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openwrt/target/linux/apm821xx/image/Makefile
Christian Lamparter 8a9b0b95df apm821xx: switch MX60(W)'s recovery images to multi-image method 
In the past, the MX60(W)'s recovery images always had problems
with the size restriction and never really worked without manual
intervention. This patch reworks the initramfs, which allows the
device to ease up on the impossible tight kernel size requirements
for the initramfs image.

This new initramfs can be loaded through the MX60(W) U-boot
in the following way:

=> setenv bootargs console=ttyS0,$baudrate
=> tftpboot $meraki_loadaddr meraki_mx60-initramfs-kernel.bin
   [...]
   Load address: 0x800000
    Loading: ################################################ [...]
    done
   [...]

=> bootm $fileaddr
   \## Booting kernel from Legacy Image at 00800000 ...
    ...

For more information and the latest flashing guide:
please visit the OpenWrt Wiki Page for the MX60(W):
<https://openwrt.org/toh/meraki/mx60#flashing>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
(cherry picked from commit 36c19c9f0b)
2019-01-01 18:54:14 +01:00

250 lines
7.4 KiB
Makefile
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#
# 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
DEVICE_VARS += IMAGE_SIZE DTB_SIZE
define Device/Default
PROFILES := Default
KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
DEVICE_DTS :=
KERNEL_ENTRY := 0x00000000
KERNEL_LOADADDR := 0x00000000
DEVICE_DTS_DIR := ../dts
SUPPORTED_DEVICES = $(subst _,$(comma),$(1))
endef
define Build/dtb
$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb,,--space $(DTB_SIZE))
endef
define Build/prepend-dtb
cat "$@.dtb.uimage" "$@" > "$@.new"
mv "$@.new" "$@"
endef
define Build/export-dtb
cp $(IMAGE_KERNEL).dtb $@
endef
ifeq ($(SUBTARGET),nand)
define Image/cpiogz
( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz )
endef
define Build/copy-file
cat "$(1)" > "$@"
endef
define Build/MerakiAdd-dtb
$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb)
( \
dd if=$@.dtb bs=$(DTB_SIZE) conv=sync; \
dd if=$@ bs=$(BLOCKSIZE) conv=sync; \
) > $@.new
@mv $@.new $@
endef
define Build/MerakiAdd-initramfs
$(call Image/cpiogz)
-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T ramdisk \
-C gzip -n "$(PROFILE) rootfs" \
-d $(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz \
$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz
( \
dd if=$@ bs=1k conv=sync; \
dd if=$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz bs=$(BLOCKSIZE) conv=sync; \
) > $@.new
@mv $@.new $@
endef
define Build/MerakiNAND
-$(STAGING_DIR_HOST)/bin/mkmerakifw \
-B $(BOARD_NAME) -s \
-i $@ \
-o $@.new
@cp $@.new $@
endef
define Device/meraki_mr24
DEVICE_TITLE := Cisco Meraki MR24
DEVICE_PACKAGES := kmod-spi-gpio -swconfig
BOARD_NAME := mr24
DEVICE_DTS := meraki-mr24
BLOCKSIZE := 63k
IMAGES := sysupgrade.tar
DTB_SIZE := 64512
IMAGE_SIZE := 8191k
KERNEL := kernel-bin | lzma | uImage lzma | MerakiAdd-dtb | MerakiNAND
KERNEL_INITRAMFS := kernel-bin | lzma | dtb | MuImage-initramfs lzma
IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
UBINIZE_OPTS := -E 5
SUPPORTED_DEVICES += mr24
endef
TARGET_DEVICES += meraki_mr24
define Device/meraki_mx60
DEVICE_TITLE := Cisco Meraki MX60/MX60W
DEVICE_PACKAGES := kmod-spi-gpio kmod-usb-ledtrig-usbport kmod-usb-dwc2 \
kmod-usb-storage block-mount
BOARD_NAME := mx60
DEVICE_DTS := meraki-mx60
BLOCKSIZE := 63k
IMAGES := sysupgrade.tar
DTB_SIZE := 64512
# The kernel size will need to match the offset defined in mkmerakifw.c,
# otherwise the final image will fail to boot. This is set within the
# MX60 kernel header definition which is found at
# ./tools/firmware-utils/src/mkmerakifw.c, line 103~
KERNEL_SIZE := 4031k
IMAGE_SIZE := 1021m
KERNEL := kernel-bin | gzip | uImage gzip | MerakiAdd-dtb | MerakiNAND
KERNEL_INITRAMFS := kernel-bin | gzip | dtb | MuImage-initramfs gzip
IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
UBINIZE_OPTS := -E 5
SUPPORTED_DEVICES += mx60
endef
TARGET_DEVICES += meraki_mx60
define Build/create-uImage-dtb
# flat_dt target expect FIT image - which WNDR4700's uboot doesn't support
-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) \
-O linux -T kernel -C none \
-n '$(call toupper,$(LINUX_KARCH)) $(VERSION_DIST) Linux-$(LINUX_VERSION)' \
-d "$@.dtb" "$@.dtb.uimage"
endef
define Build/MuImage-initramfs
rm -rf $@.fakerd $@.new
dd if=/dev/zero of=$@.fakerd bs=32 count=1 conv=sync
# Netgear used an old uboot that doesn't have FIT support.
# So we are stuck with either a full ext2/4 fs in a initrd.
# ... or we try to make the "multi" image approach to work
# for us.
#
# Sadly, the "multi" image has to consists of three
# "fixed" parts in the following "fixed" order:
# 1. The kernel which is in $@
# 2. The (fake) initrd which is in $@.fakerd
# 3. The device tree binary which is in $@.dtb
#
# Now, given that we use the function for the kernel which
# already has a initramfs image inside, we still have to
# add a "fake" initrd (which a mkimage header) in the second
# part of the legacy multi image. Since we need to put the
# device tree stuff into part 3.
-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T multi \
-C $(1) -a $(KERNEL_LOADADDR) -e $(KERNEL_ENTRY) \
-n '$(BOARD_NAME) initramfs' -d $@:$@.fakerd:$@.dtb $@.new
mv $@.new $@
rm -rf $@.fakerd
endef
define Device/netgear_wndr4700
DEVICE_TITLE := Netgear Centria N900 WNDR4700/WNDR4720
DEVICE_PACKAGES := badblocks block-mount e2fsprogs \
kmod-dm kmod-fs-ext4 kmod-fs-vfat kmod-usb-ledtrig-usbport \
kmod-md-mod kmod-nls-cp437 kmod-nls-iso8859-1 kmod-nls-iso8859-15 \
kmod-nls-utf8 kmod-usb3 kmod-usb-dwc2 kmod-usb-storage \
partx-utils
BOARD_NAME := wndr4700
DEVICE_DTS := netgear-wndr4700
PAGESIZE := 2048
SUBPAGESIZE := 512
BLOCKSIZE := 128k
DTB_SIZE := 131008
IMAGE_SIZE := 24960k
IMAGES := factory.img sysupgrade.tar kernel.dtb
KERNEL_SIZE := 3584k
# append a fake/empty rootfs to fool netgear's uboot
# CHECK_DNI_FIRMWARE_ROOTFS_INTEGRITY in do_chk_dniimg()
KERNEL := kernel-bin | lzma | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | \
append-uImage-fakehdr filesystem | dtb | create-uImage-dtb | prepend-dtb
KERNEL_INITRAMFS := kernel-bin | gzip | dtb | MuImage-initramfs gzip
IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \
netgear-dni | check-size $$$$(IMAGE_SIZE)
IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
IMAGE/kernel.dtb := export-dtb | uImage none
NETGEAR_BOARD_ID := WNDR4700
NETGEAR_HW_ID := 29763875+128+256
UBINIZE_OPTS := -E 5
SUPPORTED_DEVICES += wndr4700
endef
TARGET_DEVICES += netgear_wndr4700
endif
ifeq ($(SUBTARGET),sata)
### Image scripts for the WD My Book Live Series ###
define Build/boot-script
$(STAGING_DIR_HOST)/bin/mkimage -A powerpc -T script -C none -n "$(PROFILE) Boot Script" \
-d mbl_boot.scr \
$@.scr
endef
define Build/boot-img
$(RM) -rf $@.bootdir
mkdir -p $@.bootdir/boot
$(CP) $@.scr $@.bootdir/boot/boot.scr
$(CP) $(IMAGE_KERNEL).dtb $@.bootdir/boot/$(DEVICE_DTB)
$(CP) $(IMAGE_KERNEL) $@.bootdir/boot/uImage
genext2fs --block-size $(BLOCKSIZE:%k=%Ki) --size-in-blocks $$((1024 * $(BOOT_SIZE))) --root $@.bootdir $@.boot
# convert it to revision 1 - needed for u-boot ext2load
$(STAGING_DIR_HOST)/bin/tune2fs -O filetype $@.boot
$(STAGING_DIR_HOST)/bin/e2fsck -pDf $@.boot > /dev/null
endef
define Build/hdd-img
./mbl_gen_hdd_img.sh $@ $@.boot $(IMAGE_ROOTFS)
endef
define Device/MyBookLiveDefault
IMAGE_SIZE := 48m
BLOCKSIZE := 1k
DTB_SIZE := 16384
KERNEL := kernel-bin | dtb | gzip | uImage gzip
KERNEL_INITRAMFS := kernel-bin | dtb | gzip | uImage gzip
BOOT_SIZE := 8
IMAGES := rootfs.img.gz kernel.dtb
DEVICE_DTB := apollo3g.dtb
FILESYSTEMS := ext4
IMAGE/kernel.dtb := export-dtb
IMAGE/rootfs.img.gz := boot-script | boot-img | hdd-img | gzip | append-metadata
endef
define Device/wd_mybooklive
$(Device/MyBookLiveDefault)
DEVICE_TITLE := Western Digital My Book Live
DEVICE_DTS := wd-mybooklive
SUPPORTED_DEVICES += mbl
endef
TARGET_DEVICES += wd_mybooklive
define Device/wd_mybooklive-duo
$(Device/MyBookLiveDefault)
DEVICE_TITLE := Western Digital My Book Live Duo
DEVICE_PACKAGES := kmod-usb-dwc2 kmod-usb-ledtrig-usbport kmod-usb-storage kmod-fs-vfat wpad-mini
DEVICE_DTS := wd-mybooklive-duo
SUPPORTED_DEVICES += mbl
endef
TARGET_DEVICES += wd_mybooklive-duo
endif
$(eval $(call BuildImage))
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