menu "RISCV architecture" depends on RISCV config SYS_ARCH default "riscv" choice prompt "Target select" optional config TARGET_AX25_AE350 bool "Support ax25-ae350" endchoice source "board/AndesTech/ax25-ae350/Kconfig" choice prompt "CPU selection" default CPU_RISCV_32 config CPU_RISCV_32 bool "RISCV 32 bit" select 32BIT help Choose this option to build an U-Boot for RISCV32 architecture. config CPU_RISCV_64 bool "RISCV 64 bit" select 64BIT help Choose this option to build an U-Boot for RISCV64 architecture. endchoice config 32BIT bool config 64BIT bool endmenu