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-rw-r--r--chip/stm32/flash-f.h26
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diff --git a/chip/stm32/flash-f.h b/chip/stm32/flash-f.h
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+/* Copyright 2019 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __CROS_EC_STM32_FLASH_F_H
+#define __CROS_EC_STM32_FLASH_F_H
+
+#include <stdbool.h>
+
+enum flash_rdp_level {
+ FLASH_RDP_LEVEL_INVALID = -1, /**< Error occurred. */
+ FLASH_RDP_LEVEL_0, /**< No read protection. */
+ FLASH_RDP_LEVEL_1, /**< Reading flash is disabled while in
+ * bootloader mode or JTAG attached.
+ * Changing to Level 0 from this level
+ * triggers mass erase.
+ */
+ FLASH_RDP_LEVEL_2, /**< Same as Level 1, but is permanent
+ * and can never be disabled.
+ */
+};
+
+bool is_flash_rdp_enabled(void);
+
+#endif /* __CROS_EC_STM32_FLASH_F_H */