target/linux/brcm2708/image/Makefile

   1 #
   2 # Copyright (C) 2012-2015 OpenWrt.org
   3 # Copyright (C) 2016 LEDE project
   4 #
   5 # This is free software, licensed under the GNU General Public License v2.
   6 # See /LICENSE for more information.
   7 #
   8 include $(TOPDIR)/rules.mk
   9 include $(INCLUDE_DIR)/image.mk
  10 include $(INCLUDE_DIR)/host.mk
  11
  12 FAT32_BLOCK_SIZE=1024
  13 FAT32_BLOCKS=$(shell echo $$(($(CONFIG_BRCM2708_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
  14
  15 ### Image scripts ###
  16 define Build/kernel-img
  17         perl $(LINUX_DIR)/scripts/mkknlimg $@ $@.tmp
  18         mv $@.tmp $@
  19 endef
  20
  21 define Build/boot-img
  22         rm -f $@.boot
  23         mkfs.fat -C $@.boot $(FAT32_BLOCKS)
  24         mcopy -i $@.boot $(LINUX_DIR)/COPYING ::COPYING.linux
  25         mcopy -i $@.boot $(KDIR)/bootcode.bin ::
  26         mcopy -i $@.boot $(KDIR)/LICENCE.broadcom ::
  27         mcopy -i $@.boot $(KDIR)/start.elf ::
  28         mcopy -i $@.boot $(KDIR)/start_cd.elf ::
  29         mcopy -i $@.boot $(KDIR)/fixup.dat ::
  30         mcopy -i $@.boot $(KDIR)/fixup_cd.dat ::
  31         mcopy -i $@.boot cmdline.txt ::
  32         mcopy -i $@.boot config.txt ::
  33         mcopy -i $@.boot $(word 1,$^) ::kernel.img
  34         $(foreach dts,$(shell echo $(DEVICE_DTS)),mcopy -i $@.boot $(DTS_DIR)/$(dts).dtb ::;)
  35         mmd -i $@.boot ::/overlays
  36         mcopy -i $@.boot $(DTS_DIR)/overlays/*.dtbo ::/overlays/
  37         mcopy -i $@.boot $(DTS_DIR)/overlays/README ::/overlays/
  38 endef
  39
  40 define Build/sdcard-img
  41         ./gen_rpi_sdcard_img.sh $@ $@.boot $(word 2,$^) \
  42                 $(CONFIG_BRCM2708_SD_BOOT_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
  43         $(if $(CONFIG_TARGET_IMAGES_GZIP),gzip -9n -c $@ > $(BIN_DIR)/$(notdir $@).gz)
  44 endef
  45
  46 ### Device macros ###
  47 define Device/Default
  48   FILESYSTEMS := ext4
  49   PROFILES = Default $$(DEVICE_PROFILE)
  50   KERNEL := kernel-bin | kernel-img
  51   IMAGES := sdcard.img
  52   IMAGE/sdcard.img := boot-img | sdcard-img
  53   DEVICE_PROFILE :=
  54   DEVICE_DTS :=
  55 endef
  56 DEVICE_VARS += DEVICE_PROFILE DEVICE_DTS
  57
  58 # $(1) = profile
  59 # $(2) = image name
  60 # $(3) = dts
  61 define bcm27xx
  62   define Device/$(2)
  63     DEVICE_PROFILE := $(1)
  64     DEVICE_DTS := $(3)
  65   endef
  66   TARGET_DEVICES += $(2)
  67 endef
  68
  69 ### BCM2708/BCM2835 ###
  70 ifeq ($(SUBTARGET),bcm2708)
  71   # Raspberry Pi Models B/B+/CM
  72   $(eval $(call bcm27xx,RaspberryPi,rpi,bcm2708-rpi-b bcm2708-rpi-b-plus bcm2708-rpi-cm))
  73 endif
  74
  75 ### BCM2709/BCM2836 ###
  76 ifeq ($(SUBTARGET),bcm2709)
  77   # Raspberry Pi 2 Model B
  78   $(eval $(call bcm27xx,RaspberryPi_2,rpi-2,bcm2709-rpi-2-b))
  79 endif
  80
  81 ### BCM2710/BCM2837 ###
  82 ifeq ($(SUBTARGET),bcm2710)
  83   # Raspberry Pi 3 Model B
  84   $(eval $(call bcm27xx,RaspberryPi_3,rpi-3,bcm2710-rpi-3-b))
  85 endif
  86
  87 $(eval $(call BuildImage))