CONFIG_SH_PCLK_FREQ_BOOL is not available for thedefaultarchitecture x86.
Result is shown for architecture sh
default or selected kernelversion does not have config value CONFIG_SH_PCLK_FREQ_BOOL.
Result is shown for kernelversion 5.10.83

Set default pclk frequency

configname: CONFIG_SH_PCLK_FREQ_BOOL

Linux/SuperH Kernel Configuration
└─>System type
└─>Set default pclk frequency
In linux kernel since version 2.6.16.1 (release Date: 2006-03-27)