This patch adds support for building factory and sysupgrade images for the Netgear EX2700 that don't require modification of u-boot environment variables.
The bootloader on this device expects the kernel partition to end on a 64k block boundary. The last 64 byte of the kernel partition must contain a valid uImage header - in the stock firmware, this is the uImage header of the root filesystem. For this patch, we're using the uImage header of a 0 byte partition (ex2700-fakeroot.uImage). Signed-off-by: Joseph C. Lehner <joseph.c.leh...@gmail.com> --- diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile index a42f8b9..3ce4d91 100644 --- a/target/linux/ramips/image/Makefile +++ b/target/linux/ramips/image/Makefile @@ -912,8 +912,37 @@ endif # MT7620A Profiles # +# $(1): (ignored) +# $(2): Board name (small caps) +# $(3): DTS file name without extension +# $(4): Erase block size +# $(5): DNI hardware id +# $(6): Maximum image size +define BuildFirmware/Netgear/squashfs + $(call PatchKernelLzmaDtb,$(2),$(3)) + $(eval kernelsize=$(shell wc -c < $(KDIR)/vmlinux-$(2).bin.lzma)) + # Round (kernelsize + 2*64) to erase blocks, avoiding parens + $(eval kernelsize=$(shell expr 2 \* 64 + $(kernelsize))) + $(eval kernelsize=$(shell expr 1 + $(kernelsize) / $(4))) + $(eval kernelsize=$(shell expr $(4) \* $(kernelsize))) + dd if=$(KDIR)/vmlinux-$(2).bin.lzma \ + of=$(KDIR)/vmlinux-$(2).bin.lzma.tmp \ + bs=$$$$(($(kernelsize)-2*64)) count=1 conv=sync + $(call MkImage,lzma,$(KDIR)/vmlinux-$(2).bin.lzma.tmp,$(KDIR)/vmlinux-$(2).uImage) + + cat ex2700-fakeroot.uImage >> $(KDIR)/vmlinux-$(2).uImage + + $(call MkImageSysupgrade/squashfs,squashfs,$(2),$(6)) + + $(STAGING_DIR_HOST)/bin/mkdniimg \ + -B $(3) -H $(5) -v OpenWrt \ + -i $(call imgname,squashfs,$(2))-sysupgrade.bin \ + -o $(call imgname,squashfs,$(2))-factory.bin +endef + Image/Build/Profile/E1700=$(call BuildFirmware/UMedia/$(1),$(1),e1700,E1700,0x013326) -Image/Build/Profile/EX2700=$(call BuildFirmware/Default4M/$(1),$(1),ex2700,EX2700) +ex2700_mtd_size=3604480 +Image/Build/Profile/EX2700=$(call BuildFirmware/Netgear/$(1),$(1),ex2700,EX2700,65536,29764623+4+0+32+2x2+0,$(ex2700_mtd_size)) Image/Build/Profile/MT7620a=$(call BuildFirmware/Default8M/$(1),$(1),mt7620a,MT7620a) Image/Build/Profile/MT7620a_MT7610e=$(call BuildFirmware/Default8M/$(1),$(1),mt7620a_mt7610e,MT7620a_MT7610e) Image/Build/Profile/MT7620a_MT7530=$(call BuildFirmware/Default8M/$(1),$(1),mt7620a_mt7530,MT7620a_MT7530) diff --git a/target/linux/ramips/image/ex2700-fakeroot.uImage b/target/linux/ramips/image/ex2700-fakeroot.uImage new file mode 100644 index 0000000000000000000000000000000000000000..340f736141e84e425fe66b372eef80b217146df5 GIT binary patch literal 64 ocmY#ql?+qLV?W4%1+cQRGx!&z=7krPD5NE3rxxYsm!K;H01lrBPXGV_ literal 0 HcmV?d00001 -- 2.5.0 _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
