CONFIG_C_AMBEN_B0_B1 is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_C_AMBEN_B0_B1.
Result is shown for kernelversion 6.7-rc3

Enable Bank 0 & 1

configname: CONFIG_C_AMBEN_B0_B1

Enable Asynchronous Memory Banks
└─>Enable Bank 0 & 1
In linux kernel since version 2.6.24 (release Date: 2008-01-24)