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99 lines
2.5 KiB
Makefile
99 lines
2.5 KiB
Makefile
#
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# Copyright (C) 2012-2015 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 $(INCLUDE_DIR)/host.mk
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FAT32_BLOCK_SIZE=1024
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FAT32_BLOCKS=$(shell echo $$(($(CONFIG_BRCM2708_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
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ifneq ($(CONFIG_TARGET_IMAGES_GZIP),)
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define Image/gzip
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gzip -9n -c $(1) > $(1).gz
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mv $(1).gz $(BIN_DIR)
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endef
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else
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define Image/gzip
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endef
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endif
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define Image/Prepare
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rm -rf $(KDIR)/overlays
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mkdir -p $(KDIR)/overlays
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$(CP) $(DTS_DIR)/overlays/*.dtb $(KDIR)/overlays/
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endef
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### Image scripts ###
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define Build/gen-cfg
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cat config.txt > $@.config
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echo -e "\ndevice_tree=$(DEVICE_DTS).dtb" >> $@.config
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endef
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define Build/boot-img
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rm -f $@.boot
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mkfs.fat -C $@.boot $(FAT32_BLOCKS)
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mcopy -i $@.boot $(KDIR)/bootcode.bin ::
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mcopy -i $@.boot $(KDIR)/COPYING.linux ::
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mcopy -i $@.boot $(KDIR)/LICENCE.broadcom ::
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mcopy -i $@.boot $(KDIR)/start.elf ::
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mcopy -i $@.boot $(KDIR)/start_cd.elf ::
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mcopy -i $@.boot $(KDIR)/fixup.dat ::
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mcopy -i $@.boot $(KDIR)/fixup_cd.dat ::
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mcopy -i $@.boot cmdline.txt ::
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mcopy -i $@.boot $@.config ::config.txt
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mcopy -i $@.boot $(word 1,$^) ::kernel.img
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mcopy -i $@.boot $(DTS_DIR)/$(DEVICE_DTS).dtb ::$(DEVICE_DTS).dtb
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mcopy -s -i $@.boot $(KDIR)/overlays ::
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endef
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define Build/sdcard-img
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./gen_rpi_sdcard_img.sh $@ $@.boot $(word 2,$^) \
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$(CONFIG_BRCM2708_SD_BOOT_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
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$(call Image/gzip,$@)
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endef
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### Device macros ###
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define Device/Default
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FILESYSTEMS := ext4
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PROFILES = Default $$(DEVICE_PROFILE)
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KERNEL := kernel-bin
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IMAGES := sdcard.bin
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IMAGE/sdcard.bin := gen-cfg | boot-img | sdcard-img
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DEVICE_PROFILE :=
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DEVICE_DTS :=
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endef
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DEVICE_VARS += DEVICE_PROFILE DEVICE_DTS
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# $(1) = profile
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# $(2) = image name
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# $(3) = dts
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define add_bcm2708
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define Device/$(2)
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DEVICE_PROFILE := $(1)
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DEVICE_DTS := $(3)
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endef
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TARGET_DEVICES += $(2)
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endef
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### BCM2708/BCM2835 ###
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ifeq ($(SUBTARGET),bcm2708)
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# Raspberry Pi Model B
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$(eval $(call add_bcm2708,RaspberryPi_B,rpi-b,bcm2708-rpi-b))
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# Raspberry Pi Model B+
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$(eval $(call add_bcm2708,RaspberryPi_BPlus,rpi-b-plus,bcm2708-rpi-b-plus))
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# Raspberry Pi Compute Module
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$(eval $(call add_bcm2708,RaspberryPi_CM,rpi-cm,bcm2708-rpi-cm))
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endif
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### BCM2709/BCM2836 ###
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ifeq ($(SUBTARGET),bcm2709)
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# Raspberry Pi 2 Model B
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$(eval $(call add_bcm2708,RaspberryPi_2,rpi-2-b,bcm2709-rpi-2-b))
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endif
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$(eval $(call BuildImage))
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