[openwrt/openwrt] ramips: add factory image for TP-Link EC330-G5u v1

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/4a043dc9d46e36882afbecb20f479e335549bd4b

commit 4a043dc9d46e36882afbecb20f479e335549bd4b
Author: Mikhail Zhilkin <csharper2005 at gmail.com>
AuthorDate: Sat Apr 22 09:35:44 2023 +0000

    ramips: add factory image for TP-Link EC330-G5u v1
    
    This commit adds factory.bin image for TP-Link EC330-G5u v1. This allows
    to install OpenWrt without connecting a serial cable (UART).
    
    Installation using factory image
    --------------------------------
    
    Tested with "3.16.0 0.9.1 v6037.0 Build 191016 Rel.30619nb" TP-Link
    firmware.
    
    1.  Login to the router web interface (http://192.168.0.1/ by default) and
        save running config to "conf.bin" file
    2.  Open configuration file in any TP-Link config editor (e.g.
        https://jahed.github.io/tp-link-config-editor/)
    3.  Find "DeviceInfo" section and insert a new string "<Description
        val="Modem Router`telnetd -p 1023 -l login`" />" according to the
        following example:
           <DeviceInfo>
              ...
              <Description val="Modem Router`telnetd -p 1023 -l login`" />
              ...
           </DeviceInfo>
    4.  Save configuration file and upload changed configuration using stock
        firmware interface
    5.  Login using telnet to IP:192.168.0.1 (Username:admin, password:1234)
    6.  Run "cat /proc/mtd | grep mtd7"
           a. If the result is 'mtd7: 03000000 00020000 "rootfs" 03400000',
              then install stock firmware using web interface to toggle booted
              firmware image from "os1" to "os0"
           b. If the result is 'mtd7: 03000000 00020000 "rootfs" 00400000',
              then all is ok, go to the next step
    7.  Set up a tftp server with OpenWrt factory.bin image (IP:192.168.0.100
        in this example)
    8.  Login using telnet to 192.168.0.1
    9.  Download OpenWrt factory.bin image from the tftp server:
           cd /tmp
           tftp -g -r factory.bin 192.168.0.100
    10. Write OpenWrt factory.bin image:
           dd if=/tmp/factory.bin of=/dev/mtdblock1
    11. Power cycle the router
    
    Signed-off-by: Mikhail Zhilkin <csharper2005 at gmail.com>
---
 target/linux/ramips/image/mt7621.mk | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index c362046b8e..24daba43aa 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -2214,6 +2214,9 @@ define Device/tplink_ec330-g5u-v1
 	uImage-tplink-c9 firmware 'OS IMAGE ($(VERSION_DIST))'
   KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | loader-kernel | \
 	uImage none
+  IMAGES += factory.bin
+  IMAGE/factory.bin := append-kernel | pad-to $$(KERNEL_SIZE) | \
+	append-ubi | check-size
   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata | check-size
 endef
 TARGET_DEVICES += tplink_ec330-g5u-v1