components/bootloader_support/src/bootloader_mem.c (ESP-IDF) - CodeScope

Outline

#include <stdbool.h>

#include "hal/mpu_hal.h"

#include "hal/mpu_types.h"

#include "soc/soc_caps.h"

#include "bootloader_mem.h"

#include "esp_cpu.h"

#include "hal/apm_hal.h"

bootloader_init_mem()

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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/bootloader_support/src/bootloader_mem.c

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/* * SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include <stdbool.h> #include "hal/mpu_hal.h" #include "hal/mpu_types.h" #include "soc/soc_caps.h" #include "bootloader_mem.h" #include "esp_cpu.h" #if SOC_APM_SUPPORTED #include "hal/apm_hal.h" #endif void bootloader_init_mem(void) { #if !defined(BOOTLOADER_BUILD) && defined(SOC_APM_SUPPORTED) /* By default, these access path filters are enable and allow the * access to masters only if they are in TEE mode. Since all masters * except HP CPU boots in REE mode, default setting of these filters * will deny the access to all masters except HP CPU. * So, at boot disabling these filters. They will enable as per the * use case by TEE initialization code. */ #ifdef SOC_APM_CTRL_FILTER_SUPPORTED apm_hal_apm_ctrl_filter_enable_all(false); #endif #endif #ifdef CONFIG_BOOTLOADER_REGION_PROTECTION_ENABLE // protect memory region esp_cpu_configure_region_protection(); #endif }

Details

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bootloader_init_mem()

esp_cpu_configure_region_protection()