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 #ifdef CONFIG_POST
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 #define POST_MAX_NUMBER         32
  38
  39 #define BOOTMODE_MAGIC  0xDEAD0000
  40
  41 int post_init_f (void)
  42 {
  43         int res = 0;
  44         unsigned int i;
  45
  46         for (i = 0; i < post_list_size; i++) {
  47                 struct post_test *test = post_list + i;
  48
  49                 if (test->init_f && test->init_f()) {
  50                         res = -1;
  51                 }
  52         }
  53
  54         gd->post_init_f_time = post_time_ms(0);
  55         if (!gd->post_init_f_time)
  56         {
  57                 printf("post/post.c: post_time_ms seems not to be implemented\n");
  58         }
  59
  60         return res;
  61 }
  62
  63 void post_bootmode_init (void)
  64 {
  65         int bootmode = post_bootmode_get (0);
  66         int newword;
  67
  68         if (post_hotkeys_pressed() && !(bootmode & POST_POWERTEST)) {
  69                 newword = BOOTMODE_MAGIC | POST_SLOWTEST;
  70         } else if (bootmode == 0) {
  71                 newword = BOOTMODE_MAGIC | POST_POWERON;
  72         } else if (bootmode == POST_POWERON || bootmode == POST_SLOWTEST) {
  73                 newword = BOOTMODE_MAGIC | POST_NORMAL;
  74         } else {
  75                 /* Use old value */
  76                 newword = post_word_load () & ~POST_COLDBOOT;
  77         }
  78
  79         if (bootmode == 0)
  80         {
  81                 /* We are booting after power-on */
  82                 newword |= POST_COLDBOOT;
  83         }
  84
  85         post_word_store (newword);
  86
  87         /* Reset activity record */
  88         gd->post_log_word = 0;
  89 }
  90
  91 int post_bootmode_get (unsigned int *last_test)
  92 {
  93         unsigned long word = post_word_load ();
  94         int bootmode;
  95
  96         if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
  97                 return 0;
  98         }
  99
 100         bootmode = word & 0x7F;
 101
 102         if (last_test && (bootmode & POST_POWERTEST)) {
 103                 *last_test = (word >> 8) & 0xFF;
 104         }
 105
 106         return bootmode;
 107 }
 108
 109 /* POST tests run before relocation only mark status bits .... */
 110 static void post_log_mark_start ( unsigned long testid )
 111 {
 112         gd->post_log_word |= (testid)<<16;
 113 }
 114
 115 static void post_log_mark_succ ( unsigned long testid )
 116 {
 117         gd->post_log_word |= testid;
 118 }
 119
 120 /* ... and the messages are output once we are relocated */
 121 void post_output_backlog ( void )
 122 {
 123         int j;
 124
 125         for (j = 0; j < post_list_size; j++) {
 126                 if (gd->post_log_word & (post_list[j].testid<<16)) {
 127                         post_log ("POST %s ", post_list[j].cmd);
 128                         if (gd->post_log_word & post_list[j].testid)
 129                                 post_log ("PASSED\n");
 130                         else {
 131                                 post_log ("FAILED\n");
 132                                 show_boot_progress (-31);
 133                         }
 134                 }
 135         }
 136 }
 137
 138 static void post_bootmode_test_on (unsigned int last_test)
 139 {
 140         unsigned long word = post_word_load ();
 141
 142         word |= POST_POWERTEST;
 143
 144         word |= (last_test & 0xFF) << 8;
 145
 146         post_word_store (word);
 147 }
 148
 149 static void post_bootmode_test_off (void)
 150 {
 151         unsigned long word = post_word_load ();
 152
 153         word &= ~POST_POWERTEST;
 154
 155         post_word_store (word);
 156 }
 157
 158 static void post_get_flags (int *test_flags)
 159 {
 160         int  flag[] = {  POST_POWERON,   POST_NORMAL,   POST_SLOWTEST,
 161                          POST_CRITICAL };
 162         char *var[] = { "post_poweron", "post_normal", "post_slowtest",
 163                         "post_critical" };
 164         int varnum = sizeof (var) / sizeof (var[0]);
 165         char list[128];                 /* long enough for POST list */
 166         char *name;
 167         char *s;
 168         int last;
 169         int i, j;
 170
 171         for (j = 0; j < post_list_size; j++) {
 172                 test_flags[j] = post_list[j].flags;
 173         }
 174
 175         for (i = 0; i < varnum; i++) {
 176                 if (getenv_r (var[i], list, sizeof (list)) <= 0)
 177                         continue;
 178
 179                 for (j = 0; j < post_list_size; j++) {
 180                         test_flags[j] &= ~flag[i];
 181                 }
 182
 183                 last = 0;
 184                 name = list;
 185                 while (!last) {
 186                         while (*name && *name == ' ')
 187                                 name++;
 188                         if (*name == 0)
 189                                 break;
 190                         s = name + 1;
 191                         while (*s && *s != ' ')
 192                                 s++;
 193                         if (*s == 0)
 194                                 last = 1;
 195                         else
 196                                 *s = 0;
 197
 198                         for (j = 0; j < post_list_size; j++) {
 199                                 if (strcmp (post_list[j].cmd, name) == 0) {
 200                                         test_flags[j] |= flag[i];
 201                                         break;
 202                                 }
 203                         }
 204
 205                         if (j == post_list_size) {
 206                                 printf ("No such test: %s\n", name);
 207                         }
 208
 209                         name = s + 1;
 210                 }
 211         }
 212
 213         for (j = 0; j < post_list_size; j++) {
 214                 if (test_flags[j] & POST_POWERON) {
 215                         test_flags[j] |= POST_SLOWTEST;
 216                 }
 217         }
 218 }
 219
 220 static int post_run_single (struct post_test *test,
 221                                 int test_flags, int flags, unsigned int i)
 222 {
 223         if ((flags & test_flags & POST_ALWAYS) &&
 224                 (flags & test_flags & POST_MEM)) {
 225                 WATCHDOG_RESET ();
 226
 227                 if (!(flags & POST_REBOOT)) {
 228                         if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 229                                 post_bootmode_test_on (
 230                                         (gd->flags & GD_FLG_POSTFAIL) ?
 231                                                 POST_FAIL_SAVE | i : i);
 232                         }
 233
 234                         if (test_flags & POST_PREREL)
 235                                 post_log_mark_start ( test->testid );
 236                         else
 237                         post_log ("POST %s ", test->cmd);
 238                 }
 239
 240                 if (test_flags & POST_PREREL) {
 241                         if ((*test->test) (flags) == 0)
 242                                 post_log_mark_succ ( test->testid );
 243                         else if (test_flags & POST_CRITICAL)
 244                                 gd->flags |= GD_FLG_POSTFAIL;
 245                 } else {
 246                 if ((*test->test) (flags) != 0) {
 247                         post_log ("FAILED\n");
 248                         show_boot_progress (-32);
 249                         if (test_flags & POST_CRITICAL)
 250                                 gd->flags |= GD_FLG_POSTFAIL;
 251                 }
 252                 else
 253                         post_log ("PASSED\n");
 254                 }
 255
 256                 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 257                         post_bootmode_test_off ();
 258                 }
 259
 260                 return 0;
 261         } else {
 262                 return -1;
 263         }
 264 }
 265
 266 int post_run (char *name, int flags)
 267 {
 268         unsigned int i;
 269         int test_flags[POST_MAX_NUMBER];
 270
 271         post_get_flags (test_flags);
 272
 273         if (name == NULL) {
 274                 unsigned int last;
 275
 276                 if (post_bootmode_get (&last) & POST_POWERTEST) {
 277                         if (last & POST_FAIL_SAVE) {
 278                                 last &= ~POST_FAIL_SAVE;
 279                                 gd->flags |= GD_FLG_POSTFAIL;
 280                         }
 281                         if (last < post_list_size &&
 282                                 (flags & test_flags[last] & POST_ALWAYS) &&
 283                                 (flags & test_flags[last] & POST_MEM)) {
 284
 285                                 post_run_single (post_list + last,
 286                                                  test_flags[last],
 287                                                  flags | POST_REBOOT, last);
 288
 289                                 for (i = last + 1; i < post_list_size; i++) {
 290                                         post_run_single (post_list + i,
 291                                                          test_flags[i],
 292                                                          flags, i);
 293                                 }
 294                         }
 295                 } else {
 296                         for (i = 0; i < post_list_size; i++) {
 297                                 post_run_single (post_list + i,
 298                                                  test_flags[i],
 299                                                  flags, i);
 300                         }
 301                 }
 302
 303                 return 0;
 304         } else {
 305                 for (i = 0; i < post_list_size; i++) {
 306                         if (strcmp (post_list[i].cmd, name) == 0)
 307                                 break;
 308                 }
 309
 310                 if (i < post_list_size) {
 311                         return post_run_single (post_list + i,
 312                                                 test_flags[i],
 313                                                 flags, i);
 314                 } else {
 315                         return -1;
 316                 }
 317         }
 318 }
 319
 320 static int post_info_single (struct post_test *test, int full)
 321 {
 322         if (test->flags & POST_MANUAL) {
 323                 if (full)
 324                         printf ("%s - %s\n"
 325                                 "  %s\n", test->cmd, test->name, test->desc);
 326                 else
 327                         printf ("  %-15s - %s\n", test->cmd, test->name);
 328
 329                 return 0;
 330         } else {
 331                 return -1;
 332         }
 333 }
 334
 335 int post_info (char *name)
 336 {
 337         unsigned int i;
 338
 339         if (name == NULL) {
 340                 for (i = 0; i < post_list_size; i++) {
 341                         post_info_single (post_list + i, 0);
 342                 }
 343
 344                 return 0;
 345         } else {
 346                 for (i = 0; i < post_list_size; i++) {
 347                         if (strcmp (post_list[i].cmd, name) == 0)
 348                                 break;
 349                 }
 350
 351                 if (i < post_list_size) {
 352                         return post_info_single (post_list + i, 1);
 353                 } else {
 354                         return -1;
 355                 }
 356         }
 357 }
 358
 359 int post_log (char *format, ...)
 360 {
 361         va_list args;
 362         uint i;
 363         char printbuffer[CFG_PBSIZE];
 364
 365         va_start (args, format);
 366
 367         /* For this to work, printbuffer must be larger than
 368          * anything we ever want to print.
 369          */
 370         i = vsprintf (printbuffer, format, args);
 371         va_end (args);
 372
 373 #ifdef CONFIG_LOGBUFFER
 374         /* Send to the logbuffer */
 375         logbuff_log (printbuffer);
 376 #else
 377         /* Send to the stdout file */
 378         puts (printbuffer);
 379 #endif
 380
 381         return 0;
 382 }
 383
 384 void post_reloc (void)
 385 {
 386         unsigned int i;
 387
 388         /*
 389          * We have to relocate the test table manually
 390          */
 391         for (i = 0; i < post_list_size; i++) {
 392                 ulong addr;
 393                 struct post_test *test = post_list + i;
 394
 395                 if (test->name) {
 396                         addr = (ulong) (test->name) + gd->reloc_off;
 397                         test->name = (char *) addr;
 398                 }
 399
 400                 if (test->cmd) {
 401                         addr = (ulong) (test->cmd) + gd->reloc_off;
 402                         test->cmd = (char *) addr;
 403                 }
 404
 405                 if (test->desc) {
 406                         addr = (ulong) (test->desc) + gd->reloc_off;
 407                         test->desc = (char *) addr;
 408                 }
 409
 410                 if (test->test) {
 411                         addr = (ulong) (test->test) + gd->reloc_off;
 412                         test->test = (int (*)(int flags)) addr;
 413                 }
 414
 415                 if (test->init_f) {
 416                         addr = (ulong) (test->init_f) + gd->reloc_off;
 417                         test->init_f = (int (*)(void)) addr;
 418                 }
 419
 420                 if (test->reloc) {
 421                         addr = (ulong) (test->reloc) + gd->reloc_off;
 422                         test->reloc = (void (*)(void)) addr;
 423
 424                         test->reloc();
 425                 }
 426         }
 427 }
 428
 429
 430 /*
 431  * Some tests (e.g. SYSMON) need the time when post_init_f started,
 432  * but we cannot use get_timer() at this point.
 433  *
 434  * On PowerPC we implement it using the timebase register.
 435  */
 436 unsigned long post_time_ms (unsigned long base)
 437 {
 438 #ifdef CONFIG_PPC
 439         return (unsigned long)(get_ticks () / (get_tbclk () / CFG_HZ)) - base;
 440 #else
 441 #warning "Not implemented yet"
 442         return 0; /* Not implemented yet */
 443 #endif
 444 }
 445
 446 #endif /* CONFIG_POST */