soc/st/stm32/stm32h7rsx/mpu_regions.c

/*
 * Copyright (c) 2017 Linaro Limited.
 * Copyright (c) 2025 STMicroelectronics
 *
 * SPDX-License-Identifier: Apache-2.0
 */

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

#include <zephyr/arch/arm/cortex_m/arm_mpu_mem_cfg.h>

static const struct arm_mpu_region mpu_regions[] = {
	/* Use first region to prevent speculative access in entire memory space */
	/* Region 0 */
	MPU_REGION_ENTRY("UNMAPPED", 0, {REGION_4G | MPU_RASR_XN_Msk | P_NA_U_NA_Msk}),

	/* Region 1 */
	MPU_REGION_ENTRY("PERIPH", 0x40000000, REGION_IO_ATTR(REGION_512M)),

#ifdef CONFIG_XIP
	/* Region 2 */
	MPU_REGION_ENTRY("FLASH_0", CONFIG_FLASH_BASE_ADDRESS,
			 REGION_FLASH_ATTR(REGION_FLASH_SIZE)),
#endif

	/* Region 3 */
	MPU_REGION_ENTRY("SRAM_0", CONFIG_SRAM_BASE_ADDRESS, REGION_RAM_ATTR(REGION_SRAM_SIZE)),
};

const struct arm_mpu_config mpu_config = {
	.num_regions = ARRAY_SIZE(mpu_regions),
	.mpu_regions = mpu_regions,
};