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