In the past few years, we have received several reports about SPI
Flash not working properly. This is caused by excessively fast
clock frequency. It's really annoying to fix them one by one. Let's
reduce these aggressive frequencies to 50 MHz. This is a safe and
suggested value in the vendor SDK.
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
(cherry picked from commit 73eeac49be)
Link: https://github.com/openwrt/openwrt/pull/15919
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
MR600 V2(EU) is an LTE router that also supports 4G+ band aggregation
etc. and can reportedly achieve higher bandwidth with it.
- Specifications:
* SoC: Mediatek MT7621DAT 880MHz
* RAM: 128MB DDR3
* Flash: 16MB SPI NOR flash (GD25Q128C)
* LTE Modem: Qualcomm MDM9240
* WiFi 5GHz: Mediatek MT7613BEN
* WiFi 2.4GHz: Mediatek MT7603EN
* Ethernet: MT7530, 4x 1000Base-T.
* UART: Serial console (115200 8n1), J1(GND:3)
* Buttons: Reset, WPS.
* LED: Power, WAN, LTE, WiFi 2GHz and 5GHz, LAN, Signal1, Signal2,
Signal3
- MAC Addresses:
OEM firmware configuration:
54:af:97:xx:xx:7b : 2.4G
54:af:97:xx:xx:7a : 5G
54:af:97:xx:xx:7c : LTE
54:af:97:xx:xx:7b : LAN (label)
54:af:97:xx:xx:7c : WAN
- Installation:
1. Download the OpenWrt initramfs-image.
Place it into a TFTP server root directory and rename it to openwrt.img
Configure the TFTP server to listen at 192.168.0.5/24.
3. Connect to the serial console.
Attach power and interrupt the boot procedure when prompted (type `tpl`).
Credentials are admin / 1234
4. Configure U-Boot for booting OpenWrt from ram
$ tftpboot
$ bootm
5. Transfer the OpenWrt sysupgrade image to the device.
- LTE:
In order to setup the wwan0 interface:
1. Add a `qmi` proto interface under `/etc/config/network`, e.g.:
```
config interface 'wwan0'
option device '/dev/cdc-wdm0'
option proto 'qmi'
option pincode 'XXXX'
option apn 'your_isp_apn'
```
2. Add `wwan0` interface to the `wan` firewall zone
3. `/etc/init.d/network restart`
Signed-off-by: Linos Giannopoulos <linosgian00@gmail.com>
