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/************************************************************************************
* arch/arm/src/stm32/stm32_flash.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_STM32_STM32_FLASH_H
#define __ARCH_ARM_SRC_STM32_STM32_FLASH_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#include "stm32_memorymap.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Register Offsets *****************************************************************/
#define STM32_FLASH_ACR_OFFSET 0x0000
#define STM32_FLASH_KEYR_OFFSET 0x0004
#define STM32_FLASH_OPTKEYR_OFFSET 0x0008
#define STM32_FLASH_SR_OFFSET 0x000c
#define STM32_FLASH_CR_OFFSET 0x0010
#define STM32_FLASH_AR_OFFSET 0x0014
#define STM32_FLASH_OBR_OFFSET 0x001c
#define STM32_FLASH_WRPR_OFFSET 0x0020
/* Register Addresses ***************************************************************/
#define STM32_FLASH_ACR (STM32_FLASHIF_BASE+STM32_FLASH_ACR_OFFSET)
#define STM32_FLASH_KEYR (STM32_FLASHIF_BASE+STM32_FLASH_KEYR_OFFSET)
#define STM32_FLASH_OPTKEYR (STM32_FLASHIF_BASE+STM32_FLASH_OPTKEYR_OFFSET)
#define STM32_FLASH_SR (STM32_FLASHIF_BASE+STM32_FLASH_SR_OFFSET)
#define STM32_FLASH_CR (STM32_FLASHIF_BASE+STM32_FLASH_CR_OFFSET)
#define STM32_FLASH_AR (STM32_FLASHIF_BASE+STM32_FLASH_AR_OFFSET)
#define STM32_FLASH_OBR (STM32_FLASHIF_BASE+STM32_FLASH_OBR_OFFSET)
#define STM32_FLASH_WRPR (STM32_FLASHIF_BASE+STM32_FLASH_WRPR_OFFSET)
/* Register Bitfield Definitions ****************************************************/
/* TODO: FLASH details from the STM32F10xxx Flash programming manual. */
/* Flash Access Control Register (ACR) */
#define ACR_LATENCY_SHIFT (0)
#define ACR_LATENCY_MASK (7 << ACR_LATENCY_SHIFT)
# define ACR_LATENCY_0 (0 << ACR_LATENCY_SHIFT) /* FLASH Zero Latency cycle */
# define ACR_LATENCY_1 (1 << ACR_LATENCY_SHIFT)) /* FLASH One Latency cycle */
# define ACR_LATENCY_2 (2 << ACR_LATENCY_SHIFT) /* FLASH Two Latency cycles */
#define ACR_HLFCYA (1 << 3) /* FLASH half cycle access */
#define ACR_PRTFBE (1 << 4) /* FLASH prefetch enable */
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Public Data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
#endif /* __ARCH_ARM_SRC_STM32_STM32_FLASH_H */
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