2 * (C) Copyright 2000-2009
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 #undef _LINUX_CONFIG_H
28 #define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
30 #ifndef __ASSEMBLY__ /* put C only stuff in this section */
32 typedef unsigned char uchar;
33 typedef volatile unsigned long vu_long;
34 typedef volatile unsigned short vu_short;
35 typedef volatile unsigned char vu_char;
38 #include <asm-offsets.h>
39 #include <linux/bitops.h>
40 #include <linux/types.h>
41 #include <linux/string.h>
42 #include <asm/ptrace.h>
44 #if defined(CONFIG_PCI) && (defined(CONFIG_4xx) && !defined(CONFIG_AP1000))
47 #if defined(CONFIG_8xx)
48 #include <asm/8xx_immap.h>
49 #if defined(CONFIG_MPC852) || defined(CONFIG_MPC852T) || \
50 defined(CONFIG_MPC859) || defined(CONFIG_MPC859T) || \
51 defined(CONFIG_MPC859DSL) || \
52 defined(CONFIG_MPC866) || defined(CONFIG_MPC866T) || \
53 defined(CONFIG_MPC866P)
54 # define CONFIG_MPC866_FAMILY 1
55 #elif defined(CONFIG_MPC870) \
56 || defined(CONFIG_MPC875) \
57 || defined(CONFIG_MPC880) \
58 || defined(CONFIG_MPC885)
59 # define CONFIG_MPC885_FAMILY 1
61 #if defined(CONFIG_MPC860) \
62 || defined(CONFIG_MPC860T) \
63 || defined(CONFIG_MPC866_FAMILY) \
64 || defined(CONFIG_MPC885_FAMILY)
65 # define CONFIG_MPC86x 1
67 #elif defined(CONFIG_5xx)
68 #include <asm/5xx_immap.h>
69 #elif defined(CONFIG_MPC5xxx)
71 #elif defined(CONFIG_MPC512X)
72 #include <asm/immap_512x.h>
73 #elif defined(CONFIG_MPC8220)
74 #include <asm/immap_8220.h>
75 #elif defined(CONFIG_8260)
76 #if defined(CONFIG_MPC8247) \
77 || defined(CONFIG_MPC8248) \
78 || defined(CONFIG_MPC8271) \
79 || defined(CONFIG_MPC8272)
80 #define CONFIG_MPC8272_FAMILY 1
82 #if defined(CONFIG_MPC8272_FAMILY)
83 #define CONFIG_MPC8260 1
85 #include <asm/immap_8260.h>
89 #include <asm/immap_86xx.h>
93 #include <asm/immap_85xx.h>
97 #include <asm/immap_83xx.h>
100 #include <asm/ppc4xx.h>
103 #include <board/hymod/hymod.h>
106 #define asmlinkage /* nothing */
108 #ifdef CONFIG_BLACKFIN
109 #include <asm/blackfin.h>
111 #ifdef CONFIG_SOC_DA8XX
112 #include <asm/arch/hardware.h>
120 #define debug(fmt,args...) printf (fmt ,##args)
121 #define debugX(level,fmt,args...) if (DEBUG>=level) printf(fmt,##args);
123 #define debug(fmt,args...)
124 #define debugX(level,fmt,args...)
127 #define error(fmt, args...) do { \
128 printf("ERROR: " fmt "\nat %s:%d/%s()\n", \
129 ##args, __FILE__, __LINE__, __func__); \
134 printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
137 #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
140 typedef void (interrupt_handler_t)(void *);
142 #include <asm/u-boot.h> /* boot information for Linux kernel */
143 #include <asm/global_data.h> /* global data used for startup functions */
146 * enable common handling for all TQM8xxL/M boards:
147 * - CONFIG_TQM8xxM will be defined for all TQM8xxM boards
148 * - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards
149 * and for the TQM885D board
151 #if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \
152 defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \
153 defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M)
154 # ifndef CONFIG_TQM8xxM
155 # define CONFIG_TQM8xxM
158 #if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \
159 defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \
160 defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM) || \
161 defined(CONFIG_TQM885D)
162 # ifndef CONFIG_TQM8xxL
163 # define CONFIG_TQM8xxL
167 #ifndef CONFIG_SERIAL_MULTI
169 #if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2) \
170 || defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
171 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
173 #define CONFIG_SERIAL_MULTI 1
177 #endif /* CONFIG_SERIAL_MULTI */
180 * General Purpose Utilities
183 ({ typeof (X) __x = (X), __y = (Y); \
184 (__x < __y) ? __x : __y; })
187 ({ typeof (X) __x = (X), __y = (Y); \
188 (__x > __y) ? __x : __y; })
190 #define MIN(x, y) min(x, y)
191 #define MAX(x, y) max(x, y)
193 #if defined(CONFIG_ENV_IS_EMBEDDED)
194 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
195 #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
196 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
197 defined(CONFIG_ENV_IS_IN_NVRAM)
198 #define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
200 #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
204 * container_of - cast a member of a structure out to the containing structure
205 * @ptr: the pointer to the member.
206 * @type: the type of the container struct this is embedded in.
207 * @member: the name of the member within the struct.
210 #define container_of(ptr, type, member) ({ \
211 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
212 (type *)( (char *)__mptr - offsetof(type,member) );})
215 * Function Prototypes
218 void hang (void) __attribute__ ((noreturn));
221 phys_size_t initdram (int);
222 int display_options (void);
223 void print_size(unsigned long long, const char *);
224 int print_buffer (ulong addr, void* data, uint width, uint count, uint linelen);
227 void main_loop (void);
228 int run_command (const char *cmd, int flag);
229 int readline (const char *const prompt);
230 int readline_into_buffer (const char *const prompt, char * buffer);
231 int parse_line (char *, char *[]);
232 void init_cmd_timeout(void);
233 void reset_cmd_timeout(void);
235 /* arch/$(ARCH)/lib/board.c */
236 void board_init_f (ulong) __attribute__ ((noreturn));
237 void board_init_r (gd_t *, ulong) __attribute__ ((noreturn));
238 int checkboard (void);
239 int checkflash (void);
240 int checkdram (void);
241 int last_stage_init(void);
242 extern ulong monitor_flash_len;
243 int mac_read_from_eeprom(void);
246 void flash_perror (int);
248 /* common/cmd_source.c */
249 int source (ulong addr, const char *fit_uname);
251 extern ulong load_addr; /* Default Load Address */
253 /* common/cmd_doc.c */
254 void doc_probe(unsigned long physadr);
256 /* common/cmd_nvedit.c */
258 void env_relocate (void);
259 int envmatch (uchar *, int);
260 char *getenv (char *);
261 int getenv_f (char *name, char *buf, unsigned len);
263 #ifdef CONFIG_PPC /* ARM version to be fixed! */
264 int inline setenv (char *, char *);
266 int setenv (char *, char *);
267 #endif /* CONFIG_PPC */
269 # include <asm/mach-types.h>
270 # include <asm/setup.h>
271 # include <asm/u-boot-arm.h> /* ARM version to be fixed! */
272 #endif /* CONFIG_ARM */
273 #ifdef CONFIG_I386 /* x86 version to be fixed! */
274 # include <asm/u-boot-i386.h>
275 #endif /* CONFIG_I386 */
277 #ifdef CONFIG_AUTO_COMPLETE
278 int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
280 int get_env_id (void);
282 void pci_init (void);
283 void pci_init_board(void);
284 void pciinfo (int, int);
286 #if defined(CONFIG_PCI) && (defined(CONFIG_4xx) && !defined(CONFIG_AP1000))
287 int pci_pre_init (struct pci_controller *);
288 int is_pci_host (struct pci_controller *);
291 #if defined(CONFIG_PCI) && (defined(CONFIG_440) || defined(CONFIG_405EX))
292 # if defined(CONFIG_SYS_PCI_TARGET_INIT)
293 void pci_target_init (struct pci_controller *);
295 # if defined(CONFIG_SYS_PCI_MASTER_INIT)
296 void pci_master_init (struct pci_controller *);
298 #if defined(CONFIG_440SPE) || \
299 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
300 defined(CONFIG_405EX)
301 void pcie_setup_hoses(int busno);
305 int misc_init_f (void);
306 int misc_init_r (void);
308 /* common/exports.c */
309 void jumptable_init(void);
311 /* common/kallsysm.c */
312 const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
315 void api_init (void);
317 /* common/memsize.c */
318 long get_ram_size (volatile long *, long);
320 /* $(BOARD)/$(BOARD).c */
321 void reset_phy (void);
322 void fdc_hw_init (void);
324 /* $(BOARD)/eeprom.c */
325 void eeprom_init (void);
327 int eeprom_probe (unsigned dev_addr, unsigned offset);
329 int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
330 int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
332 extern uchar pic_read (uchar reg);
333 extern void pic_write (uchar reg, uchar val);
337 * Set this up regardless of board
338 * type, to prevent errors.
340 #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
341 # define CONFIG_SYS_DEF_EEPROM_ADDR 0
343 #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
344 # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
346 #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
348 #if defined(CONFIG_SPI)
349 extern void spi_init_f (void);
350 extern void spi_init_r (void);
351 extern ssize_t spi_read (uchar *, int, uchar *, int);
352 extern ssize_t spi_write (uchar *, int, uchar *, int);
355 #ifdef CONFIG_RPXCLASSIC
356 void rpxclassic_init (void);
359 void rpxlite_init (void);
362 /* $(BOARD)/mbx8xx.c */
363 void mbx_init (void);
364 void board_serial_init (void);
365 void board_ether_init (void);
369 /* $(BOARD)/hermes.c */
370 void hermes_start_lxt980 (int speed);
373 #ifdef CONFIG_EVB64260
374 void evb64260_init(void);
375 void debug_led(int, int);
376 void display_mem_map(void);
377 void perform_soft_reset(void);
380 /* $(BOARD)/$(BOARD).c */
381 int board_early_init_f (void);
382 int board_late_init (void);
383 int board_postclk_init (void); /* after clocks/timebase, before env/serial */
384 int board_early_init_r (void);
385 void board_poweroff (void);
387 #if defined(CONFIG_SYS_DRAM_TEST)
389 #endif /* CONFIG_SYS_DRAM_TEST */
392 #if defined(CONFIG_5xx) || \
394 uint get_immr (uint);
397 #if defined(CONFIG_MPC5xxx)
402 uint rd_ic_cst (void);
403 void wr_ic_cst (uint);
404 void wr_ic_adr (uint);
405 uint rd_dc_cst (void);
406 void wr_dc_cst (uint);
407 void wr_dc_adr (uint);
408 int icache_status (void);
409 void icache_enable (void);
410 void icache_disable(void);
411 int dcache_status (void);
412 void dcache_enable (void);
413 void dcache_disable(void);
414 void relocate_code (ulong, gd_t *, ulong) __attribute__ ((noreturn));
415 ulong get_endaddr (void);
416 void trap_init (ulong);
417 #if defined (CONFIG_4xx) || \
418 defined (CONFIG_MPC5xxx) || \
419 defined (CONFIG_74xx_7xx) || \
420 defined (CONFIG_74x) || \
421 defined (CONFIG_75x) || \
422 defined (CONFIG_74xx) || \
423 defined (CONFIG_MPC8220) || \
424 defined (CONFIG_MPC85xx) || \
425 defined (CONFIG_MPC86xx) || \
426 defined (CONFIG_MPC83xx)
427 unsigned char in8(unsigned int);
428 void out8(unsigned int, unsigned char);
429 unsigned short in16(unsigned int);
430 unsigned short in16r(unsigned int);
431 void out16(unsigned int, unsigned short value);
432 void out16r(unsigned int, unsigned short value);
433 unsigned long in32(unsigned int);
434 unsigned long in32r(unsigned int);
435 void out32(unsigned int, unsigned long value);
436 void out32r(unsigned int, unsigned long value);
437 void ppcDcbf(unsigned long value);
438 void ppcDcbi(unsigned long value);
440 void ppcDcbz(unsigned long value);
442 #if defined (CONFIG_MICROBLAZE)
443 unsigned short in16(unsigned int);
444 void out16(unsigned int, unsigned short value);
447 #if defined (CONFIG_MPC83xx)
448 void ppcDWload(unsigned int *addr, unsigned int *ret);
449 void ppcDWstore(unsigned int *addr, unsigned int *value);
453 int cpu_numcores (void);
456 int checkicache (void);
457 int checkdcache (void);
458 void upmconfig (unsigned int, unsigned int *, unsigned int);
459 ulong get_tbclk (void);
460 void reset_cpu (ulong addr);
461 #if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
462 void ft_cpu_setup(void *blob, bd_t *bd);
464 void ft_pci_setup(void *blob, bd_t *bd);
469 /* $(CPU)/serial.c */
470 int serial_init (void);
471 void serial_exit (void);
472 void serial_setbrg (void);
473 void serial_putc (const char);
474 void serial_putc_raw(const char);
475 void serial_puts (const char *);
476 int serial_getc (void);
477 int serial_tstc (void);
479 void _serial_setbrg (const int);
480 void _serial_putc (const char, const int);
481 void _serial_putc_raw(const char, const int);
482 void _serial_puts (const char *, const int);
483 int _serial_getc (const int);
484 int _serial_tstc (const int);
487 int get_clocks (void);
488 int get_clocks_866 (void);
489 int sdram_adjust_866 (void);
490 int adjust_sdram_tbs_8xx (void);
491 #if defined(CONFIG_8260)
492 int prt_8260_clks (void);
493 #elif defined(CONFIG_MPC5xxx)
494 int prt_mpc5xxx_clks (void);
496 #if defined(CONFIG_MPC512X)
497 int prt_mpc512xxx_clks (void);
499 #if defined(CONFIG_MPC8220)
500 int prt_mpc8220_clks (void);
503 ulong get_OPB_freq (void);
504 ulong get_PCI_freq (void);
506 #if defined(CONFIG_S3C24X0) || \
507 defined(CONFIG_LH7A40X) || \
508 defined(CONFIG_S3C6400) || \
509 defined(CONFIG_EP93XX)
510 ulong get_FCLK (void);
511 ulong get_HCLK (void);
512 ulong get_PCLK (void);
513 ulong get_UCLK (void);
515 #if defined(CONFIG_LH7A40X)
516 ulong get_PLLCLK (void);
518 #if defined CONFIG_INCA_IP
519 uint incaip_get_cpuclk (void);
521 #if defined(CONFIG_IMX)
522 ulong get_systemPLLCLK(void);
523 ulong get_FCLK(void);
524 ulong get_HCLK(void);
525 ulong get_BCLK(void);
526 ulong get_PERCLK1(void);
527 ulong get_PERCLK2(void);
528 ulong get_PERCLK3(void);
530 ulong get_bus_freq (ulong);
531 int get_serial_clock(void);
533 #if defined(CONFIG_MPC85xx)
534 typedef MPC85xx_SYS_INFO sys_info_t;
535 void get_sys_info ( sys_info_t * );
536 ulong get_ddr_freq (ulong);
538 #if defined(CONFIG_MPC86xx)
539 typedef MPC86xx_SYS_INFO sys_info_t;
540 void get_sys_info ( sys_info_t * );
541 static inline ulong get_ddr_freq(ulong dummy)
543 return get_bus_freq(dummy);
547 #if defined(CONFIG_4xx) || defined(CONFIG_IOP480)
548 # if defined(CONFIG_440)
549 # if defined(CONFIG_440SPE)
550 unsigned long determine_sysper(void);
551 unsigned long determine_pci_clock_per(void);
554 typedef PPC4xx_SYS_INFO sys_info_t;
555 int ppc440spe_revB(void);
556 void get_sys_info ( sys_info_t * );
559 /* $(CPU)/cpu_init.c */
560 #if defined(CONFIG_8xx) || defined(CONFIG_8260)
561 void cpu_init_f (volatile immap_t *immr);
563 #if defined(CONFIG_4xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MCF52x2) ||defined(CONFIG_MPC86xx)
564 void cpu_init_f (void);
567 int cpu_init_r (void);
568 #if defined(CONFIG_8260)
569 int prt_8260_rsr (void);
570 #elif defined(CONFIG_MPC83xx)
571 int prt_83xx_rsr (void);
574 /* $(CPU)/interrupts.c */
575 int interrupt_init (void);
576 void timer_interrupt (struct pt_regs *);
577 void external_interrupt (struct pt_regs *);
578 void irq_install_handler(int, interrupt_handler_t *, void *);
579 void irq_free_handler (int);
580 void reset_timer (void);
581 ulong get_timer (ulong base);
582 void set_timer (ulong t);
583 void enable_interrupts (void);
584 int disable_interrupts (void);
586 /* $(CPU)/.../commproc.c */
587 int dpram_init (void);
588 uint dpram_base(void);
589 uint dpram_base_align(uint align);
590 uint dpram_alloc(uint size);
591 uint dpram_alloc_align(uint size,uint align);
592 void bootcount_store (ulong);
593 ulong bootcount_load (void);
594 #define BOOTCOUNT_MAGIC 0xB001C041
596 /* $(CPU)/.../<eth> */
597 void mii_init (void);
599 /* $(CPU)/.../lcd.c */
600 ulong lcd_setmem (ulong);
602 /* $(CPU)/.../vfd.c */
603 ulong vfd_setmem (ulong);
605 /* $(CPU)/.../video.c */
606 ulong video_setmem (ulong);
608 /* arch/$(ARCH)/lib/cache.c */
609 void flush_cache (unsigned long, unsigned long);
610 void flush_dcache_range(unsigned long start, unsigned long stop);
611 void invalidate_dcache_range(unsigned long start, unsigned long stop);
614 /* arch/$(ARCH)/lib/ticks.S */
615 unsigned long long get_ticks(void);
616 void wait_ticks (unsigned long);
618 /* arch/$(ARCH)/lib/time.c */
619 void __udelay (unsigned long);
620 ulong usec2ticks (unsigned long usec);
621 ulong ticks2usec (unsigned long ticks);
622 int init_timebase (void);
625 int gunzip(void *, int, unsigned char *, unsigned long *);
626 int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
627 int stoponerr, int offset);
629 /* lib/net_utils.c */
631 static inline IPaddr_t getenv_IPaddr (char *var)
633 return (string_to_ip(getenv(var)));
637 void qsort(void *base, size_t nmemb, size_t size,
638 int(*compar)(const void *, const void *));
639 int strcmp_compar(const void *, const void *);
642 void udelay (unsigned long);
645 ulong simple_strtoul(const char *cp,char **endp,unsigned int base);
646 unsigned long long simple_strtoull(const char *cp,char **endp,unsigned int base);
647 long simple_strtol(const char *cp,char **endp,unsigned int base);
648 void panic(const char *fmt, ...)
649 __attribute__ ((format (__printf__, 1, 2)));
650 int sprintf(char * buf, const char *fmt, ...)
651 __attribute__ ((format (__printf__, 2, 3)));
652 int vsprintf(char *buf, const char *fmt, va_list args);
655 char * strmhz(char *buf, unsigned long hz);
658 #include <u-boot/crc.h>
660 /* common/console.c */
661 int console_init_f(void); /* Before relocation; uses the serial stuff */
662 int console_init_r(void); /* After relocation; uses the console stuff */
663 int console_assign(int file, const char *devname); /* Assign the console */
665 int had_ctrlc (void); /* have we had a Control-C since last clear? */
666 void clear_ctrlc (void); /* clear the Control-C condition */
667 int disable_ctrlc (int); /* 1 to disable, 0 to enable Control-C detect */
670 * STDIO based functions (can always be used)
673 int serial_printf (const char *fmt, ...)
674 __attribute__ ((format (__printf__, 1, 2)));
680 void putc(const char c);
681 void puts(const char *s);
682 int printf(const char *fmt, ...)
683 __attribute__ ((format (__printf__, 1, 2)));
684 int vprintf(const char *fmt, va_list args);
687 #define eputc(c) fputc(stderr, c)
688 #define eputs(s) fputs(stderr, s)
689 #define eprintf(fmt,args...) fprintf(stderr,fmt ,##args)
692 * FILE based functions (can only be used AFTER relocation!)
699 int fprintf(int file, const char *fmt, ...)
700 __attribute__ ((format (__printf__, 2, 3)));
701 void fputs(int file, const char *s);
702 void fputc(int file, const char c);
707 * CONSOLE multiplexing.
709 #ifdef CONFIG_CONSOLE_MUX
713 int pcmcia_init (void);
715 #ifdef CONFIG_STATUS_LED
716 # include <status_led.h>
719 * Board-specific Platform code can reimplement show_boot_progress () if needed
721 void show_boot_progress(int val);
723 /* Multicore arch functions */
725 int cpu_status(int nr);
726 int cpu_reset(int nr);
727 int cpu_disable(int nr);
728 int cpu_release(int nr, int argc, char * const argv[]);
731 #endif /* __ASSEMBLY__ */
733 /* Put only stuff here that the assembler can digest */
736 #define CONFIG_HAS_POST
737 #ifndef CONFIG_POST_ALT_LIST
738 #define CONFIG_POST_STD_LIST
742 #ifdef CONFIG_INIT_CRITICAL
743 #error CONFIG_INIT_CRITICAL is deprecated!
744 #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
747 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
749 #define ROUND(a,b) (((a) + (b)) & ~((b) - 1))
750 #define DIV_ROUND(n,d) (((n) + ((d)/2)) / (d))
751 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
752 #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
754 #define ALIGN(x,a) __ALIGN_MASK((x),(typeof(x))(a)-1)
755 #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
757 #endif /* __COMMON_H_ */