Laukik Hase
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdbool.h>
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#include "hal/mpu_hal.h"
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#include "hal/mpu_types.h"
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#include "soc/soc_caps.h"
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#include "bootloader_mem.h"
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#include "esp_cpu.h"
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#include "hal/apm_hal.h"
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void bootloader_init_mem(void)
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{
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#if !defined(BOOTLOADER_BUILD)
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/* By default, these access path filters are enable and allow the
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* access to masters only if they are in TEE mode. Since all masters
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* except HP CPU boots in REE mode, default setting of these filters
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* will deny the access to all masters except HP CPU.
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* So, at boot disabling these filters. They will enable as per the
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* use case by TEE initialization code.
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*/
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#ifdef SOC_APM_CTRL_FILTER_SUPPORTED
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apm_hal_apm_ctrl_filter_enable_all(false);
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/* [APM] On power-up, only the HP CPU starts in TEE mode; others default to REE2.
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* APM blocks REE0–REE2 access by default. C5 ECO2 adds per-peripheral control
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* (default REEx blocking), but config support is pending. As a workaround,
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* all masters are set to TEE mode.
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*/
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#if SOC_APM_SUPPORT_TEE_PERI_ACCESS_CTRL
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apm_tee_hal_set_master_secure_mode_all(APM_LL_SECURE_MODE_TEE);
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#endif // SOC_APM_SUPPORT_TEE_PERI_ACCESS_CTRL
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#endif // SOC_APM_CTRL_FILTER_SUPPORTED
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#endif
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#ifdef CONFIG_BOOTLOADER_REGION_PROTECTION_ENABLE
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// protect memory region
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esp_cpu_configure_region_protection();
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#endif
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}
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