CONFIG_ETRAX_DS1302_RST_ON_GENERIC_PORT is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_ETRAX_DS1302_RST_ON_GENERIC_PORT.
Result is shown for kernelversion 6.2.5

DS1302 RST on Generic Port

configname: CONFIG_ETRAX_DS1302_RST_ON_GENERIC_PORT

Linux Kernel Configuration
└─>DS1302 RST on Generic Port
In linux kernel since version 2.6.12  
If your product has the RST signal line for the DS1302 RTC on the
Generic Port then say Y here, otherwise leave it as N in which
case the RST signal line is assumed to be connected to Port PB
(just like the SCL and SDA lines).