Initial revision
diff --git a/common/cmd_date.c b/common/cmd_date.c
new file mode 100644
index 0000000..1472e3f
--- /dev/null
+++ b/common/cmd_date.c
@@ -0,0 +1,189 @@
+/*
+ * (C) Copyright 2001
+ * 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
+ */
+
+/*
+ * RTC, Date & Time support: get and set date & time
+ */
+#include <common.h>
+#include <command.h>
+#include <rtc.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_DATE)
+
+const char *weekdays[] = {
+ "Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur",
+};
+
+int mk_date (char *, struct rtc_time *);
+
+int do_date (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ struct rtc_time tm;
+ int rcode = 0;
+
+ switch (argc) {
+ case 2: /* set date & time */
+ if (strcmp(argv[1],"reset") == 0) {
+ printf ("Reset RTC...\n");
+ rtc_reset ();
+ } else {
+ /* initialize tm with current time */
+ rtc_get (&tm);
+ /* insert new date & time */
+ if (mk_date (argv[1], &tm) != 0) {
+ printf ("## Bad date format\n");
+ return 1;
+ }
+ /* and write to RTC */
+ rtc_set (&tm);
+ }
+ /* FALL TROUGH */
+ case 1: /* get date & time */
+ rtc_get (&tm);
+
+ printf ("Date: %4d-%02d-%02d (%sday) Time: %2d:%02d:%02d\n",
+ tm.tm_year, tm.tm_mon, tm.tm_mday,
+ (tm.tm_wday<0 || tm.tm_wday>6) ?
+ "unknown " : weekdays[tm.tm_wday],
+ tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+ return 0;
+ default:
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ rcode = 1;
+ }
+ return rcode;
+}
+
+/*
+ * simple conversion of two-digit string with error checking
+ */
+static int cnvrt2 (char *str, int *valp)
+{
+ int val;
+
+ if ((*str < '0') || (*str > '9'))
+ return (-1);
+
+ val = *str - '0';
+
+ ++str;
+
+ if ((*str < '0') || (*str > '9'))
+ return (-1);
+
+ *valp = 10 * val + (*str - '0');
+
+ return (0);
+}
+
+/*
+ * Convert date string: MMDDhhmm[[CC]YY][.ss]
+ *
+ * Some basic checking for valid values is done, but this will not catch
+ * all possible error conditions.
+ */
+int mk_date (char *datestr, struct rtc_time *tmp)
+{
+ int len, val;
+ char *ptr;
+
+ ptr = strchr (datestr,'.');
+ len = strlen (datestr);
+
+ /* Set seconds */
+ if (ptr) {
+ int sec;
+
+ *ptr++ = '\0';
+ if ((len - (ptr - datestr)) != 2)
+ return (-1);
+
+ len = strlen (datestr);
+
+ if (cnvrt2 (ptr, &sec))
+ return (-1);
+
+ tmp->tm_sec = sec;
+ } else {
+ tmp->tm_sec = 0;
+ }
+
+ if (len == 12) { /* MMDDhhmmCCYY */
+ int year, century;
+
+ if (cnvrt2 (datestr+ 8, ¢ury) ||
+ cnvrt2 (datestr+10, &year) ) {
+ return (-1);
+ }
+ tmp->tm_year = 100 * century + year;
+ } else if (len == 10) { /* MMDDhhmmYY */
+ int year, century;
+
+ century = tmp->tm_year / 100;
+ if (cnvrt2 (datestr+ 8, &year))
+ return (-1);
+ tmp->tm_year = 100 * century + year;
+ }
+
+ switch (len) {
+ case 8: /* MMDDhhmm */
+ /* fall thru */
+ case 10: /* MMDDhhmmYY */
+ /* fall thru */
+ case 12: /* MMDDhhmmCCYY */
+ if (cnvrt2 (datestr+0, &val) ||
+ val > 12) {
+ break;
+ }
+ tmp->tm_mon = val;
+ if (cnvrt2 (datestr+2, &val) ||
+ val > ((tmp->tm_mon==2) ? 29 : 31)) {
+ break;
+ }
+ tmp->tm_mday = val;
+
+ if (cnvrt2 (datestr+4, &val) ||
+ val > 23) {
+ break;
+ }
+ tmp->tm_hour = val;
+
+ if (cnvrt2 (datestr+6, &val) ||
+ val > 59) {
+ break;
+ }
+ tmp->tm_min = val;
+
+ /* calculate day of week */
+ GregorianDay (tmp);
+
+ return (0);
+ default:
+ break;
+ }
+
+ return (-1);
+}
+
+#endif /* CFG_CMD_DATE */
