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442f91c117
The TP-Link Archer VR1200v (v2) is a low end DSL modem based on the EcoNet EN751221 processor platform. While it does have an unlocked bootloader, the factory upgrade feature requires a cryptographic signature so flashing from the web UI is not feasible. The Archer VR1200v (v2) uses a dual-image layout. I have chosen to reuse this to support dual-boot between OpenWRT and the factory firmware. Flashing instructions (from bootloader): Build and then locate the squashfs-sysupgrade.bin image file Get the length of that file in hex: printf '%X\n' "$(stat -c%s the-file-squashfs-sysupgrade.bin)" Connect to device with xmodem capability, e.g. picocom --send-cmd lsx -vv -b 115200 /dev/ttyUSB0 Switch device on and press a key within 3 seconds, you should get to a `bldr>` prompt Type: xmdm 80020000 <file length hex> Quickly start xmodem and send the file, in picocom that is ctrl+a ctrl+s <paste-the-file-name> enter If the transfer fails to start, wait 30 seconds to a minute for the bootloader prompt to return and then try the command again. Once the transfer has completed successfully, type the following flash 80000 80020000 <file length hex> Type `re` or simply restart the device to boot into OpenWRT Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Link: https://github.com/openwrt/openwrt/pull/19021 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
52 lines
1.5 KiB
Makefile
52 lines
1.5 KiB
Makefile
include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/image.mk
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define Target/Description
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Build firmware images for EcoNet MIPS based boards.
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endef
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# tclinux-trx is the default format used in the SDK
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define Build/tclinux-trx
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./tclinux-trx.sh $@ $(IMAGE_ROOTFS) $(VERSION_DIST)-$(REVISION) > $@.new
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mv $@.new $@
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endef
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# tclinux bootloader requires LZMA, BUT only provides 7.5MB of space
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# to decompress into. So we use vmlinuz and decompress twice.
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define Device/Default
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DEVICE_DTS_DIR := ../dts
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KERNEL_SIZE := 7480k
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KERNEL_NAME := vmlinuz.bin
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KERNEL_LOADADDR := 0x80020000
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KERNEL := kernel-bin | append-dtb
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endef
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define Device/smartfiber_xp8421-b
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DEVICE_VENDOR := SmartFiber
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DEVICE_MODEL := XP8421-B
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DEVICE_DTS := en751221_smartfiber_xp8421-b
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IMAGES := tclinux.trx
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IMAGE/tclinux.trx := append-kernel | lzma | tclinux-trx
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endef
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TARGET_DEVICES += smartfiber_xp8421-b
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# NOTE: This will not work for upgrading from factory because it requires a cryptographic signature
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# however, it it can be flashed, then it will boot correctly.
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define Device/tplink_archer-vr1200v-v2
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DEVICE_VENDOR := TP-Link
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DEVICE_MODEL := Archer vr1200v
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DEVICE_VARIANT := v2
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TPLINK_FLASHLAYOUT := 16Mmtk
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TPLINK_HWID := 0x0b473502
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TPLINK_HWREV := 0x0006007c
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TPLINK_HWREVADD := 0x0
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TPLINK_HVERSION := 3
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DEVICE_DTS := en751221_tplink_archer-vr1200v-v2
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IMAGES := sysupgrade.bin
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IMAGE/sysupgrade.bin := append-kernel | lzma | pad-to 4193792 | append-rootfs | \
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tplink-v2-header -R 0x400000
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endef
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TARGET_DEVICES += tplink_archer-vr1200v-v2
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$(eval $(call BuildImage))
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