Silence ath79 GPIO driver warning by setting GPIO numberspace base
dynamically. This patch also reorganize and fix the GPIO numbers on
6.6 kernel. The new gpio chip base number algorithm:
gpiochip ath79-SOC ath9k-0 ath9k-1
base 512 512+ngpios 512+ngpios+10
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Link: https://github.com/openwrt/openwrt/pull/15784
Signed-off-by: Robert Marko <robimarko@gmail.com>
Before the nvmem rework, this was already handled in dts with
mtd-cal-data instead of qca,no-eeprom. No need to duplicate. Also, the
800 size value seems nonsensical. 440 is the standard.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Specifications:
lan: eth0
wan: eth1
Problem Description:
The lan wan port is reversed with the current machine.
Use eth0 as LAN port and eth1 as WAN port.
Signed-off-by: Weiping Yang <weiping.yang@gl-inet.com>
This patch converts ath10k calibration data to NVMEM format for
wave 1 devices with mtd ASCII MAC address. The "calibration"
NVMEM cell size is 0x844. All unportable MAC address settings
have been moved to '10_fix_wifi_mac' scripts.
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
This patch converts ath10k calibration data to NVMEM format for
wave 1 devices with mtd binary MAC address. The "calibration"
NVMEM cell size is 0x844. The MAC addresses are assigned via dts.
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Specifications:
SoC: QCA9531(650MHz)
RAM: DDR2 128M
Flash: SPI NOR 16M + SPI NAND 128M
WiFi: 2.4GHz with 2 antennas(WiFi/Thread)
Ethernet:
1xLAN(10/100M)
2xWAN(10/100M)
Button: 1x Reset Button
Switch: 1x Mode switch
LED: 1x Blue LED + 1x White LED + 1x Orange LED
IOT: Thread + ZigBee/Zwave
By uboot web failsafe:
Push the reset button for 5 seconds util the power led flash faster,
then use broswer to access http://192.168.1.1
Afterwards upgrade can use sysupgrade image.
Signed-off-by: Weiping Yang <weiping.yang@gl-inet.com>
All kernel configs are refreshed by
'make kernel_oldconfig CONFIG_TARGET=target' and
'make kernel_oldconfig CONFIG_TARGET=subtarget'.
upstreamed patches:
010-v5.17-spi-ar934x-fix-transfer-and-word-delays.patch
011-v5.17-spi-ar934x-fix-transfer-size.patch
020-v5.18-spi-ath79-Implement-the-spi_mem-interface.patch
030-v5.18-ath79-add-support-for-booting-QCN550x.patch
build and run tested on:
ath79/generic/ar7241
ath79/generic/qca9563
ath79/nand/ar9344
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Some symbols are outdated or missing due to daily kernel bumps. It's
better to re-add them. All configs are automatically refreshed by
'make kernel_oldconfig CONFIG_TARGET=taget' and
'make kernel_oldconfig CONFIG_TARGET=subtarget'
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
From the Netgear u-boot GPL code[1]. Bootloader always unconditionally
marks block 768, 1020 - 1023 as bad blocks on each boot. This may lead
to conflicts with the OpenWrt nand driver since these blocks may be good
blocks. In this case, U-boot will override the oob of these blocks so
that break the ubi volume. The system will be damaged after first reboot.
To avoid this issue, manually skip these blocks by using "mtd-concat".
[1] https://www.downloads.netgear.com/files/GPL/EX7300v2series-V1.0.0.146_gpl_src.tar.bz2.zip
Fixes: https://github.com/openwrt/openwrt/issues/8878
Tested-by: Yousaf <yousaf465@gmail.com>
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Specifications:
SOC: Atheros/Qualcomm QCA9557-AT4A @ 720MHz
RAM: 2x Winbond W9751G6KB-25 (128 MiB)
FLASH: Hynix H27U1G8F2BTR-BC TSOP48 ONFI NAND (128 MiB)
WIFI1: Atheros AR9550 5.0GHz (SoC)
WIFI2: Atheros AR9582-AR1A 2.4GHz
WIFI2: Atheros AR9582-AR1A 2.4GHz + 5GHz
PHYETH: Atheros AR8035-A, 802.3af PoE capable Atheros (1x Gigabit LAN)
LED: 1x Power-LED, 1 x RGB Tricolor-LED
INPUT: One Reset Button
UART: JP1 on PCB (Labeled UART), 3.3v-Level, 115200n8
(VCC, RX, TX, GND - VCC is closest to the boot set jumper
under the console pins.)
Flashing instructions:
Depending on the installed firmware, there are vastly different
methods to flash a MR18. These have been documented on:
<https://openwrt.org/toh/meraki/mr18>
Tip:
Use an initramfs from a previous release and then use sysupgrade
to get to the later releases. This is because the initramfs can
no longer be built by the build-bots due to its size (>8 MiB).
Note on that:
Upgrades from AR71XX releases are possible, but they will
require the force sysupgrade option ( -F ).
Please backup your MR18's configuration before starting the
update. The reason here is that a lot of development happend
since AR71XX got removed, so I do advise to use the ( -n )
option for sysupgrade as well. This will cause the device
to drop the old AR71xx configuration and make a new
configurations from scratch.
Note on LEDs:
The LEDs has changed since AR71XX. The white LED is now used during
the boot and when upgrading instead of the green tricolor LED. The
technical reason is that currently the RGB-LED is brought up later
by a userspace daemon.
(added warning note about odm-caldata partition. remove initramfs -
it's too big to be built by the bots. MerakiNAND -> meraki-header.
sort nu801's targets)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
The ZTE MF282 is a LTE router used (exclusively?) by the network operator
"3".
Specifications
==============
SoC: QCA9563 (775MHz)
RAM: 128MiB
Flash: 8MiB SPI-NOR + 128MiB SPI-NAND
LAN: 1x GBit LAN
LTE: ZTE MF270 (Cat4), detected as P685M
WiFi: QCA9880ac + QCA9560bgn
MAC addresses
=============
LAN: from config
WiFi 1: from config
WiFi 2: +1
Installation
============
TFTP installation using UART is preferred. Disassemble the device and
connect serial. Put the initramfs image as openwrt.bin to your TFTP server
and configure a static IP of 192.168.1.100. Load the initramfs image by
typing:
setenv serverip 192.168.1.100
setenv ipaddr 192.168.1.1
tftpboot 0x82000000 openwrt.bin
bootm 0x82000000
From this intiramfs boot you can take a backup of the currently installed
partitions as no vendor firmware is available for download.
Once booted, transfer the sysupgrade image and run sysupgrade.
LTE Modem
=========
The LTE modem is probably the same as in the MF283+, all instructions
apply.
Configuring the connection using modemmanager works properly, the modem
provides three serial ports and a QMI CDC ethernet interface.
Signed-off-by: Andreas Böhler <dev@aboehler.at>
This patch adds supports for GL-X1200.
Specification:
- SOC: QCA9563 (775MHz)
- Flash: 16 MiB
- RAM: 128 MiB DDR2
- Ethernet: 4x 1Gbps LAN + 1x 1Gbps WAN
- Wireless: QCA9563(2.4GHz) and QCA9886(5GHz)
- SIM: 2x SIM card slots
- MicroSD: 1x microSD slot
- Antenna: 2x external 5dBi antennas
- USB: 1x USB 2.0 port
- Button: 1x reset button
- LED: 16x LEDs (3x GPIO controllable)
- UART: 1x UART on PCB (JP1: 3.3V, RX, TX, GND)
- OEM U-Boot supplies HTTP/GUI access
Implementation Notes
====================
Both the NOR and NAND variants boot off a NOR-based kernel,
consistent with the OEM's firmware.
The mode LEDs are
* Boot, Running system
* Failsafe 2G
* Upgrade 5G
Installation
============
Using sysupgrade
----------------
sysupgrade may be used to install a NAND image on a device running
a NAND image or a NOR image on a device running a NOR image. It is
recommended to *not* preserve config when upgrading from OEM firmware
or previous versions of OpenWrt. No supported sysupgrade path should
require "force". Transitioning from NOR to NAND can be accomplished
Using U-Boot
------------
The OEM U-Boot can be put into a graphical, firmware-upload mode by
holding down the button on the side of the router while applying power
and for a bit more than five seconds following with the current OEM
U-Boot. The power LED will come on, then the 5G LED will flash five
times, about once a second. When the 5G LED stops flashing and the
2G LED lights solid, the router's U-Boot will provide an upload page
at http://192.168.1.1/ Either a browser may be used to upload an image,
or a utility such as curl may be used:
curl -X POST -F gl_firmware=\@*-nand-squashfs-factory.img \
http://192.168.1.1/index.html
or
curl -X POST -F gl_firmware=\@*-nor-squashfs-sysupgrade.bin \
http://192.168.1.1/index.html
Note that NOR vs. NAND is based on the file name extension.
Signed-off-by: Xinfa Deng <xinfa.deng@gl-inet.com>
Driver for both soc (2.4GHz Wifi) and pci (5 GHz) now pull the calibration
data from the nvmem subsystem.
This allows us to move the userspace caldata extraction for the pci-e ath9k
supported wifi into the device-tree definition of the device.
wmac's nodes are also changed over to use nvmem-cells over OpenWrt's
custom mtd-cal-data property.
The wifi mac address remains correct after these changes, because When both
"mac-address" and "calibration" are defined, the effective mac address
comes from the cell corresponding to "mac-address" and
mac-address-increment.
Test passed on my wndr3700v4 and wndr4500v3.
Signed-off-by: Edward Chow <equu@openmail.cc>
Add support for the Linksys EA4500 v3 wireless router
Hardware
--------
SoC: Qualcomm Atheros QCA9558
RAM: 128M DDR2 (Winbond W971GG6KB-25)
FLASH: 128M SPI-NAND (Spansion S34ML01G100TFI00)
WLAN: QCA9558 3T3R 802.11 bgn
QCA9580 3T3R 802.11 an
ETH: Qualcomm Atheros QCA8337
UART: 115200 8n1, same as ea4500 v2
USB: 1 single USB 2.0 host port
BUTTON: Reset - WPS
LED: 1x system-LED
LEDs besides the ethernet ports are controlled
by the ethernet switch
MAC Address:
use address(sample 1) source
label 94:10:3e:xx:xx:6f caldata@cal_macaddr
lan 94:10:3e:xx:xx:6f $label
wan 94:10:3e:xx:xx:6f $label
WiFi4_2G 94:10:3e:xx:xx:70 caldata@cal_ath9k_soc
WiFi4_5G 94:10:3e:xx:xx:71 caldata@cal_ath9k_pci
Installation from Serial Console
------------
1. Connect to the serial console. Power up the device and interrupt
autoboot when prompted
2. Connect a TFTP server reachable at 192.168.1.0/24
(e.g. 192.168.1.66) to the ethernet port. Serve the OpenWrt
initramfs image as "openwrt.bin"
3. To test OpenWrt only, go to step 4 and never execute step 5;
To install, auto_recovery should be disabled first, and boot_part
should be set to 1 if its current value is not.
ath> setenv auto_recovery no
ath> setenv boot_part 1
ath> saveenv
4. Boot the initramfs image using U-Boot
ath> setenv serverip 192.168.1.66
ath> tftpboot 0x84000000 openwrt.bin
ath> bootm
5. Copy the OpenWrt sysupgrade image to the device using scp and
install it like a normal upgrade (with no need to keeping config
since no config from "previous OpenWRT installation" could be kept
at all)
# sysupgrade -n /path/to/openwrt/sysupgrade.bin
Note: Like many other routers produced by Linksys, it has a dual
firmware flash layout, but because I do not know how to handle
it, I decide to disable it for more usable space. (That is why
the "auto_recovery" above should be disabled before installing
OpenWRT.) If someone is interested in generating factory
firmware image capable to flash from stock firmware, as well as
restoring the dual firmware layout, commented-out layout for the
original secondary partitions left in the device tree may be a
useful hint.
Installation from Web Interface
------------
1. Login to the router via its web interface (default password: admin)
2. Find the firmware update interface under "Connectivity/Basic"
3. Choose the OpenWrt factory image and click "Start"
4. If the router still boots into the stock firmware, it means that
the OpenWrt factory image has been installed to the secondary
partitions and failed to boot (since OpenWrt on EA4500 v3 does not
support dual boot yet), and the router switched back to the stock
firmware on the primary partitions. You have to install a stock
firmware (e.g. 3.1.6.172023, downloadable from
https://www.linksys.com/support-article?articleNum=148385 ) first
(to the secondary partitions) , and after that, install OpenWrt
factory image (to the primary partitions). After successful
installation of OpenWrt, auto_recovery will be automatically
disabled and router will only boot from the primary partitions.
Signed-off-by: Edward Chow <equu@openmail.cc>
Add support for the ZTE MF281 battery-powered WiFi router.
Hardware
--------
SoC: Qualcomm Atheros QCA9563
RAM: 128M DDR2
FLASH: 2M SPI-NOR (GigaDevice GD25Q16)
128M SPI-NAND (GigaDevice)
WLAN: QCA9563 2T2R 802.11 abgn
QCA9886 2T2R 802.11 nac
WWAN: ASRMicro ASR1826
ETH: Qualcomm Atheros QCA8337
UART: 115200 8n1
Unpopulated connector next to SIM slot
(SIM) GND - RX - TX - 3V3
Don't connect 3V3
BUTTON: Reset - WPS
LED: 1x debug-LED (internal)
LEDs on front of the device are controlled
using the modem CPU and can not be controlled
by OpenWrt
Installation
------------
1. Connect to the serial console. Power up the device and interrupt
autoboot when prompted
2. Connect a TFTP server reachable at 192.168.1.66 to the ethernet port.
Serve the OpenWrt initramfs image as "speedbox-2.bin"
3. Boot the initramfs image using U-Boot
$ setenv serverip 192.168.1.66
$ setenv ipaddr 192.168.1.154
$ tftpboot 0x84000000 speedbox-2.bin
$ bootm
4. Copy the OpenWrt factory image to the device using scp and write to
the NAND flash
$ mtd write /path/to/openwrt/factory.bin firmware
WWAN
----
The WWAN card can be used with OpenWrt. Example configuration for
connection with a unauthenticated dual-stack APN:
network.lte=interface
network.lte.proto='ncm'
network.lte.device='/dev/ttyACM0'
network.lte.pdptype='IPV4V6'
network.lte.apn='internet.telekom'
network.lte.ipv6='auto'
network.lte.delay='10'
The WWAN card is running a modified version of OpenWrt and handles
power-management as well as the LED controller (AW9523). A root shell
can be acquired by installing adb using opkg and executing "adb shell".
Signed-off-by: David Bauer <mail@david-bauer.net>
All subtargets are using now 5.15 as testing kernel.
Move KERNEL_TESTING_PATCHVER:=5.15 to the common Makefile.
Signed-off-by: Nick Hainke <vincent@systemli.org>
This adds support for the Netgear PGZNG1, also known as the ADT Pulse
Gateway.
Hardware:
CPU: Atheros AR9344
Memory: 256MB
Storage: 256MB NAND Hynix H27U2G8F2CTR-BC
USB: 1x USB 2.0
Ethernet: 2x 100Mb/s
WiFi: Atheros AR9340 2.4GHz 2T2R
Leds: 8 LEDs
Button: 1x Reset Button
UART:
Header marked JPE1. Pinout is VCC, TX, RX, GND. The marked pin, closest
to the JPE1 marking, is VCC. Note VCC isn't required to be connected
for UART to work.
Enable Stock Firmware Shell Access:
1. Interrupt u-boot and run the following commands
setenv console_mode 1
saveenv
reset
This will enable a UART shell in the firmware. You can then login using
the root password of `icontrol`. If that doesn't work, the device is
running a firmware based on OpenWRT where you can drop into failsafe to
mount the FS and then modify /etc/passwd.
Installation Instructions:
1. Interupt u-boot and run the following commands
setenv active_image 0
setenv stock_bootcmd nboot 0x81000000 0 \${kernel_offset}
setenv openwrt_bootcmd nboot 0x82000000 0 \${kernel_offset}
setenv bootcmd run openwrt_bootcmd
saveenv
2. boot initramfs image via TFTP u-boot
tftpboot 0x82000000 openwrt-ath79-nand-netgear_pgzng1-initramfs-kernel.bin; bootm 0x82000000
3. Once booted, use LuCI sysupgrade to
flash openwrt-ath79-nand-netgear_pgzng1-squashfs-sysupgrade.bin
MAC Table:
WAN (eth0): xx:xa - caldata 0x0
LAN (eth1): xx:xb - caldata 0x6
WLAN (phy0): xx:xc - burned into ath9k caldata
Not Working:
Z-Wave
RS422
Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
(added more hw-info, fixed file permissions)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
ZTE MF286A and MF286R feature a "power switch override" GPIO in stock
firmware as means to prevent power interruption during firmware update,
especially when used with internal battery.
To ensure that this GPIO is
properly driven as in stock firmware, configure it with userspace GPIO
switch.
It was observed that on some units, the modem would not be
restarted together with the board itself on reboot, this should help
with that as well.
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
- fix eth0 eth1 sharing same mac so it conforms to the behavior stated
in the original commit and the way it is in vendor firmware :
WAN is label, LAN is label +1 and WLAN is label +2
- add default leds config
- add default network config
Signed-off-by: Pascal Coudurier <coudu@wanadoo.fr>
ZTE MF286A and MF286R are indoor LTE category 6/7 CPE router with simultaneous
dual-band 802.11ac plus 802.11n Wi-Fi radios and quad-port gigabit
Ethernet switch, FXS and external USB 2.0 port.
Hardware highlights:
- CPU: QCA9563 SoC at 775MHz,
- RAM: 128MB DDR2,
- NOR Flash: MX25L1606E 2MB SPI Flash, for U-boot only,
- NAND Flash: W25N01GV 128MB SPI NAND-Flash, for all other data,
- Wi-Fi 5GHz: QCA9886 2x2 MIMO 802.11ac Wave2 radio,
- WI-Fi 2.4GHz: QCA9563 3x3 MIMO 802.11n radio,
- Switch: QCA8337v2 4-port gigabit Ethernet, with single SGMII CPU port,
- WWAN:
[MF286A] MDM9230-based category 6 internal LTE modem
[MF286R] PXA1826-based category 7 internal LTE modem
in extended mini-PCIE form factor, with 3 internal antennas and
2 external antenna connections, single mini-SIM slot.
- FXS: one external ATA port (handled entirely by modem part) with two
physical connections in parallel,
- USB: Single external USB 2.0 port,
- Switches: power switch, WPS, Wi-Fi and reset buttons,
- LEDs: Wi-Fi, Test (internal). Rest of LEDs (Phone, WWAN, Battery,
Signal state) handled entirely by modem. 4 link status LEDs handled by
the switch on the backside.
- Battery: 3Ah 1-cell Li-Ion replaceable battery, with charging and
monitoring handled by modem.
- Label MAC device: eth0
The device shares many components with previous model, MF286, differing
mostly by a Wave2 5GHz radio, flash layout and internal LED color.
In case of MF286A, the modem is the same as in MF286. MF286R uses a
different modem based on Marvell PXA1826 chip.
Internal modem of MF286A is supported via uqmi, MF286R modem isn't fully
supported, but it is expected to use comgt-ncm for connection, as it
uses standard 3GPP AT commands for connection establishment.
Console connection: connector X2 is the console port, with the following
pinout, starting from pin 1, which is the topmost pin when the board is
upright:
- VCC (3.3V). Do not use unless you need to source power for the
converer from it.
- TX
- RX
- GND
Default port configuration in U-boot as well as in stock firmware is
115200-8-N-1.
Installation:
Due to different flash layout from stock firmware, sysupgrade from
within stock firmware is impossible, despite it's based on QSDK which
itself is based on OpenWrt.
STEP 0: Stock firmware update:
As installing OpenWrt cuts you off from official firmware updates for
the modem part, it is recommended to update the stock firmware to latest
version before installation, to have built-in modem at the latest firmware
version.
STEP 1: gaining root shell:
Method 1:
This works if busybox has telnetd compiled in the binary.
If this does not work, try method 2.
Using well-known exploit to start telnetd on your router - works
only if Busybox on stock firmware has telnetd included:
- Open stock firmware web interface
- Navigate to "URL filtering" section by going to "Advanced settings",
then "Firewall" and finally "URL filter".
- Add an entry ending with "&&telnetd&&", for example
"http://hostname/&&telnetd&&".
- telnetd will immediately listen on port 4719.
- After connecting to telnetd use "admin/admin" as credentials.
Method 2:
This works if busybox does not have telnetd compiled in. Notably, this
is the case in DNA.fi firmware.
If this does not work, try method 3.
- Set IP of your computer to 192.168.0.22. (or appropriate subnet if
changed)
- Have a TFTP server running at that address
- Download MIPS build of busybox including telnetd, for example from:
https://busybox.net/downloads/binaries/1.21.1/busybox-mips
and put it in it's root directory. Rename it as "telnetd".
- As previously, login to router's web UI and navigate to "URL
filtering"
- Using "Inspect" feature, extend "maxlength" property of the input
field named "addURLFilter", so it looks like this:
<input type="text" name="addURLFilter" id="addURLFilter" maxlength="332"
class="required form-control">
- Stay on the page - do not navigate anywhere
- Enter "http://aa&zte_debug.sh 192.168.0.22 telnetd" as a filter.
- Save the settings. This will download the telnetd binary over tftp and
execute it. You should be able to log in at port 23, using
"admin/admin" as credentials.
Method 3:
If the above doesn't work, use the serial console - it exposes root shell
directly without need for login. Some stock firmwares, notably one from
finnish DNA operator lack telnetd in their builds.
STEP 2: Backing up original software:
As the stock firmware may be customized by the carrier and is not
officially available in the Internet, IT IS IMPERATIVE to back up the
stock firmware, if you ever plan to returning to stock firmware.
It is highly recommended to perform backup using both methods, to avoid
hassle of reassembling firmware images in future, if a restore is
needed.
Method 1: after booting OpenWrt initramfs image via TFTP:
PLEASE NOTE: YOU CANNOT DO THIS IF USING INTERMEDIATE FIRMWARE FOR INSTALLATION.
- Dump stock firmware located on stock kernel and ubi partitions:
ssh root@192.168.1.1: cat /dev/mtd4 > mtd4_kernel.bin
ssh root@192.168.1.1: cat /dev/mtd9 > mtd9_ubi.bin
And keep them in a safe place, should a restore be needed in future.
Method 2: using stock firmware:
- Connect an external USB drive formatted with FAT or ext4 to the USB
port.
- The drive will be auto-mounted to /var/usb_disk
- Check the flash layout of the device:
cat /proc/mtd
It should show the following:
mtd0: 000a0000 00010000 "u-boot"
mtd1: 00020000 00010000 "u-boot-env"
mtd2: 00140000 00010000 "reserved1"
mtd3: 000a0000 00020000 "fota-flag"
mtd4: 00080000 00020000 "art"
mtd5: 00080000 00020000 "mac"
mtd6: 000c0000 00020000 "reserved2"
mtd7: 00400000 00020000 "cfg-param"
mtd8: 00400000 00020000 "log"
mtd9: 000a0000 00020000 "oops"
mtd10: 00500000 00020000 "reserved3"
mtd11: 00800000 00020000 "web"
mtd12: 00300000 00020000 "kernel"
mtd13: 01a00000 00020000 "rootfs"
mtd14: 01900000 00020000 "data"
mtd15: 03200000 00020000 "fota"
mtd16: 01d00000 00020000 "firmware"
Differences might indicate that this is NOT a MF286A device but
one of other variants.
- Copy over all MTD partitions, for example by executing the following:
for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do cat /dev/mtd$i > \
/var/usb_disk/mtd$i; done
"Firmware" partition can be skipped, it is a concatenation
of "kernel" and "rootfs".
- If the count of MTD partitions is different, this might indicate that
this is not a MF286A device, but one of its other variants.
- (optionally) rename the files according to MTD partition names from
/proc/mtd
- Unmount the filesystem:
umount /var/usb_disk; sync
and then remove the drive.
- Store the files in safe place if you ever plan to return to stock
firmware. This is especially important, because stock firmware for
this device is not available officially, and is usually customized by
the mobile providers.
STEP 3: Booting initramfs image:
Method 1: using serial console (RECOMMENDED):
- Have TFTP server running, exposing the OpenWrt initramfs image, and
set your computer's IP address as 192.168.0.22. This is the default
expected by U-boot. You may wish to change that, and alter later
commands accordingly.
- Connect the serial console if you haven't done so already,
- Interrupt boot sequence by pressing any key in U-boot when prompted
- Use the following commands to boot OpenWrt initramfs through TFTP:
setenv serverip 192.168.0.22
setenv ipaddr 192.168.0.1
tftpboot 0x81000000 openwrt-ath79-nand-zte_mf286a-initramfs-kernel.bin
bootm 0x81000000
(Replace server IP and router IP as needed). There is no emergency
TFTP boot sequence triggered by buttons, contrary to MF283+.
- When OpenWrt initramfs finishes booting, proceed to actual
installation.
Method 2: using initramfs image as temporary boot kernel
This exploits the fact, that kernel and rootfs MTD devices are
consecutive on NAND flash, so from within stock image, an initramfs can
be written to this area and booted by U-boot on next reboot, because it
uses "nboot" command which isn't limited by kernel partition size.
- Download the initramfs-kernel.bin image
- After backing up the previous MTD contents, write the images to the
"firmware" MTD device, which conveniently concatenates "kernel" and
"rootfs" partitions that can fit the initramfs image:
nandwrite -p /dev/<firmware-mtd> \
/var/usb_disk/openwrt-ath79-zte_mf286a-initramfs-kernel.bin
- If write is OK, reboot the device, it will reboot to OpenWrt
initramfs:
reboot -f
- After rebooting, SSH into the device and use sysupgrade to perform
proper installation.
Method 3: using built-in TFTP recovery (LAST RESORT):
- With that method, ensure you have complete backup of system's NAND
flash first. It involves deliberately erasing the kernel.
- Download "-initramfs-kernel.bin" image for the device.
- Prepare the recovery image by prepending 8MB of zeroes to the image,
and name it root_uImage:
dd if=/dev/zero of=padding.bin bs=8M count=1
cat padding.bin openwrt-ath79-nand-zte_mf286a-initramfs-kernel.bin >
root_uImage
- Set up a TFTP server at 192.0.0.1/8. Router will use random address
from that range.
- Put the previously generated "root_uImage" into TFTP server root
directory.
- Deliberately erase "kernel" partition" using stock firmware after
taking backup. THIS IS POINT OF NO RETURN.
- Restart the device. U-boot will attempt flashing the recovery
initramfs image, which will let you perform actual installation using
sysupgrade. This might take a considerable time, sometimes the router
doesn't establish Ethernet link properly right after booting. Be
patient.
- After U-boot finishes flashing, the LEDs of switch ports will all
light up. At this moment, perform power-on reset, and wait for OpenWrt
initramfs to finish booting. Then proceed to actual installation.
STEP 4: Actual installation:
- Set your computer IP to 192.168.1.22/24
- scp the sysupgrade image to the device:
scp openwrt-ath79-nand-zte_mf286a-squashfs-sysupgrade.bin \
root@192.168.1.1:/tmp/
- ssh into the device and execute sysupgrade:
sysupgrade -n /tmp/openwrt-ath79-nand-zte_mf286a-squashfs-sysupgrade.bin
- Wait for router to reboot to full OpenWrt.
STEP 5: WAN connection establishment
Since the router is equipped with LTE modem as its main WAN interface, it
might be useful to connect to the Internet right away after
installation. To do so, please put the following entries in
/etc/config/network, replacing the specific configuration entries with
one needed for your ISP:
config interface 'wan'
option proto 'qmi'
option device '/dev/cdc-wdm0'
option auth '<auth>' # As required, usually 'none'
option pincode '<pin>' # If required by SIM
option apn '<apn>' # As required by ISP
option pdptype '<pdp>' # Typically 'ipv4', or 'ipv4v6' or 'ipv6'
For example, the following works for most polish ISPs
config interface 'wan'
option proto 'qmi'
option device '/dev/cdc-wdm0'
option auth 'none'
option apn 'internet'
option pdptype 'ipv4'
The required minimum is:
config interface 'wan'
option proto 'qmi'
option device '/dev/cdc-wdm0'
In this case, the modem will use last configured APN from stock
firmware - this should work out of the box, unless your SIM requires
PIN which can't be switched off.
If you have build with LuCI, installing luci-proto-qmi helps with this
task.
Restoring the stock firmware:
Preparation:
If you took your backup using stock firmware, you will need to
reassemble the partitions into images to be restored onto the flash. The
layout might differ from ISP to ISP, this example is based on generic stock
firmware
The only partitions you really care about are "web", "kernel", and
"rootfs". These are required to restore the stock firmware through
factory TFTP recovery.
Because kernel partition was enlarged, compared to stock
firmware, the kernel and rootfs MTDs don't align anymore, and you need
to carve out required data if you only have backup from stock FW:
- Prepare kernel image
cat mtd12_kernel.bin mtd13_rootfs.bin > owrt_kernel.bin
truncate -s 4M owrt_kernel_restore.bin
- Cut off first 1MB from rootfs
dd if=mtd13_rootfs.bin of=owrt_rootfs.bin bs=1M skip=1
- Prepare image to write to "ubi" meta-partition:
cat mtd6_reserved2.bi mtd7_cfg-param.bin mtd8_log.bin mtd9_oops.bin \
mtd10_reserved3.bin mtd11_web.bin owrt_rootfs.bin > \
owrt_ubi_ubi_restore.bin
You can skip the "fota" partition altogether,
it is used only for stock firmware update purposes and can be overwritten
safely anyway. The same is true for "data" partition which on my device
was found to be unused at all. Restoring mtd5_cfg-param.bin will restore
the stock firmware configuration you had before.
Method 1: Using initramfs:
This method is recmmended if you took your backup from within OpenWrt
initramfs, as the reassembly is not needed.
- Boot to initramfs as in step 3:
- Completely detach ubi0 partition using ubidetach /dev/ubi0_0
- Look up the kernel and ubi partitions in /proc/mtd
- Copy over the stock kernel image using scp to /tmp
- Erase kernel and restore stock kernel:
(scp mtd4_kernel.bin root@192.168.1.1:/tmp/)
mtd write <kernel_mtd> mtd4_kernel.bin
rm mtd4_kernel.bin
- Copy over the stock partition backups one-by-one using scp to /tmp, and
restore them individually. Otherwise you might run out of space in
tmpfs:
(scp mtd3_ubiconcat0.bin root@192.168.1.1:/tmp/)
mtd write <ubiconcat0_mtd> mtd3_ubiconcat0.bin
rm mtd3_ubiconcat0.bin
(scp mtd5_ubiconcat1.bin root@192.168.1.1:/tmp/)
mtd write <ubiconcat1_mtd> mtd5_ubiconcat1.bin
rm mtd5_ubiconcat1.bin
- If the write was correct, force a device reboot with
reboot -f
Method 2: Using live OpenWrt system (NOT RECOMMENDED):
- Prepare a USB flash drive contatining MTD backup files
- Ensure you have kmod-usb-storage and filesystem driver installed for
your drive
- Mount your flash drive
mkdir /tmp/usb
mount /dev/sda1 /tmp/usb
- Remount your UBI volume at /overlay to R/O
mount -o remount,ro /overlay
- Write back the kernel and ubi partitions from USB drive
cd /tmp/usb
mtd write mtd4_kernel.bin /dev/<kernel_mtd>
mtd write mtd9_ubi.bin /dev/<kernel_ubi>
- If everything went well, force a device reboot with
reboot -f
Last image may be truncated a bit due to lack of space in RAM, but this will happen over "fota"
MTD partition which may be safely erased after reboot anyway.
Method 3: using built-in TFTP recovery:
This method is recommended if you took backups using stock firmware.
- Assemble a recovery rootfs image from backup of stock partitions by
concatenating "web", "kernel", "rootfs" images dumped from the device,
as "root_uImage"
- Use it in place of "root_uImage" recovery initramfs image as in the
TFTP pre-installation method.
Quirks and known issuesa
- It was observed, that CH340-based USB-UART converters output garbage
during U-boot phase of system boot. At least CP2102 is known to work
properly.
- Kernel partition size is increased to 4MB compared to stock 3MB, to
accomodate future kernel updates - at this moment OpenWrt 5.10 kernel
image is at 2.5MB which is dangerously close to the limit. This has no
effect on booting the system - but keep that in mind when reassembling
an image to restore stock firmware.
- uqmi seems to be unable to change APN manually, so please use the one
you used before in stock firmware first. If you need to change it,
please use protocok '3g' to establish connection once, or use the
following command to change APN (and optionally IP type) manually:
echo -ne 'AT+CGDCONT=1,"IP","<apn>' > /dev/ttyUSB0
- The only usable LED as a "system LED" is the blue debug LED hidden
inside the case. All other LEDs are controlled by modem, on which the
router part has some influence only on Wi-Fi LED.
- Wi-Fi LED currently doesn't work while under OpenWrt, despite having
correct GPIO mapping. All other LEDs are controlled by modem,
including this one in stock firmware. GPIO19, mapped there only acts
as a gate, while the actual signal source seems to be 5GHz Wi-Fi
radio, however it seems it is not the LED exposed by ath10k as
ath10k-phy0.
- GPIO5 used for modem reset is a suicide switch, causing a hardware
reset of whole board, not only the modem. It is attached to
gpio-restart driver, to restart the modem on reboot as well, to ensure
QMI connectivity after reboot, which tends to fail otherwise.
- Modem, as in MF283+, exposes root shell over ADB - while not needed
for OpenWrt operation at all - have fun lurking around.
The same modem module is used as in older MF286.
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
The Zyxel EMG2926-Q10A is 99% the Zyxel NBG6716, but the bootloader
expects a different product name when flashing over TFTP. Also, the
EMG2926-Q10A always has 128 MiB of NAND flash whereas the NBG6716
reportedly can have either 128 MiB or 256 MiB.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
The LED and LAN port numbering on the case of wndr4500v3 devices are
reversed relative to the wndr4300v2. I created this patch to so that the
ordering in OpenWRT will be consistent with that.
Signed-off-by: Graham Cole <diakka@gmail.com>
ZTE MF286 is an indoor LTE category 6 CPE router with simultaneous
dual-band 802.11ac plus 802.11n Wi-Fi radios and quad-port gigabit
Ethernet switch, FXS and external USB 2.0 port.
Hardware highlights:
- CPU: QCA9563 SoC at 775MHz,
- RAM: 128MB DDR2,
- NOR Flash: MX25L1606E 2MB SPI Flash, for U-boot only,
- NAND Flash: GD5F1G04UBYIG 128MB SPI NAND-Flash, for all other data,
- Wi-Fi 5GHz: QCA9882 2x2 MIMO 802.11ac radio,
- WI-Fi 2.4GHz: QCA9563 3x3 MIMO 802.11n radio,
- Switch: QCA8337v2 4-port gigabit Ethernet, with single SGMII CPU port,
- WWAN: MDM9230-based category 6 internal LTE modem in extended
mini-PCIE form factor, with 3 internal antennas and 2 external antenna
connections, single mini-SIM slot. Modem model identified as MF270,
- FXS: one external ATA port (handled entirely by modem part) with two
physical connections in parallel,
- USB: Single external USB 2.0 port,
- Switches: power switch, WPS, Wi-Fi and reset buttons,
- LEDs: Wi-Fi, Test (internal). Rest of LEDs (Phone, WWAN, Battery,
Signal state) handled entirely by modem. 4 link status LEDs handled by
the switch on the backside.
- Battery: 3Ah 1-cell Li-Ion replaceable battery, with charging and
monitoring handled by modem.
- Label MAC device: eth0
Console connection: connector X2 is the console port, with the following
pinout, starting from pin 1, which is the topmost pin when the board is
upright:
- VCC (3.3V). Do not use unless you need to source power for the
converer from it.
- TX
- RX
- GND
Default port configuration in U-boot as well as in stock firmware is
115200-8-N-1.
Installation:
Due to different flash layout from stock firmware, sysupgrade from
within stock firmware is impossible, despite it's based on QSDK which
itself is based on OpenWrt.
STEP 0: Stock firmware update:
As installing OpenWrt cuts you off from official firmware updates for
the modem part, it is recommended to update the stock firmware to latest
version before installation, to have built-in modem at the latest firmware
version.
STEP 1: gaining root shell:
Method 1:
This works if busybox has telnetd compiled in the binary.
If this does not work, try method 2.
Using well-known exploit to start telnetd on your router - works
only if Busybox on stock firmware has telnetd included:
- Open stock firmware web interface
- Navigate to "URL filtering" section by going to "Advanced settings",
then "Firewall" and finally "URL filter".
- Add an entry ending with "&&telnetd&&", for example
"http://hostname/&&telnetd&&".
- telnetd will immediately listen on port 4719.
- After connecting to telnetd use "admin/admin" as credentials.
Method 2:
This works if busybox does not have telnetd compiled in. Notably, this
is the case in DNA.fi firmware.
If this does not work, try method 3.
- Set IP of your computer to 192.168.1.22.
- Have a TFTP server running at that address
- Download MIPS build of busybox including telnetd, for example from:
https://busybox.net/downloads/binaries/1.21.1/busybox-mips
and put it in it's root directory. Rename it as "telnetd".
- As previously, login to router's web UI and navigate to "URL
filtering"
- Using "Inspect" feature, extend "maxlength" property of the input
field named "addURLFilter", so it looks like this:
<input type="text" name="addURLFilter" id="addURLFilter" maxlength="332"
class="required form-control">
- Stay on the page - do not navigate anywhere
- Enter "http://aa&zte_debug.sh 192.168.1.22 telnetd" as a filter.
- Save the settings. This will download the telnetd binary over tftp and
execute it. You should be able to log in at port 23, using
"admin/admin" as credentials.
Method 3:
If the above doesn't work, use the serial console - it exposes root shell
directly without need for login. Some stock firmwares, notably one from
finnish DNA operator lack telnetd in their builds.
STEP 2: Backing up original software:
As the stock firmware may be customized by the carrier and is not
officially available in the Internet, IT IS IMPERATIVE to back up the
stock firmware, if you ever plan to returning to stock firmware.
Method 1: after booting OpenWrt initramfs image via TFTP:
PLEASE NOTE: YOU CANNOT DO THIS IF USING INTERMEDIATE FIRMWARE FOR INSTALLATION.
- Dump stock firmware located on stock kernel and ubi partitions:
ssh root@192.168.1.1: cat /dev/mtd4 > mtd4_kernel.bin
ssh root@192.168.1.1: cat /dev/mtd8 > mtd8_ubi.bin
And keep them in a safe place, should a restore be needed in future.
Method 2: using stock firmware:
- Connect an external USB drive formatted with FAT or ext4 to the USB
port.
- The drive will be auto-mounted to /var/usb_disk
- Check the flash layout of the device:
cat /proc/mtd
It should show the following:
mtd0: 00080000 00010000 "uboot"
mtd1: 00020000 00010000 "uboot-env"
mtd2: 00140000 00020000 "fota-flag"
mtd3: 00140000 00020000 "caldata"
mtd4: 00140000 00020000 "mac"
mtd5: 00600000 00020000 "cfg-param"
mtd6: 00140000 00020000 "oops"
mtd7: 00800000 00020000 "web"
mtd8: 00300000 00020000 "kernel"
mtd9: 01f00000 00020000 "rootfs"
mtd10: 01900000 00020000 "data"
mtd11: 03200000 00020000 "fota"
Differences might indicate that this is NOT a vanilla MF286 device but
one of its later derivatives.
- Copy over all MTD partitions, for example by executing the following:
for i in 0 1 2 3 4 5 6 7 8 9 10 11; do cat /dev/mtd$i > \
/var/usb_disk/mtd$i; done
- If the count of MTD partitions is different, this might indicate that
this is not a standard MF286 device, but one of its later derivatives.
- (optionally) rename the files according to MTD partition names from
/proc/mtd
- Unmount the filesystem:
umount /var/usb_disk; sync
and then remove the drive.
- Store the files in safe place if you ever plan to return to stock
firmware. This is especially important, because stock firmware for
this device is not available officially, and is usually customized by
the mobile providers.
STEP 3: Booting initramfs image:
Method 1: using serial console (RECOMMENDED):
- Have TFTP server running, exposing the OpenWrt initramfs image, and
set your computer's IP address as 192.168.1.22. This is the default
expected by U-boot. You may wish to change that, and alter later
commands accordingly.
- Connect the serial console if you haven't done so already,
- Interrupt boot sequence by pressing any key in U-boot when prompted
- Use the following commands to boot OpenWrt initramfs through TFTP:
setenv serverip 192.168.1.22
setenv ipaddr 192.168.1.1
tftpboot 0x81000000 openwrt-ath79-nand-zte_mf286-initramfs-kernel.bin
bootm 0x81000000
(Replace server IP and router IP as needed). There is no emergency
TFTP boot sequence triggered by buttons, contrary to MF283+.
- When OpenWrt initramfs finishes booting, proceed to actual
installation.
Method 2: using initramfs image as temporary boot kernel
This exploits the fact, that kernel and rootfs MTD devices are
consecutive on NAND flash, so from within stock image, an initramfs can
be written to this area and booted by U-boot on next reboot, because it
uses "nboot" command which isn't limited by kernel partition size.
- Download the initramfs-kernel.bin image
- Split the image into two parts on 3MB partition size boundary, which
is the size of kernel partition. Pad the output of second file to
eraseblock size:
dd if=openwrt-ath79-nand-zte_mf286-initramfs-kernel.bin \
bs=128k count=24 \
of=openwrt-ath79-zte_mf286-intermediate-kernel.bin
dd if=openwrt-ath79-nand-zte_mf286-initramfs-kernel.bin \
bs=128k skip=24 conv=sync \
of=openwrt-ath79-zte_mf286-intermediate-rootfs.bin
- Copy over /usr/bin/flash_eraseall and /usr/bin/nandwrite utilities to
/tmp. This is CRITICAL for installation, as erasing rootfs will cut
you off from those tools on flash!
- After backing up the previous MTD contents, write the images to the
respective MTD devices:
/tmp/flash_eraseall /dev/<kernel-mtd>
/tmp/nandwrite /dev/<kernel-mtd> \
/var/usb_disk/openwrt-ath79-zte_mf286-intermediate-kernel.bin
/tmp/flash_eraseall /dev/<kernel-mtd>
/tmp/nandwrite /dev/<rootfs-mtd> \
/var/usb_disk/openwrt-ath79-zte_mf286-intermediate-rootfs.bin
- Ensure that no bad blocks were present on the devices while writing.
If they were present, you may need to vary the split between
kernel and rootfs parts, so U-boot reads a valid uImage after skipping
the bad blocks. If it fails, you will be left with method 3 (below).
- If write is OK, reboot the device, it will reboot to OpenWrt
initramfs:
reboot -f
- After rebooting, SSH into the device and use sysupgrade to perform
proper installation.
Method 3: using built-in TFTP recovery (LAST RESORT):
- With that method, ensure you have complete backup of system's NAND
flash first. It involves deliberately erasing the kernel.
- Download "-initramfs-kernel.bin" image for the device.
- Prepare the recovery image by prepending 8MB of zeroes to the image,
and name it root_uImage:
dd if=/dev/zero of=padding.bin bs=8M count=1
cat padding.bin openwrt-ath79-nand-zte_mf286-initramfs-kernel.bin >
root_uImage
- Set up a TFTP server at 192.0.0.1/8. Router will use random address
from that range.
- Put the previously generated "root_uImage" into TFTP server root
directory.
- Deliberately erase "kernel" partition" using stock firmware after
taking backup. THIS IS POINT OF NO RETURN.
- Restart the device. U-boot will attempt flashing the recovery
initramfs image, which will let you perform actual installation using
sysupgrade. This might take a considerable time, sometimes the router
doesn't establish Ethernet link properly right after booting. Be
patient.
- After U-boot finishes flashing, the LEDs of switch ports will all
light up. At this moment, perform power-on reset, and wait for OpenWrt
initramfs to finish booting. Then proceed to actual installation.
STEP 4: Actual installation:
- scp the sysupgrade image to the device:
scp openwrt-ath79-nand-zte_mf286-squashfs-sysupgrade.bin \
root@192.168.1.1:/tmp/
- ssh into the device and execute sysupgrade:
sysupgrade -n /tmp/openwrt-ath79-nand-zte_mf286-squashfs-sysupgrade.bin
- Wait for router to reboot to full OpenWrt.
STEP 5: WAN connection establishment
Since the router is equipped with LTE modem as its main WAN interface, it
might be useful to connect to the Internet right away after
installation. To do so, please put the following entries in
/etc/config/network, replacing the specific configuration entries with
one needed for your ISP:
config interface 'wan'
option proto 'qmi'
option device '/dev/cdc-wdm0'
option auth '<auth>' # As required, usually 'none'
option pincode '<pin>' # If required by SIM
option apn '<apn>' # As required by ISP
option pdptype '<pdp>' # Typically 'ipv4', or 'ipv4v6' or 'ipv6'
For example, the following works for most polish ISPs
config interface 'wan'
option proto 'qmi'
option device '/dev/cdc-wdm0'
option auth 'none'
option apn 'internet'
option pdptype 'ipv4'
If you have build with LuCI, installing luci-proto-qmi helps with this
task.
Restoring the stock firmware:
Preparation:
If you took your backup using stock firmware, you will need to
reassemble the partitions into images to be restored onto the flash. The
layout might differ from ISP to ISP, this example is based on generic stock
firmware.
The only partitions you really care about are "web", "kernel", and
"rootfs". For easy padding and possibly restoring configuration, you can
concatenate most of them into images written into "ubi" meta-partition
in OpenWrt. To do so, execute something like:
cat mtd5_cfg-param.bin mtd6-oops.bin mtd7-web.bin mtd9-rootfs.bin > \
mtd8-ubi_restore.bin
You can skip the "fota" partition altogether,
it is used only for stock firmware update purposes and can be overwritten
safely anyway. The same is true for "data" partition which on my device
was found to be unused at all. Restoring mtd5_cfg-param.bin will restore
the stock firmware configuration you had before.
Method 1: Using initramfs:
- Boot to initramfs as in step 3:
- Completely detach ubi0 partition using ubidetach /dev/ubi0_0
- Look up the kernel and ubi partitions in /proc/mtd
- Copy over the stock kernel image using scp to /tmp
- Erase kernel and restore stock kernel:
(scp mtd4_kernel.bin root@192.168.1.1:/tmp/)
mtd write <kernel_mtd> mtd4_kernel.bin
rm mtd4_kernel.bin
- Copy over the stock partition backups one-by-one using scp to /tmp, and
restore them individually. Otherwise you might run out of space in
tmpfs:
(scp mtd3_ubiconcat0.bin root@192.168.1.1:/tmp/)
mtd write <ubiconcat0_mtd> mtd3_ubiconcat0.bin
rm mtd3_ubiconcat0.bin
(scp mtd5_ubiconcat1.bin root@192.168.1.1:/tmp/)
mtd write <ubiconcat1_mtd> mtd5_ubiconcat1.bin
rm mtd5_ubiconcat1.bin
- If the write was correct, force a device reboot with
reboot -f
Method 2: Using live OpenWrt system (NOT RECOMMENDED):
- Prepare a USB flash drive contatining MTD backup files
- Ensure you have kmod-usb-storage and filesystem driver installed for
your drive
- Mount your flash drive
mkdir /tmp/usb
mount /dev/sda1 /tmp/usb
- Remount your UBI volume at /overlay to R/O
mount -o remount,ro /overlay
- Write back the kernel and ubi partitions from USB drive
cd /tmp/usb
mtd write mtd4_kernel.bin /dev/<kernel_mtd>
mtd write mtd8_ubi.bin /dev/<kernel_ubi>
- If everything went well, force a device reboot with
reboot -f
Last image may be truncated a bit due to lack of space in RAM, but this will happen over "fota"
MTD partition which may be safely erased after reboot anyway.
Method 3: using built-in TFTP recovery (LAST RESORT):
- Assemble a recovery rootfs image from backup of stock partitions by
concatenating "web", "kernel", "rootfs" images dumped from the device,
as "root_uImage"
- Use it in place of "root_uImage" recovery initramfs image as in the
TFTP pre-installation method.
Quirks and known issues
- Kernel partition size is increased to 4MB compared to stock 3MB, to
accomodate future kernel updates - at this moment OpenWrt 5.10 kernel
image is at 2.5MB which is dangerously close to the limit. This has no
effect on booting the system - but keep that in mind when reassembling
an image to restore stock firmware.
- uqmi seems to be unable to change APN manually, so please use the one
you used before in stock firmware first. If you need to change it,
please use protocok '3g' to establish connection once, or use the
following command to change APN (and optionally IP type) manually:
echo -ne 'AT+CGDCONT=1,"IP","<apn>' > /dev/ttyUSB0
- The only usable LED as a "system LED" is the green debug LED hidden
inside the case. All other LEDs are controlled by modem, on which the
router part has some influence only on Wi-Fi LED.
- Wi-Fi LED currently doesn't work while under OpenWrt, despite having
correct GPIO mapping. All other LEDs are controlled by modem,
including this one in stock firmware. GPIO19, mapped there only acts
as a gate, while the actual signal source seems to be 5GHz Wi-Fi
radio, however it seems it is not the LED exposed by ath10k as
ath10k-phy0.
- GPIO5 used for modem reset is a suicide switch, causing a hardware
reset of whole board, not only the modem. It is attached to
gpio-restart driver, to restart the modem on reboot as well, to ensure
QMI connectivity after reboot, which tends to fail otherwise.
- Modem, as in MF283+, exposes root shell over ADB - while not needed
for OpenWrt operation at all - have fun lurking around.
- MAC address shift for 5GHz Wi-Fi used in stock firmware is
0x320000000000, which is impossible to encode in the device tree, so I
took the liberty of using MAC address increment of 1 for it, to ensure
different BSSID for both Wi-Fi interfaces.
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
