Line data    Source code

       1           0 : /*
       2             :  * Copyright (c) 2023 Carlo Caione <ccaione@baylibre.com>
       3             :  *
       4             :  * SPDX-License-Identifier: Apache-2.0
       5             :  */
       6             : #ifndef ZEPHYR_INCLUDE_DT_BINDINGS_MEM_ATTR_ARM_H_
       7             : #define ZEPHYR_INCLUDE_DT_BINDINGS_MEM_ATTR_ARM_H_
       8             : 
       9             : #include <zephyr/sys/util_macro.h>
      10             : #include <zephyr/dt-bindings/memory-attr/memory-attr.h>
      11             : 
      12             : /*
      13             :  * Architecture specific ARM MPU related attributes.
      14             :  *
      15             :  * This list is to seamlessly support the MPU regions configuration using DT and
      16             :  * the `zephyr,memory-attr` property.
      17             :  *
      18             :  * This is legacy and it should NOT be extended further. If new MPU region
      19             :  * types must be added, these must rely on the generic memory attributes.
      20             :  */
      21           0 : #define DT_MEM_ARM_MASK                 DT_MEM_ARCH_ATTR_MASK
      22           0 : #define DT_MEM_ARM_GET(x)               ((x) & DT_MEM_ARM_MASK)
      23           0 : #define DT_MEM_ARM(x)                   ((x) << DT_MEM_ARCH_ATTR_SHIFT)
      24             : 
      25           0 : #define  ATTR_MPU_RAM                   BIT(0)
      26           0 : #define  ATTR_MPU_RAM_NOCACHE           BIT(1)
      27           0 : #define  ATTR_MPU_FLASH                 BIT(2)
      28           0 : #define  ATTR_MPU_PPB                   BIT(3)
      29           0 : #define  ATTR_MPU_IO                    BIT(4)
      30           0 : #define  ATTR_MPU_EXTMEM                BIT(5)
      31             : 
      32           0 : #define DT_MEM_ARM_MPU_RAM              DT_MEM_ARM(ATTR_MPU_RAM)
      33           0 : #define DT_MEM_ARM_MPU_RAM_NOCACHE      DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE)
      34           0 : #define DT_MEM_ARM_MPU_FLASH            DT_MEM_ARM(ATTR_MPU_FLASH)
      35           0 : #define DT_MEM_ARM_MPU_PPB              DT_MEM_ARM(ATTR_MPU_PPB)
      36           0 : #define DT_MEM_ARM_MPU_IO               DT_MEM_ARM(ATTR_MPU_IO)
      37           0 : #define DT_MEM_ARM_MPU_EXTMEM           DT_MEM_ARM(ATTR_MPU_EXTMEM)
      38           0 : #define DT_MEM_ARM_MPU_UNKNOWN          DT_MEM_ARCH_ATTR_UNKNOWN
      39             : 
      40             : #endif /* ZEPHYR_INCLUDE_DT_BINDINGS_MEM_ATTR_ARM_H_ */