[PATCH v2] ath79: add support for Ubiquiti NanoBeam M5

[Matthias Schiffer]

On 27/03/2022 21:25, git at aiyionpri.me wrote:
> From: Jan-Niklas Burfeind <git at aiyionpri.me>
> 
> Ubiquiti NanoBeam M5 devices are CPE equipment for customer locations
> with one Ethernet port and a 5 GHz 300Mbps wireless interface.

Please provide the output of dmesg after boot - I'd like to check a few 
things. Also see my comments below.


> 
> Specificatons:
> 
> - Atheros AR9342
> - 535 MHz CPU
> - 64 MB RAM
> - 8 MB Flash
> - 1x 10/100 Mbps Ethernet with passive PoE input (24 V)
> - 6 LEDs of which four are rssi
> - 1 reset button
> - UART (4-pin) header on PCB
> 
> Notes:
> 
> The device was supported by OpenWrt in ar71xx.
> 
> Flash instructions (web/ssh/tftp):
> 
> Loading the image via ssh vias a stock firmware prior "AirOS 5.6".
> Downgrading stock is possible.
> 
> * Flashing is possible via AirOS software update page:
> The "factory" ROM image is recognized as non-native and then installed correctly.
> AirOS warns to better be familiar with the recovery procedure.
> 
> * Flashing can be done via ssh, which is becoming difficult due to legacy
> keyexchange methods.
> 
> This is an exempary ssh-config:
> KexAlgorithms +diffie-hellman-group1-sha1
> HostKeyAlgorithms ssh-rsa
> PubkeyAcceptedKeyTypes ssh-rsa
> User ubnt
> 
> The password is ubnt.
> 
> Connecting via IPv6 link local worked best for me.
> 
> 1. scp the factory image to /tmp
> 2. fwupdate.real -m /tmp/firmware_image_file.bin -d
> 
> * Alternatively tftp is possible:
> 
> 1. Configure PC with static IP 192.168.1.2/24.
> 2. Enter the rescue mode. Power off the device, push the reset button on
>     the device (or the PoE) and keep it pressed.
>     Power on the device, while still pushing the reset button.
> 3. When all the leds blink at the same time, release the reset button.
> 4. Upload the firmware image file via TFTP:
> 
> tftp 192.168.1.20
> tftp> bin
> tftp> trace
> Packet tracing on.
> tftp> put firmware_image.bin
> 
> Signed-off-by: Jan-Niklas Burfeind <git at aiyionpri.me>
> ---
>   .../ath79/dts/ar9342_ubnt_nanobeam-m5.dts     | 26 +++++++++++++++++++
>   target/linux/ath79/image/generic-ubnt.mk      |  8 ++++++
>   2 files changed, 34 insertions(+)
>   create mode 100644 target/linux/ath79/dts/ar9342_ubnt_nanobeam-m5.dts
> 
> diff --git a/target/linux/ath79/dts/ar9342_ubnt_nanobeam-m5.dts b/target/linux/ath79/dts/ar9342_ubnt_nanobeam-m5.dts
> new file mode 100644
> index 0000000000..6de557d990
> --- /dev/null
> +++ b/target/linux/ath79/dts/ar9342_ubnt_nanobeam-m5.dts
> @@ -0,0 +1,26 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
> +
> +#include "ar9342_ubnt_xw.dtsi"
> +
> +/ {
> +	compatible = "ubnt,nanostation-loco-m-xw", "ubnt,xw", "qca,ar9342";
Primary compatible string should not be reused from another DTS.

> +	model = "Ubiquiti NanoBeam M5";
Model name should end with " (XW)" for consistency with other Airmax XW 
devices.

Do you know if the same image works on the M2 as well? I see that Bullet, 
Nanostation and Nanostation loco only have one image for both, but the 
PowerBeam needs separate images because of differing PHY addresses.

If you don't have an M2 to test, let's keep the "M5" in the name for now.

> +};
> +
> +&mdio0 {
> +	status = "okay";
> +
> +	phy-mask = <0x1>;
> +
> +	phy1: ethernet-phy at 1 {
> +		reg = <1>;
> +		phy-mode = "mii";
> +		reset-gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
> +	};
> +};
> +
> +&eth0 {
> +	status = "okay";
> +
> +	phy-handle = <&phy1>;
> +};
> diff --git a/target/linux/ath79/image/generic-ubnt.mk b/target/linux/ath79/image/generic-ubnt.mk
> index 0b613df62b..9de83d42c2 100644
> --- a/target/linux/ath79/image/generic-ubnt.mk
> +++ b/target/linux/ath79/image/generic-ubnt.mk
> @@ -255,6 +255,14 @@ define Device/ubnt_nanobeam-ac-xc
>   endef
>   TARGET_DEVICES += ubnt_nanobeam-ac-xc
>   
> +define Device/ubnt_nanobeam-m5
> +  $(Device/ubnt-xw)
> +  DEVICE_MODEL := NanoBeam M5
> +  DEVICE_PACKAGES += rssileds
> +  SUPPORTED_DEVICES += loco-m-xw
> +endef
> +TARGET_DEVICES += ubnt_nanobeam-m5
> +
>   define Device/ubnt_nanobridge-m
>     $(Device/ubnt-xm)
>     SOC := ar7241

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