diff --git a/board/nm/nmhw21/board.c b/board/nm/nmhw21/board.c
index 678195e315..d827ae78b0 100644
--- a/board/nm/nmhw21/board.c
+++ b/board/nm/nmhw21/board.c
@@ -507,6 +507,14 @@ static void check_reset_reason(unsigned int reset_reason_shm_location)
 		}
 	}
 
+	/* CPU reset reason -> PRM_RSTST ; watchdog reset = 0x00000010*/
+	int cpu_reset_reason = readl(PRM_RSTST);
+	if (cpu_reset_reason & 0x10) {
+		start_reason |= SR_WATCHDOG;
+	}
+	/* reset the reset reason register */
+	writel(0x13, PRM_RSTST);
+
 	/*
 	 * Check Wakeup Events
 	 * Event Register A holds: