post.c 9.76 KB
Newer Older
Alexander Yurtsev's avatar
Alexander Yurtsev committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474
/*
 * (C) Copyright 2002
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <stdio_dev.h>
#include <watchdog.h>
#include <post.h>

#ifdef CONFIG_LOGBUFFER
#include <logbuff.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

#define POST_MAX_NUMBER		32

#define BOOTMODE_MAGIC	0xDEAD0000

int post_init_f (void)
{
	int res = 0;
	unsigned int i;

	for (i = 0; i < post_list_size; i++) {
		struct post_test *test = post_list + i;

		if (test->init_f && test->init_f()) {
			res = -1;
		}
	}

	gd->post_init_f_time = post_time_ms(0);
	if (!gd->post_init_f_time)
	{
		printf("post/post.c: post_time_ms seems not to be implemented\n");
	}

	return res;
}

/*
 * Supply a default implementation for post_hotkeys_pressed() for boards
 * without hotkey support. We always return 0 here, so that the
 * long-running tests won't be started.
 *
 * Boards with hotkey support can override this weak default function
 * by defining one in their board specific code.
 */
int __post_hotkeys_pressed(void)
{
	return 0;	/* No hotkeys supported */
}
int post_hotkeys_pressed(void)
	__attribute__((weak, alias("__post_hotkeys_pressed")));


void post_bootmode_init (void)
{
	int bootmode = post_bootmode_get (0);
	int newword;

	if (post_hotkeys_pressed() && !(bootmode & POST_POWERTEST)) {
		newword = BOOTMODE_MAGIC | POST_SLOWTEST;
	} else if (bootmode == 0) {
		newword = BOOTMODE_MAGIC | POST_POWERON;
	} else if (bootmode == POST_POWERON || bootmode == POST_SLOWTEST) {
		newword = BOOTMODE_MAGIC | POST_NORMAL;
	} else {
		/* Use old value */
		newword = post_word_load () & ~POST_COLDBOOT;
	}

	if (bootmode == 0)
	{
		/* We are booting after power-on */
		newword |= POST_COLDBOOT;
	}

	post_word_store (newword);

	/* Reset activity record */
	gd->post_log_word = 0;
}

int post_bootmode_get (unsigned int *last_test)
{
	unsigned long word = post_word_load ();
	int bootmode;

	if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) {
		return 0;
	}

	bootmode = word & 0x7F;

	if (last_test && (bootmode & POST_POWERTEST)) {
		*last_test = (word >> 8) & 0xFF;
	}

	return bootmode;
}

/* POST tests run before relocation only mark status bits .... */
static void post_log_mark_start ( unsigned long testid )
{
	gd->post_log_word |= (testid)<<16;
}

static void post_log_mark_succ ( unsigned long testid )
{
	gd->post_log_word |= testid;
}

/* ... and the messages are output once we are relocated */
void post_output_backlog ( void )
{
	int j;

	for (j = 0; j < post_list_size; j++) {
		if (gd->post_log_word & (post_list[j].testid<<16)) {
			post_log ("POST %s ", post_list[j].cmd);
			if (gd->post_log_word & post_list[j].testid)
				post_log ("PASSED\n");
			else {
				post_log ("FAILED\n");
				show_boot_progress (-31);
			}
		}
	}
}

static void post_bootmode_test_on (unsigned int last_test)
{
	unsigned long word = post_word_load ();

	word |= POST_POWERTEST;

	word |= (last_test & 0xFF) << 8;

	post_word_store (word);
}

static void post_bootmode_test_off (void)
{
	unsigned long word = post_word_load ();

	word &= ~POST_POWERTEST;

	post_word_store (word);
}

static void post_get_flags (int *test_flags)
{
	int  flag[] = {  POST_POWERON,   POST_NORMAL,   POST_SLOWTEST,
			 POST_CRITICAL };
	char *var[] = { "post_poweron", "post_normal", "post_slowtest",
			"post_critical" };
	int varnum = sizeof (var) / sizeof (var[0]);
	char list[128];			/* long enough for POST list */
	char *name;
	char *s;
	int last;
	int i, j;

	for (j = 0; j < post_list_size; j++) {
		test_flags[j] = post_list[j].flags;
	}

	for (i = 0; i < varnum; i++) {
		if (getenv_r (var[i], list, sizeof (list)) <= 0)
			continue;

		for (j = 0; j < post_list_size; j++) {
			test_flags[j] &= ~flag[i];
		}

		last = 0;
		name = list;
		while (!last) {
			while (*name && *name == ' ')
				name++;
			if (*name == 0)
				break;
			s = name + 1;
			while (*s && *s != ' ')
				s++;
			if (*s == 0)
				last = 1;
			else
				*s = 0;

			for (j = 0; j < post_list_size; j++) {
				if (strcmp (post_list[j].cmd, name) == 0) {
					test_flags[j] |= flag[i];
					break;
				}
			}

			if (j == post_list_size) {
				printf ("No such test: %s\n", name);
			}

			name = s + 1;
		}
	}

	for (j = 0; j < post_list_size; j++) {
		if (test_flags[j] & POST_POWERON) {
			test_flags[j] |= POST_SLOWTEST;
		}
	}
}

static int post_run_single (struct post_test *test,
				int test_flags, int flags, unsigned int i)
{
	if ((flags & test_flags & POST_ALWAYS) &&
		(flags & test_flags & POST_MEM)) {
		WATCHDOG_RESET ();

		if (!(flags & POST_REBOOT)) {
			if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
				post_bootmode_test_on (
					(gd->flags & GD_FLG_POSTFAIL) ?
						POST_FAIL_SAVE | i : i);
			}

			if (test_flags & POST_PREREL)
				post_log_mark_start ( test->testid );
			else
			post_log ("POST %s ", test->cmd);
		}

		if (test_flags & POST_PREREL) {
			if ((*test->test) (flags) == 0)
				post_log_mark_succ ( test->testid );
			else {
				if (test_flags & POST_CRITICAL)
					gd->flags |= GD_FLG_POSTFAIL;
				if (test_flags & POST_STOP)
					gd->flags |= GD_FLG_POSTSTOP;
			}
		} else {
		if ((*test->test) (flags) != 0) {
			post_log ("FAILED\n");
			show_boot_progress (-32);
			if (test_flags & POST_CRITICAL)
				gd->flags |= GD_FLG_POSTFAIL;
			if (test_flags & POST_STOP)
				gd->flags |= GD_FLG_POSTSTOP;
		}
		else
			post_log ("PASSED\n");
		}

		if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) {
			post_bootmode_test_off ();
		}

		return 0;
	} else {
		return -1;
	}
}

int post_run (char *name, int flags)
{
	unsigned int i;
	int test_flags[POST_MAX_NUMBER];

	post_get_flags (test_flags);

	if (name == NULL) {
		unsigned int last;

		if (gd->flags & GD_FLG_POSTSTOP)
			return 0;

		if (post_bootmode_get (&last) & POST_POWERTEST) {
			if (last & POST_FAIL_SAVE) {
				last &= ~POST_FAIL_SAVE;
				gd->flags |= GD_FLG_POSTFAIL;
			}
			if (last < post_list_size &&
				(flags & test_flags[last] & POST_ALWAYS) &&
				(flags & test_flags[last] & POST_MEM)) {

				post_run_single (post_list + last,
						 test_flags[last],
						 flags | POST_REBOOT, last);

				for (i = last + 1; i < post_list_size; i++) {
					if (gd->flags & GD_FLG_POSTSTOP)
						break;
					post_run_single (post_list + i,
							 test_flags[i],
							 flags, i);
				}
			}
		} else {
			for (i = 0; i < post_list_size; i++) {
				if (gd->flags & GD_FLG_POSTSTOP)
					break;
				post_run_single (post_list + i,
						 test_flags[i],
						 flags, i);
			}
		}

		return 0;
	} else {
		for (i = 0; i < post_list_size; i++) {
			if (strcmp (post_list[i].cmd, name) == 0)
				break;
		}

		if (i < post_list_size) {
			WATCHDOG_RESET();
			return post_run_single (post_list + i,
						test_flags[i],
						flags, i);
		} else {
			return -1;
		}
	}
}

static int post_info_single (struct post_test *test, int full)
{
	if (test->flags & POST_MANUAL) {
		if (full)
			printf ("%s - %s\n"
				"  %s\n", test->cmd, test->name, test->desc);
		else
			printf ("  %-15s - %s\n", test->cmd, test->name);

		return 0;
	} else {
		return -1;
	}
}

int post_info (char *name)
{
	unsigned int i;

	if (name == NULL) {
		for (i = 0; i < post_list_size; i++) {
			post_info_single (post_list + i, 0);
		}

		return 0;
	} else {
		for (i = 0; i < post_list_size; i++) {
			if (strcmp (post_list[i].cmd, name) == 0)
				break;
		}

		if (i < post_list_size) {
			return post_info_single (post_list + i, 1);
		} else {
			return -1;
		}
	}
}

int post_log (char *format, ...)
{
	va_list args;
	uint i;
	char printbuffer[CONFIG_SYS_PBSIZE];

	va_start (args, format);

	/* For this to work, printbuffer must be larger than
	 * anything we ever want to print.
	 */
	i = vsprintf (printbuffer, format, args);
	va_end (args);

#ifdef CONFIG_LOGBUFFER
	/* Send to the logbuffer */
	logbuff_log (printbuffer);
#else
	/* Send to the stdout file */
	puts (printbuffer);
#endif

	return 0;
}

#ifndef CONFIG_RELOC_FIXUP_WORKS
void post_reloc (void)
{
	unsigned int i;

	/*
	 * We have to relocate the test table manually
	 */
	for (i = 0; i < post_list_size; i++) {
		ulong addr;
		struct post_test *test = post_list + i;

		if (test->name) {
			addr = (ulong) (test->name) + gd->reloc_off;
			test->name = (char *) addr;
		}

		if (test->cmd) {
			addr = (ulong) (test->cmd) + gd->reloc_off;
			test->cmd = (char *) addr;
		}

		if (test->desc) {
			addr = (ulong) (test->desc) + gd->reloc_off;
			test->desc = (char *) addr;
		}

		if (test->test) {
			addr = (ulong) (test->test) + gd->reloc_off;
			test->test = (int (*)(int flags)) addr;
		}

		if (test->init_f) {
			addr = (ulong) (test->init_f) + gd->reloc_off;
			test->init_f = (int (*)(void)) addr;
		}

		if (test->reloc) {
			addr = (ulong) (test->reloc) + gd->reloc_off;
			test->reloc = (void (*)(void)) addr;

			test->reloc();
		}
	}
}
#endif


/*
 * Some tests (e.g. SYSMON) need the time when post_init_f started,
 * but we cannot use get_timer() at this point.
 *
 * On PowerPC we implement it using the timebase register.
 */
unsigned long post_time_ms (unsigned long base)
{
#ifdef CONFIG_PPC
	return (unsigned long)(get_ticks () / (get_tbclk () / CONFIG_SYS_HZ)) - base;
#else
#warning "Not implemented yet"
	return 0; /* Not implemented yet */
#endif
}