I was carrying a local commit that added the sdhci stuff and missed it
as a result.
Also fix the rgmii3 thing in the PC2 DTS file as that's bogus and causes
a dmesg warning that it's bogus.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
That commit exposed a bug in the DTS files used by mt7621 where the wrong
reg value for pcie1 (and potentially pcie2) was being used. This was
causing WiFi failures for interfaces in pcie1.
eg. 2.4GHz working but not 5GHz.
As all of these dts entries are already specified in mt7621.dtsi, remove
them.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
There's nothing connected to i2c on this board, so remove it.
Also edited the gpio group to match the PC2 as they're the same.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
There was an error on initial commit, the proper soc is mt7620n (which is
more limited than mt7620a). Moreover, there is a battery management
controller connected to the i2c port of the mt7620n. I have a small piece
of i2c code to get battery level coming.
Signed-off-by: Matthias Badaire <mbadaire@gmail.com>
BOCCO is a communication robot provided by YUKAI Engineering Inc.
SoC: MT7620A
MEM: 256MB
Flash: 8MB
NAND: 512MB (non support)
Include Sound DAC and AMP.
No Wired Ethernet.
Signed-off-by: YuheiOKAWA <tochiro.srchack@gmail.com>
As the Interrupts for the PCI adapters are listed in
devicetree we shouldn't need to have them explicit in the code.
The simplest way to do this is to use of_irq_parse_and_map_pci()
and specify an interrupt-map which identifies the different
PCI hosts by bus/slot numbers.
This has the advantage that the hwirq number are mapped to virq
numbers for us, so the ugly hack can go.
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Splitted out the dts file and create the new dts for the 256 MByte RAM and
the 512 MB RAM version.
Migrate both versions to the common board detection.
The install the 512 MByte Version on a board running the 256 MByte image,
a forceful sysupgrade with the -F flag is required.
Signed-off-by: Davide Ammirata <list@davidea.it>
The RavPower WD03 is a battery powered SD card reader and a USB port.
Specifications:
SOC: MediaTek MT7620N
BATTERY: 6000mah
WLAN: 802.11bgn
LAN: 1x 10/100 Mbps Ethernet
USB: 1x USB 2.0 (Type-A)
RAM: PM Tech PMD708416CTR-5CN 32 MB
FLASH: Holtek HT66F40 - 8 MB Flash
LED: Power button and 4 leds to indicate power level of the
battery (could not get control of that)
INPUT: Power, reset button
OTHER: USB SD-Card reader with card detect on GPIO#42
Tested and working:
- Ethernet
- 2.4 GHz WiFi (Correct MAC-address)
- installation from tftp
- OpenWRT sysupgrade (Preserving and non-preserving)
- LEDs
- Buttons
Installation:
- Download the sysupgrade image
- Place it in the root of a clean TFTP server running on your computer.
- Rename the image to "kernel" — be sure there is no file extension.
- Plug the WD03 into your computer via ethernet.
- Set your computer to use 10.10.10.254 as its IP address.
- With your WD03 shut down, hold down the power button until the first
white LED lights up.
- Push and hold the reset button and release the power button. Continue
holding the reset button for 30 seconds or until it begins searching
for files on your TFTP server, whichever comes first.
- The WD03 (10.10.10.128) will look for your computer at 10.10.10.254
and install the kernel file. Once it has finished installation of the
kernel file, it will search for a (nonexistent) rootfs file — when it
begins searching for this file, shut down the WD03 by holding the
power button normally.
- Start up your WD03 normally.
Signed-off-by: Matthias Badaire <mbadaire@gmail.com>
There is no pinmux group "jtag" for mt7628 and the pinmux driver fails
to load due to the use of the not existing group.
Fixes: FS#1515
Signed-off-by: Mathias Kresin <dev@kresin.me>
The pins are used as (LED) GPIOs and can't be used at the same time as
hardware controlled ephy (LED) pins.
Fixes: FS#1500
Signed-off-by: Mathias Kresin <dev@kresin.me>
In the new USB phy driver, it checks the compatible string before
attempting to iomap its mem resource and do the extra PHY init
Signed-off-by: Felix Fietkau <nbd@nbd.name>
The Zorlik ZL5900V2 is an unbranded clone of HAME MPR-A1/2. It is
marketed as "3G Wi-Fi Router". Only the PCB has the model name
"ZL5900V2" printed on it.
Specifications:
- Ralink RT5350F (360 MHz)
- 32 MB RAM
- 8 MB Flash
- 802.11bgn 1T1R
- 1x 10/100 Mbps Ethernet
- 1x USB 2.0 (Type-A)
- 5200 mAh battery
The ramdisk image (not the squashfs sysupgrade image) can be flashed
through the web interface (named "GoAhead") of the factory firmware.
However, as the factory firmware does not cleanly unmount the rootfs
before flashing, the device may hang instead of rebooting after
successful write. Power cycling the device gets you in OpenWrt where
the squashfs image may be flashed through normal sysupgrade procedure.
Signed-off-by: Vianney le Clément de Saint-Marcq <code@quartic.eu>
YouHua tech WR1200JS is an AC1200 router with 5 1Gb ports (4 Lan, 1 Wan)
and 1 USB 2.0 port.
Devices is base on MediaTek MT7621AT + MT7603E + MT7612E.
Specification:
- MT7612AT (880 MHz)
- 128 MB of RAM
- 16 MB of FLASH (SPI NOR)
- 5x 10/100/1000 Mbps Ethernet
- 2T2R 2.4 GHz (MT7603E)
- 2T2R 5 GHz (MT7612E)
- 1x USB 2.0
- 10x LED (Power 2G 5G WPS Internet LAN4-1 USB)
- 3x button (reset wifi wps)
- DC jack for main power input (12V)
Installation:
1.) Press reset key 5 sec and restore the factory default
2.) Login webUI and change username to root and set a
new password
3.) Visit http://192.168.2.254/adm/telnetd.shtml and
turn on the telnet service
4.) Copy openwrt-ramips-mt7621-youhua_wr1200js-initramfs-kernel.bin
to a usb pan
5.) Plug the usb pan to the router, telnet to the router
and login by root
6.) cd /media/sda1 and check the initramfs file is there
7.) exec command:
mtd_write write openwrt-ramips-mt7621-youhua_wr1200js-initramfs-kernel.bin Kernel
8.) reboot and visit 192.168.1.1
Signed-off-by: Zheng Qian <sotux82@gmail.com>
The previous fw version require the replacement of the stock bootloader
with u-boot. This prevent an easy stock restore of the original fw.
Now a proper fw util has been developed to manage the stock jboot
bootloader. Therefore make sense have a fw image for the stock
bootloader.
The old fw configuration (u-boot) is not compatible with the new one
and will not be supported anymore.
So at the end 2 image can be generated:
1) factory image with jboot bootloader
openwrt-ramips-rt305x-dwr-512-b-squashfs-factory.bin
2) sysupgrade image with jboot bootloader
openwrt-ramips-rt305x-dwr-512-b-squashfs-sysupgrade.bin
Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
The Ralink USB PHY driver merged into mainline has a slightly different
device tree binding than the patch that was used with linux 4.9.
The new driver requires a `ralink,sysctl` node pointing to the `syscon`
node.
This patch also sets `#phy-cells` to 0, as recommended by the mainline
documentation [1].
[1] Documentation/devicetree/bindings/phy/ralink-usb-phy.txt
Signed-off-by: Vianney le Clément de Saint-Marcq <code@quartic.eu>
Supports IPv4 flow offloading on MT7621 for Routing, SNAT and DNAT
Supported are regular ethernet->ethernet connections, including one
802.1q VLAN and/or PPPoE encapsulation
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
The DWR-921-C1 Wireless Routers with LTE embedded modem is based on the
MT7620N SoC.
Specification:
* MediaTek MT7620N (580 Mhz)
* 64 MB of RAM
* 16 MB of FLASH
* 802.11bgn radio
* 5x 10/100 Mbps Ethernet (1 WAN and 4 LAN)
* 2x external, detachable (LTE) antennas
* UART header on PCB (57600 8n1)
* 6x LED (GPIO-controlled)
* 1x bi-color Signal Strength LED (GPIO-controlled)
* 2x button
* JBOOT bootloader
The status led has been assigned to the dwr-921-c1:green:sigstrength (lte
signal strength) led. At the end of the boot it is switched off and is
available for lte operation. Work correctly also during sysupgrade
operation.
Installation:
Apply factory image via d-link http web-gui.
How to revert to OEM firmware:
1.) Push the reset button and turn on the power. Wait until LED start
blinking (~10sec.)
2.) Upload original factory image via JBOOT http (IP: 192.168.123.254)
3.) If http doesn't work, it can be done with curl command:
curl -F FN=@XXXXX.binhttp://192.168.123.254/upg
where XXXXX.bin is name of firmware file.
Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
WHR-G300N has 5 ethernet ports (lan: 4, wan: 1), but there was no
correct configuration in 02_network script and 6 ports was configured
on the switch.
Also, since the MAC address was not acquired from factory partition,
incorrect values was set to LAN and WAN interfaces.
This commit fixes these issues.
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
TP-Link TL-WR902AC v3 is a pocket-size dual-band (AC750) router
based on MediaTek MT7628N + MT7650E.
Specification:
- MediaTek MT7628N/N (580 Mhz)
- 64 MB of RAM
- 8 MB of FLASH
- 2T2R 2.4 GHz and 1T1R 5 GHz
- 1x 10/100 Mbps Ethernet
* MT7650 ac chip isn't not supported by LEDE/OpenWrt at the moment.
Therefore 5Ghz won' work.
Flash instruction:
The only way to flash LEDE image in TL-WR902AC v3 is to use
tftp recovery mode in U-Boot:
1. Configure PC with static IP 192.168.0.66/24 and tftp server.
2. Rename "openwrt-ramips-mt76x8-tplink_tl-wr902ac-v3-squashfs-tftp-recovery.bin"
to "tp_recovery.bin" and place it in tftp server directory.
3. Connect PC with the LAN port, press the reset button, power up
the router and keep button pressed for around 6-7 seconds, until
device starts downloading the file.
4. Router will download file from server, write it to flash and reboot.
Signed-off-by: Peter Lundkvist <peter.lundkvist@gmail.com>
[drop p2led_an pinmux, this pin isn't used as gpio, fix whitespace issues]
Signed-off-by: Mathias Kresin <dev@kresin.me>
The DWR-116-A1/2 Wireless Router is based on the MT7620N SoC.
Specification:
MediaTek MT7620N (580 Mhz)
32 MB of RAM
8 MB of FLASH
802.11bgn radio
5x 10/100 Mbps Ethernet (1 WAN and 4 LAN)
2x external, non-detachable antennas
UART (J1 in A1, JP1 in A2) header on PCB (57600 8n1)
6x LED (GPIO-controlled), 2x button
JBOOT bootloader
Known issues:
WAN LED is drived by uartl tx pin. I decide to use this pin as
uartlite tx pin.
Installation:
Apply factory image via http web-gui.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Revert the changes I applied to aa5014dd1a ("ramips: mt7620n: enable
port 4 as EPHY by default").
The driver expects a node mdio-bus to be present, regardless of the
actual node status. If the node is missing the driver fails to load with
mtk_soc_eth 10100000.ethernet: no mdio-bus child node found
Disable port4 by default again. If the port is enabled but not present, a
"invalid port id 4" warning is shown during boot.
Fixes: FS#1428
Signed-off-by: Mathias Kresin <dev@kresin.me>
According to the datasheet the mt7620n have a fixed switch configuration
with 5 ephy (10/100) port. No RGMII configuration is possible.
Drop the mdio node as well. Without RGMII, the mdio node doesn't make any
sense
Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
[drop mdio node, enable port4 by default]
Signed-off-by: Mathias Kresin <dev@kresin.me>
This board has:
- mt7621 SoC
- 8MB SPI flash
- 128MB RAM
- 5x ethernet ports from internal (SoC) switch
- 1x ethernet port sitting on gmac2 and IC+ phy (not yet supported)
- 3x PCIe slots
- 1x USB 2.0 and 1x USB 3.0
- sound based on wm8960
- SDXC card slot (full size)
First fw write from interactive u-boot menu, interrupt with 2.
After that sysupgrade.
Tested both with 4.9 and 4.14
Signed-off-by: Roman Yeryomin <roman@advem.lv>
The device has a second uart accessible via pin headers, so enable it.
There is also a green power led which was not enabled previously.
Enable it too and use it as status LED.
Signed-off-by: Benjamin Valentin <benjamin.valentin@volatiles.de>
ALFA Network AWUSFREE1 is an USB Wi-Fi N300 adapter based on MT7628.
Specification:
- MT7628AN (580 MHz)
- 64 MB of RAM (DDR2)
- 8 MB of FLASH (SPI NOR)
- 2T2R 2.4 GHz (MT7628) with external FEM (RFFM4203)
- 2x detachable antennas (RP-SMA)
- ASIX AX88772 USB to Ethernet bridge (connected with MT7628 PHY0)
- 4x LED (2 driven by GPIO)
- 1x button (reset)
- 1x mini USB for host and main power input
- UART header on PCB
Flash instruction:
You can use sysupgrade image directly in vendor firmware which is based
on LEDE/OpenWrt. Alternatively, you can use web recovery mode in U-Boot:
1. Power device with reset button pressed and release it after ~5 sec.
2. Setup static IP 192.168.1.2/4 on your PC.
3. Go to 192.168.1.1 in browser and upload "sysupgrade" image.
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
Tama Electric Axing W06 is a 2.4 GHz band 11n router, based on Mediatek
MT7688AN.
Specification:
- MT7688AN (575 MHz)
- 64 MB of RAM (DDR2 SDRAM)
- 16 MB of Flash (SPI)
- 1T1R 2.4 GHz
- 1x 10/100/1000 Mbps Ethernet
- 4x LEDs (GPIO connected: 3), 1x button
- 1x USB 2.0 Type-A (host)
- UART header on PCB (GND, RX, TX, Vcc from RJ45 side)
Flash instruction using sysupgrade image:
1. Connect micro-USB cable for power supply into W06 and turn on the
router
2. Connect to wifi with SSID "tama-*" with password. Complete SSID and
password are listed on the back of the router
3. Access to 192.168.1.1 and login with user name "admin" and password
empty
4. In firmware update（ファームウェア更新） page, click "参照" button
and click "ブラウザー" button to open file browser, select the
sysupgrade image and press OK button
5. Wait ~150 seconds to complete flashing
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Use the generic board detection for the GnuBee Personal Cloud Two
instead of the target specific one as all recent additions are doing.
Fixup the pinmux to set all pins used as GPIO to the function GPIO.
Request pins where used.
Drop the i2c from the dts. There is nothing connected. While at it fix an
indentation issue and use references instead of duplicating the whole
node path.
Use the same switch config as for the GB-PC1 and drop the led trigger for
the not supported IP1001 phy connected to second rgmii.
Fixes: c60a21532b ("ramips: Add support for the GnuBee Personal Cloud Two")
Signed-off-by: Mathias Kresin <dev@kresin.me>
D-Link DAP-1522 is a wireless bridge/access point with 4 LAN
ports and a dual-band wireless chipset.
Specifications:
- Ralink RT2880
- 32 MB of RAM
- 4 MB of Flash
- 4x 10/100/1000 Mbps Ethernet (RTL8366SR)
- 802.11abgn (RT2850)
Flash Instructions:
1. Download lede-ramips-rt288x-dap-1522-a1-squashfs-factory.bin
2. Open the web interface and upload the image
Signed-off-by: George Hopkins <george-hopkins@null.net>
The GnuBee Personal Cloud Two crowdfunded on https://www.crowdsupply.com
It is a low-cost, low-power, network-attached storage device.
Specifications:
- SoC: MediaTek MT7621AT
- RAM: DDR3 512 MB
- Flash: 32 MB
- Six SATA ports for 3.5" Drives
- One SDcard
- One USB 3.0
- Two USB 2.0
- Gigabit Ethernet: Three Ports
- UART 3.5mm Audio Jack or 3 pin header - 57600 8N1
- Three GPIOs available on a pin header
Flash instructions:
The GnuBee Personal Cloud Two ships with libreCMC installed.
libreCMC is a Free Software Foundation approved fork of LEDE/OpenWrt.
As such one can upgrade using the webinterface or sysupgrade.
Das U-Boot has multiple options for recovery or updates including :
- USB
- http
- tftp
Errata:
- While there are three ethernet ports, the third requires support for
the second GMAC. This will come in kernel 4.14.
- The first hard drive slot has a clearance issue with the two fan
headers. Workaround is to pull the headers out and connect the pins to
jumper wires.
- Using this device as a NAS is problematic with the 4.9 kernel as many
/dev/sdX reads throw silent errors. The current theory behind this is
some kind of unhandled DMA mapping error in the kernel. This is not an
issue with kernel 4.4.
Signed-off-by: L. D. Pinney <ldpinney@gmail.com>
Signed-off-by: Rosen Penev <rosenp@gmail.com>
TP-Link Archer C50 v3 is a router with 5-port FE switch and
non-detachable antennas. It's based on MediaTek MT7628N+MT7612E.
Specification:
- MediaTek MT7628N/N (580 Mhz)
- 64 MB of RAM
- 8 MB of FLASH
- 2T2R 2.4 GHz and 2T2R 5 GHz
- 5x 10/100 Mbps Ethernet
- 4x external, non-detachable antennas
- UART (J1) header on PCB (115200 8n1)
- 7x LED (GPIO-controlled*), 2x button, power switch
* WAN LED in this devices is a dual-color, dual-leads type which isn't
(fully) supported by gpio-leds driver. This type of LED requires both
GPIOs state change at the same time to select color or turn it off.
For now, we support/use only the green part of the LED.
Flash instruction:
The only way to flash LEDE image in ArcherC50v3 is to use
tftp recovery mode in U-Boot:
1. Configure PC with static IP 192.168.0.66/24 and tftp server.
2. Rename "openwrt-ramips-mt7628-ArcherC50v3-squashfs-tftp-recovery.bin"
to "tp_recovery.bin" and place it in tftp server directory.
3. Connect PC with one of LAN ports, press the reset button, power up
the router and keep button pressed for around 6-7 seconds, until
device starts downloading the file.
4. Router will download file from server, write it to flash and reboot.
Signed-off-by: Henryk Heisig <hyniu@o2.pl>
Convert userspace code to use generic device-tree compatible board
detection method. Users of the existing code will have to use
sysupgrade -F once to switch to the new generic board naming.
Properly setup pinctrl fixing the switch port LEDs.
Fixes commit 9c4fe103cb (ramips: add support for ZBT-WE1226)
Reported-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Widora has updated their Widora Neo board recently.
The new model uses 32MB WSON-8 factor SPI flash
instead of the original 16MB SOP-8 factor SPI flash.
All the other hardware components are the same as
the first revision.
Detailed hardware specs listed below:
CPU: MTK MT7688AN
RAM: 128MB DDR2
ROM: 32MB WSON-8 factor SPI Flash (Winbond)
WiFi: Built-in 802.11n 150Mbps?
Ethernet: 10/100Mbps x1
Audio codec: WM8960
Other IO: USB OTG;
USB Power+Serial (CP2104);
3x LEDs (Power, LAN, WiFi);
2x Keys (WPS, CPU Reset)
1x Audio In/Out
1x IPEX antenna port
1x Micro SD slot
Signed-off-by: Jackson Ming Hu <huming2207@gmail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
Rename the Widora neo by adding a flash size prefix. Move the common parts
into a dtsi to be prepare everything for upcomming support of the 32MB
version.
Migrate the Widora neo to the generic board detection as well.
Signed-off-by: Mathias Kresin <dev@kresin.me>
According to console log during TP-Link TL-WR840N v5 OEM firmware update
procedure 0x3e0000-0x3f0000 64kB "config" partition, which is used to store
router's configuration settings, is erased and recreated again during every
OEM firmware update procedure, thus does not contain any valuable factory data.
So it is conviniant to use this extra 64kB erase block for jffs overlay due
limited flash size on this device like it used on TP-Link's ar71xx boards.
Signed-off-by: Serg Studzinskii <serguzhg@gmail.com>
TP-Link Archer C20 v4 is a router with 5-port FE switch and
non-detachable antennas. It's based on MediaTek MT7628N+MT7610EN.
Specification:
- MediaTek MT7628N/N (580 Mhz)
- 64 MB of RAM
- 8 MB of FLASH
- 2T2R 2.4 GHz and 1T1R 5 GHz
- 5x 10/100 Mbps Ethernet
- 3x external, non-detachable antennas
- UART (J1) header on PCB (115200 8n1)
- 7x LED (GPIO-controlled*), 2x button, power input switch
* WAN LED in this devices is a dual-color, dual-leads type which isn't
(fully) supported by gpio-leds driver. This type of LED requires both
GPIOs state change at the same time to select color or turn it off.
For now, we support/use only the green part of the LED.
* MT7610EN ac chip isn't not supported by LEDE. Therefore 5Ghz won't
work.
Flash instruction:
The only way to flash LEDE image in ArcherC20v4 is to use
tftp recovery mode in U-Boot:
1. Configure PC with static IP 192.168.0.66/24 and tftp server.
2. Rename "openwrt-ramips-mt7628-ArcherC20v4-squashfs-tftp-recovery.bin"
to "tp_recovery.bin" and place it in tftp server directory.
3. Connect PC with one of LAN ports, press the reset button, power up
the router and keep button pressed for around 6-7 seconds, until
device starts downloading the file.
4. Router will download file from server, write it to flash and reboot.
Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
This changes device name from "TP-Link Archer C20" to "TP-Link Archer C20 v1"
because of TPLINK released new TP-Link Archer C20 v4. Additionally
migration to the generic board detection has been made.
Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
ALFA Network AC1200RM is an AC1200 router, with 5-port FE switch and
USB 2.0 port. Device is based on MediaTek MT7620A + MT7612EN.
Specification:
- MT7620A (580 MHz)
- 64 MB of RAM (DDR2)
- 16 MB of FLASH (SPI NOR)
- 5x 10/100 Mbps Ethernet with passive PoE output in WAN and LAN4
- 2T2R 2.4 GHz (MT7620A)
- 2T2R 5 GHz (MT7612EN)
- 1x USB 2.0
- 9x LED (8 driven by GPIO)
- 1x button (reset)
- DC jack for main power input (12-24 V)
- 2x UART, I2C, I2S and LED headers
Flash instruction (do it under U-Boot, using UART and TFTP server):
Select option "2: Load system code then write to Flash via TFTP" and
use "sysupgrade" image.
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
Use a more appropriate compatible string. Fix the wireless led GPIO and
add the default wireless trigger. Use the wireless LED for boot state
indication as well.
Remove the GPIO pinmux for pins not exposed on the board.
Signed-off-by: Mathias Kresin <dev@kresin.me>
TP-Link TL-MR3420 v5 are simple N300 router with
5-port FE switch and non-detachable antennas.
Its very similar to TP-Link TL-WR841N V13.
Specification:
- MT7628N/N (580 MHz)
- 64 MB of RAM (DDR2)
- 8 MB of FLASH
- 2T2R 2.4 GHz
- 5x 10/100 Mbps Ethernet
- 2x external, non-detachable antennas
- USB 2.0 Port
- UART (J1) header on PCB (115200 8n1)
- 8x LED, 2x button, power input switch
Flash instruction:
The only way to flash LEDE image in mr3420v5 is to use
tftp recovery mode in U-Boot:
1. Configure PC with static IP 192.168.0.225/24 and tftp server.
2. Rename "lede-ramips-mt7628-tplink_tl-mr3420-v5-squashfs-tftp-recovery.bin"
to "tp_recovery.bin" and place it in tftp server directory.
3. Connect PC with one of LAN ports, press the reset button, power up
the router and keep button pressed for around 6-7 seconds, until
device starts downloading the file.
4. Router will download file from server, write it to flash and reboot.
Signed-off-by: Henryk Heisig <hyniu@o2.pl>
