CONFIG_MN10300_TTYSM0 is not available for thedefaultarchitecture x86.
Result is shown for architecture mn10300
Enable SIF0 (/dev/ttySM0)
configname: CONFIG_MN10300_TTYSM0
Linux Kernel Configuration
└─>Panasonic MN10300 system setup
└─>MN10300 internal serial options
└─>Enable SIF0 (/dev/ttySM0)
In linux kernel since version 2.6.25 (release Date: 2008-04-16)
Enable access to SIF0 through /dev/ttySM0 or gdb-stub