# SPDX-FileCopyrightText: 2025 Gunar Schorcht
# SPDX-License-Identifier: LGPL-2.1-only

config CPU_FAM_ESP32C6
    bool
    select CPU_COMMON_ESP32X
    select CPU_CORE_RV32IMAC

config CPU_FAM
    default "esp32c6" if CPU_FAM_ESP32C6

## CPU Models
config CPU_MODEL_ESP32C6
    bool
    select CPU_FAM_ESP32C6
    help
        ESP32-C6 CPU without internal Flash

config CPU_MODEL_ESP32C6_FH4
    bool
    select CPU_FAM_ESP32C6
    help
        ESP32-C6 CPU with 4 MB Flash

config CPU_MODEL_ESP32C6_FH8
    bool
    select CPU_FAM_ESP32C6
    help
        ESP32-C6 CPU with 8 MB Flash

## CPU Modules
config CPU_MODEL_ESP32C6_MINI_1X_X4
    bool
    select CPU_MODEL_ESP32C6
    help
        ESP32-C6-MINI-1-N4, ESP32-C6-MINI-1U-N4, ESP32-C6-MINI-1-H4 or
        ESP32-C6-MINI-1U-H4 module with 4 MB Flash

config CPU_MODEL_ESP32C6_WROOM_1X_X4
    bool
    select CPU_MODEL_ESP32C6
    help
        ESP32-C6-WROOM-1-N4, ESP32-C6-WROOM-1U-N4, ESP32-C6-WROOM-1-H4 or
        ESP32-C6-WROOM-1U-H4 module with 4 MB Flash

config CPU_MODEL_ESP32C6_WROOM_1X_N8
    bool
    select CPU_MODEL_ESP32C6
    help
        ESP32-C6-WROOM-1-N8 or ESP32-C6-WROOM-1U-N8 module with 8 MB Flash

config CPU_MODEL_ESP32C6_WROOM_1X_N16
    bool
    select CPU_MODEL_ESP32C6
    help
        ESP32-C6-WROOM-1-N16 or ESP32-C6-WROOM-1U-N16 module with 16 MB Flash

## Choice
config CPU_MODEL
    depends on CPU_FAM_ESP32C6
    default "esp32c6_mini_1x_x4" if CPU_MODEL_ESP32C6_MINI_1X_X4
    default "esp32c6_wroom_1x_x4" if CPU_MODEL_ESP32C6_WROOM_1X_X4
    default "esp32c6_wroom_1x_n8" if CPU_MODEL_ESP32C6_WROOM_1X_N8
    default "esp32c6_wroom_1x_n16" if CPU_MODEL_ESP32C6_WROOM_1X_N16
    default "esp32c6" if CPU_MODEL_ESP32C6
    default "esp32c6_fh4" if CPU_MODEL_ESP32C6_FH4
    default "esp32c6_fh8" if CPU_MODEL_ESP32C6_FH8

if CPU_FAM_ESP32C6

menu "ESP32-C6 specific configurations"
    depends on HAS_ARCH_ESP32

    # define configuration menu entries for ESP32-C6 variant (family)

    choice
        bool "CPU clock frequency"
        default ESP32C6_DEFAULT_CPU_FREQ_MHZ_80
        help
            CPU clock frequency used (default 80 MHz).
            Please note that peripherals such as I2C or SPI might not work at
            the specified clock frequency if the selected CPU clock frequency
            is too low. These peripherals are clocked by the APB clock, which
            has a clock rate of 40 MHz for CPU clock frequencies greater than
            or equal to 40 MHz, but is equal to the CPU clock frequency for
            CPU clock frequencies less than 40 MHz. Thus, for SPI, the APB
            clock rate must be at least five times the SPI clock rate. For the
            I2C hardware implementation, the APB clock rate must be at least
            3 MHZ to use I2C in fast mode with a I2C clock rate of 400 kHz.
            For the I2C software implementation, the maximum I2C clock rate
            is 1/130 times the CPU clock rate.

        config ESP32C6_DEFAULT_CPU_FREQ_MHZ_20
            bool "20 MHz"
        config ESP32C6_DEFAULT_CPU_FREQ_MHZ_40
            bool "40 MHz"
        config ESP32C6_DEFAULT_CPU_FREQ_MHZ_80
            bool "80 MHz"
        config ESP32C6_DEFAULT_CPU_FREQ_MHZ_120
            bool "120 MHz"
        config ESP32C6_DEFAULT_CPU_FREQ_MHZ_160
            bool "160 MHz"
    endchoice

    # import configuration menu entries that are common for all ESP32x SoCs
    rsource "Kconfig.common"

endmenu

endif # CPU_FAM_ESP32C6