CONFIG_ARCH_SUNPLUS is not available for the default architecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_SUNPLUS.
Result is shown for kernelversion 6.0-rc7

Sunplus SoCs


Linux Kernel Configuration
└─> Sunplus SoCs

Support for Sunplus SoC family: SP7021 and succeeding SoC-based systems,
such as the Banana Pi BPI-F2S development board (and derivatives).