soc/riscv/esp32c3/Kconfig.soc

# Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
# SPDX-License-Identifier: Apache-2.0

config SOC_ESP32C3
	bool "ESP32C3"
	select RISCV
	select RISCV_GP
	select DYNAMIC_INTERRUPTS
	select CLOCK_CONTROL
	select PINCTRL
	select XIP
	select HAS_ESPRESSIF_HAL
	select RISCV_ISA_RV32I
	select RISCV_ISA_EXT_M
	select RISCV_ISA_EXT_A
	select RISCV_ISA_EXT_ZICSR
	select RISCV_ISA_EXT_ZIFENCEI

if SOC_ESP32C3

config IDF_TARGET_ESP32C3
	bool "ESP32C3 as target board"
	default y

config ESPTOOLPY_FLASHFREQ_80M
	bool
	default y

config FLASH_SIZE
	int
	default $(dt_node_reg_size_int,/soc/flash-controller@60002000/flash@0,0)

config FLASH_BASE_ADDRESS
	hex
	default $(dt_node_reg_addr_hex,/soc/flash-controller@60002000/flash@0)

config ESP_SYSTEM_RTC_EXT_XTAL
	bool

config ESP_SYSTEM_RTC_EXT_OSC
	bool

choice ESP32C3_RTC_CLK_SRC
	prompt "RTC clock source"
	default ESP32C3_RTC_CLK_SRC_INT_RC
	help
	  Choose which clock is used as RTC clock source.

config ESP32C3_RTC_CLK_SRC_INT_RC
	bool "Internal 150kHz RC oscillator"

config ESP32C3_RTC_CLK_SRC_EXT_CRYS
	bool "External 32kHz crystal"
	select ESP_SYSTEM_RTC_EXT_XTAL

config ESP32C3_RTC_CLK_SRC_EXT_OSC
	bool "External 32kHz oscillator at 32K_XP pin"
	select ESP_SYSTEM_RTC_EXT_OSC

config ESP32C3_RTC_CLK_SRC_INT_8MD256
	bool "Internal 8MHz oscillator, divided by 256 (~32kHz)"

endchoice

config ESP32C3_RTC_CLK_CAL_CYCLES
	int "Number of cycles for RTC_SLOW_CLK calibration"
	default 3000 if ESP32C3_RTC_CLK_SRC_EXT_CRYS || ESP32C3_RTC_CLK_SRC_EXT_OSC || ESP32C3_RTC_CLK_SRC_INT_8MD256
	default 1024 if ESP32C3_RTC_CLK_SRC_INT_RC
	range 0 27000 if ESP32C3_RTC_CLK_SRC_EXT_CRYS || ESP32C3_RTC_CLK_SRC_EXT_OSC || ESP32C3_RTC_CLK_SRC_INT_8MD256
	range 0 32766 if ESP32C3_RTC_CLK_SRC_INT_RC
	help
	  When the startup code initializes RTC_SLOW_CLK, it can perform
	  calibration by comparing the RTC_SLOW_CLK frequency with main XTAL
	  frequency. This option sets the number of RTC_SLOW_CLK cycles measured
	  by the calibration routine. Higher numbers increase calibration
	  precision, which may be important for applications which spend a lot of
	  time in deep sleep. Lower numbers reduce startup time.

	  When this option is set to 0, clock calibration will not be performed at
	  startup, and approximate clock frequencies will be assumed:

	  - 150000 Hz if internal RC oscillator is used as clock source. For this use value 1024.
	  - 32768 Hz if the 32k crystal oscillator is used. For this use value 3000 or more.
	    In case more value will help improve the definition of the launch of the crystal.
	    If the crystal could not start, it will be switched to internal RC.

config ESP32_PHY_MAX_WIFI_TX_POWER
	int "Max WiFi TX power (dBm)"
	range 10 20
	default 20
	help
	  Set maximum transmit power for WiFi radio. Actual transmit power for high
	  data rates may be lower than this setting.

config ESP32_PHY_MAX_TX_POWER
	int
	default ESP32_PHY_MAX_WIFI_TX_POWER

endif