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Diffstat (limited to 'post/drivers/rtc.c')
-rw-r--r--post/drivers/rtc.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/post/drivers/rtc.c b/post/drivers/rtc.c
index 4afe8e6..66e5265 100644
--- a/post/drivers/rtc.c
+++ b/post/drivers/rtc.c
@@ -28,6 +28,8 @@
*
* The Real Time Clock (RTC) operation is verified by this test.
* The following features are verified:
+ * o) RTC Power Fault
+ * This is verified by analyzing the rtc_get() return status.
* o) Time uniformity
* This is verified by reading RTC in polling within
* a short period of time.
@@ -94,6 +96,10 @@ int rtc_post_test (int flags)
unsigned int ynl = 1999;
unsigned int yl = 2000;
unsigned int skipped = 0;
+ int reliable;
+
+ /* Time reliability */
+ reliable = rtc_get (&svtm);
/* Time uniformity */
if (rtc_post_skip (&diff) != 0) {
@@ -174,6 +180,15 @@ int rtc_post_test (int flags)
}
rtc_post_restore (&svtm, skipped);
+ /* If come here, then RTC operates correcty, check the correctness
+ * of the time it reports.
+ */
+ if (reliable < 0) {
+ post_log ("RTC Time is not reliable! Power fault? \n");
+
+ return -1;
+ }
+
return 0;
}