Zephyr API Documentation
4.4.99
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arm_mpu_mem_cfg.h
Go to the documentation of this file.
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/*
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* Copyright (c) 2017 Linaro Limited.
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* Copyright 2025 NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef _INCLUDE_ZEPHYR_ARCH_ARM_MPU_MEM_CFG_H_
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#define _INCLUDE_ZEPHYR_ARCH_ARM_MPU_MEM_CFG_H_
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#include <
zephyr/arch/arm/mpu/arm_mpu.h
>
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#if !defined(CONFIG_ARMV8_M_BASELINE) && !defined(CONFIG_ARMV8_M_MAINLINE)
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/* Flash Region Definitions */
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#if CONFIG_FLASH_SIZE <= 32
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#define REGION_FLASH_SIZE REGION_32K
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#elif CONFIG_FLASH_SIZE <= 64
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#define REGION_FLASH_SIZE REGION_64K
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#elif CONFIG_FLASH_SIZE <= 128
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#define REGION_FLASH_SIZE REGION_128K
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#elif CONFIG_FLASH_SIZE <= 256
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#define REGION_FLASH_SIZE REGION_256K
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#elif CONFIG_FLASH_SIZE <= 512
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#define REGION_FLASH_SIZE REGION_512K
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#elif CONFIG_FLASH_SIZE <= 1024
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#define REGION_FLASH_SIZE REGION_1M
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#elif CONFIG_FLASH_SIZE <= 2048
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#define REGION_FLASH_SIZE REGION_2M
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#elif CONFIG_FLASH_SIZE <= 4096
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#define REGION_FLASH_SIZE REGION_4M
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#elif CONFIG_FLASH_SIZE <= 8192
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#define REGION_FLASH_SIZE REGION_8M
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#elif CONFIG_FLASH_SIZE <= 16384
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#define REGION_FLASH_SIZE REGION_16M
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#elif CONFIG_FLASH_SIZE <= 32768
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#define REGION_FLASH_SIZE REGION_32M
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#elif CONFIG_FLASH_SIZE <= 65536
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#define REGION_FLASH_SIZE REGION_64M
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#elif CONFIG_FLASH_SIZE <= 131072
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#define REGION_FLASH_SIZE REGION_128M
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#elif CONFIG_FLASH_SIZE <= 262144
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#define REGION_FLASH_SIZE REGION_256M
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#elif CONFIG_FLASH_SIZE <= 524288
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#define REGION_FLASH_SIZE REGION_512M
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#elif CONFIG_FLASH_SIZE <= 1048576
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#define REGION_FLASH_SIZE REGION_1G
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#elif CONFIG_FLASH_SIZE <= 2097152
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#define REGION_FLASH_SIZE REGION_2G
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#elif CONFIG_FLASH_SIZE <= 4194304
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#define REGION_FLASH_SIZE REGION_4G
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#else
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#error "Unsupported flash size configuration"
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#endif
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#define Z_SRAM_SIZE (DT_CHOSEN_SRAM_SIZE / 1024)
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/* SRAM Region Definitions */
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#if Z_SRAM_SIZE <= 16
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#define REGION_SRAM_SIZE REGION_16K
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#elif Z_SRAM_SIZE <= 32
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#define REGION_SRAM_SIZE REGION_32K
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#elif Z_SRAM_SIZE <= 64
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#define REGION_SRAM_SIZE REGION_64K
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#elif Z_SRAM_SIZE <= 128
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#define REGION_SRAM_SIZE REGION_128K
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#elif Z_SRAM_SIZE <= 256
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#define REGION_SRAM_SIZE REGION_256K
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#elif Z_SRAM_SIZE <= 512
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#define REGION_SRAM_SIZE REGION_512K
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#elif Z_SRAM_SIZE <= 1024
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#define REGION_SRAM_SIZE REGION_1M
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#elif Z_SRAM_SIZE <= 2048
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#define REGION_SRAM_SIZE REGION_2M
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#elif Z_SRAM_SIZE <= 4096
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#define REGION_SRAM_SIZE REGION_4M
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#elif Z_SRAM_SIZE <= 8192
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#define REGION_SRAM_SIZE REGION_8M
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#elif Z_SRAM_SIZE <= 16384
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#define REGION_SRAM_SIZE REGION_16M
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#elif Z_SRAM_SIZE <= 32768
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#define REGION_SRAM_SIZE REGION_32M
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#elif Z_SRAM_SIZE <= 65536
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#define REGION_SRAM_SIZE REGION_64M
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#elif Z_SRAM_SIZE <= 131072
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#define REGION_SRAM_SIZE REGION_128M
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#elif Z_SRAM_SIZE <= 262144
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#define REGION_SRAM_SIZE REGION_256M
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#elif Z_SRAM_SIZE <= 524288
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#define REGION_SRAM_SIZE REGION_512M
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#elif Z_SRAM_SIZE <= 1048576
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#define REGION_SRAM_SIZE REGION_1G
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#elif Z_SRAM_SIZE <= 2097152
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#define REGION_SRAM_SIZE REGION_2G
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#elif Z_SRAM_SIZE <= 4194304
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#define REGION_SRAM_SIZE REGION_4G
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#else
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#error "Unsupported sram size configuration"
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#endif
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#undef Z_SRAM_SIZE
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/* Define Wrong value */
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#define REGION_SIZE_UNSUPPORTED -1
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/* Customed Memory Region Definitions */
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#define REGION_CUSTOMED_MEMORY_SIZE(size_kb) \
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((size_kb) <= 16 ? REGION_16K : \
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(size_kb) <= 32 ? REGION_32K : \
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(size_kb) <= 64 ? REGION_64K : \
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(size_kb) <= 128 ? REGION_128K : \
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(size_kb) <= 256 ? REGION_256K : \
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(size_kb) <= 512 ? REGION_512K : \
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(size_kb) <= 1024 ? REGION_1M : \
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(size_kb) <= 2048 ? REGION_2M : \
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(size_kb) <= 4096 ? REGION_4M : \
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(size_kb) <= 8192 ? REGION_8M : \
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(size_kb) <= 16384 ? REGION_16M : \
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(size_kb) <= 32768 ? REGION_32M : \
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(size_kb) <= 65536 ? REGION_64M : \
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(size_kb) <= 131072 ? REGION_128M : \
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(size_kb) <= 262144 ? REGION_256M : \
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(size_kb) <= 524288 ? REGION_512M : \
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(size_kb) <= 1048576 ? REGION_1G : \
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(size_kb) <= 2097152 ? REGION_2G : \
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(size_kb) <= 4194304 ? REGION_4G : \
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REGION_SIZE_UNSUPPORTED)
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#endif
/* !ARMV8_M_BASELINE && !ARMV8_M_MAINLINE */
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#endif
/* _INCLUDE_ZEPHYR_ARCH_ARM_MPU_MEM_CFG_H_ */
arm_mpu.h
zephyr
arch
arm
mpu
arm_mpu_mem_cfg.h
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