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/*
* (C) Copyright 2007
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Author: Igor Lisitsin <igor@emcraft.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
/*
* Watchdog test
*
* The test verifies the watchdog timer operation.
* On the first iteration, the test routine disables interrupts and
* makes a 10-second delay. If the system does not reboot during this delay,
* the watchdog timer is not operational and the test fails. If the system
* reboots, on the second iteration the test routine reports a success.
*/
#include <post.h>
#if CONFIG_POST & CONFIG_SYS_POST_WATCHDOG
#include <watchdog.h>
int watchdog_post_test (int flags)
{
if (flags & POST_REBOOT) {
/* Test passed */
return 0;
}
else {
/* 10-second delay */
int ints = disable_interrupts ();
ulong base = post_time_ms (0);
while (post_time_ms (base) < 10000)
;
if (ints)
enable_interrupts ();
/*
* If we have reached this point, the watchdog timer
* does not work
*/
return -1;
}
}
#endif /* CONFIG_POST & CONFIG_SYS_POST_WATCHDOG */
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