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83d290c5 1/* SPDX-License-Identifier: GPL-2.0+ */
e2211743 2/*
3b74e7ec 3 * (C) Copyright 2000-2009
e2211743 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
e2211743
WD
5 */
6
7#ifndef __COMMON_H_
d0b8feef 8#define __COMMON_H_ 1
e2211743 9
fcd3c87e
WD
10#ifndef __ASSEMBLY__ /* put C only stuff in this section */
11
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12typedef unsigned char uchar;
13typedef volatile unsigned long vu_long;
180d3f74 14typedef volatile unsigned short vu_short;
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15typedef volatile unsigned char vu_char;
16
17#include <config.h>
2307ea40 18#include <errno.h>
a7b81769 19#include <time.h>
25ddd1fb 20#include <asm-offsets.h>
e2211743 21#include <linux/bitops.h>
0a70fb4c 22#include <linux/bug.h>
5bc516ed 23#include <linux/delay.h>
e2211743 24#include <linux/types.h>
b44b3026 25#include <linux/printk.h>
e2211743 26#include <linux/string.h>
9aed5080 27#include <linux/stringify.h>
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28#include <asm/ptrace.h>
29#include <stdarg.h>
7fea7b1a 30#include <stdio.h>
cba1da49 31#include <linux/kernel.h>
85043159 32
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WD
33#include <part.h>
34#include <flash.h>
35#include <image.h>
36
4d1fd7f1
YS
37#ifdef __LP64__
38#define CONFIG_SYS_SUPPORT_64BIT_DATA
39#endif
40
0e98b0a6 41#include <log.h>
21726a7a 42
c83bf6a2 43typedef void (interrupt_handler_t)(void *);
e2211743 44
c83bf6a2 45#include <asm/u-boot.h> /* boot information for Linux kernel */
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WD
46#include <asm/global_data.h> /* global data used for startup functions */
47
3fbeeea6
HS
48#if defined(CONFIG_ENV_IS_EMBEDDED)
49#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
50#elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
51 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
52 defined(CONFIG_ENV_IS_IN_NVRAM)
53#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
54#else
55#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
56#endif
c7de829c 57
d6f87712
PD
58/* startup functions, used in:
59 * common/board_f.c
11f86cba 60 * common/init/board_init.c
e2c219cd 61 * common/board_r.c
fc22ee21 62 * common/board_info.c
d6f87712 63 */
dafa84d2
PD
64#include <init.h>
65
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66/*
67 * Function Prototypes
68 */
c83bf6a2 69void hang (void) __attribute__ ((noreturn));
e2211743 70
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71int cpu_init(void);
72
2ea09c83 73#include <display_options.h>
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74
75/* common/main.c */
76void main_loop (void);
009dde19 77int run_command(const char *cmd, int flag);
1d43bfd2 78int run_command_repeatable(const char *cmd, int flag);
d51004a8
SG
79
80/**
81 * Run a list of commands separated by ; or even \0
82 *
83 * Note that if 'len' is not -1, then the command does not need to be nul
84 * terminated, Memory will be allocated for the command in that case.
85 *
86 * @param cmd List of commands to run, each separated bu semicolon
87 * @param len Length of commands excluding terminator if known (-1 if not)
88 * @param flag Execution flags (CMD_FLAG_...)
89 * @return 0 on success, or != 0 on error.
90 */
91int run_command_list(const char *cmd, int len, int flag);
e2211743 92
e2c219cd
PD
93int checkflash(void);
94int checkdram(void);
6ab6b2af 95extern u8 __dtb_dt_begin[]; /* embedded device tree blob */
9bd76b80 96extern u8 __dtb_dt_spl_begin[]; /* embedded device tree blob for SPL/TPL */
d6f87712 97int mdm_init(void);
e2211743 98
15a33e49
SG
99/**
100 * Show the DRAM size in a board-specific way
101 *
102 * This is used by boards to display DRAM information in their own way.
103 *
104 * @param size Size of DRAM (which should be displayed along with other info)
105 */
ea11b401 106void board_show_dram(phys_size_t size);
15a33e49 107
7b78d643
AG
108/**
109 * Get the uppermost pointer that is valid to access
110 *
111 * Some systems may not map all of their address space. This function allows
112 * boards to indicate what their highest support pointer value is for DRAM
113 * access.
114 *
115 * @param total_size Size of U-Boot (unused?)
116 */
117ulong board_get_usable_ram_top(ulong total_size);
118
13d06981 119/**
e29607ed 120 * arch_fixup_fdt() - Write arch-specific information to fdt
13d06981 121 *
e29607ed 122 * Defined in arch/$(ARCH)/lib/bootm-fdt.c
13d06981
SG
123 *
124 * @blob: FDT blob to write to
125 * @return 0 if ok, or -ve FDT_ERR_... on failure
126 */
e29607ed 127int arch_fixup_fdt(void *blob);
13d06981 128
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129/* common/flash.c */
130void flash_perror (int);
131
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132/* common/cmd_source.c */
133int source (ulong addr, const char *fit_uname);
e2211743 134
c83bf6a2 135extern ulong load_addr; /* Default Load Address */
1aec244a
SG
136extern ulong save_addr; /* Default Save Address */
137extern ulong save_size; /* Default Save Size */
e2211743 138
06283a64
JH
139/* common/cmd_net.c */
140int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
141
669df7e4
RH
142/* common/cmd_fat.c */
143int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
144
145/* common/cmd_ext2.c */
146int do_ext2load(cmd_tbl_t *, int, int, char * const []);
147
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148/* common/cmd_nvedit.c */
149int env_init (void);
150void env_relocate (void);
26a41790 151int envmatch (uchar *, int);
20f86a0a 152
00caae6d
SG
153/**
154 * env_get() - Look up the value of an environment variable
155 *
156 * In U-Boot proper this can be called before relocation (which is when the
157 * environment is loaded from storage, i.e. GD_FLG_ENV_READY is 0). In that
158 * case this function calls env_get_f().
159 *
160 * @varname: Variable to look up
161 * @return value of variable, or NULL if not found
162 */
163char *env_get(const char *varname);
164
165/**
166 * env_get_f() - Look up the value of an environment variable (early)
167 *
168 * This function is called from env_get() if the environment has not been
169 * loaded yet (GD_FLG_ENV_READY flag is 0). Some environment locations will
170 * support reading the value (slowly) and some will not.
171 *
172 * @varname: Variable to look up
173 * @return value of variable, or NULL if not found
174 */
175int env_get_f(const char *name, char *buf, unsigned len);
176
bfebc8c9
SG
177/**
178 * env_get_ulong() - Return an environment variable as an integer value
179 *
180 * Most U-Boot environment variables store hex values. For those which store
181 * (e.g.) base-10 integers, this function can be used to read the value.
182 *
183 * @name: Variable to look up
184 * @base: Base to use (e.g. 10 for base 10, 2 for binary)
185 * @default_val: Default value to return if no value is found
186 * @return the value found, or @default_val if none
187 */
188ulong env_get_ulong(const char *name, int base, ulong default_val);
76b8f79c
SG
189
190/**
bfebc8c9 191 * env_get_hex() - Return an environment variable as a hex value
76b8f79c
SG
192 *
193 * Decode an environment as a hex number (it may or may not have a 0x
194 * prefix). If the environment variable cannot be found, or does not start
195 * with hex digits, the default value is returned.
196 *
197 * @varname: Variable to decode
198 * @default_val: Value to return on error
199 */
bfebc8c9 200ulong env_get_hex(const char *varname, ulong default_val);
76b8f79c 201
ec8a252c
JH
202/*
203 * Read an environment variable as a boolean
204 * Return -1 if variable does not exist (default to true)
205 */
bfebc8c9 206int env_get_yesno(const char *var);
382bee57
SG
207
208/**
209 * env_set() - set an environment variable
210 *
211 * This sets or deletes the value of an environment variable. For setting the
212 * value the variable is created if it does not already exist.
213 *
214 * @varname: Variable to adjust
215 * @value: Value to set for the variable, or NULL or "" to delete the variable
216 * @return 0 if OK, 1 on error
217 */
218int env_set(const char *varname, const char *value);
219
bfc59966 220/**
018f5303
SG
221 * env_set_ulong() - set an environment variable to an integer
222 *
223 * @varname: Variable to adjust
224 * @value: Value to set for the variable (will be converted to a string)
225 * @return 0 if OK, 1 on error
226 */
227int env_set_ulong(const char *varname, ulong value);
228
229/**
230 * env_set_hex() - set an environment variable to a hex value
231 *
232 * @varname: Variable to adjust
233 * @value: Value to set for the variable (will be converted to a hex string)
234 * @return 0 if OK, 1 on error
235 */
236int env_set_hex(const char *varname, ulong value);
237
238/**
239 * env_set_addr - Set an environment variable to an address in hex
bfc59966 240 *
1bce2aeb 241 * @varname: Environment variable to set
bfc59966
SG
242 * @addr: Value to set it to
243 * @return 0 if ok, 1 on error
244 */
018f5303 245static inline int env_set_addr(const char *varname, const void *addr)
bfc59966 246{
018f5303 247 return env_set_hex(varname, (ulong)addr);
bfc59966
SG
248}
249
04a85b3b
WD
250#ifdef CONFIG_AUTO_COMPLETE
251int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
252#endif
2f70c49e 253int get_env_id (void);
04a85b3b 254
c83bf6a2 255void pci_init_board(void);
e2211743 256
27b207fd
WD
257/* common/exports.c */
258void jumptable_init(void);
259
ecb1dc89
MF
260/* common/kallsysm.c */
261const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
262
c83bf6a2 263/* common/memsize.c */
a55d23cc 264long get_ram_size (long *, long);
e3866163 265phys_size_t get_effective_memsize(void);
c83bf6a2 266
e2211743
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267/* $(BOARD)/$(BOARD).c */
268void reset_phy (void);
c83bf6a2 269void fdc_hw_init (void);
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270
271/* $(BOARD)/eeprom.c */
eb5ba3ae 272#ifdef CONFIG_CMD_EEPROM
354e3ed7 273void eeprom_init (int bus);
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WD
274int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
275int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
eb5ba3ae
SG
276#else
277/*
278 * Some EEPROM code is depecated because it used the legacy I2C interface. Add
279 * some macros here so we don't have to touch every one of those uses
280 */
281#define eeprom_init(bus)
282#define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
283#define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
284#endif
e2211743 285
f1b1f770 286#if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR)
6d0f6bcf 287# define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
548738b4 288#endif
e2211743 289
e2211743 290/* $(BOARD)/$(BOARD).c */
c837dcb1 291int board_early_init_f (void);
2a792753 292int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */
c837dcb1 293int board_late_init (void);
e2211743 294int board_postclk_init (void); /* after clocks/timebase, before env/serial */
c837dcb1 295int board_early_init_r (void);
e2211743 296
6d0f6bcf 297#if defined(CONFIG_SYS_DRAM_TEST)
e2211743 298int testdram(void);
6d0f6bcf 299#endif /* CONFIG_SYS_DRAM_TEST */
e2211743
WD
300
301/* $(CPU)/start.S */
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WD
302int icache_status (void);
303void icache_enable (void);
304void icache_disable(void);
305int dcache_status (void);
306void dcache_enable (void);
307void dcache_disable(void);
2c451f78 308void mmu_disable(void);
5c6db120
BT
309#if defined(CONFIG_ARM)
310void relocate_code(ulong);
311#else
312void relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
959eaa74 313#endif
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WD
314ulong get_endaddr (void);
315void trap_init (ulong);
6e2941d7 316
e2211743 317/* $(CPU)/cpu.c */
fbb9ecf7
TT
318static inline int cpumask_next(int cpu, unsigned int mask)
319{
320 for (cpu++; !((1 << cpu) & mask); cpu++)
321 ;
322
323 return cpu;
324}
325
326#define for_each_cpu(iter, cpu, num_cpus, mask) \
327 for (iter = 0, cpu = cpumask_next(-1, mask); \
328 iter < num_cpus; \
329 iter++, cpu = cpumask_next(cpu, mask)) \
330
0e870980 331int cpu_numcores (void);
b8bf0adc 332int cpu_num_dspcores(void);
fbb9ecf7 333u32 cpu_mask (void);
b8bf0adc 334u32 cpu_dsp_mask(void);
fbb9ecf7 335int is_core_valid (unsigned int);
cbcbf71b 336
026d7958
DD
337void s_init(void);
338
e2211743
WD
339int checkcpu (void);
340int checkicache (void);
341int checkdcache (void);
342void upmconfig (unsigned int, unsigned int *, unsigned int);
343ulong get_tbclk (void);
1fb4dab2 344void reset_misc (void);
3ec924a3 345void reset_cpu (ulong addr);
6a16e0df 346void ft_cpu_setup(void *blob, bd_t *bd);
6a16e0df 347void ft_pci_setup(void *blob, bd_t *bd);
6a16e0df 348
ba6a1698
AP
349void smp_set_core_boot_addr(unsigned long addr, int corenr);
350void smp_kick_all_cpus(void);
e2211743
WD
351
352/* $(CPU)/serial.c */
d5bb4f86
AS
353struct serial_device_info;
354
e2211743
WD
355int serial_init (void);
356void serial_setbrg (void);
357void serial_putc (const char);
756f586a 358void serial_putc_raw(const char);
e2211743 359void serial_puts (const char *);
e2211743
WD
360int serial_getc (void);
361int serial_tstc (void);
ac7f5db9 362int serial_getconfig(uint *config);
d7c09684 363int serial_setconfig(uint config);
d5bb4f86 364int serial_getinfo(struct serial_device_info *info);
e2211743
WD
365
366/* $(CPU)/speed.c */
367int get_clocks (void);
e2211743 368ulong get_bus_freq (ulong);
550650dd 369int get_serial_clock(void);
e2211743 370
e2211743 371/* $(CPU)/interrupts.c */
c83bf6a2
WD
372int interrupt_init (void);
373void timer_interrupt (struct pt_regs *);
e2211743
WD
374void external_interrupt (struct pt_regs *);
375void irq_install_handler(int, interrupt_handler_t *, void *);
376void irq_free_handler (int);
377void reset_timer (void);
b2e16a85
SG
378
379/* Return value of monotonic microsecond timer */
380unsigned long timer_get_us(void);
381
e2211743
WD
382void enable_interrupts (void);
383int disable_interrupts (void);
384
385/* $(CPU)/.../commproc.c */
386int dpram_init (void);
387uint dpram_base(void);
388uint dpram_base_align(uint align);
389uint dpram_alloc(uint size);
390uint dpram_alloc_align(uint size,uint align);
bdccc4fe
WD
391void bootcount_store (ulong);
392ulong bootcount_load (void);
e2211743
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393
394/* $(CPU)/.../<eth> */
c5bded3c 395void mii_init (void);
e2211743
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396
397/* $(CPU)/.../lcd.c */
398ulong lcd_setmem (ulong);
399
e2211743
WD
400/* $(CPU)/.../video.c */
401ulong video_setmem (ulong);
402
ea0364f1 403/* arch/$(ARCH)/lib/cache.c */
cba4b180 404void enable_caches(void);
e2211743 405void flush_cache (unsigned long, unsigned long);
2c451f78 406void flush_dcache_all(void);
03d3bfb0
SR
407void flush_dcache_range(unsigned long start, unsigned long stop);
408void invalidate_dcache_range(unsigned long start, unsigned long stop);
2c451f78
A
409void invalidate_dcache_all(void);
410void invalidate_icache_all(void);
0db5bca8 411
4d24a11e
SG
412enum {
413 /* Disable caches (else flush caches but leave them active) */
414 CBL_DISABLE_CACHES = 1 << 0,
415 CBL_SHOW_BOOTSTAGE_REPORT = 1 << 1,
416
417 CBL_ALL = 3,
418};
419
420/**
421 * Clean up ready for linux
422 *
423 * @param flags Flags to control what is done
424 */
425int cleanup_before_linux_select(int flags);
426
ea0364f1 427/* arch/$(ARCH)/lib/ticks.S */
19ea4678 428uint64_t get_ticks(void);
e2211743
WD
429void wait_ticks (unsigned long);
430
ea0364f1 431/* arch/$(ARCH)/lib/time.c */
e2211743
WD
432ulong usec2ticks (unsigned long usec);
433ulong ticks2usec (unsigned long ticks);
e2211743 434
78acc472 435/* lib/gunzip.c */
376ddf9d 436int gzip_parse_header(const unsigned char *src, unsigned long len);
87d93a1b
WW
437int gunzip(void *, int, unsigned char *, unsigned long *);
438int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
439 int stoponerr, int offset);
440
918e9ebb
EN
441/**
442 * gzwrite progress indicators: defined weak to allow board-specific
443 * overrides:
444 *
445 * gzwrite_progress_init called on startup
446 * gzwrite_progress called during decompress/write loop
447 * gzwrite_progress_finish called at end of loop to
448 * indicate success (retcode=0) or failure
449 */
450void gzwrite_progress_init(u64 expected_size);
451
452void gzwrite_progress(int iteration,
453 u64 bytes_written,
454 u64 total_bytes);
455
456void gzwrite_progress_finish(int retcode,
457 u64 totalwritten,
458 u64 totalsize,
459 u32 expected_crc,
460 u32 calculated_crc);
461
462/**
463 * decompress and write gzipped image from memory to block device
464 *
465 * @param src compressed image address
466 * @param len compressed image length in bytes
467 * @param dev block device descriptor
468 * @param szwritebuf bytes per write (pad to erase size)
469 * @param startoffs offset in bytes of first write
470 * @param szexpected expected uncompressed length
471 * may be zero to use gzip trailer
472 * for files under 4GiB
473 */
474int gzwrite(unsigned char *src, int len,
4101f687 475 struct blk_desc *dev,
918e9ebb
EN
476 unsigned long szwritebuf,
477 u64 startoffs,
478 u64 szexpected);
479
027b728d
JW
480/* lib/lz4_wrapper.c */
481int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn);
482
54c6977e
WD
483/* lib/qsort.c */
484void qsort(void *base, size_t nmemb, size_t size,
485 int(*compar)(const void *, const void *));
560d424b 486int strcmp_compar(const void *, const void *);
54c6977e 487
e11938ea 488/* lib/uuid.c */
d718ded0 489#include <uuid.h>
e11938ea 490
78acc472 491/* lib/vsprintf.c */
9785c905 492#include <vsprintf.h>
e2211743 493
78acc472 494/* lib/strmhz.c */
55f7934d 495char * strmhz(char *buf, unsigned long hz);
0768b7a8 496
78acc472 497/* lib/crc32.c */
449609f5 498#include <u-boot/crc.h>
e2211743 499
9acf1ca5 500/* lib/rand.c */
9acf1ca5
MW
501#define RAND_MAX -1U
502void srand(unsigned int seed);
503unsigned int rand(void);
504unsigned int rand_r(unsigned int *seedp);
9acf1ca5 505
e2211743
WD
506/*
507 * STDIO based functions (can always be used)
508 */
e2211743 509/* serial stuff */
d9c27253 510int serial_printf (const char *fmt, ...)
dc4b0b38 511 __attribute__ ((format (__printf__, 1, 2)));
e2211743 512
88d52c6a
LW
513/* lib/gzip.c */
514int gzip(void *dst, unsigned long *lenp,
515 unsigned char *src, unsigned long srclen);
516int zzip(void *dst, unsigned long *lenp, unsigned char *src,
517 unsigned long srclen, int stoponerr,
518 int (*func)(unsigned long, unsigned long));
519
4ef8d53c
JH
520/* lib/net_utils.c */
521#include <net.h>
723806cc 522static inline struct in_addr env_get_ip(char *var)
4ef8d53c 523{
00caae6d 524 return string_to_ip(env_get(var));
4ef8d53c
JH
525}
526
e2211743
WD
527int pcmcia_init (void);
528
2d8d190c 529#ifdef CONFIG_LED_STATUS
fb364bec
WD
530# include <status_led.h>
531#endif
097e1783
SG
532
533#include <bootstage.h>
e2211743 534
48522bb5
JH
535#ifdef CONFIG_SHOW_ACTIVITY
536void show_activity(int arg);
537#endif
538
fcd3c87e
WD
539/* Multicore arch functions */
540#ifdef CONFIG_MP
20b016a3
MS
541int cpu_status(u32 nr);
542int cpu_reset(u32 nr);
543int cpu_disable(u32 nr);
544int cpu_release(u32 nr, int argc, char * const argv[]);
fcd3c87e
WD
545#endif
546
2a6713b0
AP
547#else /* __ASSEMBLY__ */
548
2a6713b0 549#endif /* __ASSEMBLY__ */
fcd3c87e
WD
550
551/* Put only stuff here that the assembler can digest */
552
553#ifdef CONFIG_POST
554#define CONFIG_HAS_POST
800eb096
MZ
555#ifndef CONFIG_POST_ALT_LIST
556#define CONFIG_POST_STD_LIST
557#endif
fcd3c87e
WD
558#endif
559
155cfb5e 560#define ROUND(a,b) (((a) + (b) - 1) & ~((b) - 1))
4b03ac8b 561
c9689ca3
SG
562/*
563 * check_member() - Check the offset of a structure member
564 *
565 * @structure: Name of structure (e.g. global_data)
566 * @member: Name of member (e.g. baudrate)
567 * @offset: Expected offset in bytes
568 */
569#define check_member(structure, member, offset) _Static_assert( \
570 offsetof(struct structure, member) == offset, \
571 "`struct " #structure "` offset for `" #member "` is not " #offset)
572
476476e7
SG
573/* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */
574#ifdef CONFIG_EFI_STUB
575#define ll_boot_init() false
576#else
577#define ll_boot_init() true
578#endif
579
c3eb3fe4
MF
580/* Pull in stuff for the build system */
581#ifdef DO_DEPS_ONLY
582# include <environment.h>
583#endif
584
e2211743 585#endif /* __COMMON_H_ */