From d6a11833ad67c33ad10dadf396f6c30bb44ef30f Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Fri, 20 Oct 2023 16:20:27 +0200 Subject: [PATCH] apm821xx: WNDR4700: fix broken sysupgrade, factory images prepend-dtb got extended to handle the Meraki devices too, the problem here was that the Netgear WNDR4700 expects an u-boot header in front of the DTB, whereas Meraki devices don't. Since the header was dropped, the WNDR4700's uboot started to complain: Bad Magic Number,it is forbidden to be written to flash!! when flashing the factory.img since it expects an u-boot header there. Fixes: 5dece2d9355a ("apm821xx: switch over from DTB_SIZE to DEVICE_DTC_FLAGS") Reported-by: @kisgezenguz Signed-off-by: Christian Lamparter --- target/linux/apm821xx/image/nand.mk | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/target/linux/apm821xx/image/nand.mk b/target/linux/apm821xx/image/nand.mk index 9ecc2320fd..469bf58c1d 100644 --- a/target/linux/apm821xx/image/nand.mk +++ b/target/linux/apm821xx/image/nand.mk @@ -3,7 +3,12 @@ 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 "$@.dtb" "$@.dtb.uimage" + -d "$(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb" "$@.dtb.uimage" +endef + +define Build/prepend-dtb-uImage + cat "$@.dtb.uimage" "$@" > "$@.new" + mv "$@.new" "$@" endef define Build/meraki-header @@ -104,7 +109,7 @@ define Device/netgear_wndr4700 # append a fake/empty rootfs to fool netgear's uboot # CHECK_DNI_FIRMWARE_ROOTFS_INTEGRITY in do_chk_dniimg() KERNEL := kernel-bin | lzma -d16 | uImage lzma | pad-offset $$(BLOCKSIZE) 64 | \ - append-uImage-fakehdr filesystem | create-uImage-dtb | prepend-dtb + append-uImage-fakehdr filesystem | create-uImage-dtb | prepend-dtb-uImage KERNEL_INITRAMFS := kernel-bin | libdeflate-gzip | MuImage-initramfs gzip IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \ netgear-dni | check-size -- 2.30.2