WB32F10x Standard Peripherals Firmware Library

mpu_armv7.h
1 /******************************************************************************
2 * @file mpu_armv7.h
3 * @brief CMSIS MPU API for Armv7-M MPU
4 * @version V5.0.4
5 * @date 10. January 2018
6 ******************************************************************************/
7 /*
8 * Copyright (c) 2017-2018 Arm Limited. All rights reserved.
9 *
10 * SPDX-License-Identifier: Apache-2.0
11 *
12 * Licensed under the Apache License, Version 2.0 (the License); you may
13 * not use this file except in compliance with the License.
14 * You may obtain a copy of the License at
15 *
16 * www.apache.org/licenses/LICENSE-2.0
17 *
18 * Unless required by applicable law or agreed to in writing, software
19 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
20 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 * See the License for the specific language governing permissions and
22 * limitations under the License.
23 */
24
25 #if defined ( __ICCARM__ )
26 #pragma system_include /* treat file as system include file for MISRA check */
27 #elif defined (__clang__)
28 #pragma clang system_header /* treat file as system include file */
29 #endif
30
31 #ifndef ARM_MPU_ARMV7_H
32 #define ARM_MPU_ARMV7_H
33
34 #define ARM_MPU_REGION_SIZE_32B ((uint8_t)0x04U)
35 #define ARM_MPU_REGION_SIZE_64B ((uint8_t)0x05U)
36 #define ARM_MPU_REGION_SIZE_128B ((uint8_t)0x06U)
37 #define ARM_MPU_REGION_SIZE_256B ((uint8_t)0x07U)
38 #define ARM_MPU_REGION_SIZE_512B ((uint8_t)0x08U)
39 #define ARM_MPU_REGION_SIZE_1KB ((uint8_t)0x09U)
40 #define ARM_MPU_REGION_SIZE_2KB ((uint8_t)0x0AU)
41 #define ARM_MPU_REGION_SIZE_4KB ((uint8_t)0x0BU)
42 #define ARM_MPU_REGION_SIZE_8KB ((uint8_t)0x0CU)
43 #define ARM_MPU_REGION_SIZE_16KB ((uint8_t)0x0DU)
44 #define ARM_MPU_REGION_SIZE_32KB ((uint8_t)0x0EU)
45 #define ARM_MPU_REGION_SIZE_64KB ((uint8_t)0x0FU)
46 #define ARM_MPU_REGION_SIZE_128KB ((uint8_t)0x10U)
47 #define ARM_MPU_REGION_SIZE_256KB ((uint8_t)0x11U)
48 #define ARM_MPU_REGION_SIZE_512KB ((uint8_t)0x12U)
49 #define ARM_MPU_REGION_SIZE_1MB ((uint8_t)0x13U)
50 #define ARM_MPU_REGION_SIZE_2MB ((uint8_t)0x14U)
51 #define ARM_MPU_REGION_SIZE_4MB ((uint8_t)0x15U)
52 #define ARM_MPU_REGION_SIZE_8MB ((uint8_t)0x16U)
53 #define ARM_MPU_REGION_SIZE_16MB ((uint8_t)0x17U)
54 #define ARM_MPU_REGION_SIZE_32MB ((uint8_t)0x18U)
55 #define ARM_MPU_REGION_SIZE_64MB ((uint8_t)0x19U)
56 #define ARM_MPU_REGION_SIZE_128MB ((uint8_t)0x1AU)
57 #define ARM_MPU_REGION_SIZE_256MB ((uint8_t)0x1BU)
58 #define ARM_MPU_REGION_SIZE_512MB ((uint8_t)0x1CU)
59 #define ARM_MPU_REGION_SIZE_1GB ((uint8_t)0x1DU)
60 #define ARM_MPU_REGION_SIZE_2GB ((uint8_t)0x1EU)
61 #define ARM_MPU_REGION_SIZE_4GB ((uint8_t)0x1FU)
62
63 #define ARM_MPU_AP_NONE 0U
64 #define ARM_MPU_AP_PRIV 1U
65 #define ARM_MPU_AP_URO 2U
66 #define ARM_MPU_AP_FULL 3U
67 #define ARM_MPU_AP_PRO 5U
68 #define ARM_MPU_AP_RO 6U
69
70
75 #define ARM_MPU_RBAR(Region, BaseAddress) \
76 (((BaseAddress) & MPU_RBAR_ADDR_Msk) | \
77 ((Region) & MPU_RBAR_REGION_Msk) | \
78 (MPU_RBAR_VALID_Msk))
79
88 #define ARM_MPU_ACCESS_(TypeExtField, IsShareable, IsCacheable, IsBufferable) \
89 ((((TypeExtField ) << MPU_RASR_TEX_Pos) & MPU_RASR_TEX_Msk) | \
90 (((IsShareable ) << MPU_RASR_S_Pos) & MPU_RASR_S_Msk) | \
91 (((IsCacheable ) << MPU_RASR_C_Pos) & MPU_RASR_C_Msk) | \
92 (((IsBufferable ) << MPU_RASR_B_Pos) & MPU_RASR_B_Msk))
93
103 #define ARM_MPU_RASR_EX(DisableExec, AccessPermission, AccessAttributes, SubRegionDisable, Size) \
104 ((((DisableExec ) << MPU_RASR_XN_Pos) & MPU_RASR_XN_Msk) | \
105 (((AccessPermission) << MPU_RASR_AP_Pos) & MPU_RASR_AP_Msk) | \
106 (((AccessAttributes) ) & (MPU_RASR_TEX_Msk | MPU_RASR_S_Msk | MPU_RASR_C_Msk | MPU_RASR_B_Msk)))
107
120 #define ARM_MPU_RASR(DisableExec, AccessPermission, TypeExtField, IsShareable, IsCacheable, IsBufferable, SubRegionDisable, Size) \
121 ARM_MPU_RASR_EX(DisableExec, AccessPermission, ARM_MPU_ACCESS_(TypeExtField, IsShareable, IsCacheable, IsBufferable), SubRegionDisable, Size)
122
130 #define ARM_MPU_ACCESS_ORDERED ARM_MPU_ACCESS_(0U, 1U, 0U, 0U)
131
141 #define ARM_MPU_ACCESS_DEVICE(IsShareable) ((IsShareable) ? ARM_MPU_ACCESS_(0U, 1U, 0U, 1U) : ARM_MPU_ACCESS_(2U, 0U, 0U, 0U))
142
154 #define ARM_MPU_ACCESS_NORMAL(OuterCp, InnerCp, IsShareable) ARM_MPU_ACCESS_((4U | (OuterCp)), IsShareable, ((InnerCp) & 2U), ((InnerCp) & 1U))
155
159 #define ARM_MPU_CACHEP_NOCACHE 0U
160
164 #define ARM_MPU_CACHEP_WB_WRA 1U
165
169 #define ARM_MPU_CACHEP_WT_NWA 2U
170
174 #define ARM_MPU_CACHEP_WB_NWA 3U
175
176
180 typedef struct {
181 uint32_t RBAR;
182 uint32_t RASR;
183 } ARM_MPU_Region_t;
184
188 __STATIC_INLINE void ARM_MPU_Enable(uint32_t MPU_Control)
189 {
190 __DSB();
191 __ISB();
192 MPU->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk;
193 #ifdef SCB_SHCSR_MEMFAULTENA_Msk
194 SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
195 #endif
196 }
197
200 __STATIC_INLINE void ARM_MPU_Disable(void)
201 {
202 __DSB();
203 __ISB();
204 #ifdef SCB_SHCSR_MEMFAULTENA_Msk
205 SCB->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk;
206 #endif
207 MPU->CTRL &= ~MPU_CTRL_ENABLE_Msk;
208 }
209
213 __STATIC_INLINE void ARM_MPU_ClrRegion(uint32_t rnr)
214 {
215 MPU->RNR = rnr;
216 MPU->RASR = 0U;
217 }
218
223 __STATIC_INLINE void ARM_MPU_SetRegion(uint32_t rbar, uint32_t rasr)
224 {
225 MPU->RBAR = rbar;
226 MPU->RASR = rasr;
227 }
228
234 __STATIC_INLINE void ARM_MPU_SetRegionEx(uint32_t rnr, uint32_t rbar, uint32_t rasr)
235 {
236 MPU->RNR = rnr;
237 MPU->RBAR = rbar;
238 MPU->RASR = rasr;
239 }
240
246 __STATIC_INLINE void orderedCpy(volatile uint32_t* dst, const uint32_t* __RESTRICT src, uint32_t len)
247 {
248 uint32_t i;
249 for (i = 0U; i < len; ++i)
250 {
251 dst[i] = src[i];
252 }
253 }
254
259 __STATIC_INLINE void ARM_MPU_Load(ARM_MPU_Region_t const* table, uint32_t cnt)
260 {
261 const uint32_t rowWordSize = sizeof(ARM_MPU_Region_t)/4U;
262 while (cnt > MPU_TYPE_RALIASES) {
263 orderedCpy(&(MPU->RBAR), &(table->RBAR), MPU_TYPE_RALIASES*rowWordSize);
264 table += MPU_TYPE_RALIASES;
265 cnt -= MPU_TYPE_RALIASES;
266 }
267 orderedCpy(&(MPU->RBAR), &(table->RBAR), cnt*rowWordSize);
268 }
269
270 #endif
ARM_MPU_Region_t
Definition: mpu_armv7.h:180
ARM_MPU_Region_t::RASR
uint32_t RASR
The region attribute and size register value (RASR) MPU_RASR
Definition: mpu_armv7.h:182
ARM_MPU_Region_t::RBAR
uint32_t RBAR
The region base address register value (RBAR)
Definition: mpu_armv7.h:181
SCB_SHCSR_MEMFAULTENA_Msk
#define SCB_SHCSR_MEMFAULTENA_Msk
Definition: core_cm3.h:517
__DSB
__STATIC_FORCEINLINE void __DSB(void)
Data Synchronization Barrier
Definition: cmsis_gcc.h:877
SCB
#define SCB
Definition: core_cm3.h:1393
__ISB
__STATIC_FORCEINLINE void __ISB(void)
Instruction Synchronization Barrier
Definition: cmsis_gcc.h:866