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