post: rtc: added env overrides to uniformity test.
Added 'rtc_post_loops' to override the number of uniformity checks and
'rtc_post_diff_min' and 'rtc_post_diff_max' to override the tolerance.
Change-Id: I953bb4398d06ff0cc6cf95494408149a22ced791
diff --git a/post/drivers/rtc.c b/post/drivers/rtc.c
index cea3391..80b005a 100644
--- a/post/drivers/rtc.c
+++ b/post/drivers/rtc.c
@@ -88,7 +88,11 @@
int rtc_post_test (int flags)
{
+ char *env;
ulong diff;
+ ulong diff_min = 950;
+ ulong diff_max = 1050;
+ ulong loops = 5;
unsigned int i;
struct rtc_time svtm;
#if CONFIG_SYS_POST_RTC_MONTH_BOUNDARIES
@@ -106,22 +110,31 @@
reliable = rtc_get (&svtm);
/* Time uniformity */
+ if ((env = getenv("rtc_post_loops")))
+ loops = simple_strtoul(env, NULL, 0);
+
+ if ((env = getenv("rtc_post_diff_min")))
+ diff_min = simple_strtoul(env, NULL, 0);
+
+ if ((env = getenv("rtc_post_diff_max")))
+ diff_max = simple_strtoul(env, NULL, 0);
+
if (rtc_post_skip (&diff) != 0) {
post_log ("Timeout while waiting for a new second !\n");
return -1;
}
- for (i = 0; i < 5; i++) {
+ for (i = 0; i < loops; i++) {
if (rtc_post_skip (&diff) != 0) {
post_log ("Timeout while waiting for a new second !\n");
return -1;
}
- if (diff < 950 || diff > 1050) {
- post_log ("Invalid second duration !\n");
-
+ if (diff < diff_min || diff > diff_max) {
+ post_log ("Invalid second duration ! diff=%lu, range=[%lu, %lu]\n",
+ diff, diff_min, diff_max);
return -1;
}
}
