LINUX_KARCH := mips
else ifneq (,$(findstring $(ARCH) , powerpc64 ))
LINUX_KARCH := powerpc
+else ifneq (,$(findstring $(ARCH) , riscv64 ))
+ LINUX_KARCH := riscv
else ifneq (,$(findstring $(ARCH) , sh2 sh3 sh4 ))
LINUX_KARCH := sh
else ifneq (,$(findstring $(ARCH) , i386 x86_64 ))