From 8b6d0920a8df97e00e84c54cb521ed6d177b5662 Mon Sep 17 00:00:00 2001
From: jeromecoutant <jerome.coutant@st.com>
Date: Wed, 27 Feb 2019 15:03:10 +0100
Subject: [PATCH] STM32H7: Reset Reason update

---
 targets/TARGET_STM/reset_reason.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/targets/TARGET_STM/reset_reason.c b/targets/TARGET_STM/reset_reason.c
index 6772c34ebc..b73d1f1869 100644
--- a/targets/TARGET_STM/reset_reason.c
+++ b/targets/TARGET_STM/reset_reason.c
@@ -27,18 +27,36 @@ reset_reason_t hal_reset_reason_get(void)
     }
 #endif
 
+#ifdef RCC_FLAG_LPWR1RST
+    if ((__HAL_RCC_GET_FLAG(RCC_FLAG_LPWR1RST))||(__HAL_RCC_GET_FLAG(RCC_FLAG_LPWR2RST))) {
+        return RESET_REASON_WAKE_LOW_POWER;
+    }
+#endif
+
 #ifdef RCC_FLAG_WWDGRST
     if (__HAL_RCC_GET_FLAG(RCC_FLAG_WWDGRST)) {
         return RESET_REASON_WATCHDOG;
     }
 #endif
 
+#ifdef RCC_FLAG_WWDG1RST
+    if (__HAL_RCC_GET_FLAG(RCC_FLAG_WWDG1RST)) {
+        return RESET_REASON_WATCHDOG;
+    }
+#endif
+
 #ifdef RCC_FLAG_IWDGRST
     if (__HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST)) {
         return RESET_REASON_WATCHDOG;
     }
 #endif
 
+#ifdef RCC_FLAG_IWDG1RST
+    if (__HAL_RCC_GET_FLAG(RCC_FLAG_IWDG1RST)) {
+        return RESET_REASON_WATCHDOG;
+    }
+#endif
+
 #ifdef RCC_FLAG_SFTRST
     if (__HAL_RCC_GET_FLAG(RCC_FLAG_SFTRST)) {
         return RESET_REASON_SOFTWARE;
@@ -69,7 +87,11 @@ reset_reason_t hal_reset_reason_get(void)
 
 uint32_t hal_reset_reason_get_raw(void)
 {
+#if TARGET_STM32H7
+    return RCC->RSR;
+#else /* TARGET_STM32H7 */
     return RCC->CSR;
+#endif /* TARGET_STM32H7 */
 }