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authorChristian Lamparter <chunkeey@gmail.com>2018-03-26 17:25:32 +0200
committerHauke Mehrtens <hauke@hauke-m.de>2018-03-30 00:30:52 +0200
commitc555b524c7e55f54aea69d11113bc36326aabafe (patch)
treeac7d1086b779c3bf3f7c0aaa323a898f80a26a0a /target/linux/apm821xx/image
parente2b35f91b38f668976cc8a8e08843cf853d9be71 (diff)
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apm821xx: increase WNDR4700's dtb+kernel partition to 3.5 MiB
This patch cleans and reworks the WNDR4700 dts to increase the now combined dtb+kernel partition to 3.5 MiB. This has become necessary due to the switch to GCC 7.3 and the ever increasing kernel binary size. The dtb+kernel partition was combined in order to finally fix the problem with out-of-sync device-trees. From now on, the kernel and device-tree will always be updated together. Upgrade Note: Existing installations will have to use the TFTP firmware recovery option in order to install the update. Affected users are advised to make a backup of their existing configuration prior to running sysupgrade: <https://openwrt.org/docs/guide-user/installation/generic.backup#backup_openwrt_configuration> Due to the repartitioning of the NAND, the generated backup should be placed on either the internal HDD, an attached USB-Stick or on another PC (externally). To manually trigger the firmware recovery, the reset button has to be pressed (and hold) during boot. U-boot will enter the "Upgrade Mode" and starts a tftpserver listening on 192.168.1.1 for a tftp client from one of the four LAN/Ethernet ports to connect and upload the new system: (enable tftp binary mode!). openwrt-apm821xx-nand-netgear_wndr4700-squashfs-factory.img Cc: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Diffstat (limited to 'target/linux/apm821xx/image')
-rw-r--r--target/linux/apm821xx/image/Makefile18
1 files changed, 12 insertions, 6 deletions
diff --git a/target/linux/apm821xx/image/Makefile b/target/linux/apm821xx/image/Makefile
index 4e6b6e4995..4cfbea4cbd 100644
--- a/target/linux/apm821xx/image/Makefile
+++ b/target/linux/apm821xx/image/Makefile
@@ -21,6 +21,11 @@ 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 $@
endef
@@ -115,8 +120,7 @@ define Build/create-uImage-dtb
-$(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 $(IMAGE_KERNEL).dtb $@.new
- @mv $@.new $@
+ -d "$@.dtb" "$@.dtb.uimage"
endef
define Build/MuImage-initramfs
@@ -163,11 +167,13 @@ define Device/netgear_wndr4700
DTB_SIZE := 131008
IMAGE_SIZE := 24960k
IMAGES := factory.img sysupgrade.tar kernel.dtb
- KERNEL_SIZE := 1920k
- KERNEL := dtb | kernel-bin | lzma | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | \
- append-uImage-fakeroot-hdr
+ KERNEL_SIZE := 3584k
+ # append a fake/empty rootfs to fool netgear's uboot
+ # CHECK_DNI_FIRMWARE_ROOTFS_INTEGRITY in do_chk_dniimg()
+ KERNEL := kernel-bin | lzma | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | \
+ append-uImage-fakeroot-hdr | dtb | create-uImage-dtb | prepend-dtb
KERNEL_INITRAMFS := kernel-bin | gzip | dtb | MuImage-initramfs gzip
- IMAGE/factory.img := create-uImage-dtb | append-kernel | pad-to 2M | append-ubi | \
+ 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