diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index fb5fe5a..d9854f5 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -56,6 +56,7 @@
 
 # platform-specific options below
 source "arch/riscv/cpu/ax25/Kconfig"
+source "arch/riscv/cpu/fu540/Kconfig"
 source "arch/riscv/cpu/generic/Kconfig"
 
 # architecture-specific options below