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TARGET_MAX32625PICO_NO_BOOT/mpu_armv8.h@169:a7c7b631e539, 2018-06-22 (annotated)
- Committer:
- Anna Bridge
- Date:
- Fri Jun 22 15:38:59 2018 +0100
- Revision:
- 169:a7c7b631e539
mbed library. Release version 162
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Anna Bridge |
169:a7c7b631e539 | 1 | /****************************************************************************** |
| Anna Bridge |
169:a7c7b631e539 | 2 | * @file mpu_armv8.h |
| Anna Bridge |
169:a7c7b631e539 | 3 | * @brief CMSIS MPU API for Armv8-M MPU |
| Anna Bridge |
169:a7c7b631e539 | 4 | * @version V5.0.4 |
| Anna Bridge |
169:a7c7b631e539 | 5 | * @date 10. January 2018 |
| Anna Bridge |
169:a7c7b631e539 | 6 | ******************************************************************************/ |
| Anna Bridge |
169:a7c7b631e539 | 7 | /* |
| Anna Bridge |
169:a7c7b631e539 | 8 | * Copyright (c) 2017-2018 Arm Limited. All rights reserved. |
| Anna Bridge |
169:a7c7b631e539 | 9 | * |
| Anna Bridge |
169:a7c7b631e539 | 10 | * SPDX-License-Identifier: Apache-2.0 |
| Anna Bridge |
169:a7c7b631e539 | 11 | * |
| Anna Bridge |
169:a7c7b631e539 | 12 | * Licensed under the Apache License, Version 2.0 (the License); you may |
| Anna Bridge |
169:a7c7b631e539 | 13 | * not use this file except in compliance with the License. |
| Anna Bridge |
169:a7c7b631e539 | 14 | * You may obtain a copy of the License at |
| Anna Bridge |
169:a7c7b631e539 | 15 | * |
| Anna Bridge |
169:a7c7b631e539 | 16 | * www.apache.org/licenses/LICENSE-2.0 |
| Anna Bridge |
169:a7c7b631e539 | 17 | * |
| Anna Bridge |
169:a7c7b631e539 | 18 | * Unless required by applicable law or agreed to in writing, software |
| Anna Bridge |
169:a7c7b631e539 | 19 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| Anna Bridge |
169:a7c7b631e539 | 20 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| Anna Bridge |
169:a7c7b631e539 | 21 | * See the License for the specific language governing permissions and |
| Anna Bridge |
169:a7c7b631e539 | 22 | * limitations under the License. |
| Anna Bridge |
169:a7c7b631e539 | 23 | */ |
| Anna Bridge |
169:a7c7b631e539 | 24 | |
| Anna Bridge |
169:a7c7b631e539 | 25 | #if defined ( __ICCARM__ ) |
| Anna Bridge |
169:a7c7b631e539 | 26 | #pragma system_include /* treat file as system include file for MISRA check */ |
| Anna Bridge |
169:a7c7b631e539 | 27 | #elif defined (__clang__) |
| Anna Bridge |
169:a7c7b631e539 | 28 | #pragma clang system_header /* treat file as system include file */ |
| Anna Bridge |
169:a7c7b631e539 | 29 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 30 | |
| Anna Bridge |
169:a7c7b631e539 | 31 | #ifndef ARM_MPU_ARMV8_H |
| Anna Bridge |
169:a7c7b631e539 | 32 | #define ARM_MPU_ARMV8_H |
| Anna Bridge |
169:a7c7b631e539 | 33 | |
| Anna Bridge |
169:a7c7b631e539 | 34 | /** \brief Attribute for device memory (outer only) */ |
| Anna Bridge |
169:a7c7b631e539 | 35 | #define ARM_MPU_ATTR_DEVICE ( 0U ) |
| Anna Bridge |
169:a7c7b631e539 | 36 | |
| Anna Bridge |
169:a7c7b631e539 | 37 | /** \brief Attribute for non-cacheable, normal memory */ |
| Anna Bridge |
169:a7c7b631e539 | 38 | #define ARM_MPU_ATTR_NON_CACHEABLE ( 4U ) |
| Anna Bridge |
169:a7c7b631e539 | 39 | |
| Anna Bridge |
169:a7c7b631e539 | 40 | /** \brief Attribute for normal memory (outer and inner) |
| Anna Bridge |
169:a7c7b631e539 | 41 | * \param NT Non-Transient: Set to 1 for non-transient data. |
| Anna Bridge |
169:a7c7b631e539 | 42 | * \param WB Write-Back: Set to 1 to use write-back update policy. |
| Anna Bridge |
169:a7c7b631e539 | 43 | * \param RA Read Allocation: Set to 1 to use cache allocation on read miss. |
| Anna Bridge |
169:a7c7b631e539 | 44 | * \param WA Write Allocation: Set to 1 to use cache allocation on write miss. |
| Anna Bridge |
169:a7c7b631e539 | 45 | */ |
| Anna Bridge |
169:a7c7b631e539 | 46 | #define ARM_MPU_ATTR_MEMORY_(NT, WB, RA, WA) \ |
| Anna Bridge |
169:a7c7b631e539 | 47 | (((NT & 1U) << 3U) | ((WB & 1U) << 2U) | ((RA & 1U) << 1U) | (WA & 1U)) |
| Anna Bridge |
169:a7c7b631e539 | 48 | |
| Anna Bridge |
169:a7c7b631e539 | 49 | /** \brief Device memory type non Gathering, non Re-ordering, non Early Write Acknowledgement */ |
| Anna Bridge |
169:a7c7b631e539 | 50 | #define ARM_MPU_ATTR_DEVICE_nGnRnE (0U) |
| Anna Bridge |
169:a7c7b631e539 | 51 | |
| Anna Bridge |
169:a7c7b631e539 | 52 | /** \brief Device memory type non Gathering, non Re-ordering, Early Write Acknowledgement */ |
| Anna Bridge |
169:a7c7b631e539 | 53 | #define ARM_MPU_ATTR_DEVICE_nGnRE (1U) |
| Anna Bridge |
169:a7c7b631e539 | 54 | |
| Anna Bridge |
169:a7c7b631e539 | 55 | /** \brief Device memory type non Gathering, Re-ordering, Early Write Acknowledgement */ |
| Anna Bridge |
169:a7c7b631e539 | 56 | #define ARM_MPU_ATTR_DEVICE_nGRE (2U) |
| Anna Bridge |
169:a7c7b631e539 | 57 | |
| Anna Bridge |
169:a7c7b631e539 | 58 | /** \brief Device memory type Gathering, Re-ordering, Early Write Acknowledgement */ |
| Anna Bridge |
169:a7c7b631e539 | 59 | #define ARM_MPU_ATTR_DEVICE_GRE (3U) |
| Anna Bridge |
169:a7c7b631e539 | 60 | |
| Anna Bridge |
169:a7c7b631e539 | 61 | /** \brief Memory Attribute |
| Anna Bridge |
169:a7c7b631e539 | 62 | * \param O Outer memory attributes |
| Anna Bridge |
169:a7c7b631e539 | 63 | * \param I O == ARM_MPU_ATTR_DEVICE: Device memory attributes, else: Inner memory attributes |
| Anna Bridge |
169:a7c7b631e539 | 64 | */ |
| Anna Bridge |
169:a7c7b631e539 | 65 | #define ARM_MPU_ATTR(O, I) (((O & 0xFU) << 4U) | (((O & 0xFU) != 0U) ? (I & 0xFU) : ((I & 0x3U) << 2U))) |
| Anna Bridge |
169:a7c7b631e539 | 66 | |
| Anna Bridge |
169:a7c7b631e539 | 67 | /** \brief Normal memory non-shareable */ |
| Anna Bridge |
169:a7c7b631e539 | 68 | #define ARM_MPU_SH_NON (0U) |
| Anna Bridge |
169:a7c7b631e539 | 69 | |
| Anna Bridge |
169:a7c7b631e539 | 70 | /** \brief Normal memory outer shareable */ |
| Anna Bridge |
169:a7c7b631e539 | 71 | #define ARM_MPU_SH_OUTER (2U) |
| Anna Bridge |
169:a7c7b631e539 | 72 | |
| Anna Bridge |
169:a7c7b631e539 | 73 | /** \brief Normal memory inner shareable */ |
| Anna Bridge |
169:a7c7b631e539 | 74 | #define ARM_MPU_SH_INNER (3U) |
| Anna Bridge |
169:a7c7b631e539 | 75 | |
| Anna Bridge |
169:a7c7b631e539 | 76 | /** \brief Memory access permissions |
| Anna Bridge |
169:a7c7b631e539 | 77 | * \param RO Read-Only: Set to 1 for read-only memory. |
| Anna Bridge |
169:a7c7b631e539 | 78 | * \param NP Non-Privileged: Set to 1 for non-privileged memory. |
| Anna Bridge |
169:a7c7b631e539 | 79 | */ |
| Anna Bridge |
169:a7c7b631e539 | 80 | #define ARM_MPU_AP_(RO, NP) (((RO & 1U) << 1U) | (NP & 1U)) |
| Anna Bridge |
169:a7c7b631e539 | 81 | |
| Anna Bridge |
169:a7c7b631e539 | 82 | /** \brief Region Base Address Register value |
| Anna Bridge |
169:a7c7b631e539 | 83 | * \param BASE The base address bits [31:5] of a memory region. The value is zero extended. Effective address gets 32 byte aligned. |
| Anna Bridge |
169:a7c7b631e539 | 84 | * \param SH Defines the Shareability domain for this memory region. |
| Anna Bridge |
169:a7c7b631e539 | 85 | * \param RO Read-Only: Set to 1 for a read-only memory region. |
| Anna Bridge |
169:a7c7b631e539 | 86 | * \param NP Non-Privileged: Set to 1 for a non-privileged memory region. |
| Anna Bridge |
169:a7c7b631e539 | 87 | * \oaram XN eXecute Never: Set to 1 for a non-executable memory region. |
| Anna Bridge |
169:a7c7b631e539 | 88 | */ |
| Anna Bridge |
169:a7c7b631e539 | 89 | #define ARM_MPU_RBAR(BASE, SH, RO, NP, XN) \ |
| Anna Bridge |
169:a7c7b631e539 | 90 | ((BASE & MPU_RBAR_BASE_Pos) | \ |
| Anna Bridge |
169:a7c7b631e539 | 91 | ((SH << MPU_RBAR_SH_Pos) & MPU_RBAR_SH_Msk) | \ |
| Anna Bridge |
169:a7c7b631e539 | 92 | ((ARM_MPU_AP_(RO, NP) << MPU_RBAR_AP_Pos) & MPU_RBAR_AP_Msk) | \ |
| Anna Bridge |
169:a7c7b631e539 | 93 | ((XN << MPU_RBAR_XN_Pos) & MPU_RBAR_XN_Msk)) |
| Anna Bridge |
169:a7c7b631e539 | 94 | |
| Anna Bridge |
169:a7c7b631e539 | 95 | /** \brief Region Limit Address Register value |
| Anna Bridge |
169:a7c7b631e539 | 96 | * \param LIMIT The limit address bits [31:5] for this memory region. The value is one extended. |
| Anna Bridge |
169:a7c7b631e539 | 97 | * \param IDX The attribute index to be associated with this memory region. |
| Anna Bridge |
169:a7c7b631e539 | 98 | */ |
| Anna Bridge |
169:a7c7b631e539 | 99 | #define ARM_MPU_RLAR(LIMIT, IDX) \ |
| Anna Bridge |
169:a7c7b631e539 | 100 | ((LIMIT & MPU_RLAR_LIMIT_Msk) | \ |
| Anna Bridge |
169:a7c7b631e539 | 101 | ((IDX << MPU_RLAR_AttrIndx_Pos) & MPU_RLAR_AttrIndx_Msk) | \ |
| Anna Bridge |
169:a7c7b631e539 | 102 | (MPU_RLAR_EN_Msk)) |
| Anna Bridge |
169:a7c7b631e539 | 103 | |
| Anna Bridge |
169:a7c7b631e539 | 104 | /** |
| Anna Bridge |
169:a7c7b631e539 | 105 | * Struct for a single MPU Region |
| Anna Bridge |
169:a7c7b631e539 | 106 | */ |
| Anna Bridge |
169:a7c7b631e539 | 107 | typedef struct { |
| Anna Bridge |
169:a7c7b631e539 | 108 | uint32_t RBAR; /*!< Region Base Address Register value */ |
| Anna Bridge |
169:a7c7b631e539 | 109 | uint32_t RLAR; /*!< Region Limit Address Register value */ |
| Anna Bridge |
169:a7c7b631e539 | 110 | } ARM_MPU_Region_t; |
| Anna Bridge |
169:a7c7b631e539 | 111 | |
| Anna Bridge |
169:a7c7b631e539 | 112 | /** Enable the MPU. |
| Anna Bridge |
169:a7c7b631e539 | 113 | * \param MPU_Control Default access permissions for unconfigured regions. |
| Anna Bridge |
169:a7c7b631e539 | 114 | */ |
| Anna Bridge |
169:a7c7b631e539 | 115 | __STATIC_INLINE void ARM_MPU_Enable(uint32_t MPU_Control) |
| Anna Bridge |
169:a7c7b631e539 | 116 | { |
| Anna Bridge |
169:a7c7b631e539 | 117 | __DSB(); |
| Anna Bridge |
169:a7c7b631e539 | 118 | __ISB(); |
| Anna Bridge |
169:a7c7b631e539 | 119 | MPU->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 120 | #ifdef SCB_SHCSR_MEMFAULTENA_Msk |
| Anna Bridge |
169:a7c7b631e539 | 121 | SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 122 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 123 | } |
| Anna Bridge |
169:a7c7b631e539 | 124 | |
| Anna Bridge |
169:a7c7b631e539 | 125 | /** Disable the MPU. |
| Anna Bridge |
169:a7c7b631e539 | 126 | */ |
| Anna Bridge |
169:a7c7b631e539 | 127 | __STATIC_INLINE void ARM_MPU_Disable(void) |
| Anna Bridge |
169:a7c7b631e539 | 128 | { |
| Anna Bridge |
169:a7c7b631e539 | 129 | __DSB(); |
| Anna Bridge |
169:a7c7b631e539 | 130 | __ISB(); |
| Anna Bridge |
169:a7c7b631e539 | 131 | #ifdef SCB_SHCSR_MEMFAULTENA_Msk |
| Anna Bridge |
169:a7c7b631e539 | 132 | SCB->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 133 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 134 | MPU->CTRL &= ~MPU_CTRL_ENABLE_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 135 | } |
| Anna Bridge |
169:a7c7b631e539 | 136 | |
| Anna Bridge |
169:a7c7b631e539 | 137 | #ifdef MPU_NS |
| Anna Bridge |
169:a7c7b631e539 | 138 | /** Enable the Non-secure MPU. |
| Anna Bridge |
169:a7c7b631e539 | 139 | * \param MPU_Control Default access permissions for unconfigured regions. |
| Anna Bridge |
169:a7c7b631e539 | 140 | */ |
| Anna Bridge |
169:a7c7b631e539 | 141 | __STATIC_INLINE void ARM_MPU_Enable_NS(uint32_t MPU_Control) |
| Anna Bridge |
169:a7c7b631e539 | 142 | { |
| Anna Bridge |
169:a7c7b631e539 | 143 | __DSB(); |
| Anna Bridge |
169:a7c7b631e539 | 144 | __ISB(); |
| Anna Bridge |
169:a7c7b631e539 | 145 | MPU_NS->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 146 | #ifdef SCB_SHCSR_MEMFAULTENA_Msk |
| Anna Bridge |
169:a7c7b631e539 | 147 | SCB_NS->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 148 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 149 | } |
| Anna Bridge |
169:a7c7b631e539 | 150 | |
| Anna Bridge |
169:a7c7b631e539 | 151 | /** Disable the Non-secure MPU. |
| Anna Bridge |
169:a7c7b631e539 | 152 | */ |
| Anna Bridge |
169:a7c7b631e539 | 153 | __STATIC_INLINE void ARM_MPU_Disable_NS(void) |
| Anna Bridge |
169:a7c7b631e539 | 154 | { |
| Anna Bridge |
169:a7c7b631e539 | 155 | __DSB(); |
| Anna Bridge |
169:a7c7b631e539 | 156 | __ISB(); |
| Anna Bridge |
169:a7c7b631e539 | 157 | #ifdef SCB_SHCSR_MEMFAULTENA_Msk |
| Anna Bridge |
169:a7c7b631e539 | 158 | SCB_NS->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 159 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 160 | MPU_NS->CTRL &= ~MPU_CTRL_ENABLE_Msk; |
| Anna Bridge |
169:a7c7b631e539 | 161 | } |
| Anna Bridge |
169:a7c7b631e539 | 162 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 163 | |
| Anna Bridge |
169:a7c7b631e539 | 164 | /** Set the memory attribute encoding to the given MPU. |
| Anna Bridge |
169:a7c7b631e539 | 165 | * \param mpu Pointer to the MPU to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 166 | * \param idx The attribute index to be set [0-7] |
| Anna Bridge |
169:a7c7b631e539 | 167 | * \param attr The attribute value to be set. |
| Anna Bridge |
169:a7c7b631e539 | 168 | */ |
| Anna Bridge |
169:a7c7b631e539 | 169 | __STATIC_INLINE void ARM_MPU_SetMemAttrEx(MPU_Type* mpu, uint8_t idx, uint8_t attr) |
| Anna Bridge |
169:a7c7b631e539 | 170 | { |
| Anna Bridge |
169:a7c7b631e539 | 171 | const uint8_t reg = idx / 4U; |
| Anna Bridge |
169:a7c7b631e539 | 172 | const uint32_t pos = ((idx % 4U) * 8U); |
| Anna Bridge |
169:a7c7b631e539 | 173 | const uint32_t mask = 0xFFU << pos; |
| Anna Bridge |
169:a7c7b631e539 | 174 | |
| Anna Bridge |
169:a7c7b631e539 | 175 | if (reg >= (sizeof(mpu->MAIR) / sizeof(mpu->MAIR[0]))) { |
| Anna Bridge |
169:a7c7b631e539 | 176 | return; // invalid index |
| Anna Bridge |
169:a7c7b631e539 | 177 | } |
| Anna Bridge |
169:a7c7b631e539 | 178 | |
| Anna Bridge |
169:a7c7b631e539 | 179 | mpu->MAIR[reg] = ((mpu->MAIR[reg] & ~mask) | ((attr << pos) & mask)); |
| Anna Bridge |
169:a7c7b631e539 | 180 | } |
| Anna Bridge |
169:a7c7b631e539 | 181 | |
| Anna Bridge |
169:a7c7b631e539 | 182 | /** Set the memory attribute encoding. |
| Anna Bridge |
169:a7c7b631e539 | 183 | * \param idx The attribute index to be set [0-7] |
| Anna Bridge |
169:a7c7b631e539 | 184 | * \param attr The attribute value to be set. |
| Anna Bridge |
169:a7c7b631e539 | 185 | */ |
| Anna Bridge |
169:a7c7b631e539 | 186 | __STATIC_INLINE void ARM_MPU_SetMemAttr(uint8_t idx, uint8_t attr) |
| Anna Bridge |
169:a7c7b631e539 | 187 | { |
| Anna Bridge |
169:a7c7b631e539 | 188 | ARM_MPU_SetMemAttrEx(MPU, idx, attr); |
| Anna Bridge |
169:a7c7b631e539 | 189 | } |
| Anna Bridge |
169:a7c7b631e539 | 190 | |
| Anna Bridge |
169:a7c7b631e539 | 191 | #ifdef MPU_NS |
| Anna Bridge |
169:a7c7b631e539 | 192 | /** Set the memory attribute encoding to the Non-secure MPU. |
| Anna Bridge |
169:a7c7b631e539 | 193 | * \param idx The attribute index to be set [0-7] |
| Anna Bridge |
169:a7c7b631e539 | 194 | * \param attr The attribute value to be set. |
| Anna Bridge |
169:a7c7b631e539 | 195 | */ |
| Anna Bridge |
169:a7c7b631e539 | 196 | __STATIC_INLINE void ARM_MPU_SetMemAttr_NS(uint8_t idx, uint8_t attr) |
| Anna Bridge |
169:a7c7b631e539 | 197 | { |
| Anna Bridge |
169:a7c7b631e539 | 198 | ARM_MPU_SetMemAttrEx(MPU_NS, idx, attr); |
| Anna Bridge |
169:a7c7b631e539 | 199 | } |
| Anna Bridge |
169:a7c7b631e539 | 200 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 201 | |
| Anna Bridge |
169:a7c7b631e539 | 202 | /** Clear and disable the given MPU region of the given MPU. |
| Anna Bridge |
169:a7c7b631e539 | 203 | * \param mpu Pointer to MPU to be used. |
| Anna Bridge |
169:a7c7b631e539 | 204 | * \param rnr Region number to be cleared. |
| Anna Bridge |
169:a7c7b631e539 | 205 | */ |
| Anna Bridge |
169:a7c7b631e539 | 206 | __STATIC_INLINE void ARM_MPU_ClrRegionEx(MPU_Type* mpu, uint32_t rnr) |
| Anna Bridge |
169:a7c7b631e539 | 207 | { |
| Anna Bridge |
169:a7c7b631e539 | 208 | mpu->RNR = rnr; |
| Anna Bridge |
169:a7c7b631e539 | 209 | mpu->RLAR = 0U; |
| Anna Bridge |
169:a7c7b631e539 | 210 | } |
| Anna Bridge |
169:a7c7b631e539 | 211 | |
| Anna Bridge |
169:a7c7b631e539 | 212 | /** Clear and disable the given MPU region. |
| Anna Bridge |
169:a7c7b631e539 | 213 | * \param rnr Region number to be cleared. |
| Anna Bridge |
169:a7c7b631e539 | 214 | */ |
| Anna Bridge |
169:a7c7b631e539 | 215 | __STATIC_INLINE void ARM_MPU_ClrRegion(uint32_t rnr) |
| Anna Bridge |
169:a7c7b631e539 | 216 | { |
| Anna Bridge |
169:a7c7b631e539 | 217 | ARM_MPU_ClrRegionEx(MPU, rnr); |
| Anna Bridge |
169:a7c7b631e539 | 218 | } |
| Anna Bridge |
169:a7c7b631e539 | 219 | |
| Anna Bridge |
169:a7c7b631e539 | 220 | #ifdef MPU_NS |
| Anna Bridge |
169:a7c7b631e539 | 221 | /** Clear and disable the given Non-secure MPU region. |
| Anna Bridge |
169:a7c7b631e539 | 222 | * \param rnr Region number to be cleared. |
| Anna Bridge |
169:a7c7b631e539 | 223 | */ |
| Anna Bridge |
169:a7c7b631e539 | 224 | __STATIC_INLINE void ARM_MPU_ClrRegion_NS(uint32_t rnr) |
| Anna Bridge |
169:a7c7b631e539 | 225 | { |
| Anna Bridge |
169:a7c7b631e539 | 226 | ARM_MPU_ClrRegionEx(MPU_NS, rnr); |
| Anna Bridge |
169:a7c7b631e539 | 227 | } |
| Anna Bridge |
169:a7c7b631e539 | 228 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 229 | |
| Anna Bridge |
169:a7c7b631e539 | 230 | /** Configure the given MPU region of the given MPU. |
| Anna Bridge |
169:a7c7b631e539 | 231 | * \param mpu Pointer to MPU to be used. |
| Anna Bridge |
169:a7c7b631e539 | 232 | * \param rnr Region number to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 233 | * \param rbar Value for RBAR register. |
| Anna Bridge |
169:a7c7b631e539 | 234 | * \param rlar Value for RLAR register. |
| Anna Bridge |
169:a7c7b631e539 | 235 | */ |
| Anna Bridge |
169:a7c7b631e539 | 236 | __STATIC_INLINE void ARM_MPU_SetRegionEx(MPU_Type* mpu, uint32_t rnr, uint32_t rbar, uint32_t rlar) |
| Anna Bridge |
169:a7c7b631e539 | 237 | { |
| Anna Bridge |
169:a7c7b631e539 | 238 | mpu->RNR = rnr; |
| Anna Bridge |
169:a7c7b631e539 | 239 | mpu->RBAR = rbar; |
| Anna Bridge |
169:a7c7b631e539 | 240 | mpu->RLAR = rlar; |
| Anna Bridge |
169:a7c7b631e539 | 241 | } |
| Anna Bridge |
169:a7c7b631e539 | 242 | |
| Anna Bridge |
169:a7c7b631e539 | 243 | /** Configure the given MPU region. |
| Anna Bridge |
169:a7c7b631e539 | 244 | * \param rnr Region number to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 245 | * \param rbar Value for RBAR register. |
| Anna Bridge |
169:a7c7b631e539 | 246 | * \param rlar Value for RLAR register. |
| Anna Bridge |
169:a7c7b631e539 | 247 | */ |
| Anna Bridge |
169:a7c7b631e539 | 248 | __STATIC_INLINE void ARM_MPU_SetRegion(uint32_t rnr, uint32_t rbar, uint32_t rlar) |
| Anna Bridge |
169:a7c7b631e539 | 249 | { |
| Anna Bridge |
169:a7c7b631e539 | 250 | ARM_MPU_SetRegionEx(MPU, rnr, rbar, rlar); |
| Anna Bridge |
169:a7c7b631e539 | 251 | } |
| Anna Bridge |
169:a7c7b631e539 | 252 | |
| Anna Bridge |
169:a7c7b631e539 | 253 | #ifdef MPU_NS |
| Anna Bridge |
169:a7c7b631e539 | 254 | /** Configure the given Non-secure MPU region. |
| Anna Bridge |
169:a7c7b631e539 | 255 | * \param rnr Region number to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 256 | * \param rbar Value for RBAR register. |
| Anna Bridge |
169:a7c7b631e539 | 257 | * \param rlar Value for RLAR register. |
| Anna Bridge |
169:a7c7b631e539 | 258 | */ |
| Anna Bridge |
169:a7c7b631e539 | 259 | __STATIC_INLINE void ARM_MPU_SetRegion_NS(uint32_t rnr, uint32_t rbar, uint32_t rlar) |
| Anna Bridge |
169:a7c7b631e539 | 260 | { |
| Anna Bridge |
169:a7c7b631e539 | 261 | ARM_MPU_SetRegionEx(MPU_NS, rnr, rbar, rlar); |
| Anna Bridge |
169:a7c7b631e539 | 262 | } |
| Anna Bridge |
169:a7c7b631e539 | 263 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 264 | |
| Anna Bridge |
169:a7c7b631e539 | 265 | /** Memcopy with strictly ordered memory access, e.g. for register targets. |
| Anna Bridge |
169:a7c7b631e539 | 266 | * \param dst Destination data is copied to. |
| Anna Bridge |
169:a7c7b631e539 | 267 | * \param src Source data is copied from. |
| Anna Bridge |
169:a7c7b631e539 | 268 | * \param len Amount of data words to be copied. |
| Anna Bridge |
169:a7c7b631e539 | 269 | */ |
| Anna Bridge |
169:a7c7b631e539 | 270 | __STATIC_INLINE void orderedCpy(volatile uint32_t* dst, const uint32_t* __RESTRICT src, uint32_t len) |
| Anna Bridge |
169:a7c7b631e539 | 271 | { |
| Anna Bridge |
169:a7c7b631e539 | 272 | uint32_t i; |
| Anna Bridge |
169:a7c7b631e539 | 273 | for (i = 0U; i < len; ++i) |
| Anna Bridge |
169:a7c7b631e539 | 274 | { |
| Anna Bridge |
169:a7c7b631e539 | 275 | dst[i] = src[i]; |
| Anna Bridge |
169:a7c7b631e539 | 276 | } |
| Anna Bridge |
169:a7c7b631e539 | 277 | } |
| Anna Bridge |
169:a7c7b631e539 | 278 | |
| Anna Bridge |
169:a7c7b631e539 | 279 | /** Load the given number of MPU regions from a table to the given MPU. |
| Anna Bridge |
169:a7c7b631e539 | 280 | * \param mpu Pointer to the MPU registers to be used. |
| Anna Bridge |
169:a7c7b631e539 | 281 | * \param rnr First region number to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 282 | * \param table Pointer to the MPU configuration table. |
| Anna Bridge |
169:a7c7b631e539 | 283 | * \param cnt Amount of regions to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 284 | */ |
| Anna Bridge |
169:a7c7b631e539 | 285 | __STATIC_INLINE void ARM_MPU_LoadEx(MPU_Type* mpu, uint32_t rnr, ARM_MPU_Region_t const* table, uint32_t cnt) |
| Anna Bridge |
169:a7c7b631e539 | 286 | { |
| Anna Bridge |
169:a7c7b631e539 | 287 | const uint32_t rowWordSize = sizeof(ARM_MPU_Region_t)/4U; |
| Anna Bridge |
169:a7c7b631e539 | 288 | if (cnt == 1U) { |
| Anna Bridge |
169:a7c7b631e539 | 289 | mpu->RNR = rnr; |
| Anna Bridge |
169:a7c7b631e539 | 290 | orderedCpy(&(mpu->RBAR), &(table->RBAR), rowWordSize); |
| Anna Bridge |
169:a7c7b631e539 | 291 | } else { |
| Anna Bridge |
169:a7c7b631e539 | 292 | uint32_t rnrBase = rnr & ~(MPU_TYPE_RALIASES-1U); |
| Anna Bridge |
169:a7c7b631e539 | 293 | uint32_t rnrOffset = rnr % MPU_TYPE_RALIASES; |
| Anna Bridge |
169:a7c7b631e539 | 294 | |
| Anna Bridge |
169:a7c7b631e539 | 295 | mpu->RNR = rnrBase; |
| Anna Bridge |
169:a7c7b631e539 | 296 | while ((rnrOffset + cnt) > MPU_TYPE_RALIASES) { |
| Anna Bridge |
169:a7c7b631e539 | 297 | uint32_t c = MPU_TYPE_RALIASES - rnrOffset; |
| Anna Bridge |
169:a7c7b631e539 | 298 | orderedCpy(&(mpu->RBAR)+(rnrOffset*2U), &(table->RBAR), c*rowWordSize); |
| Anna Bridge |
169:a7c7b631e539 | 299 | table += c; |
| Anna Bridge |
169:a7c7b631e539 | 300 | cnt -= c; |
| Anna Bridge |
169:a7c7b631e539 | 301 | rnrOffset = 0U; |
| Anna Bridge |
169:a7c7b631e539 | 302 | rnrBase += MPU_TYPE_RALIASES; |
| Anna Bridge |
169:a7c7b631e539 | 303 | mpu->RNR = rnrBase; |
| Anna Bridge |
169:a7c7b631e539 | 304 | } |
| Anna Bridge |
169:a7c7b631e539 | 305 | |
| Anna Bridge |
169:a7c7b631e539 | 306 | orderedCpy(&(mpu->RBAR)+(rnrOffset*2U), &(table->RBAR), cnt*rowWordSize); |
| Anna Bridge |
169:a7c7b631e539 | 307 | } |
| Anna Bridge |
169:a7c7b631e539 | 308 | } |
| Anna Bridge |
169:a7c7b631e539 | 309 | |
| Anna Bridge |
169:a7c7b631e539 | 310 | /** Load the given number of MPU regions from a table. |
| Anna Bridge |
169:a7c7b631e539 | 311 | * \param rnr First region number to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 312 | * \param table Pointer to the MPU configuration table. |
| Anna Bridge |
169:a7c7b631e539 | 313 | * \param cnt Amount of regions to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 314 | */ |
| Anna Bridge |
169:a7c7b631e539 | 315 | __STATIC_INLINE void ARM_MPU_Load(uint32_t rnr, ARM_MPU_Region_t const* table, uint32_t cnt) |
| Anna Bridge |
169:a7c7b631e539 | 316 | { |
| Anna Bridge |
169:a7c7b631e539 | 317 | ARM_MPU_LoadEx(MPU, rnr, table, cnt); |
| Anna Bridge |
169:a7c7b631e539 | 318 | } |
| Anna Bridge |
169:a7c7b631e539 | 319 | |
| Anna Bridge |
169:a7c7b631e539 | 320 | #ifdef MPU_NS |
| Anna Bridge |
169:a7c7b631e539 | 321 | /** Load the given number of MPU regions from a table to the Non-secure MPU. |
| Anna Bridge |
169:a7c7b631e539 | 322 | * \param rnr First region number to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 323 | * \param table Pointer to the MPU configuration table. |
| Anna Bridge |
169:a7c7b631e539 | 324 | * \param cnt Amount of regions to be configured. |
| Anna Bridge |
169:a7c7b631e539 | 325 | */ |
| Anna Bridge |
169:a7c7b631e539 | 326 | __STATIC_INLINE void ARM_MPU_Load_NS(uint32_t rnr, ARM_MPU_Region_t const* table, uint32_t cnt) |
| Anna Bridge |
169:a7c7b631e539 | 327 | { |
| Anna Bridge |
169:a7c7b631e539 | 328 | ARM_MPU_LoadEx(MPU_NS, rnr, table, cnt); |
| Anna Bridge |
169:a7c7b631e539 | 329 | } |
| Anna Bridge |
169:a7c7b631e539 | 330 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 331 | |
| Anna Bridge |
169:a7c7b631e539 | 332 | #endif |
| Anna Bridge |
169:a7c7b631e539 | 333 |
