ar71xx: the squashfs-4k images are unreliable in some builds. add 4k, 8k padding to the generic squashfs images and use them on 4k devices as well

SVN-Revision: 18526

include/image.mk

@@ -40,13 +40,17 @@ 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
+# pad to 4k, 8k, 64k, 128k and add jffs2 end-of-filesystem mark
 define prepare_generic_squashfs
-	dd if=$(1) of=$(KDIR)/tmpfile.1 bs=64k conv=sync
+	dd if=$(1) of=$(KDIR)/tmpfile.0 bs=4k conv=sync
+	$(call add_jffs2_mark,$(KDIR)/tmpfile.0)
+	dd if=$(KDIR)/tmpfile.0 of=$(KDIR)/tmpfile.1 bs=4k conv=sync
 	$(call add_jffs2_mark,$(KDIR)/tmpfile.1)
-	dd of=$(1) if=$(KDIR)/tmpfile.1 bs=64k conv=sync
+	dd if=$(KDIR)/tmpfile.1 of=$(KDIR)/tmpfile.2 bs=64k conv=sync
+	$(call add_jffs2_mark,$(KDIR)/tmpfile.2)
+	dd if=$(KDIR)/tmpfile.2 of=$(1) bs=64k conv=sync
 	$(call add_jffs2_mark,$(1))
+	rm -f $(KDIR)/tmpfile.*
 endef
 
 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)

target/linux/ar71xx/image/Makefile

@@ -276,7 +276,7 @@ define Image/Build/Template/TPLINK4K
 endef
 
 define Image/Build/Template/TPLINK4K/squashfs
-	$(call Image/Build/Template/TPLINK,squashfs-4k,$(1),$(2),$(3))
+	$(call Image/Build/Template/TPLINK,squashfs,$(1),$(2),$(3))
 endef
 
 define Image/Build/Template/UBNT
@@ -296,7 +296,7 @@ define Image/Build/Template/UBNTXM
 endef
 
 define Image/Build/Template/UBNTXM/squashfs
-	$(call Image/Build/Template/UBNTXM,squashfs-4k,$(1),$(2),$(3),$(4),$(5))
+	$(call Image/Build/Template/UBNTXM,squashfs,$(1),$(2),$(3),$(4),$(5))
 endef
 
 define Image/Build/Template/UBNTXM/jffs2-64k
@@ -428,8 +428,6 @@ define Image/Build/Profile/Madwifi
 endef
 
 define Image/Build/squashfs
-	dd if=$(KDIR)/root.squashfs of=$(IMGNAME)-root.squashfs-4k bs=4k conv=sync
-	$(call add_jffs2_mark,$(IMGNAME)-root.squashfs-4k)
 	$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
 endef