xref: /openbmc/u-boot/include/common.h (revision 064b55cf)
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/delay.h>
27 #include <linux/types.h>
28 #include <linux/string.h>
29 #include <linux/stringify.h>
30 #include <asm/ptrace.h>
31 #include <stdarg.h>
32 #include <linux/kernel.h>
33 
34 #include <part.h>
35 #include <flash.h>
36 #include <image.h>
37 
38 /* Bring in printf format macros if inttypes.h is included */
39 #define __STDC_FORMAT_MACROS
40 
41 #ifdef __LP64__
42 #define CONFIG_SYS_SUPPORT_64BIT_DATA
43 #endif
44 
45 #ifdef DEBUG
46 #define _DEBUG	1
47 #else
48 #define _DEBUG	0
49 #endif
50 
51 #ifdef CONFIG_SPL_BUILD
52 #define _SPL_BUILD	1
53 #else
54 #define _SPL_BUILD	0
55 #endif
56 
57 /* Define this at the top of a file to add a prefix to debug messages */
58 #ifndef pr_fmt
59 #define pr_fmt(fmt) fmt
60 #endif
61 
62 /*
63  * Output a debug text when condition "cond" is met. The "cond" should be
64  * computed by a preprocessor in the best case, allowing for the best
65  * optimization.
66  */
67 #define debug_cond(cond, fmt, args...)			\
68 	do {						\
69 		if (cond)				\
70 			printf(pr_fmt(fmt), ##args);	\
71 	} while (0)
72 
73 /* Show a message if DEBUG is defined in a file */
74 #define debug(fmt, args...)			\
75 	debug_cond(_DEBUG, fmt, ##args)
76 
77 /* Show a message if not in SPL */
78 #define warn_non_spl(fmt, args...)			\
79 	debug_cond(!_SPL_BUILD, fmt, ##args)
80 
81 /*
82  * An assertion is run-time check done in debug mode only. If DEBUG is not
83  * defined then it is skipped. If DEBUG is defined and the assertion fails,
84  * then it calls panic*( which may or may not reset/halt U-Boot (see
85  * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found
86  * before release, and after release it is hoped that they don't matter. But
87  * in any case these failing assertions cannot be fixed with a reset (which
88  * may just do the same assertion again).
89  */
90 void __assert_fail(const char *assertion, const char *file, unsigned line,
91 		   const char *function);
92 #define assert(x) \
93 	({ if (!(x) && _DEBUG) \
94 		__assert_fail(#x, __FILE__, __LINE__, __func__); })
95 
96 #define error(fmt, args...) do {					\
97 		printf("ERROR: " pr_fmt(fmt) "\nat %s:%d/%s()\n",	\
98 			##args, __FILE__, __LINE__, __func__);		\
99 } while (0)
100 
101 #ifndef BUG
102 #define BUG() do { \
103 	printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
104 	panic("BUG!"); \
105 } while (0)
106 #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
107 #endif /* BUG */
108 
109 typedef void (interrupt_handler_t)(void *);
110 
111 #include <asm/u-boot.h> /* boot information for Linux kernel */
112 #include <asm/global_data.h>	/* global data used for startup functions */
113 
114 #if defined(CONFIG_ENV_IS_EMBEDDED)
115 #define TOTAL_MALLOC_LEN	CONFIG_SYS_MALLOC_LEN
116 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
117 	(CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
118       defined(CONFIG_ENV_IS_IN_NVRAM)
119 #define	TOTAL_MALLOC_LEN	(CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
120 #else
121 #define	TOTAL_MALLOC_LEN	CONFIG_SYS_MALLOC_LEN
122 #endif
123 
124 /*
125  * Function Prototypes
126  */
127 int dram_init(void);
128 
129 /**
130  * dram_init_banksize() - Set up DRAM bank sizes
131  *
132  * This can be implemented by boards to set up the DRAM bank information in
133  * gd->bd->bi_dram(). It is called just before relocation, after dram_init()
134  * is called.
135  *
136  * If this is not provided, a default implementation will try to set up a
137  * single bank. It will do this if CONFIG_NR_DRAM_BANKS and
138  * CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of
139  * CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to
140  * get_effective_memsize().
141  *
142  * @return 0 if OK, -ve on error
143  */
144 int dram_init_banksize(void);
145 
146 void	hang		(void) __attribute__ ((noreturn));
147 
148 int	timer_init(void);
149 int	cpu_init(void);
150 
151 #include <display_options.h>
152 
153 /* common/main.c */
154 void	main_loop	(void);
155 int run_command(const char *cmd, int flag);
156 int run_command_repeatable(const char *cmd, int flag);
157 
158 /**
159  * Run a list of commands separated by ; or even \0
160  *
161  * Note that if 'len' is not -1, then the command does not need to be nul
162  * terminated, Memory will be allocated for the command in that case.
163  *
164  * @param cmd	List of commands to run, each separated bu semicolon
165  * @param len	Length of commands excluding terminator if known (-1 if not)
166  * @param flag	Execution flags (CMD_FLAG_...)
167  * @return 0 on success, or != 0 on error.
168  */
169 int run_command_list(const char *cmd, int len, int flag);
170 
171 /* arch/$(ARCH)/lib/board.c */
172 void board_init_f(ulong);
173 void board_init_r(gd_t *, ulong) __attribute__ ((noreturn));
174 
175 /**
176  * ulong board_init_f_alloc_reserve - allocate reserved area
177  *
178  * This function is called by each architecture very early in the start-up
179  * code to allow the C runtime to reserve space on the stack for writable
180  * 'globals' such as GD and the malloc arena.
181  *
182  * @top:	top of the reserve area, growing down.
183  * @return:	bottom of reserved area
184  */
185 ulong board_init_f_alloc_reserve(ulong top);
186 
187 /**
188  * board_init_f_init_reserve - initialize the reserved area(s)
189  *
190  * This function is called once the C runtime has allocated the reserved
191  * area on the stack. It must initialize the GD at the base of that area.
192  *
193  * @base:	top from which reservation was done
194  */
195 void board_init_f_init_reserve(ulong base);
196 
197 /**
198  * arch_setup_gd() - Set up the global_data pointer
199  *
200  * This pointer is special in some architectures and cannot easily be assigned
201  * to. For example on x86 it is implemented by adding a specific record to its
202  * Global Descriptor Table! So we we provide a function to carry out this task.
203  * For most architectures this can simply be:
204  *
205  *    gd = gd_ptr;
206  *
207  * @gd_ptr:	Pointer to global data
208  */
209 void arch_setup_gd(gd_t *gd_ptr);
210 
211 int checkboard(void);
212 int show_board_info(void);
213 int checkflash(void);
214 int checkdram(void);
215 int last_stage_init(void);
216 extern ulong monitor_flash_len;
217 int mac_read_from_eeprom(void);
218 extern u8 __dtb_dt_begin[];	/* embedded device tree blob */
219 int set_cpu_clk_info(void);
220 int mdm_init(void);
221 int print_cpuinfo(void);
222 int update_flash_size(int flash_size);
223 int arch_early_init_r(void);
224 
225 /*
226  * setup_board_extra() - Fill in extra details in the bd_t structure
227  *
228  * @return 0 if OK, -ve on error
229  */
230 int setup_board_extra(void);
231 
232 /**
233  * arch_fsp_init() - perform firmware support package init
234  *
235  * Where U-Boot relies on binary blobs to handle part of the system init, this
236  * function can be used to set up the blobs. This is used on some Intel
237  * platforms.
238  */
239 int arch_fsp_init(void);
240 
241 /**
242  * arch_cpu_init_dm() - init CPU after driver model is available
243  *
244  * This is called immediately after driver model is available before
245  * relocation. This is similar to arch_cpu_init() but is able to reference
246  * devices
247  *
248  * @return 0 if OK, -ve on error
249  */
250 int arch_cpu_init_dm(void);
251 
252 /**
253  * Reserve all necessary stacks
254  *
255  * This is used in generic board init sequence in common/board_f.c. Each
256  * architecture could provide this function to tailor the required stacks.
257  *
258  * On entry gd->start_addr_sp is pointing to the suggested top of the stack.
259  * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
260  * require only this can leave it untouched.
261  *
262  * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
263  * positions of the stack. The stack pointer(s) will be set to this later.
264  * gd->irq_sp is only required, if the architecture needs it.
265  *
266  * @return 0 if no error
267  */
268 __weak int arch_reserve_stacks(void);
269 
270 /**
271  * Show the DRAM size in a board-specific way
272  *
273  * This is used by boards to display DRAM information in their own way.
274  *
275  * @param size	Size of DRAM (which should be displayed along with other info)
276  */
277 void board_show_dram(phys_size_t size);
278 
279 /**
280  * arch_fixup_fdt() - Write arch-specific information to fdt
281  *
282  * Defined in arch/$(ARCH)/lib/bootm-fdt.c
283  *
284  * @blob:	FDT blob to write to
285  * @return 0 if ok, or -ve FDT_ERR_... on failure
286  */
287 int arch_fixup_fdt(void *blob);
288 
289 /* common/flash.c */
290 void flash_perror (int);
291 
292 /* common/cmd_source.c */
293 int	source (ulong addr, const char *fit_uname);
294 
295 extern ulong load_addr;		/* Default Load Address */
296 extern ulong save_addr;		/* Default Save Address */
297 extern ulong save_size;		/* Default Save Size */
298 
299 /* common/cmd_net.c */
300 int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
301 
302 /* common/cmd_fat.c */
303 int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
304 
305 /* common/cmd_ext2.c */
306 int do_ext2load(cmd_tbl_t *, int, int, char * const []);
307 
308 /* common/cmd_nvedit.c */
309 int	env_init     (void);
310 void	env_relocate (void);
311 int	envmatch     (uchar *, int);
312 
313 /* Avoid unfortunate conflict with libc's getenv() */
314 #ifdef CONFIG_SANDBOX
315 #define getenv uboot_getenv
316 #endif
317 char	*getenv	     (const char *);
318 int	getenv_f     (const char *name, char *buf, unsigned len);
319 ulong getenv_ulong(const char *name, int base, ulong default_val);
320 
321 /**
322  * getenv_hex() - Return an environment variable as a hex value
323  *
324  * Decode an environment as a hex number (it may or may not have a 0x
325  * prefix). If the environment variable cannot be found, or does not start
326  * with hex digits, the default value is returned.
327  *
328  * @varname:		Variable to decode
329  * @default_val:	Value to return on error
330  */
331 ulong getenv_hex(const char *varname, ulong default_val);
332 
333 /*
334  * Read an environment variable as a boolean
335  * Return -1 if variable does not exist (default to true)
336  */
337 int getenv_yesno(const char *var);
338 int	saveenv	     (void);
339 int	setenv	     (const char *, const char *);
340 int setenv_ulong(const char *varname, ulong value);
341 int setenv_hex(const char *varname, ulong value);
342 /**
343  * setenv_addr - Set an environment variable to an address in hex
344  *
345  * @varname:	Environment variable to set
346  * @addr:	Value to set it to
347  * @return 0 if ok, 1 on error
348  */
349 static inline int setenv_addr(const char *varname, const void *addr)
350 {
351 	return setenv_hex(varname, (ulong)addr);
352 }
353 
354 #ifdef CONFIG_AUTO_COMPLETE
355 int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
356 #endif
357 int get_env_id (void);
358 
359 void	pci_init      (void);
360 void	pci_init_board(void);
361 
362 int	misc_init_f   (void);
363 int	misc_init_r   (void);
364 
365 /* common/exports.c */
366 void	jumptable_init(void);
367 
368 /* common/kallsysm.c */
369 const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
370 
371 /* common/memsize.c */
372 long	get_ram_size  (long *, long);
373 phys_size_t get_effective_memsize(void);
374 
375 /* $(BOARD)/$(BOARD).c */
376 void	reset_phy     (void);
377 void	fdc_hw_init   (void);
378 
379 /* $(BOARD)/eeprom.c */
380 #ifdef CONFIG_CMD_EEPROM
381 void eeprom_init  (int bus);
382 int  eeprom_read  (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
383 int  eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
384 #else
385 /*
386  * Some EEPROM code is depecated because it used the legacy I2C interface. Add
387  * some macros here so we don't have to touch every one of those uses
388  */
389 #define eeprom_init(bus)
390 #define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
391 #define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
392 #endif
393 
394 /*
395  * Set this up regardless of board
396  * type, to prevent errors.
397  */
398 #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
399 # define CONFIG_SYS_DEF_EEPROM_ADDR 0
400 #else
401 #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
402 # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
403 #endif
404 #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
405 
406 #if defined(CONFIG_SPI)
407 extern void spi_init_f (void);
408 extern void spi_init_r (void);
409 extern ssize_t spi_read	 (uchar *, int, uchar *, int);
410 extern ssize_t spi_write (uchar *, int, uchar *, int);
411 #endif
412 
413 /* $(BOARD)/$(BOARD).c */
414 int board_early_init_f (void);
415 int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */
416 int board_late_init (void);
417 int board_postclk_init (void); /* after clocks/timebase, before env/serial */
418 int board_early_init_r (void);
419 void board_poweroff (void);
420 
421 #if defined(CONFIG_SYS_DRAM_TEST)
422 int testdram(void);
423 #endif /* CONFIG_SYS_DRAM_TEST */
424 
425 /* $(CPU)/start.S */
426 int	icache_status (void);
427 void	icache_enable (void);
428 void	icache_disable(void);
429 int	dcache_status (void);
430 void	dcache_enable (void);
431 void	dcache_disable(void);
432 void	mmu_disable(void);
433 #if defined(CONFIG_ARM)
434 void	relocate_code(ulong);
435 #else
436 void	relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
437 #endif
438 ulong	get_endaddr   (void);
439 void	trap_init     (ulong);
440 
441 /* $(CPU)/cpu.c */
442 static inline int cpumask_next(int cpu, unsigned int mask)
443 {
444 	for (cpu++; !((1 << cpu) & mask); cpu++)
445 		;
446 
447 	return cpu;
448 }
449 
450 #define for_each_cpu(iter, cpu, num_cpus, mask) \
451 	for (iter = 0, cpu = cpumask_next(-1, mask); \
452 		iter < num_cpus; \
453 		iter++, cpu = cpumask_next(cpu, mask)) \
454 
455 int	cpu_numcores  (void);
456 int	cpu_num_dspcores(void);
457 u32	cpu_mask      (void);
458 u32	cpu_dsp_mask(void);
459 int	is_core_valid (unsigned int);
460 
461 /**
462  * arch_cpu_init() - basic cpu-dependent setup for an architecture
463  *
464  * This is called after early malloc is available. It should handle any
465  * CPU- or SoC- specific init needed to continue the init sequence. See
466  * board_f.c for where it is called. If this is not provided, a default
467  * version (which does nothing) will be used.
468  */
469 int arch_cpu_init(void);
470 
471 int	checkcpu      (void);
472 int	checkicache   (void);
473 int	checkdcache   (void);
474 void	upmconfig     (unsigned int, unsigned int *, unsigned int);
475 ulong	get_tbclk     (void);
476 void	reset_misc    (void);
477 void	reset_cpu     (ulong addr);
478 void ft_cpu_setup(void *blob, bd_t *bd);
479 void ft_pci_setup(void *blob, bd_t *bd);
480 
481 void smp_set_core_boot_addr(unsigned long addr, int corenr);
482 void smp_kick_all_cpus(void);
483 
484 /* $(CPU)/serial.c */
485 int	serial_init   (void);
486 void	serial_setbrg (void);
487 void	serial_putc   (const char);
488 void	serial_putc_raw(const char);
489 void	serial_puts   (const char *);
490 int	serial_getc   (void);
491 int	serial_tstc   (void);
492 
493 /* These versions take a stdio_dev pointer */
494 struct stdio_dev;
495 int serial_stub_getc(struct stdio_dev *sdev);
496 int serial_stub_tstc(struct stdio_dev *sdev);
497 
498 /* $(CPU)/speed.c */
499 int	get_clocks (void);
500 ulong	get_bus_freq  (ulong);
501 int get_serial_clock(void);
502 
503 int	cpu_init_r    (void);
504 
505 /* $(CPU)/interrupts.c */
506 int	interrupt_init	   (void);
507 void	timer_interrupt	   (struct pt_regs *);
508 void	external_interrupt (struct pt_regs *);
509 void	irq_install_handler(int, interrupt_handler_t *, void *);
510 void	irq_free_handler   (int);
511 void	reset_timer	   (void);
512 
513 /* Return value of monotonic microsecond timer */
514 unsigned long timer_get_us(void);
515 
516 void	enable_interrupts  (void);
517 int	disable_interrupts (void);
518 
519 /* $(CPU)/.../commproc.c */
520 int	dpram_init (void);
521 uint	dpram_base(void);
522 uint	dpram_base_align(uint align);
523 uint	dpram_alloc(uint size);
524 uint	dpram_alloc_align(uint size,uint align);
525 void	bootcount_store (ulong);
526 ulong	bootcount_load (void);
527 #define BOOTCOUNT_MAGIC		0xB001C041
528 
529 /* $(CPU)/.../<eth> */
530 void mii_init (void);
531 
532 /* $(CPU)/.../lcd.c */
533 ulong	lcd_setmem (ulong);
534 
535 /* $(CPU)/.../video.c */
536 ulong	video_setmem (ulong);
537 
538 /* arch/$(ARCH)/lib/cache.c */
539 void	enable_caches(void);
540 void	flush_cache   (unsigned long, unsigned long);
541 void	flush_dcache_all(void);
542 void	flush_dcache_range(unsigned long start, unsigned long stop);
543 void	invalidate_dcache_range(unsigned long start, unsigned long stop);
544 void	invalidate_dcache_all(void);
545 void	invalidate_icache_all(void);
546 
547 enum {
548 	/* Disable caches (else flush caches but leave them active) */
549 	CBL_DISABLE_CACHES		= 1 << 0,
550 	CBL_SHOW_BOOTSTAGE_REPORT	= 1 << 1,
551 
552 	CBL_ALL				= 3,
553 };
554 
555 /**
556  * Clean up ready for linux
557  *
558  * @param flags		Flags to control what is done
559  */
560 int cleanup_before_linux_select(int flags);
561 
562 /* arch/$(ARCH)/lib/ticks.S */
563 uint64_t get_ticks(void);
564 void	wait_ticks    (unsigned long);
565 
566 /* arch/$(ARCH)/lib/time.c */
567 ulong	usec2ticks    (unsigned long usec);
568 ulong	ticks2usec    (unsigned long ticks);
569 
570 /* lib/gunzip.c */
571 int gunzip(void *, int, unsigned char *, unsigned long *);
572 int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
573 						int stoponerr, int offset);
574 
575 /**
576  * gzwrite progress indicators: defined weak to allow board-specific
577  * overrides:
578  *
579  *	gzwrite_progress_init called on startup
580  *	gzwrite_progress called during decompress/write loop
581  *	gzwrite_progress_finish called at end of loop to
582  *		indicate success (retcode=0) or failure
583  */
584 void gzwrite_progress_init(u64 expected_size);
585 
586 void gzwrite_progress(int iteration,
587 		     u64 bytes_written,
588 		     u64 total_bytes);
589 
590 void gzwrite_progress_finish(int retcode,
591 			     u64 totalwritten,
592 			     u64 totalsize,
593 			     u32 expected_crc,
594 			     u32 calculated_crc);
595 
596 /**
597  * decompress and write gzipped image from memory to block device
598  *
599  * @param	src		compressed image address
600  * @param	len		compressed image length in bytes
601  * @param	dev		block device descriptor
602  * @param	szwritebuf	bytes per write (pad to erase size)
603  * @param	startoffs	offset in bytes of first write
604  * @param	szexpected	expected uncompressed length
605  *				may be zero to use gzip trailer
606  *				for files under 4GiB
607  */
608 int gzwrite(unsigned char *src, int len,
609 	    struct blk_desc *dev,
610 	    unsigned long szwritebuf,
611 	    u64 startoffs,
612 	    u64 szexpected);
613 
614 /* lib/lz4_wrapper.c */
615 int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn);
616 
617 /* lib/qsort.c */
618 void qsort(void *base, size_t nmemb, size_t size,
619 	   int(*compar)(const void *, const void *));
620 int strcmp_compar(const void *, const void *);
621 
622 /* lib/uuid.c */
623 #include <uuid.h>
624 
625 /* lib/vsprintf.c */
626 #include <vsprintf.h>
627 
628 /* lib/strmhz.c */
629 char *	strmhz(char *buf, unsigned long hz);
630 
631 /* lib/crc32.c */
632 #include <u-boot/crc.h>
633 
634 /* lib/rand.c */
635 #define RAND_MAX -1U
636 void srand(unsigned int seed);
637 unsigned int rand(void);
638 unsigned int rand_r(unsigned int *seedp);
639 
640 /*
641  * STDIO based functions (can always be used)
642  */
643 /* serial stuff */
644 int	serial_printf (const char *fmt, ...)
645 		__attribute__ ((format (__printf__, 1, 2)));
646 /* stdin */
647 int	getc(void);
648 int	tstc(void);
649 
650 /* stdout */
651 #if !defined(CONFIG_SPL_BUILD) || \
652 	(defined(CONFIG_TPL_BUILD) && defined(CONFIG_TPL_SERIAL_SUPPORT)) || \
653 	(defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) && \
654 		defined(CONFIG_SPL_SERIAL_SUPPORT))
655 void	putc(const char c);
656 void	puts(const char *s);
657 int	printf(const char *fmt, ...)
658 		__attribute__ ((format (__printf__, 1, 2)));
659 int	vprintf(const char *fmt, va_list args);
660 #else
661 #define	putc(...) do { } while (0)
662 #define puts(...) do { } while (0)
663 #define printf(...) do { } while (0)
664 #define vprintf(...) do { } while (0)
665 #endif
666 
667 /* stderr */
668 #define eputc(c)		fputc(stderr, c)
669 #define eputs(s)		fputs(stderr, s)
670 #define eprintf(fmt,args...)	fprintf(stderr,fmt ,##args)
671 
672 /*
673  * FILE based functions (can only be used AFTER relocation!)
674  */
675 #define stdin		0
676 #define stdout		1
677 #define stderr		2
678 #define MAX_FILES	3
679 
680 int	fprintf(int file, const char *fmt, ...)
681 		__attribute__ ((format (__printf__, 2, 3)));
682 void	fputs(int file, const char *s);
683 void	fputc(int file, const char c);
684 int	ftstc(int file);
685 int	fgetc(int file);
686 
687 /* lib/gzip.c */
688 int gzip(void *dst, unsigned long *lenp,
689 		unsigned char *src, unsigned long srclen);
690 int zzip(void *dst, unsigned long *lenp, unsigned char *src,
691 		unsigned long srclen, int stoponerr,
692 		int (*func)(unsigned long, unsigned long));
693 
694 /* lib/net_utils.c */
695 #include <net.h>
696 static inline struct in_addr getenv_ip(char *var)
697 {
698 	return string_to_ip(getenv(var));
699 }
700 
701 int	pcmcia_init (void);
702 
703 #ifdef CONFIG_LED_STATUS
704 # include <status_led.h>
705 #endif
706 
707 #include <bootstage.h>
708 
709 #ifdef CONFIG_SHOW_ACTIVITY
710 void show_activity(int arg);
711 #endif
712 
713 /* Multicore arch functions */
714 #ifdef CONFIG_MP
715 int cpu_status(int nr);
716 int cpu_reset(int nr);
717 int cpu_disable(int nr);
718 int cpu_release(int nr, int argc, char * const argv[]);
719 #endif
720 
721 #else	/* __ASSEMBLY__ */
722 
723 /* Drop a C type modifier (like in 3UL) for constants used in assembly. */
724 #define _AC(X, Y)       X
725 
726 #endif	/* __ASSEMBLY__ */
727 
728 /* Put only stuff here that the assembler can digest */
729 
730 /* Declare an unsigned long constant digestable both by C and an assembler. */
731 #define UL(x)           _AC(x, UL)
732 
733 #ifdef CONFIG_POST
734 #define CONFIG_HAS_POST
735 #ifndef CONFIG_POST_ALT_LIST
736 #define CONFIG_POST_STD_LIST
737 #endif
738 #endif
739 
740 #ifdef CONFIG_INIT_CRITICAL
741 #error CONFIG_INIT_CRITICAL is deprecated!
742 #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
743 #endif
744 
745 #define ROUND(a,b)		(((a) + (b) - 1) & ~((b) - 1))
746 
747 /*
748  * check_member() - Check the offset of a structure member
749  *
750  * @structure:	Name of structure (e.g. global_data)
751  * @member:	Name of member (e.g. baudrate)
752  * @offset:	Expected offset in bytes
753  */
754 #define check_member(structure, member, offset) _Static_assert( \
755 	offsetof(struct structure, member) == offset, \
756 	"`struct " #structure "` offset for `" #member "` is not " #offset)
757 
758 /* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */
759 #ifdef CONFIG_EFI_STUB
760 #define ll_boot_init()	false
761 #else
762 #define ll_boot_init()	true
763 #endif
764 
765 /* Pull in stuff for the build system */
766 #ifdef DO_DEPS_ONLY
767 # include <environment.h>
768 #endif
769 
770 #endif	/* __COMMON_H_ */
771