ramips: add support for Xiaomi Mi Router 4AC (100M Edition)

[Adrian Schmutzler]

> -----Original Message-----
> From: Sorin Pop [mailto:alexsorinpop at gmail.com]
> Sent: Sonntag, 6. Dezember 2020 02:06
> To: Adrian Schmutzler <mail at adrianschmutzler.de>
> Cc: openwrt-devel at lists.openwrt.org
> Subject: Re: ramips: add support for Xiaomi Mi Router 4AC (100M Edition)
> 
> The difference is the size of the overlay and partition table and the uboot
> that is used on the devices.
> 
> xiaomi_mir4a-100m uses bc160000 as entry point and xiaomi_mir4ac-100m
> uses bc260000 as entry point
> 
> from what I have seen mir4a is a CN version of MIR4AC which is EU.

What about WAN MAC address? Do you deviate from the MIR4A setup by intention there?

Can you link to any documentation about the MIR4AC?

Best

Adrian

> 
> On Sun, Dec 6, 2020 at 2:38 AM Adrian Schmutzler
> <mail at adrianschmutzler.de> wrote:
> >
> > > -----Original Message-----
> > > From: openwrt-devel [mailto:openwrt-devel-
> bounces at lists.openwrt.org]
> > > On Behalf Of Sorin Pop
> > > Sent: Sonntag, 6. Dezember 2020 00:54
> > > To: openwrt-devel at lists.openwrt.org
> > > Subject: ramips: add support for Xiaomi Mi Router 4AC (100M Edition)
> > >
> > > - SoC:      MediaTek MT7628AN
> > > - Flash:    16MB (Winbond W25Q128JV)
> > > - RAM:      64MB
> > > - Serial:   As marked on PCB, 3V3 logic, baudrate is 115200
> > > - Ethernet: 3x 10/100 Mbps (switched, 2x LAN + WAN)
> > > - WIFI0:    MT7628AN 2.4GHz 802.11b/g/n
> > > - WIFI1:    MT7612EN 5GHz 802.11ac
> > > - Antennas: 4x external (2 per radio), non-detachable
> > > - LEDs:     Programmable power-LED (two-colored, yellow/blue)
> > >             Non-programmable internet-LED (shows WAN-activity)
> > > - Buttons:  Reset
> >
> > So, the only difference in implementation is the size of overlay/firmware
> partitions?
> >
> > Best
> >
> > Adrian
> >
> > >
> > > INSTALLATION:
> > >
> > > 1. Connect to the serial port of the router and power it up.
> > >    If you get a prompt asking for boot-mode, go to step 3.
> > > 2. Unplug the router after
> > >        > Erasing SPI Flash...
> > >        > raspi_erase: offs:20000 len:10000
> > >    occurs on the serial port. Plug the router back in.
> > > 3. At the prompt select option 2 (Load system code then
> > >    write to Flash via TFTP.)
> > > 4. Enter 192.168.1.1 as the device IP and 192.168.1.2 as the
> > >    Server-IP.
> > > 5. Connect your computer to LAN1 and assign it as 192.168.1.2/24.
> > > 6. Serve the sysupgrade image via TFTP
> > >
> > > This router seems to have the same hardware as Xiaomi Mi Router 4A
> > > (100M
> > > Edition) but it uses a different U-Boot.
> > >
> > > Signed-off-by: Sorin Pop <alexsorinpop at gmail.com>
> 
> 
> 
> --
> Sorin Alexandru Pop
> Tel: +40-723-346437
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