Import of the watch repository from Pebble

platform/silk/boot/src/system/reset.c

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "system/reset.h"
+
+#include "drivers/display.h"
+
+#include "stm32f4xx.h"
+
+void system_reset(void) {
+  display_prepare_for_reset();
+
+  // Clear the reset reason since it will no longer
+  // apply after this bootloader reset
+  RCC_ClearFlag();
+
+  system_hard_reset();
+}
+
+void system_hard_reset(void) {
+  NVIC_SystemReset();
+  __builtin_unreachable();
+}