55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* Copyright (c) 2021 Arm Limited (or its affiliates). All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <sys/slist.h>
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#include <linker/linker-defs.h>
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#include <arch/arm64/cortex_r/arm_mpu.h>
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#define DEVICE_REGION_START 0x80000000UL
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#define DEVICE_REGION_END 0xFFFFFFFFUL
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static const struct arm_mpu_region mpu_regions[] = {
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/* Region 0 */
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MPU_REGION_ENTRY("FLASH_0",
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CONFIG_FLASH_BASE_ADDRESS,
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CONFIG_FLASH_BASE_ADDRESS +
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KB(CONFIG_FLASH_SIZE),
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REGION_FLASH_ATTR),
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/* Region 1 zephyr text */
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MPU_REGION_ENTRY("SRAM_0",
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(uintptr_t)__text_region_start,
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(uintptr_t)__text_region_end,
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REGION_RAM_TEXT_ATTR),
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/* Region 2 zephyr rodata */
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MPU_REGION_ENTRY("SRAM_1",
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(uintptr_t)__rodata_region_start,
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(uintptr_t)__rodata_region_end,
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REGION_RAM_RO_ATTR),
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/* Region 3 zephyr data */
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MPU_REGION_ENTRY("SRAM_2",
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#ifdef CONFIG_USERSPACE
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(uintptr_t)_app_smem_start,
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#else
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(uintptr_t)__kernel_ram_start,
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#endif
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(uintptr_t)__kernel_ram_end,
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REGION_RAM_ATTR),
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/* Region 4 device region */
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MPU_REGION_ENTRY("DEVICE",
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DEVICE_REGION_START,
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DEVICE_REGION_END,
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REGION_DEVICE_ATTR)
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};
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const struct arm_mpu_config mpu_config = {
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.num_regions = ARRAY_SIZE(mpu_regions),
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.mpu_regions = mpu_regions,
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};
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