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#
# Copyright (C) 2012-2015 OpenWrt.org
# Copyright (C) 2016-2017 LEDE project
#
# 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 $$(($(CONFIG_BRCM2708_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
define Build/Compile
$(CP) $(LINUX_DIR)/COPYING $(KDIR)/COPYING.linux
endef
### Image scripts ###
define Build/kernel-img
perl $(LINUX_DIR)/scripts/mkknlimg $@ $@.tmp
mv $@.tmp $@
endef
define Build/boot-img
rm -f $@.boot
mkfs.fat -C $@.boot $(FAT32_BLOCKS)
mcopy -i $@.boot $(KDIR)/COPYING.linux ::
mcopy -i $@.boot $(KDIR)/bootcode.bin ::
mcopy -i $@.boot $(KDIR)/LICENCE.broadcom ::
mcopy -i $@.boot $(KDIR)/start.elf ::
mcopy -i $@.boot $(KDIR)/start_cd.elf ::
mcopy -i $@.boot $(KDIR)/fixup.dat ::
mcopy -i $@.boot $(KDIR)/fixup_cd.dat ::
mcopy -i $@.boot cmdline.txt ::
mcopy -i $@.boot config.txt ::
mcopy -i $@.boot $(IMAGE_KERNEL) ::$(KERNEL_IMG)
$(foreach dts,$(shell echo $(DEVICE_DTS)),mcopy -i $@.boot $(DTS_DIR)/$(dts).dtb ::;)
mmd -i $@.boot ::/overlays
mcopy -i $@.boot $(DTS_DIR)/overlays/*.dtbo ::/overlays/
mcopy -i $@.boot $(DTS_DIR)/overlays/README ::/overlays/
endef
define Build/sdcard-img
./gen_rpi_sdcard_img.sh $@ $@.boot $(IMAGE_ROOTFS) \
$(CONFIG_BRCM2708_SD_BOOT_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
endef
### Devices ###
define Device/Default
FILESYSTEMS := ext4
KERNEL := kernel-bin | kernel-img
KERNEL_IMG := kernel.img
IMAGES := sdcard.img.gz
IMAGE/sdcard.img.gz := boot-img | sdcard-img | gzip | append-metadata
endef
define Device/rpi
DEVICE_TITLE := Raspberry Pi B/B+/CM/Zero/ZeroW
DEVICE_DTS := bcm2708-rpi-b bcm2708-rpi-b-plus bcm2708-rpi-cm bcm2708-rpi-0-w
SUPPORTED_DEVICES := rpi-b rpi-b-plus rpi-cm rpi-zero-w
endef
ifeq ($(SUBTARGET),bcm2708)
TARGET_DEVICES += rpi
endif
define Device/rpi-2
DEVICE_TITLE := Raspberry Pi 2B/3B/3CM
DEVICE_DTS := bcm2709-rpi-2-b bcm2710-rpi-3-b bcm2710-rpi-cm3
SUPPORTED_DEVICES := rpi-2-b rpi-3-b rpi-cm
endef
ifeq ($(SUBTARGET),bcm2709)
TARGET_DEVICES += rpi-2
endif
define Device/rpi-3
KERNEL_IMG := kernel8.img
DEVICE_TITLE := Raspberry Pi 3B (64 bit)
DEVICE_DTS := broadcom/bcm2710-rpi-3-b
SUPPORTED_DEVICES := rpi-3-b
endef
ifeq ($(SUBTARGET),bcm2710)
TARGET_DEVICES += rpi-3
endif
$(eval $(call BuildImage))
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