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 #ifdef CONFIG_SHOW_BOOT_PROGRESS
 133                                 show_boot_progress(-31);
 134 #endif
 135                         }
 136                 }
 137         }
 138 }
 139
 140 static void post_bootmode_test_on (unsigned int last_test)
 141 {
 142         unsigned long word = post_word_load ();
 143
 144         word |= POST_POWERTEST;
 145
 146         word |= (last_test & 0xFF) << 8;
 147
 148         post_word_store (word);
 149 }
 150
 151 static void post_bootmode_test_off (void)
 152 {
 153         unsigned long word = post_word_load ();
 154
 155         word &= ~POST_POWERTEST;
 156
 157         post_word_store (word);
 158 }
 159
 160 static void post_get_flags (int *test_flags)
 161 {
 162         int  flag[] = {  POST_POWERON,   POST_NORMAL,   POST_SLOWTEST };
 163         char *var[] = { "post_poweron", "post_normal", "post_slowtest" };
 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 (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->test) (flags) != 0) {
 243                         post_log ("FAILED\n");
 244 #ifdef CONFIG_SHOW_BOOT_PROGRESS
 245                         show_boot_progress(-32);
 246 #endif
 247                 }
 248                 else
 249                         post_log ("PASSED\n");
 250                 }
 251
 252                 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 253                         post_bootmode_test_off ();
 254                 }
 255
 256                 return 0;
 257         } else {
 258                 return -1;
 259         }
 260 }
 261
 262 int post_run (char *name, int flags)
 263 {
 264         unsigned int i;
 265         int test_flags[POST_MAX_NUMBER];
 266
 267         post_get_flags (test_flags);
 268
 269         if (name == NULL) {
 270                 unsigned int last;
 271
 272                 if (post_bootmode_get (&last) & POST_POWERTEST) {
 273                         if (last < post_list_size &&
 274                                 (flags & test_flags[last] & POST_ALWAYS) &&
 275                                 (flags & test_flags[last] & POST_MEM)) {
 276
 277                                 post_run_single (post_list + last,
 278                                                  test_flags[last],
 279                                                  flags | POST_REBOOT, last);
 280
 281                                 for (i = last + 1; i < post_list_size; i++) {
 282                                         post_run_single (post_list + i,
 283                                                          test_flags[i],
 284                                                          flags, i);
 285                                 }
 286                         }
 287                 } else {
 288                         for (i = 0; i < post_list_size; i++) {
 289                                 post_run_single (post_list + i,
 290                                                  test_flags[i],
 291                                                  flags, i);
 292                         }
 293                 }
 294
 295                 return 0;
 296         } else {
 297                 for (i = 0; i < post_list_size; i++) {
 298                         if (strcmp (post_list[i].cmd, name) == 0)
 299                                 break;
 300                 }
 301
 302                 if (i < post_list_size) {
 303                         return post_run_single (post_list + i,
 304                                                 test_flags[i],
 305                                                 flags, i);
 306                 } else {
 307                         return -1;
 308                 }
 309         }
 310 }
 311
 312 static int post_info_single (struct post_test *test, int full)
 313 {
 314         if (test->flags & POST_MANUAL) {
 315                 if (full)
 316                         printf ("%s - %s\n"
 317                                 "  %s\n", test->cmd, test->name, test->desc);
 318                 else
 319                         printf ("  %-15s - %s\n", test->cmd, test->name);
 320
 321                 return 0;
 322         } else {
 323                 return -1;
 324         }
 325 }
 326
 327 int post_info (char *name)
 328 {
 329         unsigned int i;
 330
 331         if (name == NULL) {
 332                 for (i = 0; i < post_list_size; i++) {
 333                         post_info_single (post_list + i, 0);
 334                 }
 335
 336                 return 0;
 337         } else {
 338                 for (i = 0; i < post_list_size; i++) {
 339                         if (strcmp (post_list[i].cmd, name) == 0)
 340                                 break;
 341                 }
 342
 343                 if (i < post_list_size) {
 344                         return post_info_single (post_list + i, 1);
 345                 } else {
 346                         return -1;
 347                 }
 348         }
 349 }
 350
 351 int post_log (char *format, ...)
 352 {
 353         va_list args;
 354         uint i;
 355         char printbuffer[CFG_PBSIZE];
 356
 357         va_start (args, format);
 358
 359         /* For this to work, printbuffer must be larger than
 360          * anything we ever want to print.
 361          */
 362         i = vsprintf (printbuffer, format, args);
 363         va_end (args);
 364
 365 #ifdef CONFIG_LOGBUFFER
 366         /* Send to the logbuffer */
 367         logbuff_log (printbuffer);
 368 #else
 369         /* Send to the stdout file */
 370         puts (printbuffer);
 371 #endif
 372
 373         return 0;
 374 }
 375
 376 void post_reloc (void)
 377 {
 378         unsigned int i;
 379
 380         /*
 381          * We have to relocate the test table manually
 382          */
 383         for (i = 0; i < post_list_size; i++) {
 384                 ulong addr;
 385                 struct post_test *test = post_list + i;
 386
 387                 if (test->name) {
 388                         addr = (ulong) (test->name) + gd->reloc_off;
 389                         test->name = (char *) addr;
 390                 }
 391
 392                 if (test->cmd) {
 393                         addr = (ulong) (test->cmd) + gd->reloc_off;
 394                         test->cmd = (char *) addr;
 395                 }
 396
 397                 if (test->desc) {
 398                         addr = (ulong) (test->desc) + gd->reloc_off;
 399                         test->desc = (char *) addr;
 400                 }
 401
 402                 if (test->test) {
 403                         addr = (ulong) (test->test) + gd->reloc_off;
 404                         test->test = (int (*)(int flags)) addr;
 405                 }
 406
 407                 if (test->init_f) {
 408                         addr = (ulong) (test->init_f) + gd->reloc_off;
 409                         test->init_f = (int (*)(void)) addr;
 410                 }
 411
 412                 if (test->reloc) {
 413                         addr = (ulong) (test->reloc) + gd->reloc_off;
 414                         test->reloc = (void (*)(void)) addr;
 415
 416                         test->reloc();
 417                 }
 418         }
 419 }
 420
 421
 422 /*
 423  * Some tests (e.g. SYSMON) need the time when post_init_f started,
 424  * but we cannot use get_timer() at this point.
 425  *
 426  * On PowerPC we implement it using the timebase register.
 427  */
 428 unsigned long post_time_ms (unsigned long base)
 429 {
 430 #ifdef CONFIG_PPC
 431         return (unsigned long)get_ticks () / (get_tbclk () / CFG_HZ) - base;
 432 #else
 433         return 0; /* Not implemented yet */
 434 #endif
 435 }
 436
 437 #endif /* CONFIG_POST */