increase kernel partition to 4MB, generate jffs2 images

SVN-Revision: 16251

target/linux/kirkwood/image/Makefile

@@ -7,6 +7,8 @@
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
 
+add_jffs2_mark=
+
 define Image/Prepare
 	cp $(LINUX_DIR)/arch/arm/boot/uImage $(KDIR)/uImage
 endef
@@ -20,10 +22,17 @@ define Image/Build
 	$(call Image/Build/$(1),$(1))
 endef
 
+define Image/Build/jffs2-128k
+	( \
+		dd if=$(KDIR)/uImage bs=4096k conv=sync; \
+		dd if=$(KDIR)/root.$(1) bs=128k conv=sync; \
+	) > $(BIN_DIR)/openwrt-$(BOARD)-$(1).img
+endef
+
 define Image/Build/squashfs
 	$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
 	( \
-		dd if=$(KDIR)/uImage bs=1024k conv=sync; \
+		dd if=$(KDIR)/uImage bs=4096k conv=sync; \
 		dd if=$(KDIR)/root.$(1) bs=128k conv=sync; \
 	) > $(BIN_DIR)/openwrt-$(BOARD)-$(1).img
 endef