target/linux/arc770/image/Makefile

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # Copyright (C) 2016 OpenWrt.org
   4
   5 include $(TOPDIR)/rules.mk
   6 include $(INCLUDE_DIR)/image.mk
   7
   8 # On ARC initramfs is put before entry point and so entry point moves
   9 # in memory from build to built. Thus we need to extract EP from vmlinux
  10 # every time before generation of uImage.
  11 kernel_ep = `$(KERNEL_CROSS)readelf -h $(1) | grep "Entry point address" | grep -o 0x.*`
  12
  13 define Build/patch-dtb
  14         $(STAGING_DIR_HOST)/bin/patch-dtb $@ $(DTS_DIR)/$(DEVICE_DTS).dtb
  15 endef
  16
  17 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
  18 # Root FS built-in
  19 define Device/vmlinux
  20         KERNEL_SUFFIX := .elf
  21         KERNEL := kernel-bin | patch-dtb
  22         KERNEL_INITRAMFS_NAME = vmlinux-initramfs.elf
  23 endef
  24
  25 define Device/nsim
  26         $(call Device/vmlinux)
  27         DEVICE_PROFILE := nsim
  28         DEVICE_DTS := nsim_700
  29 endef
  30 TARGET_DEVICES += nsim
  31 endif
  32
  33 # Root FS on SD-card
  34 KERNEL_LOADADDR := 0x80000000
  35 DEVICE_DTS_LIST:= axs101 nsim_700
  36 FAT32_BLOCK_SIZE=1024
  37 FAT32_BLOCKS=$(shell echo $$(($(CONFIG_AXS10X_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
  38
  39 define Image/Prepare
  40         # Build .dtb for all boards we may run on
  41         $(foreach dts,$(DEVICE_DTS_LIST),
  42                 $(call Image/BuildDTB,$(DTS_DIR)/$(dts).dts,$(DTS_DIR)/$(dts).dtb)
  43         )
  44 endef
  45
  46 define Image/Build/SDCard
  47         rm -f $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img
  48         mkfs.fat $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img -C $(FAT32_BLOCKS)
  49         mkimage -C none -A arc -T script -d uEnv.txt $(BIN_DIR)/uEnv.scr
  50         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/uEnv.scr ::boot.scr
  51         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(DTS_DIR)/*.dtb ::
  52         mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/$(IMG_PREFIX)-uImage ::uImage
  53
  54         ./gen_axs10x_sdcard_img.sh \
  55                 $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img \
  56                 $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img \
  57                 $(KDIR)/root.$(1) \
  58                 $(CONFIG_AXS10X_SD_BOOT_PARTSIZE) \
  59                 $(CONFIG_TARGET_ROOTFS_PARTSIZE)
  60
  61 ifneq ($(CONFIG_TARGET_IMAGES_GZIP),)
  62         gzip -f9n $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img
  63 endif
  64 endef
  65
  66 define Image/BuildKernel
  67         # Build unified uImage
  68         $(call Image/BuildKernel/MkuImage, \
  69                 none, $(KERNEL_LOADADDR),$(call kernel_ep,$(KDIR)/vmlinux.elf) , \
  70                 $(KDIR)/vmlinux, \
  71                 $(BIN_DIR)/$(IMG_PREFIX)-uImage \
  72         )
  73 endef
  74
  75 define Image/Build
  76         $(call Image/Build/$(1),$(1))
  77         $(call Image/Build/SDCard,$(1))
  78         dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
  79         $(call Image/Gzip,$(BIN_DIR)/$(IMG_PREFIX)-root.$(1))
  80 endef
  81
  82 $(eval $(call BuildImage))