u-boot/post/post.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

475 lines
9.6 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#include <common.h>
#include <stdio_dev.h>
#include <watchdog.h>
#include <div64.h>
#include <post.h>
#ifdef CONFIG_SYS_POST_HOTKEYS_GPIO
#include <asm/gpio.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("%s: post_time_ms not implemented\n", __FILE__);
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.
*/
__weak int post_hotkeys_pressed(void)
{
#ifdef CONFIG_SYS_POST_HOTKEYS_GPIO
int ret;
unsigned gpio = CONFIG_SYS_POST_HOTKEYS_GPIO;
ret = gpio_request(gpio, "hotkeys");
if (ret) {
printf("POST: gpio hotkey request failed\n");
return 0;
}
gpio_direction_input(gpio);
ret = gpio_get_value(gpio);
gpio_free(gpio);
return ret;
#endif
return 0; /* No hotkeys supported */
}
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;
gd->post_log_res = 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;
}
static void post_log_mark_succ(unsigned long testid)
{
gd->post_log_res |= 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)) {
post_log("POST %s ", post_list[j].cmd);
if (gd->post_log_res & post_list[j].testid)
post_log("PASSED\n");
else {
post_log("FAILED\n");
bootstage_error(BOOTSTAGE_ID_POST_FAIL_R);
}
}
}
}
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);
}
#ifndef CONFIG_POST_SKIP_ENV_FLAGS
static void post_get_env_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 = ARRAY_SIZE(var);
char list[128]; /* long enough for POST list */
char *name;
char *s;
int last;
int i, j;
for (i = 0; i < varnum; i++) {
if (env_get_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;
}
}
}
#endif
static void post_get_flags(int *test_flags)
{
int j;
for (j = 0; j < post_list_size; j++)
test_flags[j] = post_list[j].flags;
#ifndef CONFIG_POST_SKIP_ENV_FLAGS
post_get_env_flags(test_flags);
#endif
for (j = 0; j < post_list_size; j++)
if (test_flags[j] & POST_POWERON)
test_flags[j] |= POST_SLOWTEST;
}
__weak void show_post_progress(unsigned int test_num, int before, int result)
{
}
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");
bootstage_error(BOOTSTAGE_ID_POST_FAIL_R);
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;
char printbuffer[CONFIG_SYS_PBSIZE];
va_start(args, format);
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/
vsprintf(printbuffer, format, args);
va_end(args);
/* Send to the stdout file */
puts(printbuffer);
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)
{
#if defined(CONFIG_PPC) || defined(CONFIG_ARM)
return (unsigned long)lldiv(get_ticks(), get_tbclk() / CONFIG_SYS_HZ)
- base;
#else
#warning "Not implemented yet"
return 0; /* Not implemented yet */
#endif
}