u-boot for Mediatek MT623x baseband processor
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uboot-mt623x/post/post.c

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/*
* (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
}