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