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git://projects.qi-hardware.com/openwrt-xburst.git
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99f2f68b6f
Read the kernel command line from an otherwise unused area of the kernel image (will be used for changing the command line on the fly when copying the system from CF to NAND) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5296 3c298f89-4303-0410-b956-a3cf2f4a3e73
77 lines
2.3 KiB
Makefile
77 lines
2.3 KiB
Makefile
#
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# Copyright (C) 2006 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/image.mk
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include $(INCLUDE_DIR)/kernel.mk
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LOADADDR = 0x81000000 # RAM start + 16M
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KERNEL_ENTRY = 0x80101000
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RAMSIZE = 0x00100000 # 1MB
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IMAGE_COPY = 1
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LOADER_MAKEOPTS= \
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KDIR=$(KDIR) \
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LOADADDR=$(LOADADDR) \
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KERNEL_ENTRY=$(KERNEL_ENTRY) \
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RAMSIZE=$(RAMSIZE) \
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IMAGE_COPY=$(IMAGE_COPY)
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define Build/Clean
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$(MAKE) -C ../generic/lzma-loader $(LOADER_MAKEOPTS) clean
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endef
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CMDLINE_SIZE=512
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CMDLINE_OFFSET=4112
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define Image/Prepare
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echo 'root=/dev/cfa2 ' | \
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dd bs=$(CMDLINE_SIZE) count=1 conv=sync | \
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dd of=$(LINUX_DIR)/vmlinux bs=$(CMDLINE_OFFSET) conv=notrunc seek=1
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$(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
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endef
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define Image/BuildKernel
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cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
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$(MAKE) -C ../generic/lzma-loader $(LOADER_MAKEOPTS) clean compile
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$(CP) $(KDIR)/loader.elf $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux
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endef
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PARTITION1=\x80\x01\x01\x00\x27\x01\x20\x7b\x20\x00\x00\x00\xe0\x1e\x00\x00# 4 MB (kernel part)
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PARTITION2=\x00\x00\x01\x7c\x83\x01\xa0\x64\x00\x1f\x00\x00\x40\x7a\x00\x00# 16 MB (rootfs part)
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define Image/cmdline/jffs2-64k
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block2mtd.block2mtd=/dev/cfa2,65536 root=/dev/mtdblock0 rootfstype=jffs2
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endef
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define Image/cmdline/jffs2-128k
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block2mtd.block2mtd=/dev/cfa2,131072 root=/dev/mtdblock0 rootfstype=jffs2
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endef
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define Image/cmdline/ext2
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root=/dev/cfa2 rootfstype=ext2
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endef
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define Image/Build
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echo '$(strip $(call Image/cmdline/$(1))) ' | \
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dd bs=$(CMDLINE_SIZE) count=1 conv=sync | \
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dd of=$(LINUX_DIR)/vmlinux bs=$(CMDLINE_OFFSET) conv=notrunc seek=1
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( \
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echo -ne OWRT | dd bs=$$$$((0x1be)) conv=sync; \
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( \
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echo -ne '$(strip $(PARTITION1))'; \
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echo -ne '$(strip $(PARTITION2))'; \
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) | dd bs=$$$$((0x40)) conv=sync; \
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echo -ne '\x55\xaa'; \
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dd if=/dev/zero bs=$$$$((0x3e00)) conv=sync count=1; \
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dd if=$(LINUX_DIR)/vmlinux bs=$$$$((0x3dc000)) conv=sync; \
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cat $(KDIR)/root.$(1); \
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echo -ne '\xde\xad\xc0\xde'; \
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) > $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin
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endef
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$(eval $(call BuildImage))
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