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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
13typedef unsigned char uchar;
14typedef volatile unsigned long vu_long;
15typedef volatile unsigned short vu_short;
16typedef 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 */
90void __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
109typedef 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 */
127int 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 */
144int dram_init_banksize(void);
145
146void hang (void) __attribute__ ((noreturn));
147
148int timer_init(void);
149int cpu_init(void);
150
151#include <display_options.h>
152
153/* common/main.c */
154void main_loop (void);
155int run_command(const char *cmd, int flag);
156int 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 */
169int run_command_list(const char *cmd, int len, int flag);
170
171/* arch/$(ARCH)/lib/board.c */
172void board_init_f(ulong);
173void 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 */
185ulong 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 */
195void 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 */
209void arch_setup_gd(gd_t *gd_ptr);
210
211int checkboard(void);
212int show_board_info(void);
213int checkflash(void);
214int checkdram(void);
215int last_stage_init(void);
216extern ulong monitor_flash_len;
217int mac_read_from_eeprom(void);
218extern u8 __dtb_dt_begin[]; /* embedded device tree blob */
219int set_cpu_clk_info(void);
220int mdm_init(void);
221int print_cpuinfo(void);
222int update_flash_size(int flash_size);
223int 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 */
230int 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 */
239int 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 */
250int 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 */
277void 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 */
287int arch_fixup_fdt(void *blob);
288
289/* common/flash.c */
290void flash_perror (int);
291
292/* common/cmd_source.c */
293int source (ulong addr, const char *fit_uname);
294
295extern ulong load_addr; /* Default Load Address */
296extern ulong save_addr; /* Default Save Address */
297extern ulong save_size; /* Default Save Size */
298
299/* common/cmd_net.c */
300int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
301
302/* common/cmd_fat.c */
303int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
304
305/* common/cmd_ext2.c */
306int do_ext2load(cmd_tbl_t *, int, int, char * const []);
307
308/* common/cmd_nvedit.c */
309int env_init (void);
310void env_relocate (void);
311int envmatch (uchar *, int);
312
313/* Avoid unfortunate conflict with libc's getenv() */
314#ifdef CONFIG_SANDBOX
315#define getenv uboot_getenv
316#endif
317char *getenv (const char *);
318int getenv_f (const char *name, char *buf, unsigned len);
319ulong 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 */
331ulong 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 */
337int getenv_yesno(const char *var);
338int saveenv (void);
339int setenv (const char *, const char *);
340int setenv_ulong(const char *varname, ulong value);
341int 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 */
349static 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
355int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
356#endif
357int get_env_id (void);
358
359void pci_init (void);
360void pci_init_board(void);
361
362int misc_init_f (void);
363int misc_init_r (void);
364
365/* common/exports.c */
366void jumptable_init(void);
367
368/* common/kallsysm.c */
369const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
370
371/* common/memsize.c */
372long get_ram_size (long *, long);
373phys_size_t get_effective_memsize(void);
374
375/* $(BOARD)/$(BOARD).c */
376void reset_phy (void);
377void fdc_hw_init (void);
378
379/* $(BOARD)/eeprom.c */
380#ifdef CONFIG_CMD_EEPROM
381void eeprom_init (int bus);
382int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
383int 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)
407extern void spi_init_f (void);
408extern void spi_init_r (void);
409extern ssize_t spi_read (uchar *, int, uchar *, int);
410extern ssize_t spi_write (uchar *, int, uchar *, int);
411#endif
412
413/* $(BOARD)/$(BOARD).c */
414int board_early_init_f (void);
415int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */
416int board_late_init (void);
417int board_postclk_init (void); /* after clocks/timebase, before env/serial */
418int board_early_init_r (void);
419void board_poweroff (void);
420
421#if defined(CONFIG_SYS_DRAM_TEST)
422int testdram(void);
423#endif /* CONFIG_SYS_DRAM_TEST */
424
425/* $(CPU)/start.S */
426int icache_status (void);
427void icache_enable (void);
428void icache_disable(void);
429int dcache_status (void);
430void dcache_enable (void);
431void dcache_disable(void);
432void mmu_disable(void);
433#if defined(CONFIG_ARM)
434void relocate_code(ulong);
435#else
436void relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
437#endif
438ulong get_endaddr (void);
439void trap_init (ulong);
440
441/* $(CPU)/cpu.c */
442static 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
455int cpu_numcores (void);
456int cpu_num_dspcores(void);
457u32 cpu_mask (void);
458u32 cpu_dsp_mask(void);
459int 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 */
469int arch_cpu_init(void);
470
471int checkcpu (void);
472int checkicache (void);
473int checkdcache (void);
474void upmconfig (unsigned int, unsigned int *, unsigned int);
475ulong get_tbclk (void);
476void reset_misc (void);
477void reset_cpu (ulong addr);
478void ft_cpu_setup(void *blob, bd_t *bd);
479void ft_pci_setup(void *blob, bd_t *bd);
480
481void smp_set_core_boot_addr(unsigned long addr, int corenr);
482void smp_kick_all_cpus(void);
483
484/* $(CPU)/serial.c */
485int serial_init (void);
486void serial_setbrg (void);
487void serial_putc (const char);
488void serial_putc_raw(const char);
489void serial_puts (const char *);
490int serial_getc (void);
491int serial_tstc (void);
492
493/* These versions take a stdio_dev pointer */
494struct stdio_dev;
495int serial_stub_getc(struct stdio_dev *sdev);
496int serial_stub_tstc(struct stdio_dev *sdev);
497
498/* $(CPU)/speed.c */
499int get_clocks (void);
500ulong get_bus_freq (ulong);
501int get_serial_clock(void);
502
503int cpu_init_r (void);
504
505/* $(CPU)/interrupts.c */
506int interrupt_init (void);
507void timer_interrupt (struct pt_regs *);
508void external_interrupt (struct pt_regs *);
509void irq_install_handler(int, interrupt_handler_t *, void *);
510void irq_free_handler (int);
511void reset_timer (void);
512
513/* Return value of monotonic microsecond timer */
514unsigned long timer_get_us(void);
515
516void enable_interrupts (void);
517int disable_interrupts (void);
518
519/* $(CPU)/.../commproc.c */
520int dpram_init (void);
521uint dpram_base(void);
522uint dpram_base_align(uint align);
523uint dpram_alloc(uint size);
524uint dpram_alloc_align(uint size,uint align);
525void bootcount_store (ulong);
526ulong bootcount_load (void);
527#define BOOTCOUNT_MAGIC 0xB001C041
528
529/* $(CPU)/.../<eth> */
530void mii_init (void);
531
532/* $(CPU)/.../lcd.c */
533ulong lcd_setmem (ulong);
534
535/* $(CPU)/.../video.c */
536ulong video_setmem (ulong);
537
538/* arch/$(ARCH)/lib/cache.c */
539void enable_caches(void);
540void flush_cache (unsigned long, unsigned long);
541void flush_dcache_all(void);
542void flush_dcache_range(unsigned long start, unsigned long stop);
543void invalidate_dcache_range(unsigned long start, unsigned long stop);
544void invalidate_dcache_all(void);
545void invalidate_icache_all(void);
546
547enum {
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 */
560int cleanup_before_linux_select(int flags);
561
562/* arch/$(ARCH)/lib/ticks.S */
563uint64_t get_ticks(void);
564void wait_ticks (unsigned long);
565
566/* arch/$(ARCH)/lib/time.c */
567ulong usec2ticks (unsigned long usec);
568ulong ticks2usec (unsigned long ticks);
569
570/* lib/gunzip.c */
571int gunzip(void *, int, unsigned char *, unsigned long *);
572int 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 */
584void gzwrite_progress_init(u64 expected_size);
585
586void gzwrite_progress(int iteration,
587 u64 bytes_written,
588 u64 total_bytes);
589
590void 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 */
608int 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 */
615int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn);
616
617/* lib/qsort.c */
618void qsort(void *base, size_t nmemb, size_t size,
619 int(*compar)(const void *, const void *));
620int 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 */
629char * 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
636void srand(unsigned int seed);
637unsigned int rand(void);
638unsigned int rand_r(unsigned int *seedp);
639
640/*
641 * STDIO based functions (can always be used)
642 */
643/* serial stuff */
644int serial_printf (const char *fmt, ...)
645 __attribute__ ((format (__printf__, 1, 2)));
646/* stdin */
647int getc(void);
648int 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))
655void putc(const char c);
656void puts(const char *s);
657int printf(const char *fmt, ...)
658 __attribute__ ((format (__printf__, 1, 2)));
659int 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
680int fprintf(int file, const char *fmt, ...)
681 __attribute__ ((format (__printf__, 2, 3)));
682void fputs(int file, const char *s);
683void fputc(int file, const char c);
684int ftstc(int file);
685int fgetc(int file);
686
687/* lib/gzip.c */
688int gzip(void *dst, unsigned long *lenp,
689 unsigned char *src, unsigned long srclen);
690int 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>
696static inline struct in_addr getenv_ip(char *var)
697{
698 return string_to_ip(getenv(var));
699}
700
701int 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
710void show_activity(int arg);
711#endif
712
713/* Multicore arch functions */
714#ifdef CONFIG_MP
715int cpu_status(int nr);
716int cpu_reset(int nr);
717int cpu_disable(int nr);
718int 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_ */