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Commit | Line | Data |
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e2211743 | 1 | /* |
3b74e7ec | 2 | * (C) Copyright 2000-2009 |
e2211743 WD |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
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. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
180d3f74 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
e2211743 WD |
16 | * GNU General Public License for more details. |
17 | * | |
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, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #ifndef __COMMON_H_ | |
d0b8feef | 25 | #define __COMMON_H_ 1 |
e2211743 WD |
26 | |
27 | #undef _LINUX_CONFIG_H | |
d0b8feef | 28 | #define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ |
e2211743 | 29 | |
fcd3c87e WD |
30 | #ifndef __ASSEMBLY__ /* put C only stuff in this section */ |
31 | ||
e2211743 WD |
32 | typedef unsigned char uchar; |
33 | typedef volatile unsigned long vu_long; | |
180d3f74 | 34 | typedef volatile unsigned short vu_short; |
e2211743 WD |
35 | typedef volatile unsigned char vu_char; |
36 | ||
37 | #include <config.h> | |
25ddd1fb | 38 | #include <asm-offsets.h> |
e2211743 WD |
39 | #include <linux/bitops.h> |
40 | #include <linux/types.h> | |
41 | #include <linux/string.h> | |
9aed5080 | 42 | #include <linux/stringify.h> |
e2211743 WD |
43 | #include <asm/ptrace.h> |
44 | #include <stdarg.h> | |
a821d08d | 45 | #if defined(CONFIG_PCI) && defined(CONFIG_4xx) |
e2211743 WD |
46 | #include <pci.h> |
47 | #endif | |
180d3f74 | 48 | #if defined(CONFIG_8xx) |
e2211743 | 49 | #include <asm/8xx_immap.h> |
d4ca31c4 WD |
50 | #if defined(CONFIG_MPC852) || defined(CONFIG_MPC852T) || \ |
51 | defined(CONFIG_MPC859) || defined(CONFIG_MPC859T) || \ | |
52 | defined(CONFIG_MPC859DSL) || \ | |
53 | defined(CONFIG_MPC866) || defined(CONFIG_MPC866T) || \ | |
54 | defined(CONFIG_MPC866P) | |
d0b8feef | 55 | # define CONFIG_MPC866_FAMILY 1 |
180d3f74 WD |
56 | #elif defined(CONFIG_MPC870) \ |
57 | || defined(CONFIG_MPC875) \ | |
58 | || defined(CONFIG_MPC880) \ | |
59 | || defined(CONFIG_MPC885) | |
d0b8feef | 60 | # define CONFIG_MPC885_FAMILY 1 |
180d3f74 WD |
61 | #endif |
62 | #if defined(CONFIG_MPC860) \ | |
63 | || defined(CONFIG_MPC860T) \ | |
1114257c WD |
64 | || defined(CONFIG_MPC866_FAMILY) \ |
65 | || defined(CONFIG_MPC885_FAMILY) | |
d0b8feef | 66 | # define CONFIG_MPC86x 1 |
2535d602 | 67 | #endif |
0db5bca8 WD |
68 | #elif defined(CONFIG_5xx) |
69 | #include <asm/5xx_immap.h> | |
7e6bf358 WD |
70 | #elif defined(CONFIG_MPC5xxx) |
71 | #include <mpc5xxx.h> | |
8993e54b | 72 | #elif defined(CONFIG_MPC512X) |
8993e54b | 73 | #include <asm/immap_512x.h> |
983fda83 WD |
74 | #elif defined(CONFIG_MPC8220) |
75 | #include <asm/immap_8220.h> | |
e2211743 | 76 | #elif defined(CONFIG_8260) |
04a85b3b WD |
77 | #if defined(CONFIG_MPC8247) \ |
78 | || defined(CONFIG_MPC8248) \ | |
79 | || defined(CONFIG_MPC8271) \ | |
80 | || defined(CONFIG_MPC8272) | |
d0b8feef | 81 | #define CONFIG_MPC8272_FAMILY 1 |
04a85b3b WD |
82 | #endif |
83 | #if defined(CONFIG_MPC8272_FAMILY) | |
d0b8feef | 84 | #define CONFIG_MPC8260 1 |
04a85b3b | 85 | #endif |
e2211743 WD |
86 | #include <asm/immap_8260.h> |
87 | #endif | |
debb7354 JL |
88 | #ifdef CONFIG_MPC86xx |
89 | #include <mpc86xx.h> | |
90 | #include <asm/immap_86xx.h> | |
91 | #endif | |
42d1f039 WD |
92 | #ifdef CONFIG_MPC85xx |
93 | #include <mpc85xx.h> | |
94 | #include <asm/immap_85xx.h> | |
95 | #endif | |
0f898604 | 96 | #ifdef CONFIG_MPC83xx |
f046ccd1 EL |
97 | #include <mpc83xx.h> |
98 | #include <asm/immap_83xx.h> | |
99 | #endif | |
e2211743 | 100 | #ifdef CONFIG_4xx |
b36df561 | 101 | #include <asm/ppc4xx.h> |
e2211743 WD |
102 | #endif |
103 | #ifdef CONFIG_HYMOD | |
6dd652fa | 104 | #include <board/hymod/hymod.h> |
e2211743 WD |
105 | #endif |
106 | #ifdef CONFIG_ARM | |
107 | #define asmlinkage /* nothing */ | |
108 | #endif | |
6cfcce67 MF |
109 | #ifdef CONFIG_BLACKFIN |
110 | #include <asm/blackfin.h> | |
111 | #endif | |
2819e136 SN |
112 | #ifdef CONFIG_SOC_DA8XX |
113 | #include <asm/arch/hardware.h> | |
114 | #endif | |
e2211743 WD |
115 | |
116 | #include <part.h> | |
117 | #include <flash.h> | |
118 | #include <image.h> | |
119 | ||
21726a7a | 120 | #ifdef DEBUG |
88a85fb9 | 121 | #define _DEBUG 1 |
21726a7a | 122 | #else |
88a85fb9 | 123 | #define _DEBUG 0 |
21726a7a SG |
124 | #endif |
125 | ||
88a85fb9 MV |
126 | /* |
127 | * Output a debug text when condition "cond" is met. The "cond" should be | |
128 | * computed by a preprocessor in the best case, allowing for the best | |
129 | * optimization. | |
130 | */ | |
131 | #define debug_cond(cond, fmt, args...) \ | |
132 | do { \ | |
133 | if (cond) \ | |
134 | printf(fmt, ##args); \ | |
135 | } while (0) | |
136 | ||
137 | #define debug(fmt, args...) \ | |
138 | debug_cond(_DEBUG, fmt, ##args) | |
139 | ||
21726a7a SG |
140 | /* |
141 | * An assertion is run-time check done in debug mode only. If DEBUG is not | |
142 | * defined then it is skipped. If DEBUG is defined and the assertion fails, | |
143 | * then it calls panic*( which may or may not reset/halt U-Boot (see | |
144 | * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found | |
145 | * before release, and after release it is hoped that they don't matter. But | |
146 | * in any case these failing assertions cannot be fixed with a reset (which | |
147 | * may just do the same assertion again). | |
148 | */ | |
149 | void __assert_fail(const char *assertion, const char *file, unsigned line, | |
150 | const char *function); | |
151 | #define assert(x) \ | |
152 | ({ if (!(x) && _DEBUG) \ | |
153 | __assert_fail(#x, __FILE__, __LINE__, __func__); }) | |
154 | ||
594d57d0 MK |
155 | #define error(fmt, args...) do { \ |
156 | printf("ERROR: " fmt "\nat %s:%d/%s()\n", \ | |
157 | ##args, __FILE__, __LINE__, __func__); \ | |
158 | } while (0) | |
159 | ||
cfa460ad | 160 | #ifndef BUG |
43835aac | 161 | #define BUG() do { \ |
511d0c72 | 162 | printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ |
43835aac DZ |
163 | panic("BUG!"); \ |
164 | } while (0) | |
165 | #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0) | |
cfa460ad | 166 | #endif /* BUG */ |
43835aac | 167 | |
c00e17c7 HS |
168 | /* Force a compilation error if condition is true */ |
169 | #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) | |
170 | ||
c83bf6a2 | 171 | typedef void (interrupt_handler_t)(void *); |
e2211743 | 172 | |
c83bf6a2 | 173 | #include <asm/u-boot.h> /* boot information for Linux kernel */ |
e2211743 WD |
174 | #include <asm/global_data.h> /* global data used for startup functions */ |
175 | ||
71f95118 WD |
176 | /* |
177 | * enable common handling for all TQM8xxL/M boards: | |
11d9eec4 | 178 | * - CONFIG_TQM8xxM will be defined for all TQM8xxM boards |
71f95118 | 179 | * - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards |
11d9eec4 | 180 | * and for the TQM885D board |
71f95118 WD |
181 | */ |
182 | #if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \ | |
183 | defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \ | |
11d9eec4 | 184 | defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M) |
71f95118 WD |
185 | # ifndef CONFIG_TQM8xxM |
186 | # define CONFIG_TQM8xxM | |
187 | # endif | |
188 | #endif | |
e2211743 | 189 | #if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \ |
d126bfbd | 190 | defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \ |
11d9eec4 MK |
191 | defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM) || \ |
192 | defined(CONFIG_TQM885D) | |
e2211743 WD |
193 | # ifndef CONFIG_TQM8xxL |
194 | # define CONFIG_TQM8xxL | |
195 | # endif | |
196 | #endif | |
197 | ||
c7de829c WD |
198 | /* |
199 | * General Purpose Utilities | |
200 | */ | |
201 | #define min(X, Y) \ | |
1472af34 AW |
202 | ({ typeof (X) __x = (X); \ |
203 | typeof (Y) __y = (Y); \ | |
c7de829c WD |
204 | (__x < __y) ? __x : __y; }) |
205 | ||
206 | #define max(X, Y) \ | |
1472af34 AW |
207 | ({ typeof (X) __x = (X); \ |
208 | typeof (Y) __y = (Y); \ | |
c7de829c WD |
209 | (__x > __y) ? __x : __y; }) |
210 | ||
20d04774 AF |
211 | #define MIN(x, y) min(x, y) |
212 | #define MAX(x, y) max(x, y) | |
213 | ||
a35925b8 SG |
214 | /* |
215 | * Return the absolute value of a number. | |
216 | * | |
217 | * This handles unsigned and signed longs, ints, shorts and chars. For all | |
218 | * input types abs() returns a signed long. | |
219 | * | |
220 | * For 64-bit types, use abs64() | |
221 | */ | |
222 | #define abs(x) ({ \ | |
223 | long ret; \ | |
224 | if (sizeof(x) == sizeof(long)) { \ | |
225 | long __x = (x); \ | |
226 | ret = (__x < 0) ? -__x : __x; \ | |
227 | } else { \ | |
228 | int __x = (x); \ | |
229 | ret = (__x < 0) ? -__x : __x; \ | |
230 | } \ | |
231 | ret; \ | |
232 | }) | |
233 | ||
234 | #define abs64(x) ({ \ | |
235 | s64 __x = (x); \ | |
236 | (__x < 0) ? -__x : __x; \ | |
237 | }) | |
238 | ||
3fbeeea6 HS |
239 | #if defined(CONFIG_ENV_IS_EMBEDDED) |
240 | #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN | |
241 | #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \ | |
242 | (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \ | |
243 | defined(CONFIG_ENV_IS_IN_NVRAM) | |
244 | #define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE) | |
245 | #else | |
246 | #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN | |
247 | #endif | |
c7de829c | 248 | |
28901120 HS |
249 | /** |
250 | * container_of - cast a member of a structure out to the containing structure | |
251 | * @ptr: the pointer to the member. | |
252 | * @type: the type of the container struct this is embedded in. | |
253 | * @member: the name of the member within the struct. | |
254 | * | |
255 | */ | |
256 | #define container_of(ptr, type, member) ({ \ | |
257 | const typeof( ((type *)0)->member ) *__mptr = (ptr); \ | |
258 | (type *)( (char *)__mptr - offsetof(type,member) );}) | |
259 | ||
e2211743 WD |
260 | /* |
261 | * Function Prototypes | |
262 | */ | |
263 | ||
c83bf6a2 | 264 | void hang (void) __attribute__ ((noreturn)); |
e2211743 | 265 | |
f6c019c4 WD |
266 | int timer_init(void); |
267 | int cpu_init(void); | |
268 | ||
e2211743 | 269 | /* */ |
9973e3c6 | 270 | phys_size_t initdram (int); |
c83bf6a2 | 271 | int display_options (void); |
4b42c905 | 272 | void print_size(unsigned long long, const char *); |
bda32ffc SG |
273 | int print_buffer(ulong addr, const void *data, uint width, uint count, |
274 | uint linelen); | |
e2211743 WD |
275 | |
276 | /* common/main.c */ | |
277 | void main_loop (void); | |
009dde19 | 278 | int run_command(const char *cmd, int flag); |
d51004a8 SG |
279 | |
280 | /** | |
281 | * Run a list of commands separated by ; or even \0 | |
282 | * | |
283 | * Note that if 'len' is not -1, then the command does not need to be nul | |
284 | * terminated, Memory will be allocated for the command in that case. | |
285 | * | |
286 | * @param cmd List of commands to run, each separated bu semicolon | |
287 | * @param len Length of commands excluding terminator if known (-1 if not) | |
288 | * @param flag Execution flags (CMD_FLAG_...) | |
289 | * @return 0 on success, or != 0 on error. | |
290 | */ | |
291 | int run_command_list(const char *cmd, int len, int flag); | |
e2211743 | 292 | int readline (const char *const prompt); |
9c348311 HS |
293 | int readline_into_buffer(const char *const prompt, char *buffer, |
294 | int timeout); | |
6636b62a | 295 | int parse_line (char *, char *[]); |
6dd652fa | 296 | void init_cmd_timeout(void); |
e2211743 | 297 | void reset_cmd_timeout(void); |
b41bc5a8 JH |
298 | #ifdef CONFIG_MENU |
299 | int abortboot(int bootdelay); | |
300 | #endif | |
e3150460 | 301 | extern char console_buffer[]; |
e2211743 | 302 | |
ea0364f1 | 303 | /* arch/$(ARCH)/lib/board.c */ |
e05e5de7 | 304 | void board_init_f(ulong); |
6d1b6f9f | 305 | void board_init_r (gd_t *, ulong) __attribute__ ((noreturn)); |
e2211743 WD |
306 | int checkboard (void); |
307 | int checkflash (void); | |
308 | int checkdram (void); | |
e2211743 | 309 | int last_stage_init(void); |
3b57fe0a | 310 | extern ulong monitor_flash_len; |
bea3f28d | 311 | int mac_read_from_eeprom(void); |
bbb0b128 | 312 | extern u8 _binary_dt_dtb_start[]; /* embedded device tree blob */ |
8f5d4687 | 313 | int set_cpu_clk_info(void); |
1938f4a5 | 314 | int print_cpuinfo(void); |
c2240d4d | 315 | int update_flash_size(int flash_size); |
e2211743 | 316 | |
15a33e49 SG |
317 | /** |
318 | * Show the DRAM size in a board-specific way | |
319 | * | |
320 | * This is used by boards to display DRAM information in their own way. | |
321 | * | |
322 | * @param size Size of DRAM (which should be displayed along with other info) | |
323 | */ | |
324 | void board_show_dram(ulong size); | |
325 | ||
e2211743 WD |
326 | /* common/flash.c */ |
327 | void flash_perror (int); | |
328 | ||
74de7aef WD |
329 | /* common/cmd_source.c */ |
330 | int source (ulong addr, const char *fit_uname); | |
e2211743 | 331 | |
c83bf6a2 | 332 | extern ulong load_addr; /* Default Load Address */ |
1aec244a SG |
333 | extern ulong save_addr; /* Default Save Address */ |
334 | extern ulong save_size; /* Default Save Size */ | |
e2211743 | 335 | |
4394f9a8 WD |
336 | /* common/cmd_doc.c */ |
337 | void doc_probe(unsigned long physadr); | |
338 | ||
06283a64 JH |
339 | /* common/cmd_net.c */ |
340 | int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); | |
341 | ||
669df7e4 RH |
342 | /* common/cmd_fat.c */ |
343 | int do_fat_fsload(cmd_tbl_t *, int, int, char * const []); | |
344 | ||
345 | /* common/cmd_ext2.c */ | |
346 | int do_ext2load(cmd_tbl_t *, int, int, char * const []); | |
347 | ||
e2211743 WD |
348 | /* common/cmd_nvedit.c */ |
349 | int env_init (void); | |
350 | void env_relocate (void); | |
26a41790 | 351 | int envmatch (uchar *, int); |
84b5e802 WD |
352 | char *getenv (const char *); |
353 | int getenv_f (const char *name, char *buf, unsigned len); | |
4a9b4131 | 354 | ulong getenv_ulong(const char *name, int base, ulong default_val); |
ec8a252c JH |
355 | /* |
356 | * Read an environment variable as a boolean | |
357 | * Return -1 if variable does not exist (default to true) | |
358 | */ | |
359 | int getenv_yesno(const char *var); | |
c83bf6a2 | 360 | int saveenv (void); |
84b5e802 | 361 | int setenv (const char *, const char *); |
d67f10ce | 362 | int setenv_ulong(const char *varname, ulong value); |
bfc59966 SG |
363 | int setenv_hex(const char *varname, ulong value); |
364 | /** | |
365 | * setenv_addr - Set an environment variable to an address in hex | |
366 | * | |
367 | * @varname: Environmet variable to set | |
368 | * @addr: Value to set it to | |
369 | * @return 0 if ok, 1 on error | |
370 | */ | |
371 | static inline int setenv_addr(const char *varname, const void *addr) | |
372 | { | |
373 | return setenv_hex(varname, (ulong)addr); | |
374 | } | |
375 | ||
e2211743 | 376 | #ifdef CONFIG_ARM |
96085e34 | 377 | # include <asm/mach-types.h> |
b6e4c403 | 378 | # include <asm/setup.h> |
e2211743 WD |
379 | # include <asm/u-boot-arm.h> /* ARM version to be fixed! */ |
380 | #endif /* CONFIG_ARM */ | |
fea25720 GR |
381 | #ifdef CONFIG_X86 /* x86 version to be fixed! */ |
382 | # include <asm/u-boot-x86.h> | |
383 | #endif /* CONFIG_X86 */ | |
744d9859 SG |
384 | #ifdef CONFIG_SANDBOX |
385 | # include <asm/u-boot-sandbox.h> /* TODO(sjg) what needs to be fixed? */ | |
386 | #endif | |
e7083844 ML |
387 | #ifdef CONFIG_NDS32 |
388 | # include <asm/mach-types.h> | |
389 | # include <asm/u-boot-nds32.h> | |
390 | #endif /* CONFIG_NDS32 */ | |
e034ea3b DS |
391 | #ifdef CONFIG_MIPS |
392 | # include <asm/u-boot-mips.h> | |
393 | #endif /* CONFIG_MIPS */ | |
e2211743 | 394 | |
04a85b3b WD |
395 | #ifdef CONFIG_AUTO_COMPLETE |
396 | int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf); | |
397 | #endif | |
2f70c49e | 398 | int get_env_id (void); |
04a85b3b | 399 | |
c83bf6a2 WD |
400 | void pci_init (void); |
401 | void pci_init_board(void); | |
402 | void pciinfo (int, int); | |
e2211743 | 403 | |
a821d08d | 404 | #if defined(CONFIG_PCI) && defined(CONFIG_4xx) |
c71103f9 MF |
405 | int pci_pre_init (struct pci_controller *); |
406 | int is_pci_host (struct pci_controller *); | |
466fff1a SR |
407 | #endif |
408 | ||
dbbd1257 | 409 | #if defined(CONFIG_PCI) && (defined(CONFIG_440) || defined(CONFIG_405EX)) |
6d0f6bcf | 410 | # if defined(CONFIG_SYS_PCI_TARGET_INIT) |
c83bf6a2 | 411 | void pci_target_init (struct pci_controller *); |
e2211743 | 412 | # endif |
6d0f6bcf | 413 | # if defined(CONFIG_SYS_PCI_MASTER_INIT) |
c83bf6a2 | 414 | void pci_master_init (struct pci_controller *); |
e2211743 | 415 | # endif |
6f2eb3f3 SR |
416 | #if defined(CONFIG_440SPE) || \ |
417 | defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ | |
418 | defined(CONFIG_405EX) | |
7f191393 | 419 | void pcie_setup_hoses(int busno); |
692519b1 | 420 | #endif |
e2211743 WD |
421 | #endif |
422 | ||
423 | int misc_init_f (void); | |
424 | int misc_init_r (void); | |
425 | ||
27b207fd WD |
426 | /* common/exports.c */ |
427 | void jumptable_init(void); | |
428 | ||
ecb1dc89 MF |
429 | /* common/kallsysm.c */ |
430 | const char *symbol_lookup(unsigned long addr, unsigned long *caddr); | |
431 | ||
500856eb RJ |
432 | /* api/api.c */ |
433 | void api_init (void); | |
434 | ||
c83bf6a2 | 435 | /* common/memsize.c */ |
a55d23cc | 436 | long get_ram_size (long *, long); |
c83bf6a2 | 437 | |
e2211743 WD |
438 | /* $(BOARD)/$(BOARD).c */ |
439 | void reset_phy (void); | |
c83bf6a2 | 440 | void fdc_hw_init (void); |
e2211743 WD |
441 | |
442 | /* $(BOARD)/eeprom.c */ | |
443 | void eeprom_init (void); | |
6dd652fa WD |
444 | #ifndef CONFIG_SPI |
445 | int eeprom_probe (unsigned dev_addr, unsigned offset); | |
446 | #endif | |
e2211743 WD |
447 | int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); |
448 | int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); | |
449 | #ifdef CONFIG_LWMON | |
450 | extern uchar pic_read (uchar reg); | |
451 | extern void pic_write (uchar reg, uchar val); | |
452 | #endif | |
453 | ||
454 | /* | |
455 | * Set this up regardless of board | |
456 | * type, to prevent errors. | |
457 | */ | |
6d0f6bcf JCPV |
458 | #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) |
459 | # define CONFIG_SYS_DEF_EEPROM_ADDR 0 | |
e2211743 | 460 | #else |
548738b4 | 461 | #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) |
6d0f6bcf | 462 | # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR |
548738b4 | 463 | #endif |
6d0f6bcf | 464 | #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */ |
e2211743 | 465 | |
bdccc4fe | 466 | #if defined(CONFIG_SPI) |
e2211743 WD |
467 | extern void spi_init_f (void); |
468 | extern void spi_init_r (void); | |
c83bf6a2 | 469 | extern ssize_t spi_read (uchar *, int, uchar *, int); |
e2211743 WD |
470 | extern ssize_t spi_write (uchar *, int, uchar *, int); |
471 | #endif | |
472 | ||
473 | #ifdef CONFIG_RPXCLASSIC | |
474 | void rpxclassic_init (void); | |
475 | #endif | |
476 | ||
e63c8ee3 WD |
477 | void rpxlite_init (void); |
478 | ||
e2211743 WD |
479 | #ifdef CONFIG_MBX |
480 | /* $(BOARD)/mbx8xx.c */ | |
481 | void mbx_init (void); | |
482 | void board_serial_init (void); | |
483 | void board_ether_init (void); | |
484 | #endif | |
485 | ||
e2211743 WD |
486 | #ifdef CONFIG_HERMES |
487 | /* $(BOARD)/hermes.c */ | |
488 | void hermes_start_lxt980 (int speed); | |
489 | #endif | |
490 | ||
491 | #ifdef CONFIG_EVB64260 | |
492 | void evb64260_init(void); | |
493 | void debug_led(int, int); | |
494 | void display_mem_map(void); | |
495 | void perform_soft_reset(void); | |
496 | #endif | |
497 | ||
e2211743 | 498 | /* $(BOARD)/$(BOARD).c */ |
c837dcb1 WD |
499 | int board_early_init_f (void); |
500 | int board_late_init (void); | |
e2211743 | 501 | int board_postclk_init (void); /* after clocks/timebase, before env/serial */ |
c837dcb1 | 502 | int board_early_init_r (void); |
e2211743 WD |
503 | void board_poweroff (void); |
504 | ||
6d0f6bcf | 505 | #if defined(CONFIG_SYS_DRAM_TEST) |
e2211743 | 506 | int testdram(void); |
6d0f6bcf | 507 | #endif /* CONFIG_SYS_DRAM_TEST */ |
e2211743 WD |
508 | |
509 | /* $(CPU)/start.S */ | |
c83bf6a2 | 510 | #if defined(CONFIG_5xx) || \ |
0db5bca8 | 511 | defined(CONFIG_8xx) |
e2211743 WD |
512 | uint get_immr (uint); |
513 | #endif | |
c83bf6a2 | 514 | uint get_pir (void); |
36c72877 WD |
515 | #if defined(CONFIG_MPC5xxx) |
516 | uint get_svr (void); | |
517 | #endif | |
e2211743 | 518 | uint get_pvr (void); |
547b4cb2 | 519 | uint get_svr (void); |
e2211743 WD |
520 | uint rd_ic_cst (void); |
521 | void wr_ic_cst (uint); | |
522 | void wr_ic_adr (uint); | |
523 | uint rd_dc_cst (void); | |
524 | void wr_dc_cst (uint); | |
525 | void wr_dc_adr (uint); | |
526 | int icache_status (void); | |
527 | void icache_enable (void); | |
528 | void icache_disable(void); | |
529 | int dcache_status (void); | |
530 | void dcache_enable (void); | |
531 | void dcache_disable(void); | |
2c451f78 | 532 | void mmu_disable(void); |
5c6db120 BT |
533 | #if defined(CONFIG_ARM) |
534 | void relocate_code(ulong); | |
535 | #else | |
536 | void relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn)); | |
959eaa74 | 537 | #endif |
e2211743 WD |
538 | ulong get_endaddr (void); |
539 | void trap_init (ulong); | |
540 | #if defined (CONFIG_4xx) || \ | |
eeb1b77b | 541 | defined (CONFIG_MPC5xxx) || \ |
e2211743 WD |
542 | defined (CONFIG_74xx_7xx) || \ |
543 | defined (CONFIG_74x) || \ | |
544 | defined (CONFIG_75x) || \ | |
0ac6f8b7 | 545 | defined (CONFIG_74xx) || \ |
983fda83 | 546 | defined (CONFIG_MPC8220) || \ |
cd94ba39 | 547 | defined (CONFIG_MPC85xx) || \ |
debb7354 | 548 | defined (CONFIG_MPC86xx) || \ |
0f898604 | 549 | defined (CONFIG_MPC83xx) |
c83bf6a2 WD |
550 | unsigned char in8(unsigned int); |
551 | void out8(unsigned int, unsigned char); | |
552 | unsigned short in16(unsigned int); | |
553 | unsigned short in16r(unsigned int); | |
554 | void out16(unsigned int, unsigned short value); | |
555 | void out16r(unsigned int, unsigned short value); | |
556 | unsigned long in32(unsigned int); | |
557 | unsigned long in32r(unsigned int); | |
558 | void out32(unsigned int, unsigned long value); | |
559 | void out32r(unsigned int, unsigned long value); | |
560 | void ppcDcbf(unsigned long value); | |
561 | void ppcDcbi(unsigned long value); | |
562 | void ppcSync(void); | |
0ac6f8b7 | 563 | void ppcDcbz(unsigned long value); |
e2211743 | 564 | #endif |
0643631a MS |
565 | #if defined (CONFIG_MICROBLAZE) |
566 | unsigned short in16(unsigned int); | |
567 | void out16(unsigned int, unsigned short value); | |
568 | #endif | |
e2211743 | 569 | |
0f898604 | 570 | #if defined (CONFIG_MPC83xx) |
90f30a71 DL |
571 | void ppcDWload(unsigned int *addr, unsigned int *ret); |
572 | void ppcDWstore(unsigned int *addr, unsigned int *value); | |
7c6db910 HS |
573 | void disable_addr_trans(void); |
574 | void enable_addr_trans(void); | |
575 | #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) | |
576 | void ddr_enable_ecc(unsigned int dram_size); | |
577 | #endif | |
90f30a71 DL |
578 | #endif |
579 | ||
e2211743 | 580 | /* $(CPU)/cpu.c */ |
fbb9ecf7 TT |
581 | static inline int cpumask_next(int cpu, unsigned int mask) |
582 | { | |
583 | for (cpu++; !((1 << cpu) & mask); cpu++) | |
584 | ; | |
585 | ||
586 | return cpu; | |
587 | } | |
588 | ||
589 | #define for_each_cpu(iter, cpu, num_cpus, mask) \ | |
590 | for (iter = 0, cpu = cpumask_next(-1, mask); \ | |
591 | iter < num_cpus; \ | |
592 | iter++, cpu = cpumask_next(cpu, mask)) \ | |
593 | ||
0e870980 | 594 | int cpu_numcores (void); |
fbb9ecf7 TT |
595 | u32 cpu_mask (void); |
596 | int is_core_valid (unsigned int); | |
0e870980 | 597 | int probecpu (void); |
e2211743 WD |
598 | int checkcpu (void); |
599 | int checkicache (void); | |
600 | int checkdcache (void); | |
601 | void upmconfig (unsigned int, unsigned int *, unsigned int); | |
602 | ulong get_tbclk (void); | |
3ec924a3 | 603 | void reset_cpu (ulong addr); |
6a16e0df KP |
604 | #if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP) |
605 | void ft_cpu_setup(void *blob, bd_t *bd); | |
606 | #ifdef CONFIG_PCI | |
607 | void ft_pci_setup(void *blob, bd_t *bd); | |
608 | #endif | |
609 | #endif | |
610 | ||
e2211743 WD |
611 | |
612 | /* $(CPU)/serial.c */ | |
613 | int serial_init (void); | |
614 | void serial_setbrg (void); | |
615 | void serial_putc (const char); | |
756f586a | 616 | void serial_putc_raw(const char); |
e2211743 | 617 | void serial_puts (const char *); |
e2211743 WD |
618 | int serial_getc (void); |
619 | int serial_tstc (void); | |
620 | ||
756f586a WD |
621 | void _serial_setbrg (const int); |
622 | void _serial_putc (const char, const int); | |
623 | void _serial_putc_raw(const char, const int); | |
624 | void _serial_puts (const char *, const int); | |
625 | int _serial_getc (const int); | |
626 | int _serial_tstc (const int); | |
627 | ||
e2211743 WD |
628 | /* $(CPU)/speed.c */ |
629 | int get_clocks (void); | |
c178d3da WD |
630 | int get_clocks_866 (void); |
631 | int sdram_adjust_866 (void); | |
e9132ea9 | 632 | int adjust_sdram_tbs_8xx (void); |
e2211743 WD |
633 | #if defined(CONFIG_8260) |
634 | int prt_8260_clks (void); | |
f046ccd1 | 635 | #elif defined(CONFIG_MPC5xxx) |
945af8d7 WD |
636 | int prt_mpc5xxx_clks (void); |
637 | #endif | |
66a9455b | 638 | #if defined(CONFIG_MPC512X) |
8993e54b RJ |
639 | int prt_mpc512xxx_clks (void); |
640 | #endif | |
983fda83 WD |
641 | #if defined(CONFIG_MPC8220) |
642 | int prt_mpc8220_clks (void); | |
643 | #endif | |
e2211743 WD |
644 | #ifdef CONFIG_4xx |
645 | ulong get_OPB_freq (void); | |
646 | ulong get_PCI_freq (void); | |
647 | #endif | |
ac67804f | 648 | #if defined(CONFIG_S3C24X0) || \ |
649 | defined(CONFIG_LH7A40X) || \ | |
fcfb632b MK |
650 | defined(CONFIG_S3C6400) || \ |
651 | defined(CONFIG_EP93XX) | |
e2211743 WD |
652 | ulong get_FCLK (void); |
653 | ulong get_HCLK (void); | |
654 | ulong get_PCLK (void); | |
655 | ulong get_UCLK (void); | |
656 | #endif | |
f39748ae WD |
657 | #if defined(CONFIG_LH7A40X) |
658 | ulong get_PLLCLK (void); | |
659 | #endif | |
7cb22f97 | 660 | #if defined CONFIG_INCA_IP |
c83bf6a2 | 661 | uint incaip_get_cpuclk (void); |
7cb22f97 | 662 | #endif |
281e00a3 WD |
663 | #if defined(CONFIG_IMX) |
664 | ulong get_systemPLLCLK(void); | |
665 | ulong get_FCLK(void); | |
666 | ulong get_HCLK(void); | |
667 | ulong get_BCLK(void); | |
668 | ulong get_PERCLK1(void); | |
669 | ulong get_PERCLK2(void); | |
670 | ulong get_PERCLK3(void); | |
671 | #endif | |
e2211743 | 672 | ulong get_bus_freq (ulong); |
550650dd | 673 | int get_serial_clock(void); |
e2211743 | 674 | |
d29d17d7 YS |
675 | #if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) |
676 | ulong get_ddr_freq(ulong); | |
677 | #endif | |
42d1f039 WD |
678 | #if defined(CONFIG_MPC85xx) |
679 | typedef MPC85xx_SYS_INFO sys_info_t; | |
c83bf6a2 | 680 | void get_sys_info ( sys_info_t * ); |
42d1f039 | 681 | #endif |
debb7354 JL |
682 | #if defined(CONFIG_MPC86xx) |
683 | typedef MPC86xx_SYS_INFO sys_info_t; | |
684 | void get_sys_info ( sys_info_t * ); | |
5df4b0ad KG |
685 | static inline ulong get_ddr_freq(ulong dummy) |
686 | { | |
687 | return get_bus_freq(dummy); | |
688 | } | |
debb7354 | 689 | #endif |
42d1f039 | 690 | |
99bcad18 | 691 | #if defined(CONFIG_4xx) |
e2211743 | 692 | # if defined(CONFIG_440) |
6c5879f3 MB |
693 | # if defined(CONFIG_440SPE) |
694 | unsigned long determine_sysper(void); | |
695 | unsigned long determine_pci_clock_per(void); | |
696 | # endif | |
e2211743 | 697 | # endif |
087dfdb7 | 698 | typedef PPC4xx_SYS_INFO sys_info_t; |
f31d38b9 | 699 | int ppc440spe_revB(void); |
c83bf6a2 | 700 | void get_sys_info ( sys_info_t * ); |
e2211743 WD |
701 | #endif |
702 | ||
703 | /* $(CPU)/cpu_init.c */ | |
704 | #if defined(CONFIG_8xx) || defined(CONFIG_8260) | |
705 | void cpu_init_f (volatile immap_t *immr); | |
706 | #endif | |
debb7354 | 707 | #if defined(CONFIG_4xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MCF52x2) ||defined(CONFIG_MPC86xx) |
e2211743 WD |
708 | void cpu_init_f (void); |
709 | #endif | |
bf9e3b38 | 710 | |
e2211743 WD |
711 | int cpu_init_r (void); |
712 | #if defined(CONFIG_8260) | |
713 | int prt_8260_rsr (void); | |
0f898604 | 714 | #elif defined(CONFIG_MPC83xx) |
9be39a67 | 715 | int prt_83xx_rsr (void); |
e2211743 WD |
716 | #endif |
717 | ||
718 | /* $(CPU)/interrupts.c */ | |
c83bf6a2 WD |
719 | int interrupt_init (void); |
720 | void timer_interrupt (struct pt_regs *); | |
e2211743 WD |
721 | void external_interrupt (struct pt_regs *); |
722 | void irq_install_handler(int, interrupt_handler_t *, void *); | |
723 | void irq_free_handler (int); | |
724 | void reset_timer (void); | |
725 | ulong get_timer (ulong base); | |
e2211743 WD |
726 | void enable_interrupts (void); |
727 | int disable_interrupts (void); | |
728 | ||
729 | /* $(CPU)/.../commproc.c */ | |
730 | int dpram_init (void); | |
731 | uint dpram_base(void); | |
732 | uint dpram_base_align(uint align); | |
733 | uint dpram_alloc(uint size); | |
734 | uint dpram_alloc_align(uint size,uint align); | |
bdccc4fe WD |
735 | void bootcount_store (ulong); |
736 | ulong bootcount_load (void); | |
737 | #define BOOTCOUNT_MAGIC 0xB001C041 | |
e2211743 WD |
738 | |
739 | /* $(CPU)/.../<eth> */ | |
c5bded3c | 740 | void mii_init (void); |
e2211743 WD |
741 | |
742 | /* $(CPU)/.../lcd.c */ | |
743 | ulong lcd_setmem (ulong); | |
744 | ||
e2211743 WD |
745 | /* $(CPU)/.../video.c */ |
746 | ulong video_setmem (ulong); | |
747 | ||
ea0364f1 | 748 | /* arch/$(ARCH)/lib/cache.c */ |
cba4b180 | 749 | void enable_caches(void); |
e2211743 | 750 | void flush_cache (unsigned long, unsigned long); |
2c451f78 | 751 | void flush_dcache_all(void); |
03d3bfb0 SR |
752 | void flush_dcache_range(unsigned long start, unsigned long stop); |
753 | void invalidate_dcache_range(unsigned long start, unsigned long stop); | |
2c451f78 A |
754 | void invalidate_dcache_all(void); |
755 | void invalidate_icache_all(void); | |
0db5bca8 | 756 | |
ea0364f1 | 757 | /* arch/$(ARCH)/lib/ticks.S */ |
e2211743 WD |
758 | unsigned long long get_ticks(void); |
759 | void wait_ticks (unsigned long); | |
760 | ||
ea0364f1 | 761 | /* arch/$(ARCH)/lib/time.c */ |
3eb90bad | 762 | void __udelay (unsigned long); |
e2211743 WD |
763 | ulong usec2ticks (unsigned long usec); |
764 | ulong ticks2usec (unsigned long ticks); | |
765 | int init_timebase (void); | |
766 | ||
78acc472 | 767 | /* lib/gunzip.c */ |
87d93a1b WW |
768 | int gunzip(void *, int, unsigned char *, unsigned long *); |
769 | int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp, | |
770 | int stoponerr, int offset); | |
771 | ||
54c6977e WD |
772 | /* lib/qsort.c */ |
773 | void qsort(void *base, size_t nmemb, size_t size, | |
774 | int(*compar)(const void *, const void *)); | |
560d424b | 775 | int strcmp_compar(const void *, const void *); |
54c6977e | 776 | |
78acc472 | 777 | /* lib/time.c */ |
3eb90bad | 778 | void udelay (unsigned long); |
c4c9fbeb | 779 | void mdelay(unsigned long); |
3eb90bad | 780 | |
e11938ea JH |
781 | /* lib/uuid.c */ |
782 | void uuid_str_to_bin(const char *uuid, unsigned char *out); | |
783 | int uuid_str_valid(const char *uuid); | |
784 | ||
78acc472 | 785 | /* lib/vsprintf.c */ |
9785c905 | 786 | #include <vsprintf.h> |
e2211743 | 787 | |
78acc472 | 788 | /* lib/strmhz.c */ |
55f7934d | 789 | char * strmhz(char *buf, unsigned long hz); |
0768b7a8 | 790 | |
78acc472 | 791 | /* lib/crc32.c */ |
449609f5 | 792 | #include <u-boot/crc.h> |
e2211743 | 793 | |
9acf1ca5 | 794 | /* lib/rand.c */ |
99e139d5 MW |
795 | #if defined(CONFIG_RANDOM_MACADDR) || \ |
796 | defined(CONFIG_BOOTP_RANDOM_DELAY) || \ | |
797 | defined(CONFIG_CMD_LINK_LOCAL) | |
9acf1ca5 MW |
798 | #define RAND_MAX -1U |
799 | void srand(unsigned int seed); | |
800 | unsigned int rand(void); | |
801 | unsigned int rand_r(unsigned int *seedp); | |
802 | #endif | |
803 | ||
e2211743 | 804 | /* common/console.c */ |
e2211743 WD |
805 | int console_init_f(void); /* Before relocation; uses the serial stuff */ |
806 | int console_init_r(void); /* After relocation; uses the console stuff */ | |
d7be3056 | 807 | int console_assign(int file, const char *devname); /* Assign the console */ |
e2211743 WD |
808 | int ctrlc (void); |
809 | int had_ctrlc (void); /* have we had a Control-C since last clear? */ | |
810 | void clear_ctrlc (void); /* clear the Control-C condition */ | |
811 | int disable_ctrlc (int); /* 1 to disable, 0 to enable Control-C detect */ | |
812 | ||
813 | /* | |
814 | * STDIO based functions (can always be used) | |
815 | */ | |
e2211743 | 816 | /* serial stuff */ |
d9c27253 | 817 | int serial_printf (const char *fmt, ...) |
dc4b0b38 | 818 | __attribute__ ((format (__printf__, 1, 2))); |
e2211743 WD |
819 | /* stdin */ |
820 | int getc(void); | |
821 | int tstc(void); | |
822 | ||
823 | /* stdout */ | |
824 | void putc(const char c); | |
825 | void puts(const char *s); | |
d9c27253 | 826 | int printf(const char *fmt, ...) |
dc4b0b38 | 827 | __attribute__ ((format (__printf__, 1, 2))); |
d9c27253 | 828 | int vprintf(const char *fmt, va_list args); |
e2211743 WD |
829 | |
830 | /* stderr */ | |
831 | #define eputc(c) fputc(stderr, c) | |
832 | #define eputs(s) fputs(stderr, s) | |
833 | #define eprintf(fmt,args...) fprintf(stderr,fmt ,##args) | |
834 | ||
835 | /* | |
836 | * FILE based functions (can only be used AFTER relocation!) | |
837 | */ | |
e2211743 WD |
838 | #define stdin 0 |
839 | #define stdout 1 | |
840 | #define stderr 2 | |
841 | #define MAX_FILES 3 | |
842 | ||
d9c27253 | 843 | int fprintf(int file, const char *fmt, ...) |
dc4b0b38 | 844 | __attribute__ ((format (__printf__, 2, 3))); |
e2211743 WD |
845 | void fputs(int file, const char *s); |
846 | void fputc(int file, const char c); | |
847 | int ftstc(int file); | |
848 | int fgetc(int file); | |
849 | ||
88d52c6a LW |
850 | /* lib/gzip.c */ |
851 | int gzip(void *dst, unsigned long *lenp, | |
852 | unsigned char *src, unsigned long srclen); | |
853 | int zzip(void *dst, unsigned long *lenp, unsigned char *src, | |
854 | unsigned long srclen, int stoponerr, | |
855 | int (*func)(unsigned long, unsigned long)); | |
856 | ||
4ef8d53c JH |
857 | /* lib/net_utils.c */ |
858 | #include <net.h> | |
859 | static inline IPaddr_t getenv_IPaddr(char *var) | |
860 | { | |
861 | return string_to_ip(getenv(var)); | |
862 | } | |
863 | ||
16a28ef2 GJ |
864 | /* |
865 | * CONSOLE multiplexing. | |
866 | */ | |
867 | #ifdef CONFIG_CONSOLE_MUX | |
868 | #include <iomux.h> | |
869 | #endif | |
870 | ||
e2211743 WD |
871 | int pcmcia_init (void); |
872 | ||
fb364bec WD |
873 | #ifdef CONFIG_STATUS_LED |
874 | # include <status_led.h> | |
875 | #endif | |
097e1783 SG |
876 | |
877 | #include <bootstage.h> | |
e2211743 | 878 | |
48522bb5 JH |
879 | #ifdef CONFIG_SHOW_ACTIVITY |
880 | void show_activity(int arg); | |
881 | #endif | |
882 | ||
fcd3c87e WD |
883 | /* Multicore arch functions */ |
884 | #ifdef CONFIG_MP | |
885 | int cpu_status(int nr); | |
886 | int cpu_reset(int nr); | |
4194b366 | 887 | int cpu_disable(int nr); |
54841ab5 | 888 | int cpu_release(int nr, int argc, char * const argv[]); |
fcd3c87e WD |
889 | #endif |
890 | ||
4213fc29 SG |
891 | /* Define a null map_sysmem() if the architecture doesn't use it */ |
892 | # ifndef CONFIG_ARCH_MAP_SYSMEM | |
893 | static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) | |
894 | { | |
895 | return (void *)(uintptr_t)paddr; | |
896 | } | |
897 | ||
898 | static inline void unmap_sysmem(const void *vaddr) | |
899 | { | |
900 | } | |
901 | # endif | |
902 | ||
fcd3c87e WD |
903 | #endif /* __ASSEMBLY__ */ |
904 | ||
13e95e42 SR |
905 | #ifdef CONFIG_PPC |
906 | /* | |
907 | * Has to be included outside of the #ifndef __ASSEMBLY__ section. | |
908 | * Otherwise might lead to compilation errors in assembler files. | |
909 | */ | |
910 | #include <asm/cache.h> | |
911 | #endif | |
912 | ||
fcd3c87e WD |
913 | /* Put only stuff here that the assembler can digest */ |
914 | ||
915 | #ifdef CONFIG_POST | |
916 | #define CONFIG_HAS_POST | |
800eb096 MZ |
917 | #ifndef CONFIG_POST_ALT_LIST |
918 | #define CONFIG_POST_STD_LIST | |
919 | #endif | |
fcd3c87e WD |
920 | #endif |
921 | ||
8aa1a2d1 | 922 | #ifdef CONFIG_INIT_CRITICAL |
2f6fa46d | 923 | #error CONFIG_INIT_CRITICAL is deprecated! |
8aa1a2d1 WD |
924 | #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README. |
925 | #endif | |
926 | ||
3cfb0c51 KG |
927 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
928 | ||
155cfb5e | 929 | #define ROUND(a,b) (((a) + (b) - 1) & ~((b) - 1)) |
d50c7d4b WD |
930 | #define DIV_ROUND(n,d) (((n) + ((d)/2)) / (d)) |
931 | #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) | |
932 | #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) | |
022f1216 | 933 | |
4b03ac8b AF |
934 | #define ALIGN(x,a) __ALIGN_MASK((x),(typeof(x))(a)-1) |
935 | #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) | |
936 | ||
1e41f5ad AS |
937 | /* |
938 | * ARCH_DMA_MINALIGN is defined in asm/cache.h for each architecture. It | |
939 | * is used to align DMA buffers. | |
940 | */ | |
941 | #ifndef __ASSEMBLY__ | |
942 | #include <asm/cache.h> | |
943 | #endif | |
944 | ||
46a6d51c A |
945 | /* |
946 | * The ALLOC_CACHE_ALIGN_BUFFER macro is used to allocate a buffer on the | |
947 | * stack that meets the minimum architecture alignment requirements for DMA. | |
948 | * Such a buffer is useful for DMA operations where flushing and invalidating | |
949 | * the cache before and after a read and/or write operation is required for | |
950 | * correct operations. | |
951 | * | |
952 | * When called the macro creates an array on the stack that is sized such | |
953 | * that: | |
954 | * | |
955 | * 1) The beginning of the array can be advanced enough to be aligned. | |
956 | * | |
957 | * 2) The size of the aligned portion of the array is a multiple of the minimum | |
958 | * architecture alignment required for DMA. | |
959 | * | |
960 | * 3) The aligned portion contains enough space for the original number of | |
961 | * elements requested. | |
962 | * | |
963 | * The macro then creates a pointer to the aligned portion of this array and | |
964 | * assigns to the pointer the address of the first element in the aligned | |
965 | * portion of the array. | |
966 | * | |
967 | * Calling the macro as: | |
968 | * | |
969 | * ALLOC_CACHE_ALIGN_BUFFER(uint32_t, buffer, 1024); | |
970 | * | |
971 | * Will result in something similar to saying: | |
972 | * | |
973 | * uint32_t buffer[1024]; | |
974 | * | |
975 | * The following differences exist: | |
976 | * | |
977 | * 1) The resulting buffer is guaranteed to be aligned to the value of | |
978 | * ARCH_DMA_MINALIGN. | |
979 | * | |
980 | * 2) The buffer variable created by the macro is a pointer to the specified | |
981 | * type, and NOT an array of the specified type. This can be very important | |
982 | * if you want the address of the buffer, which you probably do, to pass it | |
983 | * to the DMA hardware. The value of &buffer is different in the two cases. | |
984 | * In the macro case it will be the address of the pointer, not the address | |
985 | * of the space reserved for the buffer. However, in the second case it | |
986 | * would be the address of the buffer. So if you are replacing hard coded | |
987 | * stack buffers with this macro you need to make sure you remove the & from | |
988 | * the locations where you are taking the address of the buffer. | |
989 | * | |
990 | * Note that the size parameter is the number of array elements to allocate, | |
991 | * not the number of bytes. | |
992 | * | |
993 | * This macro can not be used outside of function scope, or for the creation | |
994 | * of a function scoped static buffer. It can not be used to create a cache | |
995 | * line aligned global buffer. | |
996 | */ | |
de4d1135 MV |
997 | #define ALLOC_ALIGN_BUFFER(type, name, size, align) \ |
998 | char __##name[ROUND(size * sizeof(type), align) + (align - 1)]; \ | |
999 | \ | |
1000 | type *name = (type *) ALIGN((uintptr_t)__##name, align) | |
46a6d51c | 1001 | #define ALLOC_CACHE_ALIGN_BUFFER(type, name, size) \ |
de4d1135 MV |
1002 | ALLOC_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN) |
1003 | ||
1004 | /* | |
1005 | * DEFINE_CACHE_ALIGN_BUFFER() is similar to ALLOC_CACHE_ALIGN_BUFFER, but it's | |
1006 | * purpose is to allow allocating aligned buffers outside of function scope. | |
1007 | * Usage of this macro shall be avoided or used with extreme care! | |
1008 | */ | |
1009 | #define DEFINE_ALIGN_BUFFER(type, name, size, align) \ | |
1010 | static char __##name[roundup(size * sizeof(type), align)] \ | |
546910f8 | 1011 | __attribute__((aligned(align))); \ |
46a6d51c | 1012 | \ |
de4d1135 MV |
1013 | static type *name = (type *)__##name |
1014 | #define DEFINE_CACHE_ALIGN_BUFFER(type, name, size) \ | |
1015 | DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN) | |
46a6d51c | 1016 | |
c3eb3fe4 MF |
1017 | /* Pull in stuff for the build system */ |
1018 | #ifdef DO_DEPS_ONLY | |
1019 | # include <environment.h> | |
1020 | #endif | |
1021 | ||
e2211743 | 1022 | #endif /* __COMMON_H_ */ |