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-rw-r--r--arch/blackfin/lib/post.c421
1 files changed, 421 insertions, 0 deletions
diff --git a/arch/blackfin/lib/post.c b/arch/blackfin/lib/post.c
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--- /dev/null
+++ b/arch/blackfin/lib/post.c
@@ -0,0 +1,421 @@
+/*
+ * (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;
+}
+
+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 };
+ char *var[] = { "post_poweron", "post_normal", "post_slowtest" };
+ 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_r(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;
+ }
+ }
+}
+
+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(i);
+ }
+
+ if (test_flags & POST_PREREL)
+ post_log_mark_start(test->testid);
+ else
+ post_log("POST %s ", test->cmd);
+ }
+
+ if (test_flags & POST_PREREL) {
+ if ((*test->test) (flags) == 0)
+ post_log_mark_succ(test->testid);
+ } else {
+ if ((*test->test) (flags) != 0) {
+ post_log("FAILED\n");
+ show_boot_progress (-32);
+ } else
+ post_log("PASSED\n");
+ }
+
+ 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 (post_bootmode_get(&last) & POST_POWERTEST) {
+ 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++) {
+ post_run_single(post_list + i,
+ test_flags[i],
+ flags, i);
+ }
+ }
+ } else {
+ for (i = 0; i < post_list_size; i++) {
+ 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) {
+ 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;
+}
+
+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();
+ }
+ }
+}
+
+/*
+ * 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)
+{
+ return (unsigned long)get_ticks() / (get_tbclk() / CONFIG_SYS_HZ) - base;
+}
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