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#
# Copyright (C) 2013-2016 OpenWrt.org
# Copyright (C) 2016 Yousong Zhou
#
# 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

FAT32_BLOCK_SIZE=1024
FAT32_BLOCKS=$(shell echo $$(($(CONFIG_SUNXI_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))

KERNEL_LOADADDR:=0x40008000

define Build/sunxi-sdcard
        rm -f $@.boot
        mkfs.fat $@.boot -C $(FAT32_BLOCKS)

        mcopy -i $@.boot $(STAGING_DIR_IMAGE)/$(DEVICE_NAME)-boot.scr ::boot.scr
        mcopy -i $@.boot $(DTS_DIR)/$(SUNXI_DTS).dtb ::dtb
        mcopy -i $@.boot $(IMAGE_KERNEL) ::uImage
        ./gen_sunxi_sdcard_img.sh $@ \
                $@.boot \
                $(IMAGE_ROOTFS) \
                $(CONFIG_SUNXI_SD_BOOT_PARTSIZE) \
                $(CONFIG_TARGET_ROOTFS_PARTSIZE) \
                $(STAGING_DIR_IMAGE)/$(DEVICE_NAME)-u-boot-with-spl.bin
        rm -f $@.boot
endef

# why \x00\x00\x00\x00 for zImage-initramfs
define Device/Default
  PROFILES := Default
  DEVICE_VARS := SUNXI_DTS SUNXI_UBOOT
  KERNEL_NAME := zImage
  KERNEL := kernel-bin | uImage none
  IMAGES := sdcard.img.gz
  IMAGE/sdcard.img.gz := sunxi-sdcard | append-metadata | gzip
endef

include cortex-a7.mk
include cortex-a8.mk
include cortex-a53.mk

$(eval $(call BuildImage))