CONFIG_MN10300_TTYSM2 is not available for thedefaultarchitecture x86.
Result is shown for architecture mn10300
Enable SIF2 (/dev/ttySM2)
configname: CONFIG_MN10300_TTYSM2
Linux Kernel Configuration
└─>Panasonic MN10300 system setup
└─>MN10300 internal serial options
└─>Enable SIF2 (/dev/ttySM2)
In linux kernel since version 2.6.25 (release Date: 2008-04-16)
Enable access to SIF2 through /dev/ttySM2 or gdb-stub