config SPIRAM
    bool "Support for external, SPI-connected RAM"
    default "n"
    help
        This enables support for an external SPI RAM chip, connected in parallel with the
        main SPI flash chip.

menu "SPI RAM config"
    depends on SPIRAM

    config SPIRAM_MODE_QUAD
        bool
        default "y"

    choice SPIRAM_TYPE
        prompt "Type of SPI RAM chip in use"
        default SPIRAM_TYPE_AUTO

        config SPIRAM_TYPE_AUTO
            bool "Auto-detect"

        config SPIRAM_TYPE_ESPPSRAM16
            bool "ESP-PSRAM16 or APS1604"

        config SPIRAM_TYPE_ESPPSRAM32
            bool "ESP-PSRAM32"

        config SPIRAM_TYPE_ESPPSRAM64
            bool "ESP-PSRAM64 or LY68L6400"
    endchoice

    config SPIRAM_ALLOW_STACK_EXTERNAL_MEMORY
        bool "Allow external memory as an argument to xTaskCreateStatic"
        default y
        help
            Accessing memory in SPIRAM has certain restrictions, so task stacks allocated by xTaskCreate
            are by default allocated from internal RAM.

            This option allows for passing memory allocated from SPIRAM to be passed to xTaskCreateStatic.
            This should only be used for tasks where the stack is never accessed while the cache is disabled.

    config SPIRAM_CLK_IO
        int
        default 30

    config SPIRAM_CS_IO
        int
        default 26

    config SPIRAM_XIP_FROM_PSRAM
        bool "Enable Executable in place from (XiP) from PSRAM feature"
        default n
        select SPIRAM_FETCH_INSTRUCTIONS
        select SPIRAM_RODATA
        help
            Helper for selecting both `SPIRAM_FETCH_INSTRUCTIONS` and `SPIRAM_RODATA`

    config SPIRAM_FETCH_INSTRUCTIONS
        bool "Move Instructions in Flash to PSRAM"
        default n
        help
            If enabled, instructions in flash will be moved into PSRAM on startup.
            If SPIRAM_RODATA is also enabled, code that requires execution during an MSPI1 Flash operation
            can forgo being placed in IRAM. Therefore codes that need to be executing during Flash
            operation can continue working normally.

            This feature is useful for high throughput peripheral involved applications to improve
            the performance during MSPI1 flash operations. PSRAM access speed is faster than Flash access.
            So the performance is better. (see External RAM documentation for more details).

    config SPIRAM_RODATA
        bool "Move Read-Only Data in Flash to PSRAM"
        default n
        help
            If enabled, rodata in flash will be moved into PSRAM on startup.
            If SPIRAM_FETCH_INSTRUCTIONS is also enabled, code that requires execution during an MSPI1 Flash operation
            is not necessary to be placed in IRAM. Therefore codes that need to be executing during Flash
            operation can continue working normally.

            This feature is useful for high throughput peripheral involved applications to improve
            the performance during MSPI1 flash operations. PSRAM access speed is faster than Flash access.
            So the performance is better. (see External RAM documentation for more details).

    choice SPIRAM_SPEED
        prompt "Set RAM clock speed"
        default SPIRAM_SPEED_40M
        help
            Select the speed for the SPI RAM chip.

        config SPIRAM_SPEED_80M
            bool "80MHz clock speed"
        config SPIRAM_SPEED_40M
            bool "40Mhz clock speed"
        config SPIRAM_SPEED_26M
            bool "26Mhz clock speed"
        config SPIRAM_SPEED_20M
            bool "20Mhz clock speed"
    endchoice

    config SPIRAM_SPEED
        int
        default 80 if SPIRAM_SPEED_80M
        default 40 if SPIRAM_SPEED_40M
        default 40 if SPIRAM_SPEED_26M
        default 40 if SPIRAM_SPEED_20M

    source "$IDF_PATH/components/esp_psram/Kconfig.spiram.common"    # insert non-chip-specific items here

endmenu