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1 | /* | |
2 | * (C) Copyright 2002 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | ||
8 | #include <common.h> | |
9 | #include <stdio_dev.h> | |
10 | #include <watchdog.h> | |
11 | #include <div64.h> | |
12 | #include <post.h> | |
13 | ||
14 | #ifdef CONFIG_SYS_POST_HOTKEYS_GPIO | |
15 | #include <asm/gpio.h> | |
16 | #endif | |
17 | ||
18 | #ifdef CONFIG_LOGBUFFER | |
19 | #include <logbuff.h> | |
20 | #endif | |
21 | ||
22 | DECLARE_GLOBAL_DATA_PTR; | |
23 | ||
24 | #define POST_MAX_NUMBER 32 | |
25 | ||
26 | #define BOOTMODE_MAGIC 0xDEAD0000 | |
27 | ||
28 | int post_init_f(void) | |
29 | { | |
30 | int res = 0; | |
31 | unsigned int i; | |
32 | ||
33 | for (i = 0; i < post_list_size; i++) { | |
34 | struct post_test *test = post_list + i; | |
35 | ||
36 | if (test->init_f && test->init_f()) | |
37 | res = -1; | |
38 | } | |
39 | ||
40 | gd->post_init_f_time = post_time_ms(0); | |
41 | if (!gd->post_init_f_time) | |
42 | printf("%s: post_time_ms not implemented\n", __FILE__); | |
43 | ||
44 | return res; | |
45 | } | |
46 | ||
47 | /* | |
48 | * Supply a default implementation for post_hotkeys_pressed() for boards | |
49 | * without hotkey support. We always return 0 here, so that the | |
50 | * long-running tests won't be started. | |
51 | * | |
52 | * Boards with hotkey support can override this weak default function | |
53 | * by defining one in their board specific code. | |
54 | */ | |
55 | __weak int post_hotkeys_pressed(void) | |
56 | { | |
57 | #ifdef CONFIG_SYS_POST_HOTKEYS_GPIO | |
58 | int ret; | |
59 | unsigned gpio = CONFIG_SYS_POST_HOTKEYS_GPIO; | |
60 | ||
61 | ret = gpio_request(gpio, "hotkeys"); | |
62 | if (ret) { | |
63 | printf("POST: gpio hotkey request failed\n"); | |
64 | return 0; | |
65 | } | |
66 | ||
67 | gpio_direction_input(gpio); | |
68 | ret = gpio_get_value(gpio); | |
69 | gpio_free(gpio); | |
70 | ||
71 | return ret; | |
72 | #endif | |
73 | ||
74 | return 0; /* No hotkeys supported */ | |
75 | } | |
76 | ||
77 | void post_bootmode_init(void) | |
78 | { | |
79 | int bootmode = post_bootmode_get(0); | |
80 | int newword; | |
81 | ||
82 | if (post_hotkeys_pressed() && !(bootmode & POST_POWERTEST)) | |
83 | newword = BOOTMODE_MAGIC | POST_SLOWTEST; | |
84 | else if (bootmode == 0) | |
85 | newword = BOOTMODE_MAGIC | POST_POWERON; | |
86 | else if (bootmode == POST_POWERON || bootmode == POST_SLOWTEST) | |
87 | newword = BOOTMODE_MAGIC | POST_NORMAL; | |
88 | else | |
89 | /* Use old value */ | |
90 | newword = post_word_load() & ~POST_COLDBOOT; | |
91 | ||
92 | if (bootmode == 0) | |
93 | /* We are booting after power-on */ | |
94 | newword |= POST_COLDBOOT; | |
95 | ||
96 | post_word_store(newword); | |
97 | ||
98 | /* Reset activity record */ | |
99 | gd->post_log_word = 0; | |
100 | gd->post_log_res = 0; | |
101 | } | |
102 | ||
103 | int post_bootmode_get(unsigned int *last_test) | |
104 | { | |
105 | unsigned long word = post_word_load(); | |
106 | int bootmode; | |
107 | ||
108 | if ((word & 0xFFFF0000) != BOOTMODE_MAGIC) | |
109 | return 0; | |
110 | ||
111 | bootmode = word & 0x7F; | |
112 | ||
113 | if (last_test && (bootmode & POST_POWERTEST)) | |
114 | *last_test = (word >> 8) & 0xFF; | |
115 | ||
116 | return bootmode; | |
117 | } | |
118 | ||
119 | /* POST tests run before relocation only mark status bits .... */ | |
120 | static void post_log_mark_start(unsigned long testid) | |
121 | { | |
122 | gd->post_log_word |= testid; | |
123 | } | |
124 | ||
125 | static void post_log_mark_succ(unsigned long testid) | |
126 | { | |
127 | gd->post_log_res |= testid; | |
128 | } | |
129 | ||
130 | /* ... and the messages are output once we are relocated */ | |
131 | void post_output_backlog(void) | |
132 | { | |
133 | int j; | |
134 | ||
135 | for (j = 0; j < post_list_size; j++) { | |
136 | if (gd->post_log_word & (post_list[j].testid)) { | |
137 | post_log("POST %s ", post_list[j].cmd); | |
138 | if (gd->post_log_res & post_list[j].testid) | |
139 | post_log("PASSED\n"); | |
140 | else { | |
141 | post_log("FAILED\n"); | |
142 | bootstage_error(BOOTSTAGE_ID_POST_FAIL_R); | |
143 | } | |
144 | } | |
145 | } | |
146 | } | |
147 | ||
148 | static void post_bootmode_test_on(unsigned int last_test) | |
149 | { | |
150 | unsigned long word = post_word_load(); | |
151 | ||
152 | word |= POST_POWERTEST; | |
153 | ||
154 | word |= (last_test & 0xFF) << 8; | |
155 | ||
156 | post_word_store(word); | |
157 | } | |
158 | ||
159 | static void post_bootmode_test_off(void) | |
160 | { | |
161 | unsigned long word = post_word_load(); | |
162 | ||
163 | word &= ~POST_POWERTEST; | |
164 | ||
165 | post_word_store(word); | |
166 | } | |
167 | ||
168 | #ifndef CONFIG_POST_SKIP_ENV_FLAGS | |
169 | static void post_get_env_flags(int *test_flags) | |
170 | { | |
171 | int flag[] = { POST_POWERON, POST_NORMAL, POST_SLOWTEST, | |
172 | POST_CRITICAL }; | |
173 | char *var[] = { "post_poweron", "post_normal", "post_slowtest", | |
174 | "post_critical" }; | |
175 | int varnum = ARRAY_SIZE(var); | |
176 | char list[128]; /* long enough for POST list */ | |
177 | char *name; | |
178 | char *s; | |
179 | int last; | |
180 | int i, j; | |
181 | ||
182 | for (i = 0; i < varnum; i++) { | |
183 | if (getenv_f(var[i], list, sizeof(list)) <= 0) | |
184 | continue; | |
185 | ||
186 | for (j = 0; j < post_list_size; j++) | |
187 | test_flags[j] &= ~flag[i]; | |
188 | ||
189 | last = 0; | |
190 | name = list; | |
191 | while (!last) { | |
192 | while (*name && *name == ' ') | |
193 | name++; | |
194 | if (*name == 0) | |
195 | break; | |
196 | s = name + 1; | |
197 | while (*s && *s != ' ') | |
198 | s++; | |
199 | if (*s == 0) | |
200 | last = 1; | |
201 | else | |
202 | *s = 0; | |
203 | ||
204 | for (j = 0; j < post_list_size; j++) { | |
205 | if (strcmp(post_list[j].cmd, name) == 0) { | |
206 | test_flags[j] |= flag[i]; | |
207 | break; | |
208 | } | |
209 | } | |
210 | ||
211 | if (j == post_list_size) | |
212 | printf("No such test: %s\n", name); | |
213 | ||
214 | name = s + 1; | |
215 | } | |
216 | } | |
217 | } | |
218 | #endif | |
219 | ||
220 | static void post_get_flags(int *test_flags) | |
221 | { | |
222 | int j; | |
223 | ||
224 | for (j = 0; j < post_list_size; j++) | |
225 | test_flags[j] = post_list[j].flags; | |
226 | ||
227 | #ifndef CONFIG_POST_SKIP_ENV_FLAGS | |
228 | post_get_env_flags(test_flags); | |
229 | #endif | |
230 | ||
231 | for (j = 0; j < post_list_size; j++) | |
232 | if (test_flags[j] & POST_POWERON) | |
233 | test_flags[j] |= POST_SLOWTEST; | |
234 | } | |
235 | ||
236 | __weak void show_post_progress(unsigned int test_num, int before, int result) | |
237 | { | |
238 | } | |
239 | ||
240 | static int post_run_single(struct post_test *test, | |
241 | int test_flags, int flags, unsigned int i) | |
242 | { | |
243 | if ((flags & test_flags & POST_ALWAYS) && | |
244 | (flags & test_flags & POST_MEM)) { | |
245 | WATCHDOG_RESET(); | |
246 | ||
247 | if (!(flags & POST_REBOOT)) { | |
248 | if ((test_flags & POST_REBOOT) && | |
249 | !(flags & POST_MANUAL)) { | |
250 | post_bootmode_test_on( | |
251 | (gd->flags & GD_FLG_POSTFAIL) ? | |
252 | POST_FAIL_SAVE | i : i); | |
253 | } | |
254 | ||
255 | if (test_flags & POST_PREREL) | |
256 | post_log_mark_start(test->testid); | |
257 | else | |
258 | post_log("POST %s ", test->cmd); | |
259 | } | |
260 | ||
261 | show_post_progress(i, POST_BEFORE, POST_FAILED); | |
262 | ||
263 | if (test_flags & POST_PREREL) { | |
264 | if ((*test->test)(flags) == 0) { | |
265 | post_log_mark_succ(test->testid); | |
266 | show_post_progress(i, POST_AFTER, POST_PASSED); | |
267 | } else { | |
268 | show_post_progress(i, POST_AFTER, POST_FAILED); | |
269 | if (test_flags & POST_CRITICAL) | |
270 | gd->flags |= GD_FLG_POSTFAIL; | |
271 | if (test_flags & POST_STOP) | |
272 | gd->flags |= GD_FLG_POSTSTOP; | |
273 | } | |
274 | } else { | |
275 | if ((*test->test)(flags) != 0) { | |
276 | post_log("FAILED\n"); | |
277 | bootstage_error(BOOTSTAGE_ID_POST_FAIL_R); | |
278 | show_post_progress(i, POST_AFTER, POST_FAILED); | |
279 | if (test_flags & POST_CRITICAL) | |
280 | gd->flags |= GD_FLG_POSTFAIL; | |
281 | if (test_flags & POST_STOP) | |
282 | gd->flags |= GD_FLG_POSTSTOP; | |
283 | } else { | |
284 | post_log("PASSED\n"); | |
285 | show_post_progress(i, POST_AFTER, POST_PASSED); | |
286 | } | |
287 | } | |
288 | ||
289 | if ((test_flags & POST_REBOOT) && !(flags & POST_MANUAL)) | |
290 | post_bootmode_test_off(); | |
291 | ||
292 | return 0; | |
293 | } else { | |
294 | return -1; | |
295 | } | |
296 | } | |
297 | ||
298 | int post_run(char *name, int flags) | |
299 | { | |
300 | unsigned int i; | |
301 | int test_flags[POST_MAX_NUMBER]; | |
302 | ||
303 | post_get_flags(test_flags); | |
304 | ||
305 | if (name == NULL) { | |
306 | unsigned int last; | |
307 | ||
308 | if (gd->flags & GD_FLG_POSTSTOP) | |
309 | return 0; | |
310 | ||
311 | if (post_bootmode_get(&last) & POST_POWERTEST) { | |
312 | if (last & POST_FAIL_SAVE) { | |
313 | last &= ~POST_FAIL_SAVE; | |
314 | gd->flags |= GD_FLG_POSTFAIL; | |
315 | } | |
316 | if (last < post_list_size && | |
317 | (flags & test_flags[last] & POST_ALWAYS) && | |
318 | (flags & test_flags[last] & POST_MEM)) { | |
319 | ||
320 | post_run_single(post_list + last, | |
321 | test_flags[last], | |
322 | flags | POST_REBOOT, last); | |
323 | ||
324 | for (i = last + 1; i < post_list_size; i++) { | |
325 | if (gd->flags & GD_FLG_POSTSTOP) | |
326 | break; | |
327 | post_run_single(post_list + i, | |
328 | test_flags[i], | |
329 | flags, i); | |
330 | } | |
331 | } | |
332 | } else { | |
333 | for (i = 0; i < post_list_size; i++) { | |
334 | if (gd->flags & GD_FLG_POSTSTOP) | |
335 | break; | |
336 | post_run_single(post_list + i, | |
337 | test_flags[i], | |
338 | flags, i); | |
339 | } | |
340 | } | |
341 | ||
342 | return 0; | |
343 | } else { | |
344 | for (i = 0; i < post_list_size; i++) { | |
345 | if (strcmp(post_list[i].cmd, name) == 0) | |
346 | break; | |
347 | } | |
348 | ||
349 | if (i < post_list_size) { | |
350 | WATCHDOG_RESET(); | |
351 | return post_run_single(post_list + i, | |
352 | test_flags[i], | |
353 | flags, i); | |
354 | } else { | |
355 | return -1; | |
356 | } | |
357 | } | |
358 | } | |
359 | ||
360 | static int post_info_single(struct post_test *test, int full) | |
361 | { | |
362 | if (test->flags & POST_MANUAL) { | |
363 | if (full) | |
364 | printf("%s - %s\n" | |
365 | " %s\n", test->cmd, test->name, test->desc); | |
366 | else | |
367 | printf(" %-15s - %s\n", test->cmd, test->name); | |
368 | ||
369 | return 0; | |
370 | } else { | |
371 | return -1; | |
372 | } | |
373 | } | |
374 | ||
375 | int post_info(char *name) | |
376 | { | |
377 | unsigned int i; | |
378 | ||
379 | if (name == NULL) { | |
380 | for (i = 0; i < post_list_size; i++) | |
381 | post_info_single(post_list + i, 0); | |
382 | ||
383 | return 0; | |
384 | } else { | |
385 | for (i = 0; i < post_list_size; i++) { | |
386 | if (strcmp(post_list[i].cmd, name) == 0) | |
387 | break; | |
388 | } | |
389 | ||
390 | if (i < post_list_size) | |
391 | return post_info_single(post_list + i, 1); | |
392 | else | |
393 | return -1; | |
394 | } | |
395 | } | |
396 | ||
397 | int post_log(char *format, ...) | |
398 | { | |
399 | va_list args; | |
400 | char printbuffer[CONFIG_SYS_PBSIZE]; | |
401 | ||
402 | va_start(args, format); | |
403 | ||
404 | /* For this to work, printbuffer must be larger than | |
405 | * anything we ever want to print. | |
406 | */ | |
407 | vsprintf(printbuffer, format, args); | |
408 | va_end(args); | |
409 | ||
410 | #ifdef CONFIG_LOGBUFFER | |
411 | /* Send to the logbuffer */ | |
412 | logbuff_log(printbuffer); | |
413 | #else | |
414 | /* Send to the stdout file */ | |
415 | puts(printbuffer); | |
416 | #endif | |
417 | ||
418 | return 0; | |
419 | } | |
420 | ||
421 | #ifdef CONFIG_NEEDS_MANUAL_RELOC | |
422 | void post_reloc(void) | |
423 | { | |
424 | unsigned int i; | |
425 | ||
426 | /* | |
427 | * We have to relocate the test table manually | |
428 | */ | |
429 | for (i = 0; i < post_list_size; i++) { | |
430 | ulong addr; | |
431 | struct post_test *test = post_list + i; | |
432 | ||
433 | if (test->name) { | |
434 | addr = (ulong)(test->name) + gd->reloc_off; | |
435 | test->name = (char *)addr; | |
436 | } | |
437 | ||
438 | if (test->cmd) { | |
439 | addr = (ulong)(test->cmd) + gd->reloc_off; | |
440 | test->cmd = (char *)addr; | |
441 | } | |
442 | ||
443 | if (test->desc) { | |
444 | addr = (ulong)(test->desc) + gd->reloc_off; | |
445 | test->desc = (char *)addr; | |
446 | } | |
447 | ||
448 | if (test->test) { | |
449 | addr = (ulong)(test->test) + gd->reloc_off; | |
450 | test->test = (int (*)(int flags)) addr; | |
451 | } | |
452 | ||
453 | if (test->init_f) { | |
454 | addr = (ulong)(test->init_f) + gd->reloc_off; | |
455 | test->init_f = (int (*)(void)) addr; | |
456 | } | |
457 | ||
458 | if (test->reloc) { | |
459 | addr = (ulong)(test->reloc) + gd->reloc_off; | |
460 | test->reloc = (void (*)(void)) addr; | |
461 | ||
462 | test->reloc(); | |
463 | } | |
464 | } | |
465 | } | |
466 | #endif | |
467 | ||
468 | ||
469 | /* | |
470 | * Some tests (e.g. SYSMON) need the time when post_init_f started, | |
471 | * but we cannot use get_timer() at this point. | |
472 | * | |
473 | * On PowerPC we implement it using the timebase register. | |
474 | */ | |
475 | unsigned long post_time_ms(unsigned long base) | |
476 | { | |
477 | #if defined(CONFIG_PPC) || defined(CONFIG_ARM) | |
478 | return (unsigned long)lldiv(get_ticks(), get_tbclk() / CONFIG_SYS_HZ) | |
479 | - base; | |
480 | #else | |
481 | #warning "Not implemented yet" | |
482 | return 0; /* Not implemented yet */ | |
483 | #endif | |
484 | } |