CONFIG_ARCH_HIGHBANK is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Calxeda ECX-1000/2000 (Highbank/Midway)

modulename: clk-highbank.ko

configname: CONFIG_ARCH_HIGHBANK

Linux Kernel Configuration
└─>Calxeda ECX-1000/2000 (Highbank/Midway)
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
drivers/clk/clk-highbank.c