//***************************************************************************** // // 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 //***************************************************************************** // // 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__