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#
# Copyright (C) 2010 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
JFFS2_BLOCKSIZE:=64k
include $(INCLUDE_DIR)/image.mk
INITRAMFS_SUFFIX:=
ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
INITRAMFS_SUFFIX:=-initramfs
endif
define zimage_name
$(IMG_PREFIX)-$(1)-zImage$(INITRAMFS_SUFFIX)
endef
define uimage_name
$(IMG_PREFIX)-$(1)-uImage$(INITRAMFS_SUFFIX)
endef
define imgname
$(BIN_DIR)/$(IMG_PREFIX)-$(2)-$(patsubst jffs2-%,jffs2,$(patsubst squashfs-%,squashfs,$(1)))
endef
define rootfsname
$(BIN_DIR)/$(IMG_PREFIX)-$(2)-root.$(patsubst jffs2-%,jffs2,$(patsubst squashfs-%,squashfs,$(1)))
endef
define build_squashfs
dd if=$(KDIR)/root.squashfs of=$(KDIR)/root.squashfs-$(1) bs=$(1) conv=sync
$(call add_jffs2_mark,$(KDIR)/root.squashfs-$(1))
dd if=$(KDIR)/root.squashfs-$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.squashfs-$(1) bs=$(1) conv=sync
endef
define prepare_zimage
echo -en "\x$(2)\x1c\xa0\xe3\x$(3)\x10\x81\xe3" > $(KDIR)/$(call zimage_name,$(1))
cat $(LINUX_DIR)/arch/arm/boot/zImage >> $(KDIR)/$(call zimage_name,$(1))
endef
define prepare_uimage
$(call prepare_zimage,$(1),$(2),$(3))
mkimage -A arm -O linux -T kernel -a 0x100000 -e 0x100000 -C none \
-n 'OpenWrt Linux-$(LINUX_VERSION)' \
-d $(KDIR)/$(call zimage_name,$(1)) \
$(KDIR)/$(call uimage_name,$(1))
endef
define Image/Prepare
# NSB3AST : mach id 2917 (0xb65)
$(call prepare_zimage,nsb3ast,0b,65)
# NS-K330 : mach id 3108 (0xc24)
$(call prepare_uimage,ns-k330,0c,24)
endef
define Image/BuildKernel
cat $(KDIR)/$(call zimage_name,nsb3ast) > $(BIN_DIR)/$(call zimage_name,nsb3ast)
cat $(KDIR)/$(call zimage_name,ns-k330) > $(BIN_DIR)/$(call zimage_name,ns-k330)
cat $(KDIR)/$(call uimage_name,ns-k330) > $(BIN_DIR)/$(call uimage_name,ns-k330)
endef
define Image/Build/Generic
if [ `stat -c%s "$(KDIR)/$(call zimage_name,$(2))"` -gt 1048576 ]; then \
echo "Warning: $(KDIR)/$(call zimage_name,$(2)) is too big" >&2; \
else if [ `stat -c%s $(KDIR)/root.$(1)` -gt $(3) ]; then \
echo "Warning: of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) is too big" >&2; \
else \
cat $(KDIR)/root.$(1) > $(call rootfsname,$(1),$(2)); \
( \
dd if=$(KDIR)/$(call zimage_name,$(2)) bs=1024k conv=sync; \
dd if=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) \
) > $(call imgname,$(1),$(2)).img; \
fi; fi
endef
define Image/Build/uImage
if [ `stat -c%s "$(KDIR)/$(call uimage_name,$(2))"` -gt 1048576 ]; then \
echo "Warning: $(KDIR)/$(call uimage_name,$(2)) is too big" >&2; \
else if [ `stat -c%s $(KDIR)/root.$(1)` -gt $(3) ]; then \
echo "Warning: of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) is too big" >&2; \
else \
cat $(KDIR)/root.$(1) > $(call rootfsname,$(1),$(2)); \
( \
dd if=$(KDIR)/$(call uimage_name,$(2)) bs=1024k conv=sync; \
dd if=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) \
) > $(call imgname,$(1),$(2))-uImage.img; \
fi; fi
endef
define Image/Build/NSB3AST
$(call Image/Build/Generic,$(1),nsb3ast,7077888)
endef
define Image/Build/NSK330
$(call Image/Build/Generic,$(1),ns-k330,2686976)
$(call Image/Build/uImage,$(1),ns-k330,2686976)
endef
define Image/Build/squashfs
$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
$(call build_squashfs,64k)
$(call Image/Build/NSB3AST,squashfs-64k)
$(call Image/Build/NSK330,squashfs-64k)
endef
define Image/Build/jffs2-64k
dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=64k conv=sync
endef
define Image/Build
$(call Image/Build/$(1),$(1))
endef
$(eval $(call BuildImage))
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