163 lines
6.5 KiB
C
163 lines
6.5 KiB
C
//*****************************************************************************
|
|
//
|
|
// mpu.h - Defines and Macros for the memory protection unit.
|
|
//
|
|
// Copyright (c) 2005-2017 Texas Instruments Incorporated. All rights reserved.
|
|
// Software License Agreement
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
//
|
|
// Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// 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.
|
|
//
|
|
// Neither the name of Texas Instruments Incorporated 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 __DRIVERLIB_MPU_H__
|
|
#define __DRIVERLIB_MPU_H__
|
|
|
|
#include <stdint.h>
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// If building with a C++ compiler, make all of the definitions in this header
|
|
// have a C binding.
|
|
//
|
|
//*****************************************************************************
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Flags that can be passed to MPUEnable.
|
|
//
|
|
//*****************************************************************************
|
|
#define MPU_CONFIG_PRIV_DEFAULT 4
|
|
#define MPU_CONFIG_HARDFLT_NMI 2
|
|
#define MPU_CONFIG_NONE 0
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Flags for the region size to be passed to MPURegionSet.
|
|
//
|
|
//*****************************************************************************
|
|
#define MPU_RGN_SIZE_32B (4 << 1)
|
|
#define MPU_RGN_SIZE_64B (5 << 1)
|
|
#define MPU_RGN_SIZE_128B (6 << 1)
|
|
#define MPU_RGN_SIZE_256B (7 << 1)
|
|
#define MPU_RGN_SIZE_512B (8 << 1)
|
|
|
|
#define MPU_RGN_SIZE_1K (9 << 1)
|
|
#define MPU_RGN_SIZE_2K (10 << 1)
|
|
#define MPU_RGN_SIZE_4K (11 << 1)
|
|
#define MPU_RGN_SIZE_8K (12 << 1)
|
|
#define MPU_RGN_SIZE_16K (13 << 1)
|
|
#define MPU_RGN_SIZE_32K (14 << 1)
|
|
#define MPU_RGN_SIZE_64K (15 << 1)
|
|
#define MPU_RGN_SIZE_128K (16 << 1)
|
|
#define MPU_RGN_SIZE_256K (17 << 1)
|
|
#define MPU_RGN_SIZE_512K (18 << 1)
|
|
|
|
#define MPU_RGN_SIZE_1M (19 << 1)
|
|
#define MPU_RGN_SIZE_2M (20 << 1)
|
|
#define MPU_RGN_SIZE_4M (21 << 1)
|
|
#define MPU_RGN_SIZE_8M (22 << 1)
|
|
#define MPU_RGN_SIZE_16M (23 << 1)
|
|
#define MPU_RGN_SIZE_32M (24 << 1)
|
|
#define MPU_RGN_SIZE_64M (25 << 1)
|
|
#define MPU_RGN_SIZE_128M (26 << 1)
|
|
#define MPU_RGN_SIZE_256M (27 << 1)
|
|
#define MPU_RGN_SIZE_512M (28 << 1)
|
|
|
|
#define MPU_RGN_SIZE_1G (29 << 1)
|
|
#define MPU_RGN_SIZE_2G (30 << 1)
|
|
#define MPU_RGN_SIZE_4G (31 << 1)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Flags for the permissions to be passed to MPURegionSet.
|
|
//
|
|
//*****************************************************************************
|
|
#define MPU_RGN_PERM_EXEC 0x00000000
|
|
#define MPU_RGN_PERM_NOEXEC 0x10000000
|
|
#define MPU_RGN_PERM_PRV_NO_USR_NO 0x00000000
|
|
#define MPU_RGN_PERM_PRV_RW_USR_NO 0x01000000
|
|
#define MPU_RGN_PERM_PRV_RW_USR_RO 0x02000000
|
|
#define MPU_RGN_PERM_PRV_RW_USR_RW 0x03000000
|
|
#define MPU_RGN_PERM_PRV_RO_USR_NO 0x05000000
|
|
#define MPU_RGN_PERM_PRV_RO_USR_RO 0x06000000
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Flags for the sub-region to be passed to MPURegionSet.
|
|
//
|
|
//*****************************************************************************
|
|
#define MPU_SUB_RGN_DISABLE_0 0x00000100
|
|
#define MPU_SUB_RGN_DISABLE_1 0x00000200
|
|
#define MPU_SUB_RGN_DISABLE_2 0x00000400
|
|
#define MPU_SUB_RGN_DISABLE_3 0x00000800
|
|
#define MPU_SUB_RGN_DISABLE_4 0x00001000
|
|
#define MPU_SUB_RGN_DISABLE_5 0x00002000
|
|
#define MPU_SUB_RGN_DISABLE_6 0x00004000
|
|
#define MPU_SUB_RGN_DISABLE_7 0x00008000
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Flags to enable or disable a region, to be passed to MPURegionSet.
|
|
//
|
|
//*****************************************************************************
|
|
#define MPU_RGN_ENABLE 1
|
|
#define MPU_RGN_DISABLE 0
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// API Function prototypes
|
|
//
|
|
//*****************************************************************************
|
|
extern void MPUEnable(uint32_t ui32MPUConfig);
|
|
extern void MPUDisable(void);
|
|
extern uint32_t MPURegionCountGet(void);
|
|
extern void MPURegionEnable(uint32_t ui32Region);
|
|
extern void MPURegionDisable(uint32_t ui32Region);
|
|
extern void MPURegionSet(uint32_t ui32Region, uint32_t ui32Addr,
|
|
uint32_t ui32Flags);
|
|
extern void MPURegionGet(uint32_t ui32Region, uint32_t *pui32Addr,
|
|
uint32_t *pui32Flags);
|
|
extern void MPUIntRegister(void (*pfnHandler)(void));
|
|
extern void MPUIntUnregister(void);
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Mark the end of the C bindings section for C++ compilers.
|
|
//
|
|
//*****************************************************************************
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // __DRIVERLIB_MPU_H__
|