diff --git a/arch/arch.mk.riscv b/arch/arch.mk.riscv
index 8d223614..af9fa40b 100644
--- a/arch/arch.mk.riscv
+++ b/arch/arch.mk.riscv
@@ -32,8 +32,10 @@ endif
 # suffixes are needed to enable their support. In Buildroot, we assume
 # all RISC-V cores that support Linux implement those instructions, so
 # we unconditionally enable those extensions.
+# For starfive JH7110, add _zicsr_zifencei_zba_zbb as default march
 ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_12),y)
 GCC_TARGET_ARCH := $(GCC_TARGET_ARCH)_zicsr_zifencei
+GCC_TARGET_ARCH := $(GCC_TARGET_ARCH)_zba_zbb
 endif
 
 endif