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>
--- Changes for v8: * Fix dd invocation Changes for v7: * Word wrap, again. Changes for v6: * Forgot to add backslash (sorry) Changes for v5: * Don't break if the kernel directory was cleaned using `make target/linux/clean` (due to eval usage). Changes for v4 * Fix word wrap Changes for v3: * Fix maximum image size Changes for v2: * Move fakeroot uImage header to separate file diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile index 8bdd76a..463f89b 100644 --- a/target/linux/ramips/image/Makefile +++ b/target/linux/ramips/image/Makefile @@ -912,8 +912,34 @@ endif # MT7620A Profiles # +# $(1): (ignored) +# $(2): lowercase board name +# $(3): uppercase board name (must match DTS filename w/o extension) +# $(4): erase block size +# $(5): hardware id for mkdniimg +# $(6): maximum image size +define BuildFirmware/Netgear/squashfs + $(call PatchKernelLzmaDtb,$(2),$(3)) + # Pad kernel to eraseblock boundary, minus 2 uImage headers (=128 bytes): + # bs = (eraseblock * (1 + (128 + kernelsize)/eraseblock)) - 128 + dd if=$(KDIR)/vmlinux-$(2).bin.lzma \ + of=$(KDIR)/vmlinux-$(2).bin.lzma.tmp \ + bs=`expr \( $(4) \* \( 1 + \( 128 + \`wc -c < $(KDIR)/vmlinux-$(2).bin.lzma\` \) / $(4) \) \) - 128` \ + 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=3866624 +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
