3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * The Real Time Clock (RTC) operation is verified by this test.
30 * The following features are verified:
32 * This is verified by reading RTC in polling within
33 * a short period of time.
34 * o) Passing month boundaries
35 * This is checked by setting RTC to a second before
36 * a month boundary and reading it after its passing the
37 * boundary. The test is performed for both leap- and
46 #if CONFIG_POST & CFG_POST_RTC
48 static int rtc_post_skip (ulong * diff)
56 start1 = get_timer (0);
60 start2 = get_timer (0);
61 if (tm1.tm_sec != tm2.tm_sec)
63 if (start2 - start1 > 1500)
67 if (tm1.tm_sec != tm2.tm_sec) {
68 *diff = start2 - start1;
76 static void rtc_post_restore (struct rtc_time *tm, unsigned int sec)
78 time_t t = mktime (tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour,
79 tm->tm_min, tm->tm_sec) + sec;
87 int rtc_post_test (int flags)
92 static unsigned int daysnl[] =
93 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
94 static unsigned int daysl[] =
95 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
96 unsigned int ynl = 1999;
97 unsigned int yl = 2000;
98 unsigned int skipped = 0;
100 /* Time uniformity */
101 if (rtc_post_skip (&diff) != 0) {
102 post_log ("Timeout while waiting for a new second !\n");
107 for (i = 0; i < 5; i++) {
108 if (rtc_post_skip (&diff) != 0) {
109 post_log ("Timeout while waiting for a new second !\n");
114 if (diff < 950 || diff > 1050) {
115 post_log ("Invalid second duration !\n");
121 /* Passing month boundaries */
123 if (rtc_post_skip (&diff) != 0) {
124 post_log ("Timeout while waiting for a new second !\n");
130 for (i = 0; i < 12; i++) {
131 time_t t = mktime (ynl, i + 1, daysnl[i], 23, 59, 59);
138 if (rtc_post_skip (&diff) != 0) {
139 rtc_post_restore (&svtm, skipped);
140 post_log ("Timeout while waiting for a new second !\n");
146 if (tm.tm_mon == i + 1) {
147 rtc_post_restore (&svtm, skipped);
148 post_log ("Month %d boundary is not passed !\n", i + 1);
154 for (i = 0; i < 12; i++) {
155 time_t t = mktime (yl, i + 1, daysl[i], 23, 59, 59);
162 if (rtc_post_skip (&diff) != 0) {
163 rtc_post_restore (&svtm, skipped);
164 post_log ("Timeout while waiting for a new second !\n");
170 if (tm.tm_mon == i + 1) {
171 rtc_post_restore (&svtm, skipped);
172 post_log ("Month %d boundary is not passed !\n", i + 1);
177 rtc_post_restore (&svtm, skipped);
182 #endif /* CONFIG_POST & CFG_POST_RTC */
183 #endif /* CONFIG_POST */