1 files changed, 29 insertions, 16 deletions

diff --git a/Core/Include/mpu_armv8.h b/Core/Include/mpu_armv8.h
index 62571da..0041d4d 100644
--- a/Core/Include/mpu_armv8.h
+++ b/Core/Include/mpu_armv8.h
@@ -1,11 +1,11 @@
 /******************************************************************************
  * @file     mpu_armv8.h
- * @brief    CMSIS MPU API for Armv8-M MPU
- * @version  V5.0.4
- * @date     10. January 2018
+ * @brief    CMSIS MPU API for Armv8-M and Armv8.1-M MPU
+ * @version  V5.1.0
+ * @date     08. March 2019
  ******************************************************************************/
 /*
- * Copyright (c) 2017-2018 Arm Limited. All rights reserved.
+ * Copyright (c) 2017-2019 Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -101,6 +101,21 @@
   ((IDX << MPU_RLAR_AttrIndx_Pos) & MPU_RLAR_AttrIndx_Msk) | \
   (MPU_RLAR_EN_Msk))
 
+#if defined(MPU_RLAR_PXN_Pos)
+  
+/** \brief Region Limit Address Register with PXN value
+* \param LIMIT The limit address bits [31:5] for this memory region. The value is one extended.
+* \param PXN Privileged execute never. Defines whether code can be executed from this privileged region.
+* \param IDX The attribute index to be associated with this memory region.
+*/
+#define ARM_MPU_RLAR_PXN(LIMIT, PXN, IDX) \
+  ((LIMIT & MPU_RLAR_LIMIT_Msk) | \
+  ((PXN << MPU_RLAR_PXN_Pos) & MPU_RLAR_PXN_Msk) | \
+  ((IDX << MPU_RLAR_AttrIndx_Pos) & MPU_RLAR_AttrIndx_Msk) | \
+  (MPU_RLAR_EN_Msk))
+  
+#endif
+
 /**
 * Struct for a single MPU Region
 */
@@ -114,20 +129,19 @@ typedef struct {
 */
 __STATIC_INLINE void ARM_MPU_Enable(uint32_t MPU_Control)
 {
-  __DSB();
-  __ISB();
   MPU->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk;
 #ifdef SCB_SHCSR_MEMFAULTENA_Msk
   SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
 #endif
+  __DSB();
+  __ISB();
 }
 
 /** Disable the MPU.
 */
 __STATIC_INLINE void ARM_MPU_Disable(void)
 {
-  __DSB();
-  __ISB();
+  __DMB();
 #ifdef SCB_SHCSR_MEMFAULTENA_Msk
   SCB->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk;
 #endif
@@ -140,20 +154,19 @@ __STATIC_INLINE void ARM_MPU_Disable(void)
 */
 __STATIC_INLINE void ARM_MPU_Enable_NS(uint32_t MPU_Control)
 {
-  __DSB();
-  __ISB();
   MPU_NS->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk;
 #ifdef SCB_SHCSR_MEMFAULTENA_Msk
   SCB_NS->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
 #endif
+  __DSB();
+  __ISB();
 }
 
 /** Disable the Non-secure MPU.
 */
 __STATIC_INLINE void ARM_MPU_Disable_NS(void)
 {
-  __DSB();
-  __ISB();
+  __DMB();
 #ifdef SCB_SHCSR_MEMFAULTENA_Msk
   SCB_NS->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk;
 #endif
@@ -267,7 +280,7 @@ __STATIC_INLINE void ARM_MPU_SetRegion_NS(uint32_t rnr, uint32_t rbar, uint32_t
 * \param src Source data is copied from.
 * \param len Amount of data words to be copied.
 */
-__STATIC_INLINE void orderedCpy(volatile uint32_t* dst, const uint32_t* __RESTRICT src, uint32_t len)
+__STATIC_INLINE void ARM_MPU_OrderedMemcpy(volatile uint32_t* dst, const uint32_t* __RESTRICT src, uint32_t len)
 {
   uint32_t i;
   for (i = 0U; i < len; ++i) 
@@ -287,7 +300,7 @@ __STATIC_INLINE void ARM_MPU_LoadEx(MPU_Type* mpu, uint32_t rnr, ARM_MPU_Region_
   const uint32_t rowWordSize = sizeof(ARM_MPU_Region_t)/4U;
   if (cnt == 1U) {
     mpu->RNR = rnr;
-    orderedCpy(&(mpu->RBAR), &(table->RBAR), rowWordSize);
+    ARM_MPU_OrderedMemcpy(&(mpu->RBAR), &(table->RBAR), rowWordSize);
   } else {
     uint32_t rnrBase   = rnr & ~(MPU_TYPE_RALIASES-1U);
     uint32_t rnrOffset = rnr % MPU_TYPE_RALIASES;
@@ -295,7 +308,7 @@ __STATIC_INLINE void ARM_MPU_LoadEx(MPU_Type* mpu, uint32_t rnr, ARM_MPU_Region_
     mpu->RNR = rnrBase;
     while ((rnrOffset + cnt) > MPU_TYPE_RALIASES) {
       uint32_t c = MPU_TYPE_RALIASES - rnrOffset;
-      orderedCpy(&(mpu->RBAR)+(rnrOffset*2U), &(table->RBAR), c*rowWordSize);
+      ARM_MPU_OrderedMemcpy(&(mpu->RBAR)+(rnrOffset*2U), &(table->RBAR), c*rowWordSize);
       table += c;
       cnt -= c;
       rnrOffset = 0U;
@@ -303,7 +316,7 @@ __STATIC_INLINE void ARM_MPU_LoadEx(MPU_Type* mpu, uint32_t rnr, ARM_MPU_Region_
       mpu->RNR = rnrBase;
     }
     
-    orderedCpy(&(mpu->RBAR)+(rnrOffset*2U), &(table->RBAR), cnt*rowWordSize);
+    ARM_MPU_OrderedMemcpy(&(mpu->RBAR)+(rnrOffset*2U), &(table->RBAR), cnt*rowWordSize);
   }
 }