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openwrt/target/linux/apm821xx/image/Makefile
Christian Lamparter 36c19c9f0b 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. But starting with 4.19, the MX60(W)'s kernel image
outgrew the allocated space for sysupgrade images as well. Hence
This patch reworks the initramfs, which allows the device to ease
up on the impossible tight kernel size requirements for the
sysupgrade creation and packaging. And as a result, the now
orphaned special ramdisk setup is removed in the process.

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 ...
    ...

Updated Flashing instructions for new installations which integrates
the new recovery method. Users of existing installations that only
want to sysupgrade don't need to update their existing u-boot env.

=> setenv owrt_load1 ubi read \${meraki_loadaddr} kernel
=> setenv owrt_load2 ubi read \${meraki_loadaddr} recovery
=> setenv lede_bootkernel bootm \${meraki_loadaddr_kernel} - \${meraki_loadaddr_fdt}
=> setenv owrt_bootkernel bootm \${meraki_loadaddr}
=> setenv owrt_bootargs setenv bootargs console=ttyS0,\${baudrate} rootfstype=squashfs mtdoops.mtddev=oops
=> setenv owrt_boot run meraki_ubi owrt_bootargs\; run owrt_load1 meraki_checkpart lede_bootkernel\; run owrt_load2 owrt_bootkernel
=> setenv bootcmd run owrt_boot
=> saveenv

For more information and the latest flashing guide:
please visit the OpenWrt Wiki Page for the MR60:
<https://openwrt.org/toh/meraki/mx60#flashing>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2018-12-22 15:08:24 +01:00

246 lines
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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 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/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/copy-file
cat "$(1)" > "$@"
endef
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/dtb
$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb,,--space $(DTB_SIZE))
endef
define Build/export-dtb
cp $(IMAGE_KERNEL).dtb $@
endef
define Build/hdd-img
./mbl_gen_hdd_img.sh $@ $@.boot $(IMAGE_ROOTFS) $(BOOT_SIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
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/MerakiNAND
-$(STAGING_DIR_HOST)/bin/mkmerakifw \
-B $(BOARD_NAME) -s \
-i $@ \
-o $@.new
@cp $@.new $@
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 Build/prepend-dtb
cat "$@.dtb.uimage" "$@" > "$@.new"
mv "$@.new" "$@"
endef
define Image/cpiogz
( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz )
endef
define Device/Default
PROFILES := Default
KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
DEVICE_DTS :=
KERNEL_ENTRY := 0x00000000
KERNEL_LOADADDR := 0x00000000
DEVICE_DTS_DIR := ../dts
SUPPORTED_DEVICES = $(subst _,$(comma),$(1))
endef
ifeq ($(SUBTARGET),nand)
define Device/meraki_mr24
DEVICE_TITLE := Cisco Meraki MR24
DEVICE_PACKAGES := kmod-spi-gpio -swconfig
BOARD_NAME := mr24
DEVICE_DTS := meraki-mr24
BLOCKSIZE := 63k
IMAGES := sysupgrade.tar
DTB_SIZE := 64512
IMAGE_SIZE := 8191k
KERNEL := kernel-bin | lzma | uImage lzma | MerakiAdd-dtb | MerakiNAND
KERNEL_INITRAMFS := kernel-bin | lzma | dtb | MuImage-initramfs lzma
IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
UBINIZE_OPTS := -E 5
SUPPORTED_DEVICES += mr24
endef
TARGET_DEVICES += meraki_mr24
define Device/meraki_mx60
DEVICE_TITLE := Cisco Meraki MX60/MX60W
DEVICE_PACKAGES := kmod-spi-gpio kmod-usb-ledtrig-usbport kmod-usb-dwc2 \
kmod-usb-storage block-mount
BOARD_NAME := mx60
DEVICE_DTS := meraki-mx60
BLOCKSIZE := 63k
IMAGES := sysupgrade.tar
DTB_SIZE := 64512
IMAGE_SIZE := 1021m
KERNEL_SIZE := 4031k
KERNEL := kernel-bin | gzip | uImage gzip | MerakiAdd-dtb | MerakiNAND
KERNEL_INITRAMFS := kernel-bin | gzip | dtb | MuImage-initramfs gzip
IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
UBINIZE_OPTS := -E 5
SUPPORTED_DEVICES += mx60
endef
TARGET_DEVICES += meraki_mx60
define Device/netgear_wndap6x0
DEVICE_PACKAGES := kmod-eeprom-at24
SUBPAGESIZE := 256
PAGESIZE := 512
BLOCKSIZE := 16k
DTB_SIZE := 32768
IMAGE_SIZE := 27392k
IMAGES := sysupgrade.tar factory.img
KERNEL_SIZE := 4032k
KERNEL := dtb | kernel-bin | gzip | MuImage-initramfs gzip
IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
UBINIZE_OPTS := -E 5
endef
define Device/netgear_wndap620
$(Device/netgear_wndap6x0)
DEVICE_TITLE := Netgear WNDAP620 - Premium Wireless-N
DEVICE_DTS := netgear-wndap620
endef
TARGET_DEVICES += netgear_wndap620
define Device/netgear_wndap660
$(Device/netgear_wndap6x0)
DEVICE_TITLE := Netgear WNDAP660 - Dual Radio Dual Band Wireless-N
DEVICE_DTS := netgear-wndap660
endef
TARGET_DEVICES += netgear_wndap660
define Device/netgear_wndr4700
DEVICE_TITLE := Netgear Centria N900 WNDR4700/WNDR4720
DEVICE_PACKAGES := badblocks block-mount e2fsprogs \
kmod-dm kmod-fs-ext4 kmod-fs-vfat kmod-usb-ledtrig-usbport \
kmod-md-mod kmod-nls-cp437 kmod-nls-iso8859-1 kmod-nls-iso8859-15 \
kmod-nls-utf8 kmod-usb3 kmod-usb-dwc2 kmod-usb-storage \
partx-utils
BOARD_NAME := wndr4700
DEVICE_DTS := netgear-wndr4700
PAGESIZE := 2048
SUBPAGESIZE := 512
BLOCKSIZE := 128k
DTB_SIZE := 131008
IMAGE_SIZE := 24960k
IMAGES := factory.img sysupgrade.tar kernel.dtb
KERNEL_SIZE := 3584k
# append a fake/empty rootfs to fool netgear's uboot
# CHECK_DNI_FIRMWARE_ROOTFS_INTEGRITY in do_chk_dniimg()
KERNEL := kernel-bin | lzma | uImage lzma | pad-offset $$(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)
define Device/wd_mybooklive
DEVICE_TITLE := Western Digital My Book Live Series (Single + Duo)
DEVICE_PACKAGES := kmod-usb-dwc2 kmod-usb-ledtrig-usbport kmod-usb-storage kmod-fs-vfat wpad-basic
DEVICE_DTS := wd-mybooklive
SUPPORTED_DEVICES += mbl wd_mybooklive-duo
BLOCKSIZE := 1k
DTB_SIZE := 16384
KERNEL := kernel-bin | dtb | gzip | uImage gzip
KERNEL_INITRAMFS := kernel-bin | dtb | gzip | uImage gzip
BOOT_SIZE := 8
IMAGES := factory.img.gz kernel.dtb sysupgrade.img.gz
DEVICE_DTB := apollo3g.dtb
FILESYSTEMS := ext4 squashfs
IMAGE/factory.img.gz := boot-script | boot-img | hdd-img | gzip
IMAGE/kernel.dtb := export-dtb
IMAGE/sysupgrade.img.gz := boot-script | boot-img | hdd-img | gzip | append-metadata
endef
TARGET_DEVICES += wd_mybooklive
endif
$(eval $(call BuildImage))
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