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Diffstat (limited to 'chip/stm32/flash-regs.h')
-rw-r--r-- | chip/stm32/flash-regs.h | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/chip/stm32/flash-regs.h b/chip/stm32/flash-regs.h deleted file mode 100644 index b0a46667a1..0000000000 --- a/chip/stm32/flash-regs.h +++ /dev/null @@ -1,109 +0,0 @@ -/* Copyright 2021 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_REGS_H -#define __CROS_EC_STM32_FLASH_REGS_H - -#include <stdbool.h> - -/** - * Unlock the flash control register using the unlock sequence. - * - * If the flash control register has been disabled since the last reset when - * this function is called, a bus fault will be generated. - * - * See "3.5.1 Unlocking the Flash control register" in RM0402. - * See "4.9.2 FLASH key register for bank 1" in RM0433. - */ -void unlock_flash_control_register(void); - -/** - * Unlock the flash option bytes register using the unlock sequence. - * - * If the flash option bytes register has been disabled since the last reset - * when this function is called, a bus fault will be generated. - * - * See "3.6.2 Programming user option bytes" in RM0402. - * See "4.9.3 FLASH option key register" in RM0433. - */ -void unlock_flash_option_bytes(void); - -/** - * Lock the flash control register. - * - * If the flash control register has been disabled since the last reset when - * this function is called, a bus fault will be generated. - * - * See "3.5.1 Unlocking the Flash control register" in RM0402. - * See "4.9.4 Flash control register for bank 1" in RM0433. - */ -void lock_flash_control_register(void); - -/** - * Lock the flash option bytes register. - * - * If the flash option bytes register has been disabled since the last reset - * when this function is called, a bus fault will be generated. - * - * See "3.6.2 Programming user option bytes" in RM0402. - * See "4.9.7 FLASH option control register" in RM0433. - */ -void lock_flash_option_bytes(void); - -/** - * Disable the flash option bytes register. - * - * This function expects that bus faults have not already been ignored when - * called. - * - * Once this function is called any attempt at accessing the flash option - * bytes register will generate a bus fault until the next reset. - * - * See "3.6.2 Programming user option bytes" in RM0402. - * See "4.9.7 FLASH option control register" in RM0433. - */ -void disable_flash_option_bytes(void); - -/** - * Disable the flash control register. - * - * This function expects that bus faults have not already been ignored when - * called. - * - * Once this function is called any attempt at accessing the flash control - * register will generate a bus fault until the next reset. - * - * See "3.5.1 Unlocking the Flash control register" in RM0402. - * See "4.9.4 Flash control register for bank 1" in RM0433. - */ -void disable_flash_control_register(void); - -/** - * Check if the flash option bytes are locked. - * - * If the flash option bytes register has been disabled since the last reset - * when this function is called, a bus fault will be generated. - - * See "3.6.2 Programming user option bytes" in RM0402. - * See "4.9.7 FLASH option control register" in RM0433. - * - * @return true if option bytes are locked, false otherwise - */ -bool flash_option_bytes_locked(void); - -/** - * Check if the flash control register is locked. - * - * If the flash control register has been disabled since the last reset - * when this function is called, a bus fault will be generated. - * - * See "3.5.1 Unlocking the Flash control register" in RM0402. - * See "4.9.4 Flash control register for bank 1" in RM0433. - * - * @return true if register is locked, false otherwise - */ -bool flash_control_register_locked(void); - -#endif /* __CROS_EC_STM32_FLASH_REGS_H */ |