+JFFS2_BLOCKSIZE ?= 64k 128k
+
+define add_jffs2_mark
+ echo -ne '\xde\xad\xc0\xde' >> $(1)
+endef
+
+# pad to 64k and add jffs2 end-of-filesystem mark
+# do this twice to make sure that this works with 128k blocksize as well
+define prepare_generic_squashfs
+ dd if=$(1) of=$(KDIR)/tmpfile.1 bs=64k conv=sync
+ $(call add_jffs2_mark,$(KDIR)/tmpfile.1)
+ dd of=$(1) if=$(KDIR)/tmpfile.1 bs=64k conv=sync
+ $(call add_jffs2_mark,$(1))
+endef
+