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#
# Copyright (C) 2016 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk
# On ARC initramfs is put before entry point and so entry point moves
# in memory from build to built. Thus we need to extract EP from vmlinux
# every time before generation of uImage.
define Build/calculate-ep
$(eval KERNEL_ENTRY=$(shell $(KERNEL_CROSS)readelf -h $(1) | grep "Entry point address" | grep -o 0x.*))
endef
define Build/patch-dtb
$(STAGING_DIR_HOST)/bin/patch-dtb $@ $(DTS_DIR)/$(DEVICE_DTS).dtb
endef
ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
# Root FS built-in
define Device/vmlinux
KERNEL_SUFFIX := .elf
KERNEL := kernel-bin | patch-dtb
KERNEL_INITRAMFS_NAME = vmlinux-initramfs.elf
endef
define Device/nsim_hs
$(call Device/vmlinux)
DEVICE_PROFILE := nsim_hs
DEVICE_DTS := nsim_hs_idu
endef
TARGET_DEVICES += nsim_hs
endif
# Root FS on SD-card
KERNEL_LOADADDR := 0x80000000
DEVICE_DTS_LIST:= axs103_idu nsim_hs_idu
FAT32_BLOCK_SIZE=1024
FAT32_BLOCKS=$(shell echo $$(($(CONFIG_AXS10X_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
define Image/Build/SDCard
rm -f $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img
mkfs.fat $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img -C $(FAT32_BLOCKS)
mkimage -C none -A arc -T script -d uEnv.txt $(BIN_DIR)/uEnv.scr
mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/uEnv.scr ::boot.scr
mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(DTS_DIR)/*.dtb ::
mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/$(IMG_PREFIX)-uImage ::uImage
./gen_axs10x_sdcard_img.sh \
$(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img \
$(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img \
$(KDIR)/root.$(1) \
$(CONFIG_AXS10X_SD_BOOT_PARTSIZE) \
$(CONFIG_TARGET_ROOTFS_PARTSIZE)
ifneq ($(CONFIG_TARGET_IMAGES_GZIP),)
gzip -f9n $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img
endif
endef
define Image/BuildKernel
# Build unified uImage
$(call Build/calculate-ep, $(KDIR)/vmlinux.elf)
$(call Image/BuildKernel/MkuImage, \
none, $(KERNEL_LOADADDR), $(KERNEL_ENTRY), \
$(KDIR)/vmlinux, \
$(BIN_DIR)/$(IMG_PREFIX)-uImage \
)
# Build .dtb for all boards we may run on
$(foreach dts,$(DEVICE_DTS_LIST),
$(call Image/BuildDTB,$(DTS_DIR)/$(dts).dts,$(DTS_DIR)/$(dts).dtb)
)
endef
define Image/Build
$(call Image/Build/$(1),$(1))
$(call Image/Build/SDCard,$(1))
dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
endef
$(eval $(call BuildImage))
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