1 /* 2 * (C) Copyright 2002 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 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 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 #include <common.h> 25 #include <stdio_dev.h> 26 #include <watchdog.h> 27 #include <post.h> 28 29 #ifdef CONFIG_SYS_POST_HOTKEYS_GPIO 30 #include <asm/gpio.h> 31 #endif 32 33 #ifdef CONFIG_LOGBUFFER 34 #include <logbuff.h> 35 #endif 36 37 DECLARE_GLOBAL_DATA_PTR; 38 39 #define POST_MAX_NUMBER 32 40 41 #define BOOTMODE_MAGIC 0xDEAD0000 42 43 int post_init_f(void) 44 { 45 int res = 0; 46 unsigned int i; 47 48 for (i = 0; i < post_list_size; i++) { 49 struct post_test *test = post_list + i; 50 51 if (test->init_f && test->init_f()) { 52 res = -1; 53 } 54 } 55 56 gd->post_init_f_time = post_time_ms(0); 57 if (!gd->post_init_f_time) 58 printf("%s: post_time_ms not implemented\n", __FILE__); 59 60 return res; 61 } 62 63 /* 64 * Supply a default implementation for post_hotkeys_pressed() for boards 65 * without hotkey support. We always return 0 here, so that the 66 * long-running tests won't be started. 67 * 68 * Boards with hotkey support can override this weak default function 69 * by defining one in their board specific code. 70 */ 71 int __post_hotkeys_pressed(void) 72 { 73 #ifdef CONFIG_SYS_POST_HOTKEYS_GPIO 74 int ret; 75 unsigned gpio = CONFIG_SYS_POST_HOTKEYS_GPIO; 76 77 ret = gpio_request(gpio, "hotkeys"); 78 if (ret) { 79 printf("POST: gpio hotkey request failed\n"); 80 return 0; 81 } 82 83 gpio_direction_input(gpio); 84 ret = gpio_get_value(gpio); 85 gpio_free(gpio); 86 87 return ret; 88 #endif 89 90 return 0; /* No hotkeys supported */ 91 } 92 int post_hotkeys_pressed(void) 93 __attribute__((weak, alias("__post_hotkeys_pressed"))); 94 95 96 void post_bootmode_init(void) 97 { 98 int bootmode = post_bootmode_get(0); 99 int newword; 100 101 if (post_hotkeys_pressed() && !(bootmode & POST_POWERTEST)) 102 newword = BOOTMODE_MAGIC | POST_SLOWTEST; 103 else if (bootmode == 0) 104 newword = BOOTMODE_MAGIC | POST_POWERON; 105 else if (bootmode == POST_POWERON || bootmode == POST_SLOWTEST) 106 newword = BOOTMODE_MAGIC | POST_NORMAL; 107 else 108 /* Use old value */ 109 newword = post_word_load () & ~POST_COLDBOOT; 110 111 if (bootmode == 0) 112 /* We are booting after power-on */ 113 newword |= POST_COLDBOOT; 114 115 post_word_store(newword); 116 117 /* Reset activity record */ 118 gd->post_log_word = 0; 119 gd->post_log_res = 0; 120 } 121 122 int post_bootmode_get(unsigned int *last_test) 123 { 124 unsigned long word = post_word_load(); 125 int bootmode; 126 127 if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) 128 return 0; 129 130 bootmode = word & 0x7F; 131 132 if (last_test && (bootmode & POST_POWERTEST)) 133 *last_test = (word >> 8) & 0xFF; 134 135 return bootmode; 136 } 137 138 /* POST tests run before relocation only mark status bits .... */ 139 static void post_log_mark_start(unsigned long testid) 140 { 141 gd->post_log_word |= testid; 142 } 143 144 static void post_log_mark_succ(unsigned long testid) 145 { 146 gd->post_log_res |= testid; 147 } 148 149 /* ... and the messages are output once we are relocated */ 150 void post_output_backlog(void) 151 { 152 int j; 153 154 for (j = 0; j < post_list_size; j++) { 155 if (gd->post_log_word & (post_list[j].testid)) { 156 post_log ("POST %s ", post_list[j].cmd); 157 if (gd->post_log_res & post_list[j].testid) 158 post_log ("PASSED\n"); 159 else { 160 post_log("FAILED\n"); 161 show_boot_progress(-31); 162 } 163 } 164 } 165 } 166 167 static void post_bootmode_test_on(unsigned int last_test) 168 { 169 unsigned long word = post_word_load(); 170 171 word |= POST_POWERTEST; 172 173 word |= (last_test & 0xFF) << 8; 174 175 post_word_store(word); 176 } 177 178 static void post_bootmode_test_off(void) 179 { 180 unsigned long word = post_word_load(); 181 182 word &= ~POST_POWERTEST; 183 184 post_word_store(word); 185 } 186 187 #ifndef CONFIG_POST_SKIP_ENV_FLAGS 188 static void post_get_env_flags(int *test_flags) 189 { 190 int flag[] = { POST_POWERON, POST_NORMAL, POST_SLOWTEST, 191 POST_CRITICAL }; 192 char *var[] = { "post_poweron", "post_normal", "post_slowtest", 193 "post_critical" }; 194 int varnum = ARRAY_SIZE(var); 195 char list[128]; /* long enough for POST list */ 196 char *name; 197 char *s; 198 int last; 199 int i, j; 200 201 for (i = 0; i < varnum; i++) { 202 if (getenv_f(var[i], list, sizeof (list)) <= 0) 203 continue; 204 205 for (j = 0; j < post_list_size; j++) { 206 test_flags[j] &= ~flag[i]; 207 } 208 209 last = 0; 210 name = list; 211 while (!last) { 212 while (*name && *name == ' ') 213 name++; 214 if (*name == 0) 215 break; 216 s = name + 1; 217 while (*s && *s != ' ') 218 s++; 219 if (*s == 0) 220 last = 1; 221 else 222 *s = 0; 223 224 for (j = 0; j < post_list_size; j++) { 225 if (strcmp (post_list[j].cmd, name) == 0) { 226 test_flags[j] |= flag[i]; 227 break; 228 } 229 } 230 231 if (j == post_list_size) 232 printf ("No such test: %s\n", name); 233 234 name = s + 1; 235 } 236 } 237 } 238 #endif 239 240 static void post_get_flags(int *test_flags) 241 { 242 int j; 243 244 for (j = 0; j < post_list_size; j++) 245 test_flags[j] = post_list[j].flags; 246 247 #ifndef CONFIG_POST_SKIP_ENV_FLAGS 248 post_get_env_flags(test_flags); 249 #endif 250 251 for (j = 0; j < post_list_size; j++) 252 if (test_flags[j] & POST_POWERON) 253 test_flags[j] |= POST_SLOWTEST; 254 } 255 256 void __show_post_progress(unsigned int test_num, int before, int result) 257 { 258 } 259 void show_post_progress(unsigned int, int, int) 260 __attribute__((weak, alias("__show_post_progress"))); 261 262 static int post_run_single(struct post_test *test, 263 int test_flags, int flags, unsigned int i) 264 { 265 if ((flags & test_flags & POST_ALWAYS) && 266 (flags & test_flags & POST_MEM)) { 267 WATCHDOG_RESET (); 268 269 if (!(flags & POST_REBOOT)) { 270 if ((test_flags & POST_REBOOT) && 271 !(flags & POST_MANUAL)) { 272 post_bootmode_test_on( 273 (gd->flags & GD_FLG_POSTFAIL) ? 274 POST_FAIL_SAVE | i : i); 275 } 276 277 if (test_flags & POST_PREREL) 278 post_log_mark_start(test->testid); 279 else 280 post_log("POST %s ", test->cmd); 281 } 282 283 show_post_progress(i, POST_BEFORE, POST_FAILED); 284 285 if (test_flags & POST_PREREL) { 286 if ((*test->test) (flags) == 0) { 287 post_log_mark_succ(test->testid); 288 show_post_progress(i, POST_AFTER, POST_PASSED); 289 } 290 else { 291 show_post_progress(i, POST_AFTER, POST_FAILED); 292 if (test_flags & POST_CRITICAL) 293 gd->flags |= GD_FLG_POSTFAIL; 294 if (test_flags & POST_STOP) 295 gd->flags |= GD_FLG_POSTSTOP; 296 } 297 } else { 298 if ((*test->test)(flags) != 0) { 299 post_log("FAILED\n"); 300 show_boot_progress(-32); 301 show_post_progress(i, POST_AFTER, POST_FAILED); 302 if (test_flags & POST_CRITICAL) 303 gd->flags |= GD_FLG_POSTFAIL; 304 if (test_flags & POST_STOP) 305 gd->flags |= GD_FLG_POSTSTOP; 306 } else { 307 post_log("PASSED\n"); 308 show_post_progress(i, POST_AFTER, POST_PASSED); 309 } 310 } 311 312 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) { 313 post_bootmode_test_off(); 314 } 315 316 return 0; 317 } else { 318 return -1; 319 } 320 } 321 322 int post_run (char *name, int flags) 323 { 324 unsigned int i; 325 int test_flags[POST_MAX_NUMBER]; 326 327 post_get_flags(test_flags); 328 329 if (name == NULL) { 330 unsigned int last; 331 332 if (gd->flags & GD_FLG_POSTSTOP) 333 return 0; 334 335 if (post_bootmode_get(&last) & POST_POWERTEST) { 336 if (last & POST_FAIL_SAVE) { 337 last &= ~POST_FAIL_SAVE; 338 gd->flags |= GD_FLG_POSTFAIL; 339 } 340 if (last < post_list_size && 341 (flags & test_flags[last] & POST_ALWAYS) && 342 (flags & test_flags[last] & POST_MEM)) { 343 344 post_run_single(post_list + last, 345 test_flags[last], 346 flags | POST_REBOOT, last); 347 348 for (i = last + 1; i < post_list_size; i++) { 349 if (gd->flags & GD_FLG_POSTSTOP) 350 break; 351 post_run_single(post_list + i, 352 test_flags[i], 353 flags, i); 354 } 355 } 356 } else { 357 for (i = 0; i < post_list_size; i++) { 358 if (gd->flags & GD_FLG_POSTSTOP) 359 break; 360 post_run_single(post_list + i, 361 test_flags[i], 362 flags, i); 363 } 364 } 365 366 return 0; 367 } else { 368 for (i = 0; i < post_list_size; i++) { 369 if (strcmp (post_list[i].cmd, name) == 0) 370 break; 371 } 372 373 if (i < post_list_size) { 374 WATCHDOG_RESET(); 375 return post_run_single(post_list + i, 376 test_flags[i], 377 flags, i); 378 } else { 379 return -1; 380 } 381 } 382 } 383 384 static int post_info_single(struct post_test *test, int full) 385 { 386 if (test->flags & POST_MANUAL) { 387 if (full) 388 printf("%s - %s\n" 389 " %s\n", test->cmd, test->name, test->desc); 390 else 391 printf(" %-15s - %s\n", test->cmd, test->name); 392 393 return 0; 394 } else { 395 return -1; 396 } 397 } 398 399 int post_info (char *name) 400 { 401 unsigned int i; 402 403 if (name == NULL) { 404 for (i = 0; i < post_list_size; i++) 405 post_info_single(post_list + i, 0); 406 407 return 0; 408 } else { 409 for (i = 0; i < post_list_size; i++) { 410 if (strcmp (post_list[i].cmd, name) == 0) 411 break; 412 } 413 414 if (i < post_list_size) { 415 return post_info_single(post_list + i, 1); 416 } else { 417 return -1; 418 } 419 } 420 } 421 422 int post_log(char *format, ...) 423 { 424 va_list args; 425 uint i; 426 char printbuffer[CONFIG_SYS_PBSIZE]; 427 428 va_start (args, format); 429 430 /* For this to work, printbuffer must be larger than 431 * anything we ever want to print. 432 */ 433 i = vsprintf (printbuffer, format, args); 434 va_end (args); 435 436 #ifdef CONFIG_LOGBUFFER 437 /* Send to the logbuffer */ 438 logbuff_log(printbuffer); 439 #else 440 /* Send to the stdout file */ 441 puts(printbuffer); 442 #endif 443 444 return 0; 445 } 446 447 #ifdef CONFIG_NEEDS_MANUAL_RELOC 448 void post_reloc(void) 449 { 450 unsigned int i; 451 452 /* 453 * We have to relocate the test table manually 454 */ 455 for (i = 0; i < post_list_size; i++) { 456 ulong addr; 457 struct post_test *test = post_list + i; 458 459 if (test->name) { 460 addr = (ulong) (test->name) + gd->reloc_off; 461 test->name = (char *)addr; 462 } 463 464 if (test->cmd) { 465 addr = (ulong) (test->cmd) + gd->reloc_off; 466 test->cmd = (char *)addr; 467 } 468 469 if (test->desc) { 470 addr = (ulong) (test->desc) + gd->reloc_off; 471 test->desc = (char *)addr; 472 } 473 474 if (test->test) { 475 addr = (ulong) (test->test) + gd->reloc_off; 476 test->test = (int (*)(int flags)) addr; 477 } 478 479 if (test->init_f) { 480 addr = (ulong) (test->init_f) + gd->reloc_off; 481 test->init_f = (int (*)(void)) addr; 482 } 483 484 if (test->reloc) { 485 addr = (ulong) (test->reloc) + gd->reloc_off; 486 test->reloc = (void (*)(void)) addr; 487 488 test->reloc(); 489 } 490 } 491 } 492 #endif 493 494 495 /* 496 * Some tests (e.g. SYSMON) need the time when post_init_f started, 497 * but we cannot use get_timer() at this point. 498 * 499 * On PowerPC we implement it using the timebase register. 500 */ 501 unsigned long post_time_ms(unsigned long base) 502 { 503 #if defined(CONFIG_PPC) || defined(CONFIG_ARM) 504 return (unsigned long)(get_ticks() / (get_tbclk() / CONFIG_SYS_HZ)) 505 - base; 506 #else 507 #warning "Not implemented yet" 508 return 0; /* Not implemented yet */ 509 #endif 510 } 511