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#
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# Copyright (C) 2012 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)/host.mk
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define Image/Prepare
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cp $(LINUX_DIR)/arch/arm/boot/Image $(KDIR)/Image
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endef
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FAT32_BLOCK_SIZE=1024
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FAT32_BLOCKS=$(shell echo $$(($(CONFIG_BRCM2708_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
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define Image/Build/RaspberryPi
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rm -f $(KDIR)/boot.img
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mkdosfs $(KDIR)/boot.img -C $(FAT32_BLOCKS)
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# Raspberry Pi has no bootloader, instead the GPU loads and starts the kernel
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mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/bootcode.bin ::
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mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/COPYING.linux ::
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mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/LICENCE.broadcom ::
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mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/start.elf ::
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mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/start_cd.elf ::
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mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/fixup.dat ::
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mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/fixup_cd.dat ::
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mcopy -i $(KDIR)/boot.img cmdline.txt ::
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mcopy -i $(KDIR)/boot.img config.txt ::
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mcopy -i $(KDIR)/boot.img $(KDIR)/Image ::kernel.img # Copy OpenWrt built kernel
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./gen_rpi_sdcard_img.sh $(BIN_DIR)/$(IMG_PREFIX)-sdcard-vfat-$(1).img $(KDIR)/boot.img $(KDIR)/root.$(1) \
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$(CONFIG_BRCM2708_SD_BOOT_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
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endef
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define Image/Build
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$(CP) $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1).img
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$(CP) $(KDIR)/Image $(BIN_DIR)/$(IMG_PREFIX)-Image
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$(call Image/Build/RaspberryPi,$(1))
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endef
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$(eval $(call BuildImage))
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