target/linux/arc770/image/Makefile

   1 #
   2 # Copyright (C) 2016 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
  10 # On ARC initramfs is put before entry point and so entry point moves
  11 # in memory from build to built. Thus we need to extract EP from vmlinux
  12 # every time before generation of uImage.
  13 define Build/calculate-ep
  14         $(eval KERNEL_ENTRY=$(shell $(KERNEL_CROSS)readelf -h $(1) | grep "Entry point address" | grep -o 0x.*))
  15 endef
  16
  17 define Build/build-dtb
  18         $(call Image/BuildDTB,$(DTS_DIR)/$(DEVICE_DTS).dts,$(DTS_DIR)/$(DEVICE_DTS).dtb)
  19 endef
  20
  21 define Build/patch-dtb
  22         $(STAGING_DIR_HOST)/bin/patch-dtb $@ $(DTS_DIR)/$(DEVICE_DTS).dtb
  23 endef
  24
  25 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
  26 # Root FS built-in
  27 define Device/vmlinux
  28         KERNEL_SUFFIX := .elf
  29         KERNEL := kernel-bin | build-dtb | patch-dtb
  30         KERNEL_INITRAMFS_NAME = vmlinux-initramfs.elf
  31 endef
  32
  33 define Device/nsim
  34         $(call Device/vmlinux)
  35         DEVICE_PROFILE := nsim
  36         DEVICE_DTS := nsim_700
  37 endef
  38 TARGET_DEVICES += nsim
  39 endif
  40
  41 # Root FS on SD-card
  42 KERNEL_LOADADDR := 0x80000000
  43 DEVICE_DTS_LIST:= axs101
  44 FAT32_BLOCK_SIZE=1024
  45 FAT32_BLOCKS=$(shell echo $$(($(CONFIG_AXS10X_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
  46
  47 define Image/Build/SDCard
  48         rm -f $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img
  49         mkfs.fat $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img -C $(FAT32_BLOCKS)
  50         mkimage -C none -A arc -T script -d uEnv.txt $(BIN_DIR)/uEnv.scr
  51         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/uEnv.scr ::boot.scr
  52         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(DTS_DIR)/*.dtb ::
  53         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/$(IMG_PREFIX)-uImage ::uImage
  54
  55         ./gen_axs10x_sdcard_img.sh \
  56                 $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img \
  57                 $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img \
  58                 $(KDIR)/root.$(1) \
  59                 $(CONFIG_AXS10X_SD_BOOT_PARTSIZE) \
  60                 $(CONFIG_TARGET_ROOTFS_PARTSIZE)
  61
  62 ifneq ($(CONFIG_TARGET_IMAGES_GZIP),)
  63         gzip -f9n $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img
  64 endif
  65 endef
  66
  67 define Image/BuildKernel
  68         # Build unified uImage
  69         $(call Build/calculate-ep, $(KDIR)/vmlinux.elf)
  70         $(call Image/BuildKernel/MkuImage, \
  71                 none, $(KERNEL_LOADADDR), $(KERNEL_ENTRY), \
  72                 $(KDIR)/vmlinux, \
  73                 $(BIN_DIR)/$(IMG_PREFIX)-uImage \
  74         )
  75
  76         # Build .dtb for all boards we may run on
  77         $(foreach DEVICE_DTS,$(shell echo $(DEVICE_DTS_LIST)), $(call Build/build-dtb))
  78 endef
  79
  80 define Image/Build
  81         $(call Image/Build/$(1),$(1))
  82         $(call Image/Build/SDCard,$(1))
  83         dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
  84 endef
  85
  86 $(eval $(call BuildImage))