target/linux/brcm2708/image/Makefile

   1 #
   2 # Copyright (C) 2012 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 include $(TOPDIR)/rules.mk
   8 include $(INCLUDE_DIR)/image.mk
   9 include $(INCLUDE_DIR)/host.mk
  10
  11 define Image/Prepare
  12         cp $(LINUX_DIR)/arch/arm/boot/Image $(KDIR)/Image
  13 endef
  14
  15 FAT32_BLOCK_SIZE=1024
  16 FAT32_BLOCKS=$(shell echo $$(($(CONFIG_BRCM2708_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
  17
  18 define Image/Build/RaspberryPi
  19         rm -f $(KDIR)/boot.img
  20
  21         mkdosfs $(KDIR)/boot.img -C $(FAT32_BLOCKS)
  22         # Raspberry Pi has no bootloader, instead the GPU loads and starts the kernel
  23         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm128_start.elf ::
  24         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm192_start.elf ::
  25         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm224_start.elf ::
  26         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/bootcode.bin ::
  27         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/COPYING.linux ::
  28         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/LICENCE.broadcom ::
  29         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/loader.bin ::
  30         mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm$(2)_start.elf ::start.elf  #Copy file for memory/gpu division
  31         mcopy -i $(KDIR)/boot.img cmdline.txt ::
  32         mcopy -i $(KDIR)/boot.img $(KDIR)/Image ::kernel.img  # Copy OpenWrt built kernel
  33         ./gen_rpi_sdcard_img.sh $(BIN_DIR)/$(IMG_PREFIX)-sdcard-vfat-$(1)_$(2).img $(KDIR)/boot.img $(KDIR)/root.$(1) \
  34                 $(CONFIG_BRCM2708_SD_BOOT_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
  35 endef
  36
  37 define Image/Build
  38         $(CP) $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1).img
  39         $(CP) $(KDIR)/Image $(BIN_DIR)/$(IMG_PREFIX)-Image
  40
  41         $(call Image/Build/RaspberryPi,$(1),128)
  42         $(call Image/Build/RaspberryPi,$(1),192)
  43         $(call Image/Build/RaspberryPi,$(1),224)
  44 endef
  45
  46 $(eval $(call BuildImage))