Root/target/linux/brcm2708/image/Makefile

1#
2# Copyright (C) 2012 OpenWrt.org
3#
4# This is free software, licensed under the GNU General Public License v2.
5# See /LICENSE for more information.
6#
7include $(TOPDIR)/rules.mk
8include $(INCLUDE_DIR)/image.mk
9include $(INCLUDE_DIR)/host.mk
10
11define Image/Prepare
12    cp $(LINUX_DIR)/arch/arm/boot/Image $(KDIR)/Image
13endef
14
15FAT32_BLOCK_SIZE=1024
16FAT32_BLOCKS=$(shell echo $$(($(CONFIG_BRCM2708_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
17
18define Image/Build/RaspberryPi
19    rm -f $(KDIR)/boot.img
20
21    mkdosfs $(KDIR)/boot.img -C $(FAT32_BLOCKS)
22    # Raspberry Pi has no bootloader, instead the GPU loads and starts the kernel
23    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm128_start.elf ::
24    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm192_start.elf ::
25    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm224_start.elf ::
26    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/bootcode.bin ::
27    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/COPYING.linux ::
28    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/LICENCE.broadcom ::
29    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/loader.bin ::
30    mcopy -i $(KDIR)/boot.img $(BUILD_DIR)/brcm2708-gpu-fw-boot/arm$(2)_start.elf ::start.elf #Copy file for memory/gpu division
31    mcopy -i $(KDIR)/boot.img cmdline.txt ::
32    mcopy -i $(KDIR)/boot.img $(KDIR)/Image ::kernel.img # Copy OpenWrt built kernel
33    ./gen_rpi_sdcard_img.sh $(BIN_DIR)/$(IMG_PREFIX)-sdcard-vfat-$(1)_$(2).img $(KDIR)/boot.img $(KDIR)/root.$(1) \
34        $(CONFIG_BRCM2708_SD_BOOT_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
35endef
36
37define Image/Build
38    $(CP) $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1).img
39    $(CP) $(KDIR)/Image $(BIN_DIR)/$(IMG_PREFIX)-Image
40
41    $(call Image/Build/RaspberryPi,$(1),128)
42    $(call Image/Build/RaspberryPi,$(1),192)
43    $(call Image/Build/RaspberryPi,$(1),224)
44endef
45
46$(eval $(call BuildImage))
47

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