apidoc/latest/arm__mpu__mem__cfg_8h_source.html

/*

 * Copyright (c) 2017 Linaro Limited.

 * Copyright 2025 NXP

 *

 * SPDX-License-Identifier: Apache-2.0

 */

#ifndef _INCLUDE_ZEPHYR_ARCH_ARM_MPU_MEM_CFG_H_

#define _INCLUDE_ZEPHYR_ARCH_ARM_MPU_MEM_CFG_H_


#include <zephyr/arch/arm/mpu/arm_mpu.h>


#if !defined(CONFIG_ARMV8_M_BASELINE) && !defined(CONFIG_ARMV8_M_MAINLINE)


/* Flash Region Definitions */

#if CONFIG_FLASH_SIZE <= 64

#define REGION_FLASH_SIZE REGION_64K

#elif CONFIG_FLASH_SIZE <= 128

#define REGION_FLASH_SIZE REGION_128K

#elif CONFIG_FLASH_SIZE <= 256

#define REGION_FLASH_SIZE REGION_256K

#elif CONFIG_FLASH_SIZE <= 512

#define REGION_FLASH_SIZE REGION_512K

#elif CONFIG_FLASH_SIZE <= 1024

#define REGION_FLASH_SIZE REGION_1M

#elif CONFIG_FLASH_SIZE <= 2048

#define REGION_FLASH_SIZE REGION_2M

#elif CONFIG_FLASH_SIZE <= 4096

#define REGION_FLASH_SIZE REGION_4M

#elif CONFIG_FLASH_SIZE <= 8192

#define REGION_FLASH_SIZE REGION_8M

#elif CONFIG_FLASH_SIZE <= 16384

#define REGION_FLASH_SIZE REGION_16M

#elif CONFIG_FLASH_SIZE <= 65536

#define REGION_FLASH_SIZE REGION_64M

#elif CONFIG_FLASH_SIZE <= 131072

#define REGION_FLASH_SIZE REGION_128M

#elif CONFIG_FLASH_SIZE <= 262144

#define REGION_FLASH_SIZE REGION_256M

#elif CONFIG_FLASH_SIZE <= 524288

#define REGION_FLASH_SIZE REGION_512M

#elif CONFIG_FLASH_SIZE <= 1048576

#define REGION_FLASH_SIZE REGION_1G

#elif CONFIG_FLASH_SIZE <= 2097152

#define REGION_FLASH_SIZE REGION_2G

#elif CONFIG_FLASH_SIZE <= 4194304

#define REGION_FLASH_SIZE REGION_4G

#else

#error "Unsupported flash size configuration"

#endif


/* SRAM Region Definitions */

#if CONFIG_SRAM_SIZE <= 16

#define REGION_SRAM_SIZE REGION_16K

#elif CONFIG_SRAM_SIZE <= 32

#define REGION_SRAM_SIZE REGION_32K

#elif CONFIG_SRAM_SIZE <= 64

#define REGION_SRAM_SIZE REGION_64K

#elif CONFIG_SRAM_SIZE <= 128

#define REGION_SRAM_SIZE REGION_128K

#elif CONFIG_SRAM_SIZE <= 256

#define REGION_SRAM_SIZE REGION_256K

#elif CONFIG_SRAM_SIZE <= 512

#define REGION_SRAM_SIZE REGION_512K

#elif CONFIG_SRAM_SIZE <= 1024

#define REGION_SRAM_SIZE REGION_1M

#elif CONFIG_SRAM_SIZE <= 2048

#define REGION_SRAM_SIZE REGION_2M

#elif CONFIG_SRAM_SIZE <= 4096

#define REGION_SRAM_SIZE REGION_4M

#elif CONFIG_SRAM_SIZE <= 8192

#define REGION_SRAM_SIZE REGION_8M

#elif CONFIG_SRAM_SIZE <= 16384

#define REGION_SRAM_SIZE REGION_16M

#elif CONFIG_SRAM_SIZE <= 32768

#define REGION_SRAM_SIZE REGION_32M

#elif CONFIG_SRAM_SIZE <= 65536

#define REGION_SRAM_SIZE REGION_64M

#elif CONFIG_SRAM_SIZE <= 131072

#define REGION_SRAM_SIZE REGION_128M

#elif CONFIG_SRAM_SIZE <= 262144

#define REGION_SRAM_SIZE REGION_256M

#elif CONFIG_SRAM_SIZE <= 524288

#define REGION_SRAM_SIZE REGION_512M

#elif CONFIG_SRAM_SIZE <= 1048576

#define REGION_SRAM_SIZE REGION_1G

#elif CONFIG_SRAM_SIZE <= 2097152

#define REGION_SRAM_SIZE REGION_2G

#elif CONFIG_SRAM_SIZE <= 4194304

#define REGION_SRAM_SIZE REGION_4G

#else

#error "Unsupported sram size configuration"

#endif


/* Define Wrong value  */

#define REGION_SIZE_UNSUPPORTED -1


/* Customed Memory Region Definitions  */


#define REGION_CUSTOMED_MEMORY_SIZE(size_kb) \

        ((size_kb) <= 16      ? REGION_16K : \

        (size_kb) <= 32       ? REGION_32K : \

        (size_kb) <= 64       ? REGION_64K : \

        (size_kb) <= 128      ? REGION_128K : \

        (size_kb) <= 256      ? REGION_256K : \

        (size_kb) <= 512      ? REGION_512K : \

        (size_kb) <= 1024     ? REGION_1M : \

        (size_kb) <= 2048     ? REGION_2M : \

        (size_kb) <= 4096     ? REGION_4M : \

        (size_kb) <= 8192     ? REGION_8M : \

        (size_kb) <= 16384    ? REGION_16M : \

        (size_kb) <= 32768    ? REGION_32M : \

        (size_kb) <= 65536    ? REGION_64M : \

        (size_kb) <= 131072   ? REGION_128M : \

        (size_kb) <= 262144   ? REGION_256M : \

        (size_kb) <= 524288   ? REGION_512M : \

        (size_kb) <= 1048576  ? REGION_1G : \

        (size_kb) <= 2097152  ? REGION_2G : \

        (size_kb) <= 4194304  ? REGION_4G : \

        REGION_SIZE_UNSUPPORTED)


#endif /* !ARMV8_M_BASELINE && !ARMV8_M_MAINLINE */


#endif /* _INCLUDE_ZEPHYR_ARCH_ARM_MPU_MEM_CFG_H_ */

arm_mpu.h