The VAR11N-300 is a tiny wireless-N device with a hardwired Ethernet
cable, one extra Ethernet port, and an internal antenna, based on the
MediaTek MT7620n chipset.
Specs:
- MT7620n WiSoC @ 600MHz
- 32 MB SDRAM
- 4 MB SPI flash
- 2T2R 2.4GHz WiFi-N
- 1 attached 10/100 Ethernet cable (LAN)
- 1 10/100 Ethernet port (WAN)
- 1 attached USB / barrel 5vdc power cable
- 5 LEDs (see notes below)
- 1 reset button
- 1 UART (3 pads on board)
Installation:
The stock firmware does not support uploading new firmware directly,
only checking the manufacturer's site for updates. This process may be
possible to spoof, but the update check uses some kind of homebrew
encryption that I didn't investigate. Instead, you can install via a
backdoor:
1. Set up a TFTP server to serve the firmware binary
(lede-ramips-mt7620-var11n-300-squashfs-sysupgrade.bin)
2. Factory reset the device by holding the reset button for a few
seconds.
3. Open the web interface (default IP: 192.168.253.254)
4. Log in with the "super admin" credentials: username `vonets`,
password `vonets26642519`.
5. On the "Operative Status" page, click the text "System Uptime", then
quickly click the uptime value.
6. If successful, an alert dialog will appear reading "Ated start", and
the device will now accept telnet connections. If the alert does not
appear, repeat step 5 until it works (the timing is a bit tricky).
7. Telnet to the device using credentials "admin / admin"
8. Retrieve the firmware binary from the tftp server: `tftp -l lede.bin
-r lede-ramips-mt7620-var11n-300-squashfs-sysupgrade.bin -g
<tftp-server-ip>`
9. Write the firmware to flash: `mtd_write write lede.bin /dev/mtd4`
10. Reboot
Tested:
- LAN / WAN ethernet
- WiFi
- LAN / WAN / status LED GPIOs (see notes below)
- Reset button
- Sysupgrade
Notes:
LEDs:
The board has 5 LEDs - two green LEDs for LAN / WAN activity, one blue
LED for WiFi, and a pair of "status" LEDs connected to the same GPIO
(the blue LED lights when the GPIO is low, and the green when it's
high). I was unable to determine how to operate the WiFi LED, as it
does not appear to be controlled by a GPIO directly.
Recovery:
The default U-boot installation will only boot from flash due to a
missing environment block. I generated a valid 4KB env block using
U-boot's `fw_setenv` tool and wrote it to flash at 0x30000 using an
external programmer. After this, it was possible to enter the U-boot
commandline interface and download a new image via TFTP (`tftpboot
81b00000 <image-filename>`), but while I could boot this image
sucessfully (`bootm`), writing it to flash (`cp.linux`) just corrupted
the flash chip. The sysupgrade file can be written to flash at 0x50000
using an external programmer.
Signed-off-by: Andrew Crawley <acrawley@gmail.com>
Use the GPIO dt-bindings macros and add compatible strings in the
ramips device tree source files.
Signed-off-by: L. D. Pinney <ldpinney@gmail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
Use only the jedec,spi-nor compatible string. Everything else either
never worked or is only support to keep compatibility.
Remove the linux,modalias property. It is obsolete since kernel 4.4.
Signed-off-by: Mathias Kresin <dev@kresin.me>
All compiled device tree files not mentioned are binary identical to the
former ones.
Fix the obvious decimal/hex confusion for the power key of ramips/M2M.dts.
Due to the include of the input binding header, the BTN_* node names in:
- ramips/GL-MT300A.dts
- ramips/GL-MT300N.dts
- ramips/GL-MT750.dts
- ramips/Timecloud.dts
will be changed by the compiler to the numerical equivalent.
Move the binding include of lantiq boards to the file where they are
used the first time to hint the user where the values do come from.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Add node aliases to dtsi files.
Reword dts files so they're more in-line with upstream.
Fix some more warnings and errors reported by dtc
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
The upstream LED naming convention is "device:color:led-name", but it seems that many of supported boards in OpenWrt don't follow this approach.
The following patch fixes this inconsistency in dts{,i} files and updates base-files scripts for ramips target:
* fixes wrong indentation
* keeps case statements structure in same convention as in other scripts (no empty line after ";;", no indentation for case...esac body)
* fixes wrong LED names for some of boards (makes them the same as in dts{,i} files)
* combines boards with same configuration (ex. set_wifi_led "rt2800pci-phy0::radio" in 01_leds)
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
SVN-Revision: 46664
The following patch fixes:
* wrong indentations
* doubled gpio-keys-polled nodes (DIR-300-B7, DIR-320-B1, DIR-610-A1)
* duplicate spacings
* empty lines at end of files and after last child nodes
* trailing and leading whitespace
* unnecessary and commented-out code
* missing empty lines between nodes and between properties and nodes
* unnecessary empty lines between nodes properties [1]
in .dts{,i} files, for ramips target.
[1] Some of empty lines in SOCs dtsi files were left untouched, because they seem to be there for a reason (readability?).
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
SVN-Revision: 46613
Move eeprom extraction from scripts to dts files.
Additionally there are few other changes like:
- whitespace fixes
- add partition labels where needed
- BR6524N board doesn't exist (lost in translation?)
- fix Edimax 3g-6200nl model
- add wmac eeprom to dts for Asus RT-N14U board
Compile tested all subtargets and their profiles.
Run tested on:
- Asus RT-N15
- Asus RT-N14U
- Buffalo WHR-600D
- Argus ATP52B
- Sparklan WCR-150GN
Few problems noted:
- many boards didn't have wmac eeprom information defined at all
- several boards don't have any patitions defined (see FIXME comments in dts)
Signed-off-by: Roman Yeryomin <roman@advem.lv>
SVN-Revision: 41680