| # Copyright (c) 2025 Espressif Systems (Shanghai) Co., Ltd. |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| if SOC_FAMILY_ESPRESSIF_ESP32 |
| |
| config ESP32_EFUSE_VIRTUAL |
| bool "Simulate eFuse operations in RAM" |
| help |
| If "y" - The virtual mode is enabled and all eFuse operations (read and write) are redirected |
| to RAM instead of eFuse registers, all permanent changes (via eFuse) are disabled. |
| |
| If it is "y", then SECURE_FLASH_ENCRYPTION_MODE_RELEASE cannot be used. |
| Because the EFUSE VIRT mode is for testing only. |
| |
| During startup, the eFuses are copied into RAM. This mode is useful for fast tests. |
| |
| config ESP32_EFUSE_VIRTUAL_KEEP_IN_FLASH |
| bool "Keep eFuses in flash" |
| depends on ESP32_EFUSE_VIRTUAL |
| help |
| In addition to the "Simulate eFuse operations in RAM" option, this option just adds |
| a feature to keep eFuses after reboots in flash memory. To use this mode the partition_table |
| should have the `sys_partition` partition. |
| |
| During startup, the eFuses are copied from flash or, |
| in case if flash is empty, from real eFuse to RAM and then update flash. |
| This mode is useful when need to keep changes after reboot |
| (testing secure_boot and flash_encryption). |
| |
| config ESP32_EFUSE_VIRTUAL_OFFSET |
| hex |
| depends on ESP32_EFUSE_VIRTUAL_KEEP_IN_FLASH |
| default $(dt_nodelabel_reg_addr_hex,sys_partition) if $(dt_nodelabel_exists,sys_partition) |
| default 0x0 |
| |
| config ESP32_EFUSE_VIRTUAL_SIZE |
| hex |
| depends on ESP32_EFUSE_VIRTUAL_KEEP_IN_FLASH |
| default 0x2000 if $(dt_nodelabel_exists,sys_partition) |
| default 0x0 |
| |
| config ESP32_EFUSE_MAX_BLK_LEN |
| int |
| default 192 if SOC_SERIES_ESP32 |
| default 256 |
| |
| endif # SOC_FAMILY_ESPRESSIF_ESP32 |
