CONFIG_ETRAX_SERIAL_PORT2 is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
Serial port 2 enabled
configname: CONFIG_ETRAX_SERIAL_PORT2
Linux Kernel Configuration
└─>Serial port 2 enabled
In linux kernel since version 2.6.12
Enables the ETRAX 100 serial driver for ser2 (ttyS2).