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