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 }
 125
 126 int post_bootmode_get (unsigned int *last_test)
 127 {
 128         unsigned long word = post_word_load ();
 129         int bootmode;
 130
 131         if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
 132                 return 0;
 133         }
 134
 135         bootmode = word & 0x7F;
 136
 137         if (last_test && (bootmode & POST_POWERTEST)) {
 138                 *last_test = (word >> 8) & 0xFF;
 139         }
 140
 141         return bootmode;
 142 }
 143
 144 /* POST tests run before relocation only mark status bits .... */
 145 static void post_log_mark_start ( unsigned long testid )
 146 {
 147         gd->post_log_word |= (testid)<<16;
 148 }
 149
 150 static void post_log_mark_succ ( unsigned long testid )
 151 {
 152         gd->post_log_word |= testid;
 153 }
 154
 155 /* ... and the messages are output once we are relocated */
 156 void post_output_backlog ( void )
 157 {
 158         int j;
 159
 160         for (j = 0; j < post_list_size; j++) {
 161                 if (gd->post_log_word & (post_list[j].testid<<16)) {
 162                         post_log ("POST %s ", post_list[j].cmd);
 163                         if (gd->post_log_word & post_list[j].testid)
 164                                 post_log ("PASSED\n");
 165                         else {
 166                                 post_log ("FAILED\n");
 167                                 show_boot_progress (-31);
 168                         }
 169                 }
 170         }
 171 }
 172
 173 static void post_bootmode_test_on (unsigned int last_test)
 174 {
 175         unsigned long word = post_word_load ();
 176
 177         word |= POST_POWERTEST;
 178
 179         word |= (last_test & 0xFF) << 8;
 180
 181         post_word_store (word);
 182 }
 183
 184 static void post_bootmode_test_off (void)
 185 {
 186         unsigned long word = post_word_load ();
 187
 188         word &= ~POST_POWERTEST;
 189
 190         post_word_store (word);
 191 }
 192
 193 static void post_get_flags (int *test_flags)
 194 {
 195         int  flag[] = {  POST_POWERON,   POST_NORMAL,   POST_SLOWTEST,
 196                          POST_CRITICAL };
 197         char *var[] = { "post_poweron", "post_normal", "post_slowtest",
 198                         "post_critical" };
 199         int varnum = ARRAY_SIZE(var);
 200         char list[128];                 /* long enough for POST list */
 201         char *name;
 202         char *s;
 203         int last;
 204         int i, j;
 205
 206         for (j = 0; j < post_list_size; j++) {
 207                 test_flags[j] = post_list[j].flags;
 208         }
 209
 210         for (i = 0; i < varnum; i++) {
 211                 if (getenv_f(var[i], list, sizeof (list)) <= 0)
 212                         continue;
 213
 214                 for (j = 0; j < post_list_size; j++) {
 215                         test_flags[j] &= ~flag[i];
 216                 }
 217
 218                 last = 0;
 219                 name = list;
 220                 while (!last) {
 221                         while (*name && *name == ' ')
 222                                 name++;
 223                         if (*name == 0)
 224                                 break;
 225                         s = name + 1;
 226                         while (*s && *s != ' ')
 227                                 s++;
 228                         if (*s == 0)
 229                                 last = 1;
 230                         else
 231                                 *s = 0;
 232
 233                         for (j = 0; j < post_list_size; j++) {
 234                                 if (strcmp (post_list[j].cmd, name) == 0) {
 235                                         test_flags[j] |= flag[i];
 236                                         break;
 237                                 }
 238                         }
 239
 240                         if (j == post_list_size) {
 241                                 printf ("No such test: %s\n", name);
 242                         }
 243
 244                         name = s + 1;
 245                 }
 246         }
 247
 248         for (j = 0; j < post_list_size; j++) {
 249                 if (test_flags[j] & POST_POWERON) {
 250                         test_flags[j] |= POST_SLOWTEST;
 251                 }
 252         }
 253 }
 254
 255 void __show_post_progress (unsigned int test_num, int before, int result)
 256 {
 257 }
 258 void show_post_progress (unsigned int, int, int)
 259                         __attribute__((weak, alias("__show_post_progress")));
 260
 261 static int post_run_single (struct post_test *test,
 262                                 int test_flags, int flags, unsigned int i)
 263 {
 264         if ((flags & test_flags & POST_ALWAYS) &&
 265                 (flags & test_flags & POST_MEM)) {
 266                 WATCHDOG_RESET ();
 267
 268                 if (!(flags & POST_REBOOT)) {
 269                         if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 270                                 post_bootmode_test_on (
 271                                         (gd->flags & GD_FLG_POSTFAIL) ?
 272                                                 POST_FAIL_SAVE | i : i);
 273                         }
 274
 275                         if (test_flags & POST_PREREL)
 276                                 post_log_mark_start ( test->testid );
 277                         else
 278                                 post_log ("POST %s ", test->cmd);
 279                 }
 280
 281                 show_post_progress(i, POST_BEFORE, POST_FAILED);
 282
 283                 if (test_flags & POST_PREREL) {
 284                         if ((*test->test) (flags) == 0) {
 285                                 post_log_mark_succ ( test->testid );
 286                                 show_post_progress(i, POST_AFTER, POST_PASSED);
 287                         }
 288                         else {
 289                                 show_post_progress(i, POST_AFTER, POST_FAILED);
 290                                 if (test_flags & POST_CRITICAL)
 291                                         gd->flags |= GD_FLG_POSTFAIL;
 292                                 if (test_flags & POST_STOP)
 293                                         gd->flags |= GD_FLG_POSTSTOP;
 294                         }
 295                 } else {
 296                         if ((*test->test)(flags) != 0) {
 297                                 post_log("FAILED\n");
 298                                 show_boot_progress(-32);
 299                                 show_post_progress(i, POST_AFTER, POST_FAILED);
 300                                 if (test_flags & POST_CRITICAL)
 301                                         gd->flags |= GD_FLG_POSTFAIL;
 302                                 if (test_flags & POST_STOP)
 303                                         gd->flags |= GD_FLG_POSTSTOP;
 304                         } else {
 305                                 post_log("PASSED\n");
 306                                 show_post_progress(i, POST_AFTER, POST_PASSED);
 307                         }
 308                 }
 309
 310                 if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
 311                         post_bootmode_test_off ();
 312                 }
 313
 314                 return 0;
 315         } else {
 316                 return -1;
 317         }
 318 }
 319
 320 int post_run (char *name, int flags)
 321 {
 322         unsigned int i;
 323         int test_flags[POST_MAX_NUMBER];
 324
 325         post_get_flags (test_flags);
 326
 327         if (name == NULL) {
 328                 unsigned int last;
 329
 330                 if (gd->flags & GD_FLG_POSTSTOP)
 331                         return 0;
 332
 333                 if (post_bootmode_get (&last) & POST_POWERTEST) {
 334                         if (last & POST_FAIL_SAVE) {
 335                                 last &= ~POST_FAIL_SAVE;
 336                                 gd->flags |= GD_FLG_POSTFAIL;
 337                         }
 338                         if (last < post_list_size &&
 339                                 (flags & test_flags[last] & POST_ALWAYS) &&
 340                                 (flags & test_flags[last] & POST_MEM)) {
 341
 342                                 post_run_single (post_list + last,
 343                                                  test_flags[last],
 344                                                  flags | POST_REBOOT, last);
 345
 346                                 for (i = last + 1; i < post_list_size; i++) {
 347                                         if (gd->flags & GD_FLG_POSTSTOP)
 348                                                 break;
 349                                         post_run_single (post_list + i,
 350                                                          test_flags[i],
 351                                                          flags, i);
 352                                 }
 353                         }
 354                 } else {
 355                         for (i = 0; i < post_list_size; i++) {
 356                                 if (gd->flags & GD_FLG_POSTSTOP)
 357                                         break;
 358                                 post_run_single (post_list + i,
 359                                                  test_flags[i],
 360                                                  flags, i);
 361                         }
 362                 }
 363
 364                 return 0;
 365         } else {
 366                 for (i = 0; i < post_list_size; i++) {
 367                         if (strcmp (post_list[i].cmd, name) == 0)
 368                                 break;
 369                 }
 370
 371                 if (i < post_list_size) {
 372                         WATCHDOG_RESET();
 373                         return post_run_single (post_list + i,
 374                                                 test_flags[i],
 375                                                 flags, i);
 376                 } else {
 377                         return -1;
 378                 }
 379         }
 380 }
 381
 382 static int post_info_single (struct post_test *test, int full)
 383 {
 384         if (test->flags & POST_MANUAL) {
 385                 if (full)
 386                         printf ("%s - %s\n"
 387                                 "  %s\n", test->cmd, test->name, test->desc);
 388                 else
 389                         printf ("  %-15s - %s\n", test->cmd, test->name);
 390
 391                 return 0;
 392         } else {
 393                 return -1;
 394         }
 395 }
 396
 397 int post_info (char *name)
 398 {
 399         unsigned int i;
 400
 401         if (name == NULL) {
 402                 for (i = 0; i < post_list_size; i++) {
 403                         post_info_single (post_list + i, 0);
 404                 }
 405
 406                 return 0;
 407         } else {
 408                 for (i = 0; i < post_list_size; i++) {
 409                         if (strcmp (post_list[i].cmd, name) == 0)
 410                                 break;
 411                 }
 412
 413                 if (i < post_list_size) {
 414                         return post_info_single (post_list + i, 1);
 415                 } else {
 416                         return -1;
 417                 }
 418         }
 419 }
 420
 421 int post_log (char *format, ...)
 422 {
 423         va_list args;
 424         uint i;
 425         char printbuffer[CONFIG_SYS_PBSIZE];
 426
 427         va_start (args, format);
 428
 429         /* For this to work, printbuffer must be larger than
 430          * anything we ever want to print.
 431          */
 432         i = vsprintf (printbuffer, format, args);
 433         va_end (args);
 434
 435 #ifdef CONFIG_LOGBUFFER
 436         /* Send to the logbuffer */
 437         logbuff_log (printbuffer);
 438 #else
 439         /* Send to the stdout file */
 440         puts (printbuffer);
 441 #endif
 442
 443         return 0;
 444 }
 445
 446 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 447 void post_reloc (void)
 448 {
 449         unsigned int i;
 450
 451         /*
 452          * We have to relocate the test table manually
 453          */
 454         for (i = 0; i < post_list_size; i++) {
 455                 ulong addr;
 456                 struct post_test *test = post_list + i;
 457
 458                 if (test->name) {
 459                         addr = (ulong) (test->name) + gd->reloc_off;
 460                         test->name = (char *) addr;
 461                 }
 462
 463                 if (test->cmd) {
 464                         addr = (ulong) (test->cmd) + gd->reloc_off;
 465                         test->cmd = (char *) addr;
 466                 }
 467
 468                 if (test->desc) {
 469                         addr = (ulong) (test->desc) + gd->reloc_off;
 470                         test->desc = (char *) addr;
 471                 }
 472
 473                 if (test->test) {
 474                         addr = (ulong) (test->test) + gd->reloc_off;
 475                         test->test = (int (*)(int flags)) addr;
 476                 }
 477
 478                 if (test->init_f) {
 479                         addr = (ulong) (test->init_f) + gd->reloc_off;
 480                         test->init_f = (int (*)(void)) addr;
 481                 }
 482
 483                 if (test->reloc) {
 484                         addr = (ulong) (test->reloc) + gd->reloc_off;
 485                         test->reloc = (void (*)(void)) addr;
 486
 487                         test->reloc();
 488                 }
 489         }
 490 }
 491 #endif
 492
 493
 494 /*
 495  * Some tests (e.g. SYSMON) need the time when post_init_f started,
 496  * but we cannot use get_timer() at this point.
 497  *
 498  * On PowerPC we implement it using the timebase register.
 499  */
 500 unsigned long post_time_ms (unsigned long base)
 501 {
 502 #ifdef CONFIG_PPC
 503         return (unsigned long)(get_ticks () / (get_tbclk () / CONFIG_SYS_HZ)) - base;
 504 #else
 505 #warning "Not implemented yet"
 506         return 0; /* Not implemented yet */
 507 #endif
 508 }