--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -50,3 +50,5 @@ obj-$(CONFIG_UCODE_PATCH) += micropatch.
ifeq ($(CONFIG_SUSPEND),y)
obj-$(CONFIG_6xx) += 6xx-suspend.o
endif
+
+obj-$(CONFIG_RB_IOMAP) += rb_iomap.o