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openwrt/target/linux/mvebu/image/Makefile
Robert Marko ada2753d6a mvebu: cortexa53: uDPU/eDPU convert to dual firmware (A/B) 
Methode uDPU and eDPU devices are one of the rare ones with a completely
custom image format being used with custom partition table with F2FS.

Instead of converting the boards to dual firmware (A/B style) and further
expand the already convoluted custom scripts, especially considering that
dual firmware conversion is a breaking change anyway, lets convert to using
the generic eMMC sysupgrade based images.

F2FS ZSTD compression is preserved thanks to fstools now supporting its use
on overlays.

Dual firmware support is implemented via U-Boot scripts so no U-Boot
upgrade is required.

Since there is a partition table layout change, eMMC must be wiped and
reflashed with the generated GPT image from OpenWrt initramfs.

Then on each sysupgrade the firmware slot will be altered.

Instructions:
1. Boot into OpenWrt initramfs
2. Copy openwrt-mvebu-cortexa53-methode_edpu-squashfs-emmc-gpt.img.gz to
the device into /tmp
3. Erase eMMC:
dd if=/dev/zero of=/dev/mmcblk0 bs=1M
4. Extract image
gzip -d /tmp/openwrt-mvebu-cortexa53-methode_edpu-squashfs-emmc-gpt.img.gz
5. Flash image
dd if=/tmp/openwrt-mvebu-cortexa53-methode_edpu-squashfs-emmc-gpt.img of=/dev/mmcblk0
6. Reboot

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
2026-05-26 19:35:42 +02:00

188 lines
5.6 KiB
Makefile
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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2012-2016 OpenWrt.org
# Copyright (C) 2016 LEDE-project.org
JFFS2_BLOCKSIZE = 128k
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk
DEVICE_VARS += BOOT_SCRIPT UBOOT
KERNEL_LOADADDR := 0x00008000
define Build/boot-scr
rm -f $@-boot.scr
sed \
-e 's#@ROOT@#$(if $(1),$(1),$(IMG_PART_SIGNATURE))#g' \
-e 's#@DTB@#$(firstword $(DEVICE_DTS))#g' \
$(BOOT_SCRIPT).bootscript > $@-new.bootscript
mkimage -A arm -O linux -T script -C none -a 0 -e 0 -d $@-new.bootscript $@-boot.scr
endef
define Build/boot-img
rm -f $@.boot
mkfs.fat -C $@.boot $$(( $(CONFIG_TARGET_KERNEL_PARTSIZE) * 1024 ))
$(foreach dts,$(DEVICE_DTS), mcopy -i $@.boot $(KDIR)/image-$(dts).dtb ::$(dts).dtb;)
mcopy -i $@.boot $(IMAGE_KERNEL) ::$(KERNEL_NAME)
-mcopy -i $@.boot $@-boot.scr ::boot.scr
endef
define Build/boot-img-ext4
rm -fR $@.boot
mkdir -p $@.boot
$(foreach dts,$(DEVICE_DTS), $(CP) $(KDIR)/image-$(dts).dtb $@.boot/$(dts).dtb;)
$(CP) $(IMAGE_KERNEL) $@.boot/$(KERNEL_NAME)
-$(CP) $@-boot.scr $@.boot/boot.scr
make_ext4fs -J -L kernel -l $(CONFIG_TARGET_KERNEL_PARTSIZE)M \
$(if $(SOURCE_DATE_EPOCH),-T $(SOURCE_DATE_EPOCH)) \
$@.bootimg $@.boot
endef
define Build/buffalo-kernel-jffs2
rm -rf $(KDIR)/kernel_jffs2 $@.fakerd
mkdir -p $(KDIR)/kernel_jffs2
dd if=/dev/zero of=$@.fakerd bs=131008 count=1 conv=sync
$(STAGING_DIR_HOST)/bin/mkimage \
-T ramdisk -A $(LINUX_KARCH) -O linux -C gzip -n 'fake initrd' \
-d $@.fakerd $(KDIR)/kernel_jffs2/initrd.buffalo
cp $@ $(KDIR)/kernel_jffs2/uImage.buffalo
$(STAGING_DIR_HOST)/bin/mkfs.jffs2 \
--little-endian -v --squash-uids -q -f -n -x lzma -x rtime -m none \
--eraseblock=128KiB --pad=$(KERNEL_SIZE) -d $(KDIR)/kernel_jffs2 -o $@
rm -rf $(KDIR)/kernel_jffs2 $@.fakerd
endef
define Build/buffalo-kernel-ubifs
rm -rf $@-ubidir
mkdir -p $@-ubidir
mv $@ $@-ubidir/uImage.buffalo
touch $@
$(call Build/append-uImage-fakehdr, ramdisk)
mv $@ $@-ubidir/initrd.buffalo
$(STAGING_DIR_HOST)/bin/mkfs.ubifs $(KERNEL_UBIFS_OPTS) -r $@-ubidir $@
endef
# Some info about Ctera firmware:
# 1. It's simple tar file (GNU standard), but it must have ".firm" suffix.
# 2. It contains two images: kernel and romdisk. Both are required.
# 3. Every image has header and trailer file.
# 4. The struct of tar firmware is: header kernel trailer header romdisk trailer
# 5. In header file are some strings used to describe image. It was decoded from
# factory image.
# 6. Version format in header file is restricted by Original FW.
# 7. Trailer file contains MD5 sum string of header and image file.
# 8. Firmware file must have <=24MB size.
define Build/ctera-firmware
mkdir -p $@.tmp
# Prepare header and trailer file for kernel
echo "# CTera firmware information file" > $@.tmp/header
echo "image_type=kernel" >> $@.tmp/header
echo "arch=ARM" >> $@.tmp/header
echo "board=2Drive_A" >> $@.tmp/header
echo "version=5.5.165.61499" >> $@.tmp/header
echo "kernel_cmd=console=ttyS0,115200 earlycon" >> $@.tmp/header
echo "date=$$(date $(if $(SOURCE_DATE_EPOCH),-d@$(SOURCE_DATE_EPOCH)))" \
>> $@.tmp/header
cp $@ $@.tmp/kernel
echo "MD5=$$(cat $@.tmp/header $@.tmp/kernel | $(MKHASH) md5)" \
> $@.tmp/trailer
tar $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
-H gnu -C $@.tmp -cf $@.tar header kernel trailer
# Prepare header and trailer file for fake romdisk
echo "# CTera firmware information file" > $@.tmp/header
echo "image_type=romdisk" >> $@.tmp/header
echo "initrd=yes" >> $@.tmp/header
echo "arch=ARM" >> $@.tmp/header
echo "board=2Drive_A" >> $@.tmp/header
echo "version=5.5.165.61499" >> $@.tmp/header
echo "date=$$(date $(if $(SOURCE_DATE_EPOCH),-d@$(SOURCE_DATE_EPOCH)))" \
>> $@.tmp/header
rm -f $@
touch $@
$(call Build/append-uImage-fakehdr, ramdisk)
cp $@ $@.tmp/romdisk
echo "MD5=$$(cat $@.tmp/header $@.tmp/romdisk | $(MKHASH) md5)" \
> $@.tmp/trailer
tar $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
-H gnu -C $@.tmp -rf $@.tar header romdisk trailer
mv $@.tar $@
rm -rf $@.tmp
endef
define Build/sdcard-img
SIGNATURE="$(IMG_PART_SIGNATURE)" \
./gen_mvebu_sdcard_img.sh $@ \
$(if $(UBOOT),$(STAGING_DIR_IMAGE)/$(UBOOT)) \
c $(CONFIG_TARGET_KERNEL_PARTSIZE) $@.boot \
83 $(CONFIG_TARGET_ROOTFS_PARTSIZE) $(IMAGE_ROOTFS)
endef
define Build/sdcard-img-ext4
SIGNATURE="$(IMG_PART_SIGNATURE)" \
./gen_mvebu_sdcard_img.sh $@ \
$(if $(UBOOT),$(STAGING_DIR_IMAGE)/$(UBOOT)) \
83 $(CONFIG_TARGET_KERNEL_PARTSIZE) $@.bootimg \
83 $(CONFIG_TARGET_ROOTFS_PARTSIZE) $(IMAGE_ROOTFS)
endef
define Device/FitImage
KERNEL_SUFFIX := -uImage.itb
KERNEL = kernel-bin | libdeflate-gzip | fit gzip $$(KDIR)/image-$$(DEVICE_DTS).dtb
KERNEL_NAME := Image
endef
define Device/Default
PROFILES := Default
DEVICE_DTS = $$(SOC)-$(lastword $(subst _, ,$(1)))
DEVICE_DTS_DIR := $(DTS_DIR)
BOARD_NAME = $$(DEVICE_DTS)
KERNEL_NAME := zImage
KERNEL := kernel-bin | append-dtb | uImage none
IMAGES := sysupgrade.bin
IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
UBINIZE_OPTS := -E 5
UBOOT :=
BOOT_SCRIPT :=
endef
define Device/Default-arm64
BOOT_SCRIPT := generic-arm64
DEVICE_DTS_DIR := $(DTS_DIR)/marvell
IMAGES := sdcard.img.gz
IMAGE/sdcard.img.gz := boot-scr | boot-img-ext4 | sdcard-img-ext4 | libdeflate-gzip | append-metadata
KERNEL_NAME := Image
KERNEL := kernel-bin
endef
define Device/NAND-128K
BLOCKSIZE := 128k
PAGESIZE := 2048
SUBPAGESIZE := 512
VID_HDR_OFFSET := 2048
endef
define Device/NAND-256K
BLOCKSIZE := 256k
PAGESIZE := 4096
endef
define Device/NAND-512K
BLOCKSIZE := 512k
PAGESIZE := 4096
endef
include $(SUBTARGET).mk
$(eval $(call BuildImage))
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