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 { 59 printf("post/post.c: post_time_ms seems not to be implemented\n"); 60 } 61 62 return res; 63 } 64 65 /* 66 * Supply a default implementation for post_hotkeys_pressed() for boards 67 * without hotkey support. We always return 0 here, so that the 68 * long-running tests won't be started. 69 * 70 * Boards with hotkey support can override this weak default function 71 * by defining one in their board specific code. 72 */ 73 int __post_hotkeys_pressed(void) 74 { 75 #ifdef CONFIG_SYS_POST_HOTKEYS_GPIO 76 int ret; 77 unsigned gpio = CONFIG_SYS_POST_HOTKEYS_GPIO; 78 79 ret = gpio_request(gpio, "hotkeys"); 80 if (ret) { 81 printf("POST: gpio hotkey request failed\n"); 82 return 0; 83 } 84 85 gpio_direction_input(gpio); 86 ret = gpio_get_value(gpio); 87 gpio_free(gpio); 88 89 return ret; 90 #endif 91 92 return 0; /* No hotkeys supported */ 93 } 94 int post_hotkeys_pressed(void) 95 __attribute__((weak, alias("__post_hotkeys_pressed"))); 96 97 98 void post_bootmode_init (void) 99 { 100 int bootmode = post_bootmode_get (0); 101 int newword; 102 103 if (post_hotkeys_pressed() && !(bootmode & POST_POWERTEST)) { 104 newword = BOOTMODE_MAGIC | POST_SLOWTEST; 105 } else if (bootmode == 0) { 106 newword = BOOTMODE_MAGIC | POST_POWERON; 107 } else if (bootmode == POST_POWERON || bootmode == POST_SLOWTEST) { 108 newword = BOOTMODE_MAGIC | POST_NORMAL; 109 } else { 110 /* Use old value */ 111 newword = post_word_load () & ~POST_COLDBOOT; 112 } 113 114 if (bootmode == 0) 115 { 116 /* We are booting after power-on */ 117 newword |= POST_COLDBOOT; 118 } 119 120 post_word_store (newword); 121 122 /* Reset activity record */ 123 gd->post_log_word = 0; 124 } 125 126 int post_bootmode_get (unsigned int *last_test) 127 { 128 unsigned long word = post_word_load (); 129 int bootmode; 130 131 if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) { 132 return 0; 133 } 134 135 bootmode = word & 0x7F; 136 137 if (last_test && (bootmode & POST_POWERTEST)) { 138 *last_test = (word >> 8) & 0xFF; 139 } 140 141 return bootmode; 142 } 143 144 /* POST tests run before relocation only mark status bits .... */ 145 static void post_log_mark_start ( unsigned long testid ) 146 { 147 gd->post_log_word |= (testid)<<16; 148 } 149 150 static void post_log_mark_succ ( unsigned long testid ) 151 { 152 gd->post_log_word |= testid; 153 } 154 155 /* ... and the messages are output once we are relocated */ 156 void post_output_backlog ( void ) 157 { 158 int j; 159 160 for (j = 0; j < post_list_size; j++) { 161 if (gd->post_log_word & (post_list[j].testid<<16)) { 162 post_log ("POST %s ", post_list[j].cmd); 163 if (gd->post_log_word & post_list[j].testid) 164 post_log ("PASSED\n"); 165 else { 166 post_log ("FAILED\n"); 167 show_boot_progress (-31); 168 } 169 } 170 } 171 } 172 173 static void post_bootmode_test_on (unsigned int last_test) 174 { 175 unsigned long word = post_word_load (); 176 177 word |= POST_POWERTEST; 178 179 word |= (last_test & 0xFF) << 8; 180 181 post_word_store (word); 182 } 183 184 static void post_bootmode_test_off (void) 185 { 186 unsigned long word = post_word_load (); 187 188 word &= ~POST_POWERTEST; 189 190 post_word_store (word); 191 } 192 193 static void post_get_flags (int *test_flags) 194 { 195 int flag[] = { POST_POWERON, POST_NORMAL, POST_SLOWTEST, 196 POST_CRITICAL }; 197 char *var[] = { "post_poweron", "post_normal", "post_slowtest", 198 "post_critical" }; 199 int varnum = ARRAY_SIZE(var); 200 char list[128]; /* long enough for POST list */ 201 char *name; 202 char *s; 203 int last; 204 int i, j; 205 206 for (j = 0; j < post_list_size; j++) { 207 test_flags[j] = post_list[j].flags; 208 } 209 210 for (i = 0; i < varnum; i++) { 211 if (getenv_f(var[i], list, sizeof (list)) <= 0) 212 continue; 213 214 for (j = 0; j < post_list_size; j++) { 215 test_flags[j] &= ~flag[i]; 216 } 217 218 last = 0; 219 name = list; 220 while (!last) { 221 while (*name && *name == ' ') 222 name++; 223 if (*name == 0) 224 break; 225 s = name + 1; 226 while (*s && *s != ' ') 227 s++; 228 if (*s == 0) 229 last = 1; 230 else 231 *s = 0; 232 233 for (j = 0; j < post_list_size; j++) { 234 if (strcmp (post_list[j].cmd, name) == 0) { 235 test_flags[j] |= flag[i]; 236 break; 237 } 238 } 239 240 if (j == post_list_size) { 241 printf ("No such test: %s\n", name); 242 } 243 244 name = s + 1; 245 } 246 } 247 248 for (j = 0; j < post_list_size; j++) { 249 if (test_flags[j] & POST_POWERON) { 250 test_flags[j] |= POST_SLOWTEST; 251 } 252 } 253 } 254 255 void __show_post_progress (unsigned int test_num, int before, int result) 256 { 257 } 258 void show_post_progress (unsigned int, int, int) 259 __attribute__((weak, alias("__show_post_progress"))); 260 261 static int post_run_single (struct post_test *test, 262 int test_flags, int flags, unsigned int i) 263 { 264 if ((flags & test_flags & POST_ALWAYS) && 265 (flags & test_flags & POST_MEM)) { 266 WATCHDOG_RESET (); 267 268 if (!(flags & POST_REBOOT)) { 269 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) { 270 post_bootmode_test_on ( 271 (gd->flags & GD_FLG_POSTFAIL) ? 272 POST_FAIL_SAVE | i : i); 273 } 274 275 if (test_flags & POST_PREREL) 276 post_log_mark_start ( test->testid ); 277 else 278 post_log ("POST %s ", test->cmd); 279 } 280 281 show_post_progress(i, POST_BEFORE, POST_FAILED); 282 283 if (test_flags & POST_PREREL) { 284 if ((*test->test) (flags) == 0) { 285 post_log_mark_succ ( test->testid ); 286 show_post_progress(i, POST_AFTER, POST_PASSED); 287 } 288 else { 289 show_post_progress(i, POST_AFTER, POST_FAILED); 290 if (test_flags & POST_CRITICAL) 291 gd->flags |= GD_FLG_POSTFAIL; 292 if (test_flags & POST_STOP) 293 gd->flags |= GD_FLG_POSTSTOP; 294 } 295 } else { 296 if ((*test->test)(flags) != 0) { 297 post_log("FAILED\n"); 298 show_boot_progress(-32); 299 show_post_progress(i, POST_AFTER, POST_FAILED); 300 if (test_flags & POST_CRITICAL) 301 gd->flags |= GD_FLG_POSTFAIL; 302 if (test_flags & POST_STOP) 303 gd->flags |= GD_FLG_POSTSTOP; 304 } else { 305 post_log("PASSED\n"); 306 show_post_progress(i, POST_AFTER, POST_PASSED); 307 } 308 } 309 310 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) { 311 post_bootmode_test_off (); 312 } 313 314 return 0; 315 } else { 316 return -1; 317 } 318 } 319 320 int post_run (char *name, int flags) 321 { 322 unsigned int i; 323 int test_flags[POST_MAX_NUMBER]; 324 325 post_get_flags (test_flags); 326 327 if (name == NULL) { 328 unsigned int last; 329 330 if (gd->flags & GD_FLG_POSTSTOP) 331 return 0; 332 333 if (post_bootmode_get (&last) & POST_POWERTEST) { 334 if (last & POST_FAIL_SAVE) { 335 last &= ~POST_FAIL_SAVE; 336 gd->flags |= GD_FLG_POSTFAIL; 337 } 338 if (last < post_list_size && 339 (flags & test_flags[last] & POST_ALWAYS) && 340 (flags & test_flags[last] & POST_MEM)) { 341 342 post_run_single (post_list + last, 343 test_flags[last], 344 flags | POST_REBOOT, last); 345 346 for (i = last + 1; i < post_list_size; i++) { 347 if (gd->flags & GD_FLG_POSTSTOP) 348 break; 349 post_run_single (post_list + i, 350 test_flags[i], 351 flags, i); 352 } 353 } 354 } else { 355 for (i = 0; i < post_list_size; i++) { 356 if (gd->flags & GD_FLG_POSTSTOP) 357 break; 358 post_run_single (post_list + i, 359 test_flags[i], 360 flags, i); 361 } 362 } 363 364 return 0; 365 } else { 366 for (i = 0; i < post_list_size; i++) { 367 if (strcmp (post_list[i].cmd, name) == 0) 368 break; 369 } 370 371 if (i < post_list_size) { 372 WATCHDOG_RESET(); 373 return post_run_single (post_list + i, 374 test_flags[i], 375 flags, i); 376 } else { 377 return -1; 378 } 379 } 380 } 381 382 static int post_info_single (struct post_test *test, int full) 383 { 384 if (test->flags & POST_MANUAL) { 385 if (full) 386 printf ("%s - %s\n" 387 " %s\n", test->cmd, test->name, test->desc); 388 else 389 printf (" %-15s - %s\n", test->cmd, test->name); 390 391 return 0; 392 } else { 393 return -1; 394 } 395 } 396 397 int post_info (char *name) 398 { 399 unsigned int i; 400 401 if (name == NULL) { 402 for (i = 0; i < post_list_size; i++) { 403 post_info_single (post_list + i, 0); 404 } 405 406 return 0; 407 } else { 408 for (i = 0; i < post_list_size; i++) { 409 if (strcmp (post_list[i].cmd, name) == 0) 410 break; 411 } 412 413 if (i < post_list_size) { 414 return post_info_single (post_list + i, 1); 415 } else { 416 return -1; 417 } 418 } 419 } 420 421 int post_log (char *format, ...) 422 { 423 va_list args; 424 uint i; 425 char printbuffer[CONFIG_SYS_PBSIZE]; 426 427 va_start (args, format); 428 429 /* For this to work, printbuffer must be larger than 430 * anything we ever want to print. 431 */ 432 i = vsprintf (printbuffer, format, args); 433 va_end (args); 434 435 #ifdef CONFIG_LOGBUFFER 436 /* Send to the logbuffer */ 437 logbuff_log (printbuffer); 438 #else 439 /* Send to the stdout file */ 440 puts (printbuffer); 441 #endif 442 443 return 0; 444 } 445 446 #ifdef CONFIG_NEEDS_MANUAL_RELOC 447 void post_reloc (void) 448 { 449 unsigned int i; 450 451 /* 452 * We have to relocate the test table manually 453 */ 454 for (i = 0; i < post_list_size; i++) { 455 ulong addr; 456 struct post_test *test = post_list + i; 457 458 if (test->name) { 459 addr = (ulong) (test->name) + gd->reloc_off; 460 test->name = (char *) addr; 461 } 462 463 if (test->cmd) { 464 addr = (ulong) (test->cmd) + gd->reloc_off; 465 test->cmd = (char *) addr; 466 } 467 468 if (test->desc) { 469 addr = (ulong) (test->desc) + gd->reloc_off; 470 test->desc = (char *) addr; 471 } 472 473 if (test->test) { 474 addr = (ulong) (test->test) + gd->reloc_off; 475 test->test = (int (*)(int flags)) addr; 476 } 477 478 if (test->init_f) { 479 addr = (ulong) (test->init_f) + gd->reloc_off; 480 test->init_f = (int (*)(void)) addr; 481 } 482 483 if (test->reloc) { 484 addr = (ulong) (test->reloc) + gd->reloc_off; 485 test->reloc = (void (*)(void)) addr; 486 487 test->reloc(); 488 } 489 } 490 } 491 #endif 492 493 494 /* 495 * Some tests (e.g. SYSMON) need the time when post_init_f started, 496 * but we cannot use get_timer() at this point. 497 * 498 * On PowerPC we implement it using the timebase register. 499 */ 500 unsigned long post_time_ms (unsigned long base) 501 { 502 #ifdef CONFIG_PPC 503 return (unsigned long)(get_ticks () / (get_tbclk () / CONFIG_SYS_HZ)) - base; 504 #else 505 #warning "Not implemented yet" 506 return 0; /* Not implemented yet */ 507 #endif 508 } 509