--- linux-2.6.30.9.orig/arch/rlx/Makefile	2013-09-05 11:51:23.000000000 +0000
+++ linux-2.6.30.9.orig/arch/rlx/Makefile	2013-09-02 13:49:09.000000000 +0000
@@ -32,6 +32,8 @@ vmlinux-32		= vmlinux
 cflags-y := -ffunction-sections
 cflags-y += $(call cc-option, -mno-check-zero-division)
 cflags-y += -mabi=32
+cflags-$(CONFIG_ARCH_CPU_RLX4181) += -march=rlx4181
+cflags-$(CONFIG_ARCH_CPU_RLX5281) += -march=rlx5281
 
 #
 # GCC uses -G 0 -mabicalls -fpic as default.  We don't want PIC in the kernel