/* * SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include #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" void bootloader_init_mem(void) { #if !defined(BOOTLOADER_BUILD) /* 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. */ #if SOC_APM_CTRL_FILTER_SUPPORTED apm_hal_enable_ctrl_filter_all(false); /* [APM] On power-up, only the HP CPU starts in TEE mode; others * default to REE2. APM blocks REE0–REE2 access by default. * Thus, all masters are set to TEE mode. */ #if SOC_APM_SUPPORT_TEE_PERI_ACCESS_CTRL apm_hal_set_master_sec_mode_all(APM_SEC_MODE_TEE); #endif // SOC_APM_SUPPORT_TEE_PERI_ACCESS_CTRL #endif // SOC_APM_CTRL_FILTER_SUPPORTED #endif #if CONFIG_BOOTLOADER_REGION_PROTECTION_ENABLE // protect memory region esp_cpu_configure_region_protection(); #endif }