CONFIG_SOC_ASPEED (not configurable)

configname: CONFIG_SOC_ASPEED

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>Aspeed SoC drivers
└─>SOC_ASPEED
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
depends
CONFIG_ARCH_ASPEED or CONFIG_COMPILE_TEST

is selected by
CONFIG_ASPEED_P2A_CTRL