diff options
Diffstat (limited to 'chip/npcx/watchdog.c')
| -rw-r--r-- | chip/npcx/watchdog.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/chip/npcx/watchdog.c b/chip/npcx/watchdog.c index c228eec708..3c62cbc3f3 100644 --- a/chip/npcx/watchdog.c +++ b/chip/npcx/watchdog.c @@ -45,6 +45,17 @@ void watchdog_init_warning_timer(void) task_enable_irq(ITIM16_INT(ITIM_WDG_NO)); } +static uint8_t watchdog_count(void) +{ + uint8_t cnt; + /* Wait for two consecutive equal values are read */ + do { + cnt = NPCX_TWMWD; + } while (cnt != NPCX_TWMWD); + + return cnt; +} + void __keep watchdog_check(uint32_t excep_lr, uint32_t excep_sp) { int wd_cnt; @@ -52,7 +63,7 @@ void __keep watchdog_check(uint32_t excep_lr, uint32_t excep_sp) SET_BIT(NPCX_ITCTS(ITIM_WDG_NO), NPCX_ITCTS_TO_STS); /* Read watchdog counter from TWMWD */ - wd_cnt = NPCX_TWMWD; + wd_cnt = watchdog_count(); #if DEBUG_WDG panic_printf("WD (%d)\r\n", wd_cnt); #endif |