e2b35f91b3
The recent change to switch to gcc 7.3 broke the image generation code, as the kernel would no longer fit into KERNEL_SIZE. This patch fixes the issue by reworking the initramfs creation and packaging, which will get rid of the KERNEL_SIZE check in the process. This new initramfs can be loaded through the MR24 U-boot in the following way: => setenv ipaddr 192.168.1.1 => setenv bootargs console=ttyS0,$baudrate => tftpboot c00000 192.168.1.2:meraki_mr24-initramfs-kernel.bin [...] Load address: 0xc00000 Loading: ################################################ [...] done Bytes transferred = 5952544 (5ad420 hex) => bootm $fileaddr \## Booting kernel from Legacy Image at 00c00000 ... ... For more information and the latest flashing guide: please visit the OpenWrt Wiki Page for the MR24: <https://openwrt.org/toh/meraki/mr24#flashing> Cc: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
246 lines
7.3 KiB
Makefile
246 lines
7.3 KiB
Makefile
#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/image.mk
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DEVICE_VARS += IMAGE_SIZE DTB_SIZE
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define Device/Default
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PROFILES := Default
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KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
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DEVICE_DTS :=
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KERNEL_ENTRY := 0x00000000
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KERNEL_LOADADDR := 0x00000000
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DEVICE_DTS_DIR := ../dts
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SUPPORTED_DEVICES = $(subst _,$(comma),$(1))
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endef
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define Build/dtb
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$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb,,--space $(DTB_SIZE))
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endef
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define Build/export-dtb
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cp $(IMAGE_KERNEL).dtb $@
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endef
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ifeq ($(SUBTARGET),nand)
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define Image/cpiogz
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( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz )
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endef
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define Build/copy-file
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cat "$(1)" > "$@"
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endef
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define Build/MerakiAdd-dtb
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$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb)
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( \
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dd if=$@.dtb bs=$(DTB_SIZE) conv=sync; \
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dd if=$@ bs=$(BLOCKSIZE) conv=sync; \
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) > $@.new
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@mv $@.new $@
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endef
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define Build/MerakiAdd-initramfs
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$(call Image/cpiogz)
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-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T ramdisk \
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-C gzip -n "$(PROFILE) rootfs" \
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-d $(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz \
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$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz
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( \
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dd if=$@ bs=1k conv=sync; \
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dd if=$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz bs=$(BLOCKSIZE) conv=sync; \
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) > $@.new
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@mv $@.new $@
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endef
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define Build/MerakiNAND
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-$(STAGING_DIR_HOST)/bin/mkmerakifw \
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-B $(BOARD_NAME) -s \
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-i $@ \
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-o $@.new
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@cp $@.new $@
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endef
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define Device/meraki_mr24
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DEVICE_TITLE := Cisco Meraki MR24
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DEVICE_PACKAGES := kmod-spi-gpio
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BOARD_NAME := mr24
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DEVICE_DTS := meraki-mr24
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BLOCKSIZE := 63k
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IMAGES := sysupgrade.tar
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DTB_SIZE := 64512
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IMAGE_SIZE := 8191k
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KERNEL := kernel-bin | lzma | uImage lzma | MerakiAdd-dtb | MerakiNAND
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KERNEL_INITRAMFS := kernel-bin | lzma | dtb | MuImage-initramfs lzma
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IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
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UBINIZE_OPTS := -E 5
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SUPPORTED_DEVICES += mr24
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endef
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TARGET_DEVICES += meraki_mr24
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define Device/meraki_mx60
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DEVICE_TITLE := Cisco Meraki MX60/MX60W
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DEVICE_PACKAGES := kmod-spi-gpio kmod-usb-ledtrig-usbport kmod-usb-dwc2 \
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kmod-usb-storage block-mount
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BOARD_NAME := mx60
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DEVICE_DTS := meraki-mx60
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BLOCKSIZE := 63k
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IMAGES := sysupgrade.tar
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DTB_SIZE := 64512
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# The kernel size will need to match the offset defined in mkmerakifw.c,
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# otherwise the final image will fail to boot. This is set within the
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# MX60 kernel header definition which is found at
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# ./tools/firmware-utils/src/mkmerakifw.c, line 103~
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KERNEL_SIZE := 2984k
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IMAGE_SIZE := 1021m
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KERNEL := kernel-bin | gzip | uImage gzip | MerakiAdd-dtb | MerakiNAND
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KERNEL_INITRAMFS := copy-file $(KDIR)/vmlinux | gzip | uImage gzip | \
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check-size $$(KERNEL_SIZE) | \
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MerakiAdd-dtb | pad-to 2047k | MerakiAdd-initramfs | \
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MerakiNAND
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IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
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UBINIZE_OPTS := -E 5
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SUPPORTED_DEVICES += mx60
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endef
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TARGET_DEVICES += meraki_mx60
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define Build/create-uImage-dtb
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# flat_dt target expect FIT image - which WNDR4700's uboot doesn't support
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-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) \
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-O linux -T kernel -C none \
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-n '$(call toupper,$(LINUX_KARCH)) $(VERSION_DIST) Linux-$(LINUX_VERSION)' \
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-d $(IMAGE_KERNEL).dtb $@.new
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@mv $@.new $@
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endef
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define Build/MuImage-initramfs
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rm -rf $@.fakerd $@.new
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dd if=/dev/zero of=$@.fakerd bs=32 count=1 conv=sync
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# Netgear used an old uboot that doesn't have FIT support.
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# So we are stuck with either a full ext2/4 fs in a initrd.
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# ... or we try to make the "multi" image approach to work
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# for us.
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#
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# Sadly, the "multi" image has to consists of three
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# "fixed" parts in the following "fixed" order:
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# 1. The kernel which is in $@
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# 2. The (fake) initrd which is in $@.fakerd
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# 3. The device tree binary which is in $@.dtb
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#
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# Now, given that we use the function for the kernel which
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# already has a initramfs image inside, we still have to
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# add a "fake" initrd (which a mkimage header) in the second
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# part of the legacy multi image. Since we need to put the
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# device tree stuff into part 3.
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-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T multi \
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-C $(1) -a $(KERNEL_LOADADDR) -e $(KERNEL_ENTRY) \
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-n '$(BOARD_NAME) initramfs' -d $@:$@.fakerd:$@.dtb $@.new
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mv $@.new $@
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rm -rf $@.fakerd
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endef
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define Device/netgear_wndr4700
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DEVICE_TITLE := Netgear Centria N900 WNDR4700/WNDR4720
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DEVICE_PACKAGES := badblocks block-mount e2fsprogs \
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kmod-dm kmod-fs-ext4 kmod-fs-vfat kmod-usb-ledtrig-usbport \
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kmod-md-mod kmod-nls-cp437 kmod-nls-iso8859-1 kmod-nls-iso8859-15 \
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kmod-nls-utf8 kmod-usb3 kmod-usb-dwc2 kmod-usb-storage \
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partx-utils
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BOARD_NAME := wndr4700
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DEVICE_DTS := netgear-wndr4700
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PAGESIZE := 2048
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SUBPAGESIZE := 512
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BLOCKSIZE := 128k
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DTB_SIZE := 131008
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IMAGE_SIZE := 24960k
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IMAGES := factory.img sysupgrade.tar kernel.dtb
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KERNEL_SIZE := 1920k
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KERNEL := dtb | kernel-bin | lzma | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | \
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append-uImage-fakeroot-hdr
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KERNEL_INITRAMFS := kernel-bin | gzip | dtb | MuImage-initramfs gzip
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IMAGE/factory.img := create-uImage-dtb | append-kernel | pad-to 2M | append-ubi | \
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netgear-dni | check-size $$$$(IMAGE_SIZE)
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IMAGE/sysupgrade.tar := sysupgrade-tar | append-metadata
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IMAGE/kernel.dtb := export-dtb | uImage none
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NETGEAR_BOARD_ID := WNDR4700
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NETGEAR_HW_ID := 29763875+128+256
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UBINIZE_OPTS := -E 5
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SUPPORTED_DEVICES += wndr4700
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endef
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TARGET_DEVICES += netgear_wndr4700
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endif
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ifeq ($(SUBTARGET),sata)
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### Image scripts for the WD My Book Live Series ###
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define Build/boot-script
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$(STAGING_DIR_HOST)/bin/mkimage -A powerpc -T script -C none -n "$(PROFILE) Boot Script" \
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-d mbl_boot.scr \
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$@.scr
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endef
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define Build/boot-img
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$(RM) -rf $@.bootdir
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mkdir -p $@.bootdir/boot
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$(CP) $@.scr $@.bootdir/boot/boot.scr
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$(CP) $(IMAGE_KERNEL).dtb $@.bootdir/boot/$(DEVICE_DTB)
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$(CP) $(IMAGE_KERNEL) $@.bootdir/boot/uImage
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genext2fs --block-size $(BLOCKSIZE:%k=%Ki) --size-in-blocks $$((1024 * $(BOOT_SIZE))) --root $@.bootdir $@.boot
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# convert it to revision 1 - needed for u-boot ext2load
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$(STAGING_DIR_HOST)/bin/tune2fs -O filetype $@.boot
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$(STAGING_DIR_HOST)/bin/e2fsck -pDf $@.boot > /dev/null
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endef
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define Build/hdd-img
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./mbl_gen_hdd_img.sh $@ $@.boot $(IMAGE_ROOTFS)
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endef
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define Device/MyBookLiveDefault
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IMAGE_SIZE := 48m
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BLOCKSIZE := 1k
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DTB_SIZE := 16384
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KERNEL := kernel-bin | dtb | gzip | uImage gzip
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KERNEL_INITRAMFS := kernel-bin | dtb | gzip | uImage gzip
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BOOT_SIZE := 8
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IMAGES := rootfs.img.gz kernel.dtb
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DEVICE_DTB := apollo3g.dtb
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FILESYSTEMS := ext4
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IMAGE/kernel.dtb := export-dtb
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IMAGE/rootfs.img.gz := boot-script | boot-img | hdd-img | gzip | append-metadata
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endef
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define Device/wd_mybooklive
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$(Device/MyBookLiveDefault)
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DEVICE_TITLE := Western Digital My Book Live
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DEVICE_DTS := wd-mybooklive
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SUPPORTED_DEVICES += mbl
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endef
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TARGET_DEVICES += wd_mybooklive
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define Device/wd_mybooklive-duo
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$(Device/MyBookLiveDefault)
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DEVICE_TITLE := Western Digital My Book Live Duo
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DEVICE_PACKAGES := kmod-usb-dwc2 kmod-usb-ledtrig-usbport kmod-usb-storage kmod-fs-vfat wpad-mini
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DEVICE_DTS := wd-mybooklive-duo
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SUPPORTED_DEVICES += mbl
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endef
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TARGET_DEVICES += wd_mybooklive-duo
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endif
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$(eval $(call BuildImage))
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