CONFIG_ETRAX_I2C_USES_PB_NOT_PB_I2C is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_ETRAX_I2C_USES_PB_NOT_PB_I2C.
Result is shown for kernelversion 6.7-rc3

I2C uses PB not PB-I2C


Linux Kernel Configuration
└─>I2C uses PB not PB-I2C
In linux kernel since version 2.6.12  
Select whether to use the special I2C mode in the PB I/O register or
not. This option needs to be selected in order to use some drivers
that access the I2C I/O pins directly instead of going through the
I2C driver, like the DS1302 realtime-clock driver. If you are
uncertain, choose Y here.