out to the containing structure
 247  * @ptr:        the pointer to the member.
 248  * @type:       the type of the container struct this is embedded in.
 249  * @member:     the name of the member within the struct.
 250  *
 251  */
 252 #define container_of(ptr, type, member) ({                      \
 253         const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
 254         (type *)( (char *)__mptr - offsetof(type,member) );})
 255
 256 /*
 257  * Function Prototypes
 258  */
 259
 260 void    hang            (void) __attribute__ ((noreturn));
 261
 262 int     timer_init(void);
 263 int     cpu_init(void);
 264
 265 /* */
 266 phys_size_t initdram (int);
 267 int     display_options (void);
 268 void    print_size(unsigned long long, const char *);
 269 int print_buffer(ulong addr, const void *data, uint width, uint count,
 270                  uint linelen);
 271
 272 /* common/main.c */
 273 void    main_loop       (void);
 274 int run_command(const char *cmd, int flag);
 275
 276 /**
 277  * Run a list of commands separated by ; or even \0
 278  *
 279  * Note that if 'len' is not -1, then the command does not need to be nul
 280  * terminated, Memory will be allocated for the command in that case.
 281  *
 282  * @param cmd   List of commands to run, each separated bu semicolon
 283  * @param len   Length of commands excluding terminator if known (-1 if not)
 284  * @param flag  Execution flags (CMD_FLAG_...)
 285  * @return 0 on success, or != 0 on error.
 286  */
 287 int run_command_list(const char *cmd, int len, int flag);
 288 int     readline        (const char *const prompt);
 289 int     readline_into_buffer(const char *const prompt, char *buffer,
 290                         int timeout);
 291 int     parse_line (char *, char *[]);
 292 void    init_cmd_timeout(void);
 293 void    reset_cmd_timeout(void);
 294 extern char console_buffer[];
 295
 296 /* arch/$(ARCH)/lib/board.c */
 297 void    board_init_f(ulong);
 298 void    board_init_r  (gd_t *, ulong) __attribute__ ((noreturn));
 299 int     checkboard    (void);
 300 int     checkflash    (void);
 301 int     checkdram     (void);
 302 int     last_stage_init(void);
 303 extern ulong monitor_flash_len;
 304 int mac_read_from_eeprom(void);
 305 extern u8 __dtb_dt_begin[];     /* embedded device tree blob */
 306 int set_cpu_clk_info(void);
 307 #if defined(CONFIG_DISPLAY_CPUINFO)
 308 int print_cpuinfo(void);
 309 #else
 310 static inline int print_cpuinfo(void)
 311 {
 312         return 0;
 313 }
 314 #endif
 315 int update_flash_size(int flash_size);
 316
 317 /**
 318  * Show the DRAM size in a board-specific way
 319  *
 320  * This is used by boards to display DRAM information in their own way.
 321  *
 322  * @param size  Size of DRAM (which should be displayed along with other info)
 323  */
 324 void board_show_dram(ulong size);
 325
 326 /**
 327  * arch_fixup_memory_node() - Write arch-specific memory information to fdt
 328  *
 329  * Defined in arch/$(ARCH)/lib/bootm.c
 330  *
 331  * @blob:       FDT blob to write to
 332  * @return 0 if ok, or -ve FDT_ERR_... on failure
 333  */
 334 int arch_fixup_memory_node(void *blob);
 335
 336 /* common/flash.c */
 337 void flash_perror (int);
 338
 339 /* common/cmd_source.c */
 340 int     source (ulong addr, const char *fit_uname);
 341
 342 extern ulong load_addr;         /* Default Load Address */
 343 extern ulong save_addr;         /* Default Save Address */
 344 extern ulong save_size;         /* Default Save Size */
 345
 346 /* common/cmd_doc.c */
 347 void    doc_probe(unsigned long physadr);
 348
 349 /* common/cmd_net.c */
 350 int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 351
 352 /* common/cmd_fat.c */
 353 int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
 354
 355 /* common/cmd_ext2.c */
 356 int do_ext2load(cmd_tbl_t *, int, int, char * const []);
 357
 358 /* common/cmd_nvedit.c */
 359 int     env_init     (void);
 360 void    env_relocate (void);
 361 int     envmatch     (uchar *, int);
 362 char    *getenv      (const char *);
 363 int     getenv_f     (const char *name, char *buf, unsigned len);
 364 ulong getenv_ulong(const char *name, int base, ulong default_val);
 365
 366 /**
 367  * getenv_hex() - Return an environment variable as a hex value
 368  *
 369  * Decode an environment as a hex number (it may or may not have a 0x
 370  * prefix). If the environment variable cannot be found, or does not start
 371  * with hex digits, the default value is returned.
 372  *
 373  * @varname:            Variable to decode
 374  * @default_val:        Value to return on error
 375  */
 376 ulong getenv_hex(const char *varname, ulong default_val);
 377
 378 /*
 379  * Read an environment variable as a boolean
 380  * Return -1 if variable does not exist (default to true)
 381  */
 382 int getenv_yesno(const char *var);
 383 int     saveenv      (void);
 384 int     setenv       (const char *, const char *);
 385 int setenv_ulong(const char *varname, ulong value);
 386 int setenv_hex(const char *varname, ulong value);
 387 /**
 388  * setenv_addr - Set an environment variable to an address in hex
 389  *
 390  * @varname:    Environment variable to set
 391  * @addr:       Value to set it to
 392  * @return 0 if ok, 1 on error
 393  */
 394 static inline int setenv_addr(const char *varname, const void *addr)
 395 {
 396         return setenv_hex(varname, (ulong)addr);
 397 }
 398
 399 #ifdef CONFIG_ARM
 400 # include <asm/mach-types.h>
 401 # include <asm/setup.h>
 402 # include <asm/u-boot-arm.h>    /* ARM version to be fixed! */
 403 #endif /* CONFIG_ARM */
 404 #ifdef CONFIG_X86               /* x86 version to be fixed! */
 405 # include <asm/u-boot-x86.h>
 406 #endif /* CONFIG_X86 */
 407 #ifdef CONFIG_SANDBOX
 408 # include <asm/u-boot-sandbox.h>        /* TODO(sjg) what needs to be fixed? */
 409 #endif
 410 #ifdef CONFIG_NDS32
 411 # include <asm/mach-types.h>
 412 # include <asm/setup.h>
 413 # include <asm/u-boot-nds32.h>
 414 #endif /* CONFIG_NDS32 */
 415 #ifdef CONFIG_MIPS
 416 # include <asm/u-boot-mips.h>
 417 #endif /* CONFIG_MIPS */
 418 #ifdef CONFIG_ARC
 419 # include <asm/u-boot-arc.h>
 420 #endif /* CONFIG_ARC */
 421
 422 #ifdef CONFIG_AUTO_COMPLETE
 423 int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
 424 #endif
 425 int get_env_id (void);
 426
 427 void    pci_init      (void);
 428 void    pci_init_board(void);
 429 void    pciinfo       (int, int);
 430
 431 #if defined(CONFIG_PCI) && defined(CONFIG_4xx)
 432     int    pci_pre_init        (struct pci_controller *);
 433     int    is_pci_host         (struct pci_controller *);
 434 #endif
 435
 436 #if defined(CONFIG_PCI) && (defined(CONFIG_440) || defined(CONFIG_405EX))
 437 #   if defined(CONFIG_SYS_PCI_TARGET_INIT)
 438         void    pci_target_init      (struct pci_controller *);
 439 #   endif
 440 #   if defined(CONFIG_SYS_PCI_MASTER_INIT)
 441         void    pci_master_init      (struct pci_controller *);
 442 #   endif
 443 #if defined(CONFIG_440SPE) || \
 444     defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
 445     defined(CONFIG_405EX)
 446    void pcie_setup_hoses(int busno);
 447 #endif
 448 #endif
 449
 450 int     misc_init_f   (void);
 451 int     misc_init_r   (void);
 452
 453 /* common/exports.c */
 454 void    jumptable_init(void);
 455
 456 /* common/kallsysm.c */
 457 const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
 458
 459 /* api/api.c */
 460 void    api_init (void);
 461
 462 /* common/memsize.c */
 463 long    get_ram_size  (long *, long);
 464 phys_size_t get_effective_memsize(void);
 465
 466 /* $(BOARD)/$(BOARD).c */
 467 void    reset_phy     (void);
 468 void    fdc_hw_init   (void);
 469
 470 /* $(BOARD)/eeprom.c */
 471 void eeprom_init  (void);
 472 #ifndef CONFIG_SPI
 473 int  eeprom_probe (unsigned dev_addr, unsigned offset);
 474 #endif
 475 int  eeprom_read  (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
 476 int  eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
 477 #ifdef CONFIG_LWMON
 478 extern uchar pic_read  (uchar reg);
 479 extern void  pic_write (uchar reg, uchar val);
 480 #endif
 481
 482 /*
 483  * Set this up regardless of board
 484  * type, to prevent errors.
 485  */
 486 #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
 487 # define CONFIG_SYS_DEF_EEPROM_ADDR 0
 488 #else
 489 #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 490 # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
 491 #endif
 492 #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
 493
 494 #if defined(CONFIG_SPI)
 495 extern void spi_init_f (void);
 496 extern void spi_init_r (void);
 497 extern ssize_t spi_read  (uchar *, int, uchar *, int);
 498 extern ssize_t spi_write (uchar *, int, uchar *, int);
 499 #endif
 500
 501 #ifdef CONFIG_RPXCLASSIC
 502 void rpxclassic_init (void);
 503 #endif
 504
 505 void rpxlite_init (void);
 506
 507 #ifdef CONFIG_MBX
 508 /* $(BOARD)/mbx8xx.c */
 509 void    mbx_init (void);
 510 void    board_serial_init (void);
 511 void    board_ether_init (void);
 512 #endif
 513
 514 #ifdef CONFIG_HERMES
 515 /* $(BOARD)/hermes.c */
 516 void hermes_start_lxt980 (int speed);
 517 #endif
 518
 519 #ifdef CONFIG_EVB64260
 520 void  evb64260_init(void);
 521 void  debug_led(int, int);
 522 void  display_mem_map(void);
 523 void  perform_soft_reset(void);
 524 #endif
 525
 526 /* $(BOARD)/$(BOARD).c */
 527 int board_early_init_f (void);
 528 int board_late_init (void);
 529 int board_postclk_init (void); /* after clocks/timebase, before env/serial */
 530 int board_early_init_r (void);
 531 void board_poweroff (void);
 532
 533 #if defined(CONFIG_SYS_DRAM_TEST)
 534 int testdram(void);
 535 #endif /* CONFIG_SYS_DRAM_TEST */
 536
 537 /* $(CPU)/start.S */
 538 #if defined(CONFIG_5xx) || \
 539     defined(CONFIG_8xx)
 540 uint    get_immr      (uint);
 541 #endif
 542 uint    get_pir       (void);
 543 #if defined(CONFIG_MPC5xxx)
 544 uint    get_svr       (void);
 545 #endif
 546 uint    get_pvr       (void);
 547 uint    get_svr       (void);
 548 uint    rd_ic_cst     (void);
 549 void    wr_ic_cst     (uint);
 550 void    wr_ic_adr     (uint);
 551 uint    rd_dc_cst     (void);
 552 void    wr_dc_cst     (uint);
 553 void    wr_dc_adr     (uint);
 554 int     icache_status (void);
 555 void    icache_enable (void);
 556 void    icache_disable(void);
 557 int     dcache_status (void);
 558 void    dcache_enable (void);
 559 void    dcache_disable(void);
 560 void    mmu_disable(void);
 561 #if defined(CONFIG_ARM)
 562 void    relocate_code(ulong);
 563 #else
 564 void    relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
 565 #endif
 566 ulong   get_endaddr   (void);
 567 void    trap_init     (ulong);
 568 #if defined (CONFIG_4xx)        || \
 569     defined (CONFIG_MPC5xxx)    || \
 570     defined (CONFIG_74xx_7xx)   || \
 571     defined (CONFIG_74x)        || \
 572     defined (CONFIG_75x)        || \
 573     defined (CONFIG_74xx)       || \
 574     defined (CONFIG_MPC85xx)    || \
 575     defined (CONFIG_MPC86xx)    || \
 576     defined (CONFIG_MPC83xx)
 577 unsigned char   in8(unsigned int);
 578 void            out8(unsigned int, unsigned char);
 579 unsigned short  in16(unsigned int);
 580 unsigned short  in16r(unsigned int);
 581 void            out16(unsigned int, unsigned short value);
 582 void            out16r(unsigned int, unsigned short value);
 583 unsigned long   in32(unsigned int);
 584 unsigned long   in32r(unsigned int);
 585 void            out32(unsigned int, unsigned long value);
 586 void            out32r(unsigned int, unsigned long value);
 587 void            ppcDcbf(unsigned long value);
 588 void            ppcDcbi(unsigned long value);
 589 void            ppcSync(void);
 590 void            ppcDcbz(unsigned long value);
 591 #endif
 592 #if defined (CONFIG_MICROBLAZE)
 593 unsigned short  in16(unsigned int);
 594 void            out16(unsigned int, unsigned short value);
 595 #endif
 596
 597 #if defined (CONFIG_MPC83xx)
 598 void            ppcDWload(unsigned int *addr, unsigned int *ret);
 599 void            ppcDWstore(unsigned int *addr, unsigned int *value);
 600 void disable_addr_trans(void);
 601 void enable_addr_trans(void);
 602 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 603 void ddr_enable_ecc(unsigned int dram_size);
 604 #endif
 605 #endif
 606
 607 /*
 608  * Return the current value of a monotonically increasing microsecond timer.
 609  * Granularity may be larger than 1us if hardware does not support this.
 610  */
 611 ulong timer_get_us(void);
 612
 613 /* $(CPU)/cpu.c */
 614 static inline int cpumask_next(int cpu, unsigned int mask)
 615 {
 616         for (cpu++; !((1 << cpu) & mask); cpu++)
 617                 ;
 618
 619         return cpu;
 620 }
 621
 622 #define for_each_cpu(iter, cpu, num_cpus, mask) \
 623         for (iter = 0, cpu = cpumask_next(-1, mask); \
 624                 iter < num_cpus; \
 625                 iter++, cpu = cpumask_next(cpu, mask)) \
 626
 627 int     cpu_numcores  (void);
 628 u32     cpu_mask      (void);
 629 int     is_core_valid (unsigned int);
 630 int     probecpu      (void);
 631 int     checkcpu      (void);
 632 int     checkicache   (void);
 633 int     checkdcache   (void);
 634 void    upmconfig     (unsigned int, unsigned int *, unsigned int);
 635 ulong   get_tbclk     (void);
 636 void    reset_cpu     (ulong addr);
 637 #if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
 638 void ft_cpu_setup(void *blob, bd_t *bd);
 639 #ifdef CONFIG_PCI
 640 void ft_pci_setup(void *blob, bd_t *bd);
 641 #endif
 642 #endif
 643
 644 void smp_set_core_boot_addr(unsigned long addr, int corenr);
 645 void smp_kick_all_cpus(void);
 646
 647 /* $(CPU)/serial.c */
 648 int     serial_init   (void);
 649 void    serial_setbrg (void);
 650 void    serial_putc   (const char);
 651 void    serial_putc_raw(const char);
 652 void    serial_puts   (const char *);
 653 int     serial_getc   (void);
 654 int     serial_tstc   (void);
 655
 656 void    _serial_setbrg (const int);
 657 void    _serial_putc   (const char, const int);
 658 void    _serial_putc_raw(const char, const int);
 659 void    _serial_puts   (const char *, const int);
 660 int     _serial_getc   (const int);
 661 int     _serial_tstc   (const int);
 662
 663 /* $(CPU)/speed.c */
 664 int     get_clocks (void);
 665 int     get_clocks_866 (void);
 666 int     sdram_adjust_866 (void);
 667 int     adjust_sdram_tbs_8xx (void);
 668 #if defined(CONFIG_8260)
 669 int     prt_8260_clks (void);
 670 #elif defined(CONFIG_MPC5xxx)
 671 int     prt_mpc5xxx_clks (void);
 672 #endif
 673 #ifdef CONFIG_4xx
 674 ulong   get_OPB_freq (void);
 675 ulong   get_PCI_freq (void);
 676 #endif
 677 #if defined(CONFIG_S3C24X0) || \
 678     defined(CONFIG_LH7A40X) || \
 679     defined(CONFIG_EP93XX)
 680 ulong   get_FCLK (void);
 681 ulong   get_HCLK (void);
 682 ulong   get_PCLK (void);
 683 ulong   get_UCLK (void);
 684 #endif
 685 #if defined(CONFIG_LH7A40X)
 686 ulong   get_PLLCLK (void);
 687 #endif
 688 #if defined CONFIG_INCA_IP
 689 uint    incaip_get_cpuclk (void);
 690 #endif
 691 #if defined(CONFIG_IMX)
 692 ulong get_systemPLLCLK(void);
 693 ulong get_FCLK(void);
 694 ulong get_HCLK(void);
 695 ulong get_BCLK(void);
 696 ulong get_PERCLK1(void);
 697 ulong get_PERCLK2(void);
 698 ulong get_PERCLK3(void);
 699 #endif
 700 ulong   get_bus_freq  (ulong);
 701 int get_serial_clock(void);
 702
 703 #if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx)
 704 ulong get_ddr_freq(ulong);
 705 #endif
 706 #if defined(CONFIG_MPC85xx)
 707 typedef MPC85xx_SYS_INFO sys_info_t;
 708 void    get_sys_info  ( sys_info_t * );
 709 #  if defined(CONFIG_OF_LIBFDT)
 710         void ft_fixup_cpu(void *, u64);
 711         void ft_fixup_num_cores(void *);
 712 #  endif
 713 #endif
 714 #if defined(CONFIG_MPC86xx)
 715 typedef MPC86xx_SYS_INFO sys_info_t;
 716 void   get_sys_info  ( sys_info_t * );
 717 static inline ulong get_ddr_freq(ulong dummy)
 718 {
 719         return get_bus_freq(dummy);
 720 }
 721 #endif
 722
 723 #if defined(CONFIG_4xx)
 724 #  if defined(CONFIG_440)
 725 #       if defined(CONFIG_440SPE)
 726          unsigned long determine_sysper(void);
 727          unsigned long determine_pci_clock_per(void);
 728 #       endif
 729 #  endif
 730 typedef PPC4xx_SYS_INFO sys_info_t;
 731 int     ppc440spe_revB(void);
 732 void    get_sys_info  ( sys_info_t * );
 733 #endif
 734
 735 /* $(CPU)/cpu_init.c */
 736 #if defined(CONFIG_8xx) || defined(CONFIG_8260)
 737 void    cpu_init_f    (volatile immap_t *immr);
 738 #endif
 739 #if defined(CONFIG_4xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MCF52x2) ||defined(CONFIG_MPC86xx)
 740 void    cpu_init_f    (void);
 741 #endif
 742
 743 int     cpu_init_r    (void);
 744 #if defined(CONFIG_8260)
 745 int     prt_8260_rsr  (void);
 746 #elif defined(CONFIG_MPC83xx)
 747 int     prt_83xx_rsr  (void);
 748 #endif
 749
 750 /* $(CPU)/interrupts.c */
 751 int     interrupt_init     (void);
 752 void    timer_interrupt    (struct pt_regs *);
 753 void    external_interrupt (struct pt_regs *);
 754 void    irq_install_handler(int, interrupt_handler_t *, void *);
 755 void    irq_free_handler   (int);
 756 void    reset_timer        (void);
 757 ulong   get_timer          (ulong base);
 758
 759 /* Return value of monotonic microsecond timer */
 760 unsigned long timer_get_us(void);
 761
 762 void    enable_interrupts  (void);
 763 int     disable_interrupts (void);
 764
 765 /* $(CPU)/.../commproc.c */
 766 int     dpram_init (void);
 767 uint    dpram_base(void);
 768 uint    dpram_base_align(uint align);
 769 uint    dpram_alloc(uint size);
 770 uint    dpram_alloc_align(uint size,uint align);
 771 void    bootcount_store (ulong);
 772 ulong   bootcount_load (void);
 773 #define BOOTCOUNT_MAGIC         0xB001C041
 774
 775 /* $(CPU)/.../<eth> */
 776 void mii_init (void);
 777
 778 /* $(CPU)/.../lcd.c */
 779 ulong   lcd_setmem (ulong);
 780
 781 /* $(CPU)/.../video.c */
 782 ulong   video_setmem (ulong);
 783
 784 /* arch/$(ARCH)/lib/cache.c */
 785 void    enable_caches(void);
 786 void    flush_cache   (unsigned long, unsigned long);
 787 void    flush_dcache_all(void);
 788 void    flush_dcache_range(unsigned long start, unsigned long stop);
 789 void    invalidate_dcache_range(unsigned long start, unsigned long stop);
 790 void    invalidate_dcache_all(void);
 791 void    invalidate_icache_all(void);
 792
 793 /* arch/$(ARCH)/lib/ticks.S */
 794 unsigned long long get_ticks(void);
 795 void    wait_ticks    (unsigned long);
 796
 797 /* arch/$(ARCH)/lib/time.c */
 798 void    __udelay      (unsigned long);
 799 ulong   usec2ticks    (unsigned long usec);
 800 ulong   ticks2usec    (unsigned long ticks);
 801 int     init_timebase (void);
 802
 803 /* lib/gunzip.c */
 804 int gunzip(void *, int, unsigned char *, unsigned long *);
 805 int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
 806                                                 int stoponerr, int offset);
 807
 808 /* lib/qsort.c */
 809 void qsort(void *base, size_t nmemb, size_t size,
 810            int(*compar)(const void *, const void *));
 811 int strcmp_compar(const void *, const void *);
 812
 813 /* lib/time.c */
 814 void    udelay        (unsigned long);
 815 void mdelay(unsigned long);
 816
 817 /* lib/uuid.c */
 818 void uuid_str_to_bin(const char *uuid, unsigned char *out);
 819 int uuid_str_valid(const char *uuid);
 820
 821 /* lib/vsprintf.c */
 822 #include <vsprintf.h>
 823
 824 /* lib/strmhz.c */
 825 char *  strmhz(char *buf, unsigned long hz);
 826
 827 /* lib/crc32.c */
 828 #include <u-boot/crc.h>
 829
 830 /* lib/rand.c */
 831 #if defined(CONFIG_RANDOM_MACADDR) || \
 832         defined(CONFIG_BOOTP_RANDOM_DELAY) || \
 833         defined(CONFIG_CMD_LINK_LOCAL)
 834 #define RAND_MAX -1U
 835 void srand(unsigned int seed);
 836 unsigned int rand(void);
 837 unsigned int rand_r(unsigned int *seedp);
 838 #endif
 839
 840 /* common/console.c */
 841 int     console_init_f(void);   /* Before relocation; uses the serial  stuff    */
 842 int     console_init_r(void);   /* After  relocation; uses the console stuff    */
 843 int     console_assign(int file, const char *devname);  /* Assign the console   */
 844 int     ctrlc (void);
 845 int     had_ctrlc (void);       /* have we had a Control-C since last clear? */
 846 void    clear_ctrlc (void);     /* clear the Control-C condition */
 847 int     disable_ctrlc (int);    /* 1 to disable, 0 to enable Control-C detect */
 848
 849 /*
 850  * STDIO based functions (can always be used)
 851  */
 852 /* serial stuff */
 853 int     serial_printf (const char *fmt, ...)
 854                 __attribute__ ((format (__printf__, 1, 2)));
 855 /* stdin */
 856 int     getc(void);
 857 int     tstc(void);
 858
 859 /* stdout */
 860 void    putc(const char c);
 861 void    puts(const char *s);
 862 int     printf(const char *fmt, ...)
 863                 __attribute__ ((format (__printf__, 1, 2)));
 864 int     vprintf(const char *fmt, va_list args);
 865
 866 /* stderr */
 867 #define eputc(c)                fputc(stderr, c)
 868 #define eputs(s)                fputs(stderr, s)
 869 #define eprintf(fmt,args...)    fprintf(stderr,fmt ,##args)
 870
 871 /*
 872  * FILE based functions (can only be used AFTER relocation!)
 873  */
 874 #define stdin           0
 875 #define stdout          1
 876 #define stderr          2
 877 #define MAX_FILES       3
 878
 879 int     fprintf(int file, const char *fmt, ...)
 880                 __attribute__ ((format (__printf__, 2, 3)));
 881 void    fputs(int file, const char *s);
 882 void    fputc(int file, const char c);
 883 int     ftstc(int file);
 884 int     fgetc(int file);
 885
 886 /* lib/gzip.c */
 887 int gzip(void *dst, unsigned long *lenp,
 888                 unsigned char *src, unsigned long srclen);
 889 int zzip(void *dst, unsigned long *lenp, unsigned char *src,
 890                 unsigned long srclen, int stoponerr,
 891                 int (*func)(unsigned long, unsigned long));
 892
 893 /* lib/net_utils.c */
 894 #include <net.h>
 895 static inline IPaddr_t getenv_IPaddr(char *var)
 896 {
 897         return string_to_ip(getenv(var));
 898 }
 899
 900 /*
 901  * CONSOLE multiplexing.
 902  */
 903 #ifdef CONFIG_CONSOLE_MUX
 904 #include <iomux.h>
 905 #endif
 906
 907 int     pcmcia_init (void);
 908
 909 #ifdef CONFIG_STATUS_LED
 910 # include <status_led.h>
 911 #endif
 912
 913 #include <bootstage.h>
 914
 915 #ifdef CONFIG_SHOW_ACTIVITY
 916 void show_activity(int arg);
 917 #endif
 918
 919 /* Multicore arch functions */
 920 #ifdef CONFIG_MP
 921 int cpu_status(int nr);
 922 int cpu_reset(int nr);
 923 int cpu_disable(int nr);
 924 int cpu_release(int nr, int argc, char * const argv[]);
 925 #endif
 926
 927 /* Define a null map_sysmem() if the architecture doesn't use it */
 928 # ifndef CONFIG_ARCH_MAP_SYSMEM
 929 static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
 930 {
 931         return (void *)(uintptr_t)paddr;
 932 }
 933
 934 static inline void unmap_sysmem(const void *vaddr)
 935 {
 936 }
 937
 938 static inline phys_addr_t map_to_sysmem(const void *ptr)
 939 {
 940         return (phys_addr_t)(uintptr_t)ptr;
 941 }
 942 # endif
 943
 944 #endif /* __ASSEMBLY__ */
 945
 946 #ifdef CONFIG_PPC
 947 /*
 948  * Has to be included outside of the #ifndef __ASSEMBLY__ section.
 949  * Otherwise might lead to compilation errors in assembler files.
 950  */
 951 #include <asm/cache.h>
 952 #endif
 953
 954 /* Put only stuff here that the assembler can digest */
 955
 956 #ifdef CONFIG_POST
 957 #define CONFIG_HAS_POST
 958 #ifndef CONFIG_POST_ALT_LIST
 959 #define CONFIG_POST_STD_LIST
 960 #endif
 961 #endif
 962
 963 #ifdef CONFIG_INIT_CRITICAL
 964 #error CONFIG_INIT_CRITICAL is deprecated!
 965 #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
 966 #endif
 967
 968 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 969
 970 #define ROUND(a,b)              (((a) + (b) - 1) & ~((b) - 1))
 971 #define DIV_ROUND(n,d)          (((n) + ((d)/2)) / (d))
 972 #define DIV_ROUND_UP(n,d)       (((n) + (d) - 1) / (d))
 973 #define roundup(x, y)           ((((x) + ((y) - 1)) / (y)) * (y))
 974
 975 /*
 976  * Divide positive or negative dividend by positive divisor and round
 977  * to closest integer. Result is undefined for negative divisors and
 978  * for negative dividends if the divisor variable type is unsigned.
 979  */
 980 #define DIV_ROUND_CLOSEST(x, divisor)(                  \
 981 {                                                       \
 982         typeof(x) __x = x;                              \
 983         typeof(divisor) __d = divisor;                  \
 984         (((typeof(x))-1) > 0 ||                         \
 985          ((typeof(divisor))-1) > 0 || (__x) > 0) ?      \
 986                 (((__x) + ((__d) / 2)) / (__d)) :       \
 987                 (((__x) - ((__d) / 2)) / (__d));        \
 988 }                                                       \
 989 )
 990
 991 #define ALIGN(x,a)              __ALIGN_MASK((x),(typeof(x))(a)-1)
 992 #define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))
 993
 994 /*
 995  * ARCH_DMA_MINALIGN is defined in asm/cache.h for each architecture.  It
 996  * is used to align DMA buffers.
 997  */
 998 #ifndef __ASSEMBLY__
 999 #include <asm/cache.h>
1000 #endif
1001
1002 /*
1003  * The ALLOC_CACHE_ALIGN_BUFFER macro is used to allocate a buffer on the
1004  * stack that meets the minimum architecture alignment requirements for DMA.
1005  * Such a buffer is useful for DMA operations where flushing and invalidating
1006  * the cache before and after a read and/or write operation is required for
1007  * correct operations.
1008  *
1009  * When called the macro creates an array on the stack that is sized such
1010  * that:
1011  *
1012  * 1) The beginning of the array can be advanced enough to be aligned.
1013  *
1014  * 2) The size of the aligned portion of the array is a multiple of the minimum
1015  *    architecture alignment required for DMA.
1016  *
1017  * 3) The aligned portion contains enough space for the original number of
1018  *    elements requested.
1019  *
1020  * The macro then creates a pointer to the aligned portion of this array and
1021  * assigns to the pointer the address of the first element in the aligned
1022  * portion of the array.
1023  *
1024  * Calling the macro as:
1025  *
1026  *     ALLOC_CACHE_ALIGN_BUFFER(uint32_t, buffer, 1024);
1027  *
1028  * Will result in something similar to saying:
1029  *
1030  *     uint32_t    buffer[1024];
1031  *
1032  * The following differences exist:
1033  *
1034  * 1) The resulting buffer is guaranteed to be aligned to the value of
1035  *    ARCH_DMA_MINALIGN.
1036  *
1037  * 2) The buffer variable created by the macro is a pointer to the specified
1038  *    type, and NOT an array of the specified type.  This can be very important
1039  *    if you want the address of the buffer, which you probably do, to pass it
1040  *    to the DMA hardware.  The value of &buffer is different in the two cases.
1041  *    In the macro case it will be the address of the pointer, not the address
1042  *    of the space reserved for the buffer.  However, in the second case it
1043  *    would be the address of the buffer.  So if you are replacing hard coded
1044  *    stack buffers with this macro you need to make sure you remove the & from
1045  *    the locations where you are taking the address of the buffer.
1046  *
1047  * Note that the size parameter is the number of array elements to allocate,
1048  * not the number of bytes.
1049  *
1050  * This macro can not be used outside of function scope, or for the creation
1051  * of a function scoped static buffer.  It can not be used to create a cache
1052  * line aligned global buffer.
1053  */
1054 #define PAD_COUNT(s, pad) (((s) - 1) / (pad) + 1)
1055 #define PAD_SIZE(s, pad) (PAD_COUNT(s, pad) * pad)
1056 #define ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, pad)            \
1057         char __##name[ROUND(PAD_SIZE((size) * sizeof(type), pad), align)  \
1058                       + (align - 1)];                                   \
1059                                                                         \
1060         type *name = (type *) ALIGN((uintptr_t)__##name, align)
1061 #define ALLOC_ALIGN_BUFFER(type, name, size, align)             \
1062         ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, 1)
1063 #define ALLOC_CACHE_ALIGN_BUFFER_PAD(type, name, size, pad)             \
1064         ALLOC_ALIGN_BUFFER_PAD(type, name, size, ARCH_DMA_MINALIGN, pad)
1065 #define ALLOC_CACHE_ALIGN_BUFFER(type, name, size)                      \
1066         ALLOC_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN)
1067
1068 /*
1069  * DEFINE_CACHE_ALIGN_BUFFER() is similar to ALLOC_CACHE_ALIGN_BUFFER, but it's
1070  * purpose is to allow allocating aligned buffers outside of function scope.
1071  * Usage of this macro shall be avoided or used with extreme care!
1072  */
1073 #define DEFINE_ALIGN_BUFFER(type, name, size, align)                    \
1074         static char __##name[roundup(size * sizeof(type), align)]       \
1075                         __aligned(align);                               \
1076                                                                         \
1077         static type *name = (type *)__##name
1078 #define DEFINE_CACHE_ALIGN_BUFFER(type, name, size)                     \
1079         DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN)
1080
1081 /* Pull in stuff for the build system */
1082 #ifdef DO_DEPS_ONLY
1083 # include <environment.h>
1084 #endif
1085
1086 #endif  /* __COMMON_H_ */