Espressif ESP32 UART support
modulename: esp32_uart.ko
configname: CONFIG_SERIAL_ESP32
Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Device Tree and Open Firmware support
└─>Espressif ESP32 UART support
In linux kernel since version 4.14.330 (release Date: 2023-11-20)
Driver for the UART controllers of the Espressif ESP32xx SoCs.
When earlycon option is enabled the following kernel command line
snippets may be used:
earlycon=esp32s3uart,mmio32,0x60000000,115200n8,40000000
earlycon=esp32uart,mmio32,0x3ff40000,115200n8
When earlycon option is enabled the following kernel command line
snippets may be used:
earlycon=esp32s3uart,mmio32,0x60000000,115200n8,40000000
earlycon=esp32uart,mmio32,0x3ff40000,115200n8