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Revert "arch: arm: mpu: fix erratum 1013783-B"

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This reverts commit 983b1d088c.

Signed-off-by: Manuel Argüelles <manuel.arguelles@nxp.com>
This commit is contained in:
Manuel Argüelles 2025-05-30 19:53:01 +07:00 committed by Anas Nashif
parent db726c40a9
commit 63ebf4d23f
1 changed files with 2 additions and 12 deletions
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14
arch/arm/core/mpu/arm_mpu_regions.c
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@ -1,6 +1,5 @@
/*
* Copyright (c) 2017 Linaro Limited.
* Copyright 2025 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -11,18 +10,8 @@
#include <zephyr/arch/arm/cortex_m/arm_mpu_mem_cfg.h>
static const struct arm_mpu_region mpu_regions[] = {
#if defined(CONFIG_CPU_CORTEX_M7) && defined(CONFIG_CPU_HAS_ARM_MPU) && \
defined(CONFIG_CPU_HAS_DCACHE)
/* Erratum 1013783-B (SDEN-1068427): use first region to prevent speculative access
* in entire memory space
*/
MPU_REGION_ENTRY("BACKGROUND",
0,
{REGION_4G | MPU_RASR_XN_Msk | P_NA_U_NA_Msk}),
#endif
#ifdef CONFIG_XIP
/* Region 0 */
MPU_REGION_ENTRY("FLASH_0",
CONFIG_FLASH_BASE_ADDRESS,
#if defined(CONFIG_ARMV8_M_BASELINE) || defined(CONFIG_ARMV8_M_MAINLINE)
@ -33,6 +22,7 @@ static const struct arm_mpu_region mpu_regions[] = {
#endif
#endif
/* Region 1 */
MPU_REGION_ENTRY("SRAM_0",
CONFIG_SRAM_BASE_ADDRESS,
#if defined(CONFIG_ARMV8_M_BASELINE) || defined(CONFIG_ARMV8_M_MAINLINE)