drivers/serial/Kconfig.esp32 - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 menuconfig UART_ESP32
 	bool "ESP32 UART driver"
 	default n
 	select SERIAL_HAS_DRIVER
 	depends on SOC_ESP32
 	help
 	Enable the ESP32 UART using ROM routines.
	menuconfig UART_ESP32
	bool "ESP32 UART driver"
	default n
	select SERIAL_HAS_DRIVER
	depends on SOC_ESP32
	help
	Enable the ESP32 UART using ROM routines.