esp-idf/components/esp_hw_support/Kconfig

menu "Hardware Settings"

    menu "Chip revision"
        # Insert chip-specific HW config
        orsource "./port/$IDF_TARGET/Kconfig.hw_support"

        config ESP_REV_NEW_CHIP_TEST
            bool "Internal test mode"
            depends on IDF_CI_BUILD
            default n
            help
                For internal chip testing, a small number of new versions chips didn't
                update the version field in eFuse, you can enable this option to force the
                software recognize the chip version based on the rev selected in menuconfig.
    endmenu

    orsource "./port/$IDF_TARGET/Kconfig.spiram"

    menu "MAC Config"
        config ESP_MAC_ADDR_UNIVERSE_WIFI_STA
            bool

        config ESP_MAC_ADDR_UNIVERSE_WIFI_AP
            bool

        config ESP_MAC_ADDR_UNIVERSE_BT
            bool

        config ESP_MAC_ADDR_UNIVERSE_ETH
            bool

        config ESP_MAC_ADDR_UNIVERSE_IEEE802154
            bool

        config ESP_MAC_UNIVERSAL_MAC_ADDRESSES_ONE
            bool

        config ESP_MAC_UNIVERSAL_MAC_ADDRESSES_TWO
            bool

        config ESP_MAC_UNIVERSAL_MAC_ADDRESSES_FOUR
            bool

            # Insert chip-specific MAC config
        orsource "./port/$IDF_TARGET/Kconfig.mac"

        config ESP_MAC_IGNORE_MAC_CRC_ERROR
            bool "Ignore MAC CRC error (not recommended)"
            depends on IDF_TARGET_ESP32
            default n
            help
                If you have an invalid MAC CRC (ESP_ERR_INVALID_CRC) problem
                and you still want to use this chip, you can enable this option to bypass such an error.
                This applies to both MAC_FACTORY and CUSTOM_MAC efuses.
    endmenu

    menu "Sleep Config"
        # This is here since this option affect behavior of esp_light_sleep_start
        # regardless of power management configuration.
        config ESP_SLEEP_POWER_DOWN_FLASH
            bool "Power down flash in light sleep when there is no SPIRAM"
            depends on !SPIRAM
            default n
            help
                If enabled, chip will try to power down flash as part of esp_light_sleep_start(), which costs
                more time when chip wakes up. Can only be enabled if there is no SPIRAM configured.

                This option will power down flash under a strict but relatively safe condition. Also, it is possible to
                power down flash under a relaxed condition by using esp_sleep_pd_config() to set ESP_PD_DOMAIN_VDDSDIO
                to ESP_PD_OPTION_OFF. It should be noted that there is a risk in powering down flash, you can refer
                `ESP-IDF Programming Guide/API Reference/System API/Sleep Modes/Power-down of Flash` for more details.

        config ESP_SLEEP_FLASH_LEAKAGE_WORKAROUND
            bool "Pull-up Flash CS pin in light sleep"
            depends on !APP_BUILD_TYPE_PURE_RAM_APP && !ESP_SLEEP_POWER_DOWN_FLASH
            default y
            help
                All IOs will be set to isolate(floating) state by default during sleep.
                Since the power supply of SPI Flash is not lost during lightsleep, if its CS pin is recognized as
                low level(selected state) in the floating state, there will be a large current leakage, and the
                data in Flash may be corrupted by random signals on other SPI pins.
                Select this option will set the CS pin of Flash to PULL-UP state during sleep, but this will
                increase the sleep current about 10 uA.
                If you are developing with esp32xx modules, you must select this option, but if you are developing
                with chips, you can also pull up the CS pin of SPI Flash in the external circuit to save power
                consumption caused by internal pull-up during sleep.
                (!!! Don't deselect this option if you don't have external SPI Flash CS pin pullups.)

        config ESP_SLEEP_PSRAM_LEAKAGE_WORKAROUND
            bool "Pull-up PSRAM CS pin in light sleep"
            depends on SPIRAM
            default y
            help
                All IOs will be set to isolate(floating) state by default during sleep.
                Since the power supply of PSRAM is not lost during lightsleep, if its CS pin is recognized as
                low level(selected state) in the floating state, there will be a large current leakage, and the
                data in PSRAM may be corrupted by random signals on other SPI pins.
                Select this option will set the CS pin of PSRAM to PULL-UP state during sleep, but this will
                increase the sleep current about 10 uA.
                If you are developing with esp32xx modules, you must select this option, but if you are developing
                with chips, you can also pull up the CS pin of PSRAM in the external circuit to save power
                consumption caused by internal pull-up during sleep.
                (!!! Don't deselect this option if you don't have external PSRAM CS pin pullups.)

        config ESP_SLEEP_MSPI_NEED_ALL_IO_PU
            bool "Pull-up all SPI pins in light sleep"
            depends on !ESP_SLEEP_POWER_DOWN_FLASH \
                && (ESP_SLEEP_PSRAM_LEAKAGE_WORKAROUND || ESP_SLEEP_FLASH_LEAKAGE_WORKAROUND)
            default y if IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32S3
            help
                To reduce leakage current, some types of SPI Flash/RAM only need to pull up the CS pin
                during light sleep. But there are also some kinds of SPI Flash/RAM that need to pull up
                all pins. It depends on the SPI Flash/RAM chip used.

        config ESP_SLEEP_RTC_BUS_ISO_WORKAROUND
            bool
            default y if IDF_TARGET_ESP32 || IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3

        config ESP_SLEEP_GPIO_RESET_WORKAROUND
            bool "light sleep GPIO reset workaround"
            default y if IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3 || \
                IDF_TARGET_ESP32C6 || IDF_TARGET_ESP32H2
            select PM_SLP_DISABLE_GPIO if FREERTOS_USE_TICKLESS_IDLE
            help
                esp32c2, esp32c3, esp32s3, esp32c6 and esp32h2 will reset at wake-up if GPIO is received
                a small electrostatic pulse during light sleep, with specific condition

                - GPIO needs to be configured as input-mode only
                - The pin receives a small electrostatic pulse, and reset occurs when the pulse
                  voltage is higher than 6 V

                For GPIO set to input mode only, it is not a good practice to leave it open/floating,
                The hardware design needs to controlled it with determined supply or ground voltage
                is necessary.

                This option provides a software workaround for this issue. Configure to isolate all
                GPIO pins in sleep state.

        config ESP_SLEEP_DEEP_SLEEP_WAKEUP_DELAY
            int "Extra delay in deep sleep wake stub (in us)"
            depends on IDF_TARGET_ESP32 || IDF_TARGET_ESP32S3
            default 2000
            range 0 5000
            help
                When the chip exits deep sleep, the CPU and the flash chip are powered on
                at the same time. CPU will run deep sleep stub first, and then
                proceed to load code from flash. Some flash chips need sufficient
                time to pass between power on and first read operation. By default,
                without any extra delay, this time is approximately 900us, although
                some flash chip types need more than that.

                By default extra delay is set to 2000us. When optimizing startup time
                for applications which require it, this value may be reduced.

                If you are seeing "flash read err, 1000" message printed to the
                console after deep sleep reset, try increasing this value.

        config ESP_SLEEP_CACHE_SAFE_ASSERTION
            bool "Check the cache safety of the sleep wakeup code in sleep process"
            default n
            help
                Enabling it will check the cache safety of the code before the flash power is ready after
                light sleep wakeup, and check PM_SLP_IRAM_OPT related code cache safety. This option is
                only for code quality inspection. Enabling it will increase the time overhead of entering
                and exiting sleep. It is not recommended to enable it in the release version.

        config ESP_SLEEP_DEBUG
            bool "esp sleep debug"
            default n
            help
                Enable esp sleep debug.

    endmenu

    menu "ESP_SLEEP_WORKAROUND"
        # No visible menu/configs for workaround
        visible if 0
        config ESP_SLEEP_SYSTIMER_STALL_WORKAROUND
            bool "ESP32C3 SYSTIMER Stall Issue Workaround"
            depends on IDF_TARGET_ESP32C3
            help
                Its not able to stall ESP32C3 systimer in sleep.
                To fix related RTOS TICK issue, select it to disable related systimer during sleep.
                TODO: IDF-7036
    endmenu

    menu "RTC Clock Config"
        orsource "./port/$IDF_TARGET/Kconfig.rtc"
    endmenu

    menu "Peripheral Control"
        config PERIPH_CTRL_FUNC_IN_IRAM
            bool "Place peripheral control functions into IRAM"
            default n
            help
                Place peripheral control functions (e.g. periph_module_reset) into IRAM,
                so that these functions can be IRAM-safe and able to be called in the other IRAM interrupt context.
    endmenu

    menu "ETM Configuration"
        depends on SOC_ETM_SUPPORTED
        config ETM_ENABLE_DEBUG_LOG
            bool "Enable debug log"
            default n
            help
                Wether to enable the debug log message for ETM core driver.
                Note that, this option only controls the ETM related driver log, won't affect other drivers.
    endmenu # ETM Configuration

    menu "GDMA Configuration"
        depends on SOC_GDMA_SUPPORTED
        config GDMA_CTRL_FUNC_IN_IRAM
            bool "Place GDMA control functions into IRAM"
            default n
            help
                Place GDMA control functions (like start/stop/append/reset) into IRAM,
                so that these functions can be IRAM-safe and able to be called in the other IRAM interrupt context.
                Enabling this option can improve driver performance as well.

        config GDMA_ISR_IRAM_SAFE
            bool "GDMA ISR IRAM-Safe"
            default n
            help
                This will ensure the GDMA interrupt handler is IRAM-Safe, allow to avoid flash
                cache misses, and also be able to run whilst the cache is disabled.
                (e.g. SPI Flash write).

        config GDMA_ENABLE_DEBUG_LOG
            bool "Enable debug log"
            default n
            help
                Wether to enable the debug log message for GDMA driver.
                Note that, this option only controls the GDMA driver log, won't affect other drivers.
    endmenu # GDMA Configuration

    menu "Main XTAL Config"
        choice XTAL_FREQ_SEL
            prompt "Main XTAL frequency"
            default XTAL_FREQ_40 if SOC_XTAL_SUPPORT_40M
            help
                This option selects the operating frequency of the XTAL (crystal) clock used to drive the ESP target.
                The selected value MUST reflect the frequency of the given hardware.

                Note: The XTAL_FREQ_AUTO option allows the ESP target to automatically estimating XTAL clock's
                operating frequency. However, this feature is only supported on the ESP32. The ESP32 uses the
                internal 8MHZ as a reference when estimating. Due to the internal oscillator's frequency being
                temperature dependent, usage of the XTAL_FREQ_AUTO is not recommended in applications that operate
                in high ambient temperatures or use high-temperature qualified chips and modules.

            config XTAL_FREQ_24
                depends on SOC_XTAL_SUPPORT_24M
                bool "24 MHz"
            config XTAL_FREQ_26
                depends on SOC_XTAL_SUPPORT_26M
                bool "26 MHz"
            config XTAL_FREQ_32
                depends on SOC_XTAL_SUPPORT_32M
                bool "32 MHz"
            config XTAL_FREQ_40
                depends on SOC_XTAL_SUPPORT_40M
                bool "40 MHz"
            config XTAL_FREQ_AUTO
                depends on SOC_XTAL_SUPPORT_AUTO_DETECT
                bool "Autodetect"
        endchoice

        # rtc_xtal_freq_t enum in soc/rtc.h lists the XTAL frequencies can be supported
        # SOC_XTAL_SUPPORT_XXX in soc_caps.h lists the XTAL frequencies already supported
        config XTAL_FREQ
            int
            default 24 if XTAL_FREQ_24
            default 26 if XTAL_FREQ_26
            default 32 if XTAL_FREQ_32
            default 40 if XTAL_FREQ_40
            default 0  if XTAL_FREQ_AUTO
    endmenu

    menu "Crypto DPA Protection"
        depends on SOC_CRYPTO_DPA_PROTECTION_SUPPORTED
        config ESP_CRYPTO_DPA_PROTECTION_AT_STARTUP
            bool "Enable crypto DPA protection at startup"
            default y
            help
                This config controls the DPA (Differential Power Analysis) protection
                knob for the crypto peripherals. DPA protection dynamically adjusts the
                clock frequency of the crypto peripheral. DPA protection helps to make it
                difficult to perform SCA attacks on the crypto peripherals. However,
                there is also associated performance impact based on the security level
                set. Please refer to the TRM for more details.

        choice ESP_CRYPTO_DPA_PROTECTION_LEVEL
            prompt "DPA protection level"
            depends on ESP_CRYPTO_DPA_PROTECTION_AT_STARTUP
            default ESP_CRYPTO_DPA_PROTECTION_LEVEL_LOW
            help
                Configure the DPA protection security level

            config ESP_CRYPTO_DPA_PROTECTION_LEVEL_LOW
                bool "Security level low"

            config ESP_CRYPTO_DPA_PROTECTION_LEVEL_MEDIUM
                bool "Security level medium"

            config ESP_CRYPTO_DPA_PROTECTION_LEVEL_HIGH
                bool "Security level high"
        endchoice

        config ESP_CRYPTO_DPA_PROTECTION_LEVEL
            int
            default 1 if ESP_CRYPTO_DPA_PROTECTION_LEVEL_LOW
            default 2 if ESP_CRYPTO_DPA_PROTECTION_LEVEL_MEDIUM
            default 3 if ESP_CRYPTO_DPA_PROTECTION_LEVEL_HIGH

    endmenu

    # Invisible bringup bypass options for esp_hw_support component
    config ESP_BRINGUP_BYPASS_CPU_CLK_SETTING
        bool
        default y if !SOC_CLK_TREE_SUPPORTED
        default n
        help
            This option is only used for new chip bringup, when
            clock support isn't done yet. So with this option,
            we use xtal on FPGA as the clock source.

endmenu