target/linux/rockchip/image/Makefile

   1 #
   2 # This is free software, licensed under the GNU General Public License v2.
   3 # See /LICENSE for more information.
   4 #
   5 include $(TOPDIR)/rules.mk
   6 include $(INCLUDE_DIR)/image.mk
   7
   8 DEVICE_VARS += UBOOT_DEVICE_NAME
   9
  10 define Build/Compile
  11         $(CP) $(LINUX_DIR)/COPYING $(KDIR)/COPYING.linux
  12 endef
  13
  14 ### Image scripts ###
  15 define Build/boot-common
  16         # This creates a new folder copies the dtb (as rockchip.dtb)
  17         # and the kernel image (as kernel.img)
  18         rm -fR $@.boot
  19         mkdir -p $@.boot
  20
  21         $(CP) $(DTS_DIR)/$(DEVICE_DTS).dtb $@.boot/rockchip.dtb
  22         $(CP) $(IMAGE_KERNEL) $@.boot/kernel.img
  23 endef
  24
  25 define Build/boot-script
  26         # Make an U-boot image and copy it to the boot partition
  27         mkimage -A arm -O linux -T script -C none -a 0 -e 0 -d $(if $(1),$(1),mmc).bootscript $@.boot/boot.scr
  28 endef
  29
  30 define Build/pine64-img
  31         # Creates the final SD/eMMC images,
  32         # combining boot partition, root partition as well as the u-boot bootloader
  33
  34         # Generate a new partition table in $@ with 32 MiB of
  35         # alignment padding for the idbloader and u-boot to fit:
  36         # http://opensource.rock-chips.com/wiki_Boot_option#Boot_flow
  37         #
  38         # U-Boot SPL expects the U-Boot ITB to be located at sector 0x4000 (8 MiB) on the MMC storage
  39         $(SCRIPT_DIR)/gen_image_generic.sh \
  40                 $@ \
  41                 $(CONFIG_TARGET_KERNEL_PARTSIZE) $@.boot \
  42                 $(CONFIG_TARGET_ROOTFS_PARTSIZE) $(IMAGE_ROOTFS) \
  43                 32768
  44
  45         # Copy the idbloader and the u-boot image to the image at sector 0x40 and 0x4000
  46         dd if="$(STAGING_DIR_IMAGE)"/$(UBOOT_DEVICE_NAME)-idbloader.img of="$@" seek=64 conv=notrunc
  47         dd if="$(STAGING_DIR_IMAGE)"/$(UBOOT_DEVICE_NAME)-u-boot.itb of="$@" seek=16384 conv=notrunc
  48 endef
  49
  50 ### Devices ###
  51 define Device/Default
  52   PROFILES := Default
  53   KERNEL := kernel-bin
  54   IMAGES := sysupgrade.img.gz
  55   DEVICE_DTS = rockchip/$$(SOC)-$(lastword $(subst _, ,$(1)))
  56 endef
  57
  58 include $(SUBTARGET).mk
  59
  60 $(eval $(call BuildImage))