1 /* 2 * (C) Copyright 2002 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <stdio_dev.h> 10 #include <watchdog.h> 11 #include <div64.h> 12 #include <post.h> 13 14 #ifdef CONFIG_SYS_POST_HOTKEYS_GPIO 15 #include <asm/gpio.h> 16 #endif 17 18 #ifdef CONFIG_LOGBUFFER 19 #include <logbuff.h> 20 #endif 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 #define POST_MAX_NUMBER 32 25 26 #define BOOTMODE_MAGIC 0xDEAD0000 27 28 int post_init_f(void) 29 { 30 int res = 0; 31 unsigned int i; 32 33 for (i = 0; i < post_list_size; i++) { 34 struct post_test *test = post_list + i; 35 36 if (test->init_f && test->init_f()) 37 res = -1; 38 } 39 40 gd->post_init_f_time = post_time_ms(0); 41 if (!gd->post_init_f_time) 42 printf("%s: post_time_ms not implemented\n", __FILE__); 43 44 return res; 45 } 46 47 /* 48 * Supply a default implementation for post_hotkeys_pressed() for boards 49 * without hotkey support. We always return 0 here, so that the 50 * long-running tests won't be started. 51 * 52 * Boards with hotkey support can override this weak default function 53 * by defining one in their board specific code. 54 */ 55 __weak int post_hotkeys_pressed(void) 56 { 57 #ifdef CONFIG_SYS_POST_HOTKEYS_GPIO 58 int ret; 59 unsigned gpio = CONFIG_SYS_POST_HOTKEYS_GPIO; 60 61 ret = gpio_request(gpio, "hotkeys"); 62 if (ret) { 63 printf("POST: gpio hotkey request failed\n"); 64 return 0; 65 } 66 67 gpio_direction_input(gpio); 68 ret = gpio_get_value(gpio); 69 gpio_free(gpio); 70 71 return ret; 72 #endif 73 74 return 0; /* No hotkeys supported */ 75 } 76 77 void post_bootmode_init(void) 78 { 79 int bootmode = post_bootmode_get(0); 80 int newword; 81 82 if (post_hotkeys_pressed() && !(bootmode & POST_POWERTEST)) 83 newword = BOOTMODE_MAGIC | POST_SLOWTEST; 84 else if (bootmode == 0) 85 newword = BOOTMODE_MAGIC | POST_POWERON; 86 else if (bootmode == POST_POWERON || bootmode == POST_SLOWTEST) 87 newword = BOOTMODE_MAGIC | POST_NORMAL; 88 else 89 /* Use old value */ 90 newword = post_word_load() & ~POST_COLDBOOT; 91 92 if (bootmode == 0) 93 /* We are booting after power-on */ 94 newword |= POST_COLDBOOT; 95 96 post_word_store(newword); 97 98 /* Reset activity record */ 99 gd->post_log_word = 0; 100 gd->post_log_res = 0; 101 } 102 103 int post_bootmode_get(unsigned int *last_test) 104 { 105 unsigned long word = post_word_load(); 106 int bootmode; 107 108 if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) 109 return 0; 110 111 bootmode = word & 0x7F; 112 113 if (last_test && (bootmode & POST_POWERTEST)) 114 *last_test = (word >> 8) & 0xFF; 115 116 return bootmode; 117 } 118 119 /* POST tests run before relocation only mark status bits .... */ 120 static void post_log_mark_start(unsigned long testid) 121 { 122 gd->post_log_word |= testid; 123 } 124 125 static void post_log_mark_succ(unsigned long testid) 126 { 127 gd->post_log_res |= testid; 128 } 129 130 /* ... and the messages are output once we are relocated */ 131 void post_output_backlog(void) 132 { 133 int j; 134 135 for (j = 0; j < post_list_size; j++) { 136 if (gd->post_log_word & (post_list[j].testid)) { 137 post_log("POST %s ", post_list[j].cmd); 138 if (gd->post_log_res & post_list[j].testid) 139 post_log("PASSED\n"); 140 else { 141 post_log("FAILED\n"); 142 bootstage_error(BOOTSTAGE_ID_POST_FAIL_R); 143 } 144 } 145 } 146 } 147 148 static void post_bootmode_test_on(unsigned int last_test) 149 { 150 unsigned long word = post_word_load(); 151 152 word |= POST_POWERTEST; 153 154 word |= (last_test & 0xFF) << 8; 155 156 post_word_store(word); 157 } 158 159 static void post_bootmode_test_off(void) 160 { 161 unsigned long word = post_word_load(); 162 163 word &= ~POST_POWERTEST; 164 165 post_word_store(word); 166 } 167 168 #ifndef CONFIG_POST_SKIP_ENV_FLAGS 169 static void post_get_env_flags(int *test_flags) 170 { 171 int flag[] = { POST_POWERON, POST_NORMAL, POST_SLOWTEST, 172 POST_CRITICAL }; 173 char *var[] = { "post_poweron", "post_normal", "post_slowtest", 174 "post_critical" }; 175 int varnum = ARRAY_SIZE(var); 176 char list[128]; /* long enough for POST list */ 177 char *name; 178 char *s; 179 int last; 180 int i, j; 181 182 for (i = 0; i < varnum; i++) { 183 if (getenv_f(var[i], list, sizeof(list)) <= 0) 184 continue; 185 186 for (j = 0; j < post_list_size; j++) 187 test_flags[j] &= ~flag[i]; 188 189 last = 0; 190 name = list; 191 while (!last) { 192 while (*name && *name == ' ') 193 name++; 194 if (*name == 0) 195 break; 196 s = name + 1; 197 while (*s && *s != ' ') 198 s++; 199 if (*s == 0) 200 last = 1; 201 else 202 *s = 0; 203 204 for (j = 0; j < post_list_size; j++) { 205 if (strcmp(post_list[j].cmd, name) == 0) { 206 test_flags[j] |= flag[i]; 207 break; 208 } 209 } 210 211 if (j == post_list_size) 212 printf("No such test: %s\n", name); 213 214 name = s + 1; 215 } 216 } 217 } 218 #endif 219 220 static void post_get_flags(int *test_flags) 221 { 222 int j; 223 224 for (j = 0; j < post_list_size; j++) 225 test_flags[j] = post_list[j].flags; 226 227 #ifndef CONFIG_POST_SKIP_ENV_FLAGS 228 post_get_env_flags(test_flags); 229 #endif 230 231 for (j = 0; j < post_list_size; j++) 232 if (test_flags[j] & POST_POWERON) 233 test_flags[j] |= POST_SLOWTEST; 234 } 235 236 __weak void show_post_progress(unsigned int test_num, int before, int result) 237 { 238 } 239 240 static int post_run_single(struct post_test *test, 241 int test_flags, int flags, unsigned int i) 242 { 243 if ((flags & test_flags & POST_ALWAYS) && 244 (flags & test_flags & POST_MEM)) { 245 WATCHDOG_RESET(); 246 247 if (!(flags & POST_REBOOT)) { 248 if ((test_flags & POST_REBOOT) && 249 !(flags & POST_MANUAL)) { 250 post_bootmode_test_on( 251 (gd->flags & GD_FLG_POSTFAIL) ? 252 POST_FAIL_SAVE | i : i); 253 } 254 255 if (test_flags & POST_PREREL) 256 post_log_mark_start(test->testid); 257 else 258 post_log("POST %s ", test->cmd); 259 } 260 261 show_post_progress(i, POST_BEFORE, POST_FAILED); 262 263 if (test_flags & POST_PREREL) { 264 if ((*test->test)(flags) == 0) { 265 post_log_mark_succ(test->testid); 266 show_post_progress(i, POST_AFTER, POST_PASSED); 267 } else { 268 show_post_progress(i, POST_AFTER, POST_FAILED); 269 if (test_flags & POST_CRITICAL) 270 gd->flags |= GD_FLG_POSTFAIL; 271 if (test_flags & POST_STOP) 272 gd->flags |= GD_FLG_POSTSTOP; 273 } 274 } else { 275 if ((*test->test)(flags) != 0) { 276 post_log("FAILED\n"); 277 bootstage_error(BOOTSTAGE_ID_POST_FAIL_R); 278 show_post_progress(i, POST_AFTER, POST_FAILED); 279 if (test_flags & POST_CRITICAL) 280 gd->flags |= GD_FLG_POSTFAIL; 281 if (test_flags & POST_STOP) 282 gd->flags |= GD_FLG_POSTSTOP; 283 } else { 284 post_log("PASSED\n"); 285 show_post_progress(i, POST_AFTER, POST_PASSED); 286 } 287 } 288 289 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) 290 post_bootmode_test_off(); 291 292 return 0; 293 } else { 294 return -1; 295 } 296 } 297 298 int post_run(char *name, int flags) 299 { 300 unsigned int i; 301 int test_flags[POST_MAX_NUMBER]; 302 303 post_get_flags(test_flags); 304 305 if (name == NULL) { 306 unsigned int last; 307 308 if (gd->flags & GD_FLG_POSTSTOP) 309 return 0; 310 311 if (post_bootmode_get(&last) & POST_POWERTEST) { 312 if (last & POST_FAIL_SAVE) { 313 last &= ~POST_FAIL_SAVE; 314 gd->flags |= GD_FLG_POSTFAIL; 315 } 316 if (last < post_list_size && 317 (flags & test_flags[last] & POST_ALWAYS) && 318 (flags & test_flags[last] & POST_MEM)) { 319 320 post_run_single(post_list + last, 321 test_flags[last], 322 flags | POST_REBOOT, last); 323 324 for (i = last + 1; i < post_list_size; i++) { 325 if (gd->flags & GD_FLG_POSTSTOP) 326 break; 327 post_run_single(post_list + i, 328 test_flags[i], 329 flags, i); 330 } 331 } 332 } else { 333 for (i = 0; i < post_list_size; i++) { 334 if (gd->flags & GD_FLG_POSTSTOP) 335 break; 336 post_run_single(post_list + i, 337 test_flags[i], 338 flags, i); 339 } 340 } 341 342 return 0; 343 } else { 344 for (i = 0; i < post_list_size; i++) { 345 if (strcmp(post_list[i].cmd, name) == 0) 346 break; 347 } 348 349 if (i < post_list_size) { 350 WATCHDOG_RESET(); 351 return post_run_single(post_list + i, 352 test_flags[i], 353 flags, i); 354 } else { 355 return -1; 356 } 357 } 358 } 359 360 static int post_info_single(struct post_test *test, int full) 361 { 362 if (test->flags & POST_MANUAL) { 363 if (full) 364 printf("%s - %s\n" 365 " %s\n", test->cmd, test->name, test->desc); 366 else 367 printf(" %-15s - %s\n", test->cmd, test->name); 368 369 return 0; 370 } else { 371 return -1; 372 } 373 } 374 375 int post_info(char *name) 376 { 377 unsigned int i; 378 379 if (name == NULL) { 380 for (i = 0; i < post_list_size; i++) 381 post_info_single(post_list + i, 0); 382 383 return 0; 384 } else { 385 for (i = 0; i < post_list_size; i++) { 386 if (strcmp(post_list[i].cmd, name) == 0) 387 break; 388 } 389 390 if (i < post_list_size) 391 return post_info_single(post_list + i, 1); 392 else 393 return -1; 394 } 395 } 396 397 int post_log(char *format, ...) 398 { 399 va_list args; 400 char printbuffer[CONFIG_SYS_PBSIZE]; 401 402 va_start(args, format); 403 404 /* For this to work, printbuffer must be larger than 405 * anything we ever want to print. 406 */ 407 vsprintf(printbuffer, format, args); 408 va_end(args); 409 410 #ifdef CONFIG_LOGBUFFER 411 /* Send to the logbuffer */ 412 logbuff_log(printbuffer); 413 #else 414 /* Send to the stdout file */ 415 puts(printbuffer); 416 #endif 417 418 return 0; 419 } 420 421 #ifdef CONFIG_NEEDS_MANUAL_RELOC 422 void post_reloc(void) 423 { 424 unsigned int i; 425 426 /* 427 * We have to relocate the test table manually 428 */ 429 for (i = 0; i < post_list_size; i++) { 430 ulong addr; 431 struct post_test *test = post_list + i; 432 433 if (test->name) { 434 addr = (ulong)(test->name) + gd->reloc_off; 435 test->name = (char *)addr; 436 } 437 438 if (test->cmd) { 439 addr = (ulong)(test->cmd) + gd->reloc_off; 440 test->cmd = (char *)addr; 441 } 442 443 if (test->desc) { 444 addr = (ulong)(test->desc) + gd->reloc_off; 445 test->desc = (char *)addr; 446 } 447 448 if (test->test) { 449 addr = (ulong)(test->test) + gd->reloc_off; 450 test->test = (int (*)(int flags)) addr; 451 } 452 453 if (test->init_f) { 454 addr = (ulong)(test->init_f) + gd->reloc_off; 455 test->init_f = (int (*)(void)) addr; 456 } 457 458 if (test->reloc) { 459 addr = (ulong)(test->reloc) + gd->reloc_off; 460 test->reloc = (void (*)(void)) addr; 461 462 test->reloc(); 463 } 464 } 465 } 466 #endif 467 468 469 /* 470 * Some tests (e.g. SYSMON) need the time when post_init_f started, 471 * but we cannot use get_timer() at this point. 472 * 473 * On PowerPC we implement it using the timebase register. 474 */ 475 unsigned long post_time_ms(unsigned long base) 476 { 477 #if defined(CONFIG_PPC) || defined(CONFIG_BLACKFIN) || defined(CONFIG_ARM) 478 return (unsigned long)lldiv(get_ticks(), get_tbclk() / CONFIG_SYS_HZ) 479 - base; 480 #else 481 #warning "Not implemented yet" 482 return 0; /* Not implemented yet */ 483 #endif 484 } 485