choice XTAL_FREQ
    prompt "Main XTAL frequency"
    default XTAL_FREQ_AUTO
    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: ESP32C5 supports crystal frequencies of 40 MHz and 48 MHz. With XTAL_FREQ_AUTO option, boot
        mode together with MTMS pin, EFUSE_XTAL_48M_SEL, and EFUSE_XTAL_48M_SEL_MODE collectively control
        the crystal frequency, and record to PCR_CLK_XTAL_FREQ register field.

    config XTAL_FREQ_AUTO
        bool "Autodetect"
endchoice

# soc_xtal_freq_t enum in soc/clk_tree_defs.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 0  if XTAL_FREQ_AUTO