contiki/cpu/cc2538/dev/flash.h
Benoît Thébaudeau efb4b858e2 cc2538: Define the flash memory organization
Define the flash memory page and word sizes. These definitions are
grouped with the flash lock bit page and CCA definitions, so flash-cca.h
is renamed to flash.h.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-11-19 01:18:33 +01:00

110 lines
4.3 KiB
C

/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
* All rights reserved.
*
* Copyright (c) 2013, ADVANSEE - http://www.advansee.com/
* Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* All rights reserved.
*
* 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 of the copyright holder 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 HOLDER 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.
*/
/**
* \addtogroup cc2538
* @{
*
* \defgroup cc2538-flash cc2538 flash memory
*
* Definitions for the cc2538 flash memory
* @{
*
* \file
* Header file for the flash memory definitions
*/
#ifndef FLASH_H_
#define FLASH_H_
#include "dev/cc2538-dev.h"
#include <stdint.h>
/*---------------------------------------------------------------------------*/
/** \name Flash memory organization
* @{
*/
#define FLASH_PAGE_SIZE 2048
#define FLASH_WORD_SIZE 4
/** @} */
/*---------------------------------------------------------------------------*/
/** \name Flash lock bit page and CCA location
* @{
*/
#define FLASH_CCA_ADDR (CC2538_DEV_FLASH_ADDR + CC2538_DEV_FLASH_SIZE - \
FLASH_CCA_SIZE) /**< Address */
#define FLASH_CCA_SIZE 0x0000002C /**< Size in bytes */
/** @} */
/*---------------------------------------------------------------------------*/
/** \name Bootloader backdoor configuration bit fields
* @{
*/
#define FLASH_CCA_BOOTLDR_CFG_DISABLE 0xEFFFFFFF /**< Disable backdoor function */
#define FLASH_CCA_BOOTLDR_CFG_ENABLE 0xF0FFFFFF /**< Enable backdoor function */
#define FLASH_CCA_BOOTLDR_CFG_ACTIVE_HIGH 0x08000000 /**< Selected pin on pad A active high */
#define FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_M 0x07000000 /**< Selected pin on pad A mask */
#define FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_S 24 /**< Selected pin on pad A shift */
/** @} */
/*---------------------------------------------------------------------------*/
/** \name Image valid definitions
* @{
*/
#define FLASH_CCA_IMAGE_VALID 0x00000000 /**< Indicates valid image in flash */
/** @} */
/*---------------------------------------------------------------------------*/
/** \name Lock page / debug definitions
* @{
*/
#define FLASH_CCA_LOCKED 0 /**< Page or debug locked if bit == 0 */
#define FLASH_CCA_LOCK_DEBUG_BYTE 31 /**< Lock byte containing the debug lock bit */
#define FLASH_CCA_LOCK_DEBUG_BIT 7 /**< Debug lock bit position in the corresponding lock byte */
/** @} */
/*---------------------------------------------------------------------------*/
/** \name Flash lock bit page and CCA layout
* @{
*/
typedef struct {
uint32_t bootldr_cfg; /**< Bootloader backdoor configuration (page bytes 2004 - 2007) */
uint32_t image_valid; /**< Image valid (page bytes 2008 - 2011) */
const void *app_entry_point; /**< Flash vector table address (page bytes 2012 - 2015) */
uint8_t lock[32]; /**< Page and debug lock bits (page bytes 2016 - 2047) */
} flash_cca_lock_page_t;
/** @} */
#endif /* FLASH_H_ */
/**
* @}
* @}
*/