diff options
Diffstat (limited to 'u-boot/post/post.c')
| -rw-r--r-- | u-boot/post/post.c | 487 |
1 files changed, 487 insertions, 0 deletions
diff --git a/u-boot/post/post.c b/u-boot/post/post.c new file mode 100644 index 0000000..1b7f2aa --- /dev/null +++ b/u-boot/post/post.c @@ -0,0 +1,487 @@ +/* + * (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_f(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; + } + } +} + +void __show_post_progress (unsigned int test_num, int before, int result) +{ +} +void show_post_progress (unsigned int, int, int) + __attribute__((weak, alias("__show_post_progress"))); + +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); + } + + show_post_progress(i, POST_BEFORE, POST_FAILED); + + if (test_flags & POST_PREREL) { + if ((*test->test) (flags) == 0) { + post_log_mark_succ ( test->testid ); + show_post_progress(i, POST_AFTER, POST_PASSED); + } + else { + show_post_progress(i, POST_AFTER, POST_FAILED); + 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); + show_post_progress(i, POST_AFTER, POST_FAILED); + 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"); + show_post_progress(i, POST_AFTER, POST_PASSED); + } + + 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; +} + +#ifdef CONFIG_NEEDS_MANUAL_RELOC +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 +} |