post/post.c

   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         gd->post_log_res = 0;
 125 }
 126
 127 int post_bootmode_get (unsigned int *last_test)
 128 {
 129         unsigned long word = post_word_load ();
 130         int bootmode;
 131
 132         if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
 133                 return 0;
 134         }
 135
 136         bootmode = word & 0x7F;
 137
 138         if (last_test && (bootmode & POST_POWERTEST)) {
 139                 *last_test = (word >> 8) & 0xFF;
 140         }
 141
 142         return bootmode;
 143 }
 144
 145 /* POST tests run before relocation only mark status bits .... */
 146 static void post_log_mark_start ( unsigned long testid )
 147 {
 148         gd->post_log_word |= testid;
 149 }
 150
 151 static void post_log_mark_succ ( unsigned long testid )
 152 {
 153         gd->post_log_res |= testid;
 154 }
 155
 156 /* ... and the messages are output once we are relocated */
 157 void post_output_backlog ( void )
 158 {
 159         int j;
 160
 161         for (j = 0; j < post_list_size; j++) {
 162                 if (gd->post_log_word & (post_list[j].testid)) {
 163                         post_log ("POST %s ", post_list[j].cmd);
 164                         if (gd->post_log_res & post_list[j].testid)
 165                                 post_log ("PASSED\n");
 166                         else {
 167                                 post_log ("FAILED\n");
 168                                 show_boot_progress (-31);
 169                         }
 170                 }
 171         }
 172 }
 173
 174 static void post_bootmode_test_on (unsigned int last_test)
 175 {
 176         unsigned long word = post_word_load ();
 177
 178         word |= POST_POWERTEST;
 179
 180         word |= (last_test & 0xFF) << 8;
 181
 182         post_word_store (word);
 183 }
 184
 185 static void post_bootmode_test_off (void)
 186 {
 187         unsigned long word = post_word_load ();
 188
 189         word &= ~POST_POWERTEST;
 190
 191         post_word_store (word);
 192 }
 193
 194 static void post_get_flags (int *test_flags)
 195 {
 196         int  flag[] = {  POST_POWERON,   POST_NORMAL,   POST_SLOWTEST,
 197                          POST_CRITICAL };
 198         char *var[] = { "post_poweron", "post_normal", "post_slowtest",
 199                         "post_critical" };
 200         int varnum = ARRAY_SIZE(var);
 201         char list[128];                 /* long enough for POST list */
 202         char *name;
 203         char *s;
 204         int last;
 205         int i, j;
 206
 207         for (j = 0; j < post_list_size; j++) {
 208                 test_flags[j] = post_list[j].flags;
 209         }
 210
 211         for (i = 0; i < varnum; i++) {
 212                 if (getenv_f(var[i], list, sizeof (list)) <= 0)
 213                         continue;
 214
 215                 for (j = 0; j < post_list_size; j++) {
 216                         test_flags[j] &= ~flag[i];
 217                 }
 218
 219                 last = 0;
 220                 name = list;
 221                 while (!last) {
 222                         while (*name && *name == ' ')
 223                                 name++;
 224                         if (*name == 0)
 225                                 break;
 226                         s = name + 1;
 227                         while (*s && *s != ' ')
 228                                 s++;
 229                         if (*s == 0)
 230                                 last = 1;
 231                         else
 232                                 *s = 0;
 233
 234                         for (j = 0; j < post_list_size; j++) {
 235                                 if (strcmp (post_list[j].cmd, name) == 0) {
 236                                         test_flags[j] |= flag[i];
 237                                         break;
 238                                 }
 239                         }
 240
 241                         if (j == post_list_size) {
 242                                 printf ("No such test: %s\n", name);
 243                         }
 244
 245                         name = s + 1;
 246                 }
 247         }
 248
 249         for (j = 0; j < post_list_size; j++) {
 250                 if (test_flags[j] & POST_POWERON) {
 251                         test_flags[j] |= POST_SLOWTEST;
 252                 }
 253         }
 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) && !(flags & POST_MANUAL)) {
 271                                 post_bootmode_test_on (
 272                                         (gd->flags & GD_FLG_POSTFAIL) ?
 273                                                 POST_FAIL_SAVE | i : i);
 274                         }
 275
 276                         if (test_flags & POST_PREREL)
 277                                 post_log_mark_start ( test->testid );
 278                         else
 279                                 post_log ("POST %s ", test->cmd);
 280                 }
 281
 282                 show_post_progress(i, POST_BEFORE, POST_FAILED);
 283
 284                 if (test_flags & POST_PREREL) {
 285                         if ((*test->test) (flags) == 0) {
 286                                 post_log_mark_succ ( test->testid );
 287                                 show_post_progress(i, POST_AFTER, POST_PASSED);
 288                         }
 289                         else {
 290                                 show_post_progress(i, POST_AFTER, POST_FAILED);
 291                                 if (test_flags & POST_CRITICAL)
 292                                         gd->flags |= GD_FLG_POSTFAIL;
 293                                 if (test_flags & POST_STOP)
 294                                         gd->flags |= GD_FLG_POSTSTOP;
 295                         }
 296                 } else {
 297                         if ((*test->test)(flags) != 0) {
 298                                 post_log("FAILED\n");
 299                                 show_boot_progress(-32);
 300                                 show_post_progress(i, POST_AFTER, POST_FAILED);
 301                                 if (test_flags & POST_CRITICAL)
 302                                         gd->flags |= GD_FLG_POSTFAIL;
 303                                 if (test_flags & POST_STOP)
 304                                         gd->flags |= GD_FLG_POSTSTOP;
 305                         } else {
 306                                 post_log("PASSED\n");
 307                                 show_post_progress(i, POST_AFTER, POST_PASSED);
 308                         }
 309                 }
 310
 311                 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 312                         post_bootmode_test_off ();
 313                 }
 314
 315                 return 0;
 316         } else {
 317                 return -1;
 318         }
 319 }
 320
 321 int post_run (char *name, int flags)
 322 {
 323         unsigned int i;
 324         int test_flags[POST_MAX_NUMBER];
 325
 326         post_get_flags (test_flags);
 327
 328         if (name == NULL) {
 329                 unsigned int last;
 330
 331                 if (gd->flags & GD_FLG_POSTSTOP)
 332                         return 0;
 333
 334                 if (post_bootmode_get (&last) & POST_POWERTEST) {
 335                         if (last & POST_FAIL_SAVE) {
 336                                 last &= ~POST_FAIL_SAVE;
 337                                 gd->flags |= GD_FLG_POSTFAIL;
 338                         }
 339                         if (last < post_list_size &&
 340                                 (flags & test_flags[last] & POST_ALWAYS) &&
 341                                 (flags & test_flags[last] & POST_MEM)) {
 342
 343                                 post_run_single (post_list + last,
 344                                                  test_flags[last],
 345                                                  flags | POST_REBOOT, last);
 346
 347                                 for (i = last + 1; i < post_list_size; i++) {
 348                                         if (gd->flags & GD_FLG_POSTSTOP)
 349                                                 break;
 350                                         post_run_single (post_list + i,
 351                                                          test_flags[i],
 352                                                          flags, i);
 353                                 }
 354                         }
 355                 } else {
 356                         for (i = 0; i < post_list_size; i++) {
 357                                 if (gd->flags & GD_FLG_POSTSTOP)
 358                                         break;
 359                                 post_run_single (post_list + i,
 360                                                  test_flags[i],
 361                                                  flags, i);
 362                         }
 363                 }
 364
 365                 return 0;
 366         } else {
 367                 for (i = 0; i < post_list_size; i++) {
 368                         if (strcmp (post_list[i].cmd, name) == 0)
 369                                 break;
 370                 }
 371
 372                 if (i < post_list_size) {
 373                         WATCHDOG_RESET();
 374                         return post_run_single (post_list + i,
 375                                                 test_flags[i],
 376                                                 flags, i);
 377                 } else {
 378                         return -1;
 379                 }
 380         }
 381 }
 382
 383 static int post_info_single (struct post_test *test, int full)
 384 {
 385         if (test->flags & POST_MANUAL) {
 386                 if (full)
 387                         printf ("%s - %s\n"
 388                                 "  %s\n", test->cmd, test->name, test->desc);
 389                 else
 390                         printf ("  %-15s - %s\n", test->cmd, test->name);
 391
 392                 return 0;
 393         } else {
 394                 return -1;
 395         }
 396 }
 397
 398 int post_info (char *name)
 399 {
 400         unsigned int i;
 401
 402         if (name == NULL) {
 403                 for (i = 0; i < post_list_size; i++) {
 404                         post_info_single (post_list + i, 0);
 405                 }
 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 #ifdef CONFIG_PPC
 504         return (unsigned long)(get_ticks () / (get_tbclk () / CONFIG_SYS_HZ)) - base;
 505 #else
 506 #warning "Not implemented yet"
 507         return 0; /* Not implemented yet */
 508 #endif
 509 }