xref: /openbmc/u-boot/include/common.h (revision 71b75644)
1 /*
2  * (C) Copyright 2000-2009
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #ifndef __COMMON_H_
9 #define __COMMON_H_	1
10 
11 #ifndef __ASSEMBLY__		/* put C only stuff in this section */
12 
13 typedef unsigned char		uchar;
14 typedef volatile unsigned long	vu_long;
15 typedef volatile unsigned short vu_short;
16 typedef volatile unsigned char	vu_char;
17 
18 /* Allow sharing constants with type modifiers between C and assembly. */
19 #define _AC(X, Y)       (X##Y)
20 
21 #include <config.h>
22 #include <errno.h>
23 #include <time.h>
24 #include <asm-offsets.h>
25 #include <linux/bitops.h>
26 #include <linux/bug.h>
27 #include <linux/delay.h>
28 #include <linux/types.h>
29 #include <linux/printk.h>
30 #include <linux/string.h>
31 #include <linux/stringify.h>
32 #include <asm/ptrace.h>
33 #include <stdarg.h>
34 #include <stdio.h>
35 #include <linux/kernel.h>
36 
37 #include <part.h>
38 #include <flash.h>
39 #include <image.h>
40 
41 /* Bring in printf format macros if inttypes.h is included */
42 #define __STDC_FORMAT_MACROS
43 
44 #ifdef __LP64__
45 #define CONFIG_SYS_SUPPORT_64BIT_DATA
46 #endif
47 
48 #include <log.h>
49 
50 typedef void (interrupt_handler_t)(void *);
51 
52 #include <asm/u-boot.h> /* boot information for Linux kernel */
53 #include <asm/global_data.h>	/* global data used for startup functions */
54 
55 #if defined(CONFIG_ENV_IS_EMBEDDED)
56 #define TOTAL_MALLOC_LEN	CONFIG_SYS_MALLOC_LEN
57 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
58 	(CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
59       defined(CONFIG_ENV_IS_IN_NVRAM)
60 #define	TOTAL_MALLOC_LEN	(CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
61 #else
62 #define	TOTAL_MALLOC_LEN	CONFIG_SYS_MALLOC_LEN
63 #endif
64 
65 /* startup functions */
66 #include <init.h>
67 
68 /*
69  * Function Prototypes
70  */
71 int dram_init(void);
72 
73 /**
74  * dram_init_banksize() - Set up DRAM bank sizes
75  *
76  * This can be implemented by boards to set up the DRAM bank information in
77  * gd->bd->bi_dram(). It is called just before relocation, after dram_init()
78  * is called.
79  *
80  * If this is not provided, a default implementation will try to set up a
81  * single bank. It will do this if CONFIG_NR_DRAM_BANKS and
82  * CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of
83  * CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to
84  * get_effective_memsize().
85  *
86  * @return 0 if OK, -ve on error
87  */
88 int dram_init_banksize(void);
89 
90 void	hang		(void) __attribute__ ((noreturn));
91 
92 int	timer_init(void);
93 int	cpu_init(void);
94 
95 #include <display_options.h>
96 
97 /* common/main.c */
98 void	main_loop	(void);
99 int run_command(const char *cmd, int flag);
100 int run_command_repeatable(const char *cmd, int flag);
101 
102 /**
103  * Run a list of commands separated by ; or even \0
104  *
105  * Note that if 'len' is not -1, then the command does not need to be nul
106  * terminated, Memory will be allocated for the command in that case.
107  *
108  * @param cmd	List of commands to run, each separated bu semicolon
109  * @param len	Length of commands excluding terminator if known (-1 if not)
110  * @param flag	Execution flags (CMD_FLAG_...)
111  * @return 0 on success, or != 0 on error.
112  */
113 int run_command_list(const char *cmd, int len, int flag);
114 
115 /* arch/$(ARCH)/lib/board.c */
116 void board_init_f(ulong);
117 void board_init_r(gd_t *, ulong) __attribute__ ((noreturn));
118 
119 /**
120  * ulong board_init_f_alloc_reserve - allocate reserved area
121  *
122  * This function is called by each architecture very early in the start-up
123  * code to allow the C runtime to reserve space on the stack for writable
124  * 'globals' such as GD and the malloc arena.
125  *
126  * @top:	top of the reserve area, growing down.
127  * @return:	bottom of reserved area
128  */
129 ulong board_init_f_alloc_reserve(ulong top);
130 
131 /**
132  * board_init_f_init_reserve - initialize the reserved area(s)
133  *
134  * This function is called once the C runtime has allocated the reserved
135  * area on the stack. It must initialize the GD at the base of that area.
136  *
137  * @base:	top from which reservation was done
138  */
139 void board_init_f_init_reserve(ulong base);
140 
141 /**
142  * arch_setup_gd() - Set up the global_data pointer
143  *
144  * This pointer is special in some architectures and cannot easily be assigned
145  * to. For example on x86 it is implemented by adding a specific record to its
146  * Global Descriptor Table! So we we provide a function to carry out this task.
147  * For most architectures this can simply be:
148  *
149  *    gd = gd_ptr;
150  *
151  * @gd_ptr:	Pointer to global data
152  */
153 void arch_setup_gd(gd_t *gd_ptr);
154 
155 int checkboard(void);
156 int show_board_info(void);
157 int last_stage_init(void);
158 extern ulong monitor_flash_len;
159 int mac_read_from_eeprom(void);
160 extern u8 __dtb_dt_begin[];	/* embedded device tree blob */
161 extern u8 __dtb_dt_spl_begin[];	/* embedded device tree blob for SPL/TPL */
162 int set_cpu_clk_info(void);
163 int print_cpuinfo(void);
164 int update_flash_size(int flash_size);
165 int arch_early_init_r(void);
166 
167 /**
168  * arch_fsp_init() - perform firmware support package init
169  *
170  * Where U-Boot relies on binary blobs to handle part of the system init, this
171  * function can be used to set up the blobs. This is used on some Intel
172  * platforms.
173  */
174 int arch_fsp_init(void);
175 
176 /**
177  * arch_cpu_init_dm() - init CPU after driver model is available
178  *
179  * This is called immediately after driver model is available before
180  * relocation. This is similar to arch_cpu_init() but is able to reference
181  * devices
182  *
183  * @return 0 if OK, -ve on error
184  */
185 int arch_cpu_init_dm(void);
186 
187 /**
188  * Reserve all necessary stacks
189  *
190  * This is used in generic board init sequence in common/board_f.c. Each
191  * architecture could provide this function to tailor the required stacks.
192  *
193  * On entry gd->start_addr_sp is pointing to the suggested top of the stack.
194  * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
195  * require only this can leave it untouched.
196  *
197  * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
198  * positions of the stack. The stack pointer(s) will be set to this later.
199  * gd->irq_sp is only required, if the architecture needs it.
200  *
201  * @return 0 if no error
202  */
203 __weak int arch_reserve_stacks(void);
204 
205 /**
206  * Show the DRAM size in a board-specific way
207  *
208  * This is used by boards to display DRAM information in their own way.
209  *
210  * @param size	Size of DRAM (which should be displayed along with other info)
211  */
212 void board_show_dram(phys_size_t size);
213 
214 /**
215  * arch_fixup_fdt() - Write arch-specific information to fdt
216  *
217  * Defined in arch/$(ARCH)/lib/bootm-fdt.c
218  *
219  * @blob:	FDT blob to write to
220  * @return 0 if ok, or -ve FDT_ERR_... on failure
221  */
222 int arch_fixup_fdt(void *blob);
223 
224 int reserve_mmu(void);
225 /* common/flash.c */
226 void flash_perror (int);
227 
228 /* common/cmd_source.c */
229 int	source (ulong addr, const char *fit_uname);
230 
231 extern ulong load_addr;		/* Default Load Address */
232 extern ulong save_addr;		/* Default Save Address */
233 extern ulong save_size;		/* Default Save Size */
234 
235 /* common/cmd_net.c */
236 int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
237 
238 /* common/cmd_fat.c */
239 int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
240 
241 /* common/cmd_ext2.c */
242 int do_ext2load(cmd_tbl_t *, int, int, char * const []);
243 
244 /* common/cmd_nvedit.c */
245 int	env_init     (void);
246 void	env_relocate (void);
247 int	envmatch     (uchar *, int);
248 
249 /**
250  * env_get() - Look up the value of an environment variable
251  *
252  * In U-Boot proper this can be called before relocation (which is when the
253  * environment is loaded from storage, i.e. GD_FLG_ENV_READY is 0). In that
254  * case this function calls env_get_f().
255  *
256  * @varname:	Variable to look up
257  * @return value of variable, or NULL if not found
258  */
259 char *env_get(const char *varname);
260 
261 /**
262  * env_get_f() - Look up the value of an environment variable (early)
263  *
264  * This function is called from env_get() if the environment has not been
265  * loaded yet (GD_FLG_ENV_READY flag is 0). Some environment locations will
266  * support reading the value (slowly) and some will not.
267  *
268  * @varname:	Variable to look up
269  * @return value of variable, or NULL if not found
270  */
271 int env_get_f(const char *name, char *buf, unsigned len);
272 
273 /**
274  * env_get_ulong() - Return an environment variable as an integer value
275  *
276  * Most U-Boot environment variables store hex values. For those which store
277  * (e.g.) base-10 integers, this function can be used to read the value.
278  *
279  * @name:	Variable to look up
280  * @base:	Base to use (e.g. 10 for base 10, 2 for binary)
281  * @default_val: Default value to return if no value is found
282  * @return the value found, or @default_val if none
283  */
284 ulong env_get_ulong(const char *name, int base, ulong default_val);
285 
286 /**
287  * env_get_hex() - Return an environment variable as a hex value
288  *
289  * Decode an environment as a hex number (it may or may not have a 0x
290  * prefix). If the environment variable cannot be found, or does not start
291  * with hex digits, the default value is returned.
292  *
293  * @varname:		Variable to decode
294  * @default_val:	Value to return on error
295  */
296 ulong env_get_hex(const char *varname, ulong default_val);
297 
298 /*
299  * Read an environment variable as a boolean
300  * Return -1 if variable does not exist (default to true)
301  */
302 int env_get_yesno(const char *var);
303 
304 /**
305  * env_set() - set an environment variable
306  *
307  * This sets or deletes the value of an environment variable. For setting the
308  * value the variable is created if it does not already exist.
309  *
310  * @varname: Variable to adjust
311  * @value: Value to set for the variable, or NULL or "" to delete the variable
312  * @return 0 if OK, 1 on error
313  */
314 int env_set(const char *varname, const char *value);
315 
316 /**
317  * env_set_ulong() - set an environment variable to an integer
318  *
319  * @varname: Variable to adjust
320  * @value: Value to set for the variable (will be converted to a string)
321  * @return 0 if OK, 1 on error
322  */
323 int env_set_ulong(const char *varname, ulong value);
324 
325 /**
326  * env_set_hex() - set an environment variable to a hex value
327  *
328  * @varname: Variable to adjust
329  * @value: Value to set for the variable (will be converted to a hex string)
330  * @return 0 if OK, 1 on error
331  */
332 int env_set_hex(const char *varname, ulong value);
333 
334 /**
335  * env_set_addr - Set an environment variable to an address in hex
336  *
337  * @varname:	Environment variable to set
338  * @addr:	Value to set it to
339  * @return 0 if ok, 1 on error
340  */
341 static inline int env_set_addr(const char *varname, const void *addr)
342 {
343 	return env_set_hex(varname, (ulong)addr);
344 }
345 
346 #ifdef CONFIG_AUTO_COMPLETE
347 int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
348 #endif
349 int get_env_id (void);
350 
351 void	pci_init      (void);
352 void	pci_init_board(void);
353 
354 #if defined(CONFIG_DTB_RESELECT)
355 int	embedded_dtb_select(void);
356 #endif
357 
358 int	misc_init_f   (void);
359 int	misc_init_r   (void);
360 #if defined(CONFIG_VID)
361 int	init_func_vid(void);
362 #endif
363 
364 /* common/exports.c */
365 void	jumptable_init(void);
366 
367 /* common/kallsysm.c */
368 const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
369 
370 /* common/memsize.c */
371 long	get_ram_size  (long *, long);
372 phys_size_t get_effective_memsize(void);
373 
374 /* $(BOARD)/$(BOARD).c */
375 void	reset_phy     (void);
376 void	fdc_hw_init   (void);
377 
378 /* $(BOARD)/eeprom.c */
379 #ifdef CONFIG_CMD_EEPROM
380 void eeprom_init  (int bus);
381 int  eeprom_read  (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
382 int  eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
383 #else
384 /*
385  * Some EEPROM code is depecated because it used the legacy I2C interface. Add
386  * some macros here so we don't have to touch every one of those uses
387  */
388 #define eeprom_init(bus)
389 #define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
390 #define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
391 #endif
392 
393 /*
394  * Set this up regardless of board
395  * type, to prevent errors.
396  */
397 #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
398 # define CONFIG_SYS_DEF_EEPROM_ADDR 0
399 #else
400 #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
401 # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
402 #endif
403 #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
404 
405 #if defined(CONFIG_SPI)
406 extern void spi_init_f (void);
407 extern void spi_init_r (void);
408 extern ssize_t spi_read	 (uchar *, int, uchar *, int);
409 extern ssize_t spi_write (uchar *, int, uchar *, int);
410 #endif
411 
412 /* $(BOARD)/$(BOARD).c */
413 int board_early_init_f (void);
414 int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */
415 int board_late_init (void);
416 int board_postclk_init (void); /* after clocks/timebase, before env/serial */
417 int board_early_init_r (void);
418 
419 #if defined(CONFIG_SYS_DRAM_TEST)
420 int testdram(void);
421 #endif /* CONFIG_SYS_DRAM_TEST */
422 
423 /* $(CPU)/start.S */
424 int	icache_status (void);
425 void	icache_enable (void);
426 void	icache_disable(void);
427 int	dcache_status (void);
428 void	dcache_enable (void);
429 void	dcache_disable(void);
430 void	mmu_disable(void);
431 #if defined(CONFIG_ARM)
432 void	relocate_code(ulong);
433 #else
434 void	relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
435 #endif
436 ulong	get_endaddr   (void);
437 void	trap_init     (ulong);
438 
439 /* $(CPU)/cpu.c */
440 static inline int cpumask_next(int cpu, unsigned int mask)
441 {
442 	for (cpu++; !((1 << cpu) & mask); cpu++)
443 		;
444 
445 	return cpu;
446 }
447 
448 #define for_each_cpu(iter, cpu, num_cpus, mask) \
449 	for (iter = 0, cpu = cpumask_next(-1, mask); \
450 		iter < num_cpus; \
451 		iter++, cpu = cpumask_next(cpu, mask)) \
452 
453 int	cpu_numcores  (void);
454 int	cpu_num_dspcores(void);
455 u32	cpu_mask      (void);
456 u32	cpu_dsp_mask(void);
457 int	is_core_valid (unsigned int);
458 
459 void s_init(void);
460 
461 int	checkcpu      (void);
462 int	checkicache   (void);
463 int	checkdcache   (void);
464 void	upmconfig     (unsigned int, unsigned int *, unsigned int);
465 ulong	get_tbclk     (void);
466 void	reset_misc    (void);
467 void	reset_cpu     (ulong addr);
468 void ft_cpu_setup(void *blob, bd_t *bd);
469 void ft_pci_setup(void *blob, bd_t *bd);
470 
471 void smp_set_core_boot_addr(unsigned long addr, int corenr);
472 void smp_kick_all_cpus(void);
473 
474 /* $(CPU)/serial.c */
475 int	serial_init   (void);
476 void	serial_setbrg (void);
477 void	serial_putc   (const char);
478 void	serial_putc_raw(const char);
479 void	serial_puts   (const char *);
480 int	serial_getc   (void);
481 int	serial_tstc   (void);
482 
483 /* $(CPU)/speed.c */
484 int	get_clocks (void);
485 ulong	get_bus_freq  (ulong);
486 int get_serial_clock(void);
487 
488 int	cpu_init_r    (void);
489 
490 /* $(CPU)/interrupts.c */
491 int	interrupt_init	   (void);
492 void	timer_interrupt	   (struct pt_regs *);
493 void	external_interrupt (struct pt_regs *);
494 void	irq_install_handler(int, interrupt_handler_t *, void *);
495 void	irq_free_handler   (int);
496 void	reset_timer	   (void);
497 
498 /* Return value of monotonic microsecond timer */
499 unsigned long timer_get_us(void);
500 
501 void	enable_interrupts  (void);
502 int	disable_interrupts (void);
503 
504 /* $(CPU)/.../commproc.c */
505 int	dpram_init (void);
506 uint	dpram_base(void);
507 uint	dpram_base_align(uint align);
508 uint	dpram_alloc(uint size);
509 uint	dpram_alloc_align(uint size,uint align);
510 void	bootcount_store (ulong);
511 ulong	bootcount_load (void);
512 #define BOOTCOUNT_MAGIC		0xB001C041
513 
514 /* $(CPU)/.../<eth> */
515 void mii_init (void);
516 
517 /* $(CPU)/.../lcd.c */
518 ulong	lcd_setmem (ulong);
519 
520 /* $(CPU)/.../video.c */
521 ulong	video_setmem (ulong);
522 
523 /* arch/$(ARCH)/lib/cache.c */
524 void	enable_caches(void);
525 void	flush_cache   (unsigned long, unsigned long);
526 void	flush_dcache_all(void);
527 void	flush_dcache_range(unsigned long start, unsigned long stop);
528 void	invalidate_dcache_range(unsigned long start, unsigned long stop);
529 void	invalidate_dcache_all(void);
530 void	invalidate_icache_all(void);
531 
532 enum {
533 	/* Disable caches (else flush caches but leave them active) */
534 	CBL_DISABLE_CACHES		= 1 << 0,
535 	CBL_SHOW_BOOTSTAGE_REPORT	= 1 << 1,
536 
537 	CBL_ALL				= 3,
538 };
539 
540 /**
541  * Clean up ready for linux
542  *
543  * @param flags		Flags to control what is done
544  */
545 int cleanup_before_linux_select(int flags);
546 
547 /* arch/$(ARCH)/lib/ticks.S */
548 uint64_t get_ticks(void);
549 void	wait_ticks    (unsigned long);
550 
551 /* arch/$(ARCH)/lib/time.c */
552 ulong	usec2ticks    (unsigned long usec);
553 ulong	ticks2usec    (unsigned long ticks);
554 
555 /* lib/gunzip.c */
556 int gzip_parse_header(const unsigned char *src, unsigned long len);
557 int gunzip(void *, int, unsigned char *, unsigned long *);
558 int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
559 						int stoponerr, int offset);
560 
561 /**
562  * gzwrite progress indicators: defined weak to allow board-specific
563  * overrides:
564  *
565  *	gzwrite_progress_init called on startup
566  *	gzwrite_progress called during decompress/write loop
567  *	gzwrite_progress_finish called at end of loop to
568  *		indicate success (retcode=0) or failure
569  */
570 void gzwrite_progress_init(u64 expected_size);
571 
572 void gzwrite_progress(int iteration,
573 		     u64 bytes_written,
574 		     u64 total_bytes);
575 
576 void gzwrite_progress_finish(int retcode,
577 			     u64 totalwritten,
578 			     u64 totalsize,
579 			     u32 expected_crc,
580 			     u32 calculated_crc);
581 
582 /**
583  * decompress and write gzipped image from memory to block device
584  *
585  * @param	src		compressed image address
586  * @param	len		compressed image length in bytes
587  * @param	dev		block device descriptor
588  * @param	szwritebuf	bytes per write (pad to erase size)
589  * @param	startoffs	offset in bytes of first write
590  * @param	szexpected	expected uncompressed length
591  *				may be zero to use gzip trailer
592  *				for files under 4GiB
593  */
594 int gzwrite(unsigned char *src, int len,
595 	    struct blk_desc *dev,
596 	    unsigned long szwritebuf,
597 	    u64 startoffs,
598 	    u64 szexpected);
599 
600 /* lib/lz4_wrapper.c */
601 int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn);
602 
603 /* lib/qsort.c */
604 void qsort(void *base, size_t nmemb, size_t size,
605 	   int(*compar)(const void *, const void *));
606 int strcmp_compar(const void *, const void *);
607 
608 /* lib/uuid.c */
609 #include <uuid.h>
610 
611 /* lib/vsprintf.c */
612 #include <vsprintf.h>
613 
614 /* lib/strmhz.c */
615 char *	strmhz(char *buf, unsigned long hz);
616 
617 /* lib/crc32.c */
618 #include <u-boot/crc.h>
619 
620 /* lib/rand.c */
621 #define RAND_MAX -1U
622 void srand(unsigned int seed);
623 unsigned int rand(void);
624 unsigned int rand_r(unsigned int *seedp);
625 
626 /*
627  * STDIO based functions (can always be used)
628  */
629 /* serial stuff */
630 int	serial_printf (const char *fmt, ...)
631 		__attribute__ ((format (__printf__, 1, 2)));
632 
633 /* lib/gzip.c */
634 int gzip(void *dst, unsigned long *lenp,
635 		unsigned char *src, unsigned long srclen);
636 int zzip(void *dst, unsigned long *lenp, unsigned char *src,
637 		unsigned long srclen, int stoponerr,
638 		int (*func)(unsigned long, unsigned long));
639 
640 /* lib/net_utils.c */
641 #include <net.h>
642 static inline struct in_addr env_get_ip(char *var)
643 {
644 	return string_to_ip(env_get(var));
645 }
646 
647 int	pcmcia_init (void);
648 
649 #ifdef CONFIG_LED_STATUS
650 # include <status_led.h>
651 #endif
652 
653 #include <bootstage.h>
654 
655 #ifdef CONFIG_SHOW_ACTIVITY
656 void show_activity(int arg);
657 #endif
658 
659 /* Multicore arch functions */
660 #ifdef CONFIG_MP
661 int cpu_status(int nr);
662 int cpu_reset(int nr);
663 int cpu_disable(int nr);
664 int cpu_release(int nr, int argc, char * const argv[]);
665 #endif
666 
667 #else	/* __ASSEMBLY__ */
668 
669 /* Drop a C type modifier (like in 3UL) for constants used in assembly. */
670 #define _AC(X, Y)       X
671 
672 #endif	/* __ASSEMBLY__ */
673 
674 /* Put only stuff here that the assembler can digest */
675 
676 /* Declare an unsigned long constant digestable both by C and an assembler. */
677 #define UL(x)           _AC(x, UL)
678 
679 #ifdef CONFIG_POST
680 #define CONFIG_HAS_POST
681 #ifndef CONFIG_POST_ALT_LIST
682 #define CONFIG_POST_STD_LIST
683 #endif
684 #endif
685 
686 #ifdef CONFIG_INIT_CRITICAL
687 #error CONFIG_INIT_CRITICAL is deprecated!
688 #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
689 #endif
690 
691 #define ROUND(a,b)		(((a) + (b) - 1) & ~((b) - 1))
692 
693 /*
694  * check_member() - Check the offset of a structure member
695  *
696  * @structure:	Name of structure (e.g. global_data)
697  * @member:	Name of member (e.g. baudrate)
698  * @offset:	Expected offset in bytes
699  */
700 #define check_member(structure, member, offset) _Static_assert( \
701 	offsetof(struct structure, member) == offset, \
702 	"`struct " #structure "` offset for `" #member "` is not " #offset)
703 
704 /* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */
705 #ifdef CONFIG_EFI_STUB
706 #define ll_boot_init()	false
707 #else
708 #define ll_boot_init()	true
709 #endif
710 
711 /* Pull in stuff for the build system */
712 #ifdef DO_DEPS_ONLY
713 # include <environment.h>
714 #endif
715 
716 #endif	/* __COMMON_H_ */
717