Yocto Scarthgap v25.1 Release for Tungsten Platforms We are pleased to announce our Yocto Scarthgap v25.1 Release for Tungsten Platforms. This includes our Tunsgten510 SMARC and our Tungsten700 SMARC. This release is based upon the Mediatek iot-yocto-v25.1 (Scarthgap) release and includes our 6.6 kernel. Below you will find a download link for the images as well as detailed instructions for building including a features set. Prebuilt Image You can download the Yocto images from here: (Two different images for each machine) Tungsten510: rity-demo-image 20260119-tungsten-510-smarc-yocto-scarthgap-25.1-nda.zip rity-browser-image 20260119-tungsten-510-smarc-yocto-scarthgap-25.1-browser-nda.zip Tungsten700: rity-demo-image 20260119-tungsten-700-smarc-yocto-scarthgap-25.1-nda.zip rity-browser-image 20260119-tungsten-700-smarc-yocto-scarthgap-25.1-browser-nda.zip How to Burn The .zip archive include all the files to be flashed using fastboot. Connect from your machine a serial-to-USB adapter to the “SERIAL” header and a USB-C cable to “J25” on the carrier board. First you need to enter fastboot mode from U-Boot prompt: => fastboot 0 If you are unable to get into fastboot mode from U-Boot, you can follow the this blog to recover your Tungsten platform. Next, unzip image: ~$ unzip *-tungsten-700-smarc-yocto-scarthgap*.zip -d Tungsten-Yocto ~$ cd Tungsten-Yocto Finally, flash the image(s): Flash bl2.img to mmc0boot0 partition: ~/Tungsten-Yocto$ fastboot flash mmc0boot0 bl2.img Flash wic.img to mmc0 partition: ~/Tungsten-Yocto$ fastboot flash mmc0 rity-*-image-tungsten-*-smarc.wic.img Build procedure This image uses the scarthgap-mtk-v25.1 branch of our yocto-manfiest repository. To build the image, we recommend using a Docker Container so that you can build with a reproducible and stable build environment. Otherwise, you’ll need these packages installed as well as this repo tool that can be installed like this: ~$ sudo apt-get install repo Now we are ready to build the image. First, download the BSP yocto layers: ~$ mkdir ~/scarthgap-mtk && cd scarthgap-mtk ~/scarthgap-mtk$ repo init -u https://github.com/boundarydevices/yocto-manifest.git -b scarthgap-mtk-v25.1 ~/scarthgap-mtk$ repo sync Then, setup the environment for building. ~/scarthgap-mtk$ TEMPLATECONF=$PWD/src/meta-boundary/conf source src/poky/oe-init-build-env ~/scarthgap-mtk$ export BUILD_DIR=`pwd` Finally, set the Tungsten MACHINE and bitbake rity-demo-image Or for the browser image bitbake rity-browser-image ~/scarthgap-mtk/build$ MACHINE=tungsten-700-smarc bitbake rity-demo-image ~/scarthgap-mtk/build$ MACHINE=tungsten-700-smarc bitbake rity-browser-image After some time this should build the same image as above, with the layers being at commits as per the time when repo sync was executed. If you are interested in each project revision at the time of the build, you can find a frozen manifest for those images here. The image file will deploy to tmp/deploy/images/tungsten-700-smarc/rity-demo-image-tungsten-700-smarc.wic.img Or tmp/deploy/images/tungsten-700-smarc/rity-browser-image-tungsten-700-smarc.wic.img Features list The main changes with this new v25.1 version are: Yocto LTS Scarthgap updated to 5.0.12 Linux Kernel updated from 5.15.47 to 6.6.92 Mali GPU driver version in DDK keapt at r48 You can find more information about this release on MediaTek release notes: IoT Yocto v25.1 - 2025 December 30 On the connectivity side, this BSP still includes support for our Sona MT320 Wi-Fi 6 / Bluetooth 5.3 module. The next sub-sections will describe how to test most features. GPU acceleration To test GPU you can use glmark2: root@tungsten-700-smarc:~# glmark2-es2-wayland --fullscreen Ethernet Once the eth0 interface is up, you can use iperf3 to check Ethernet performances: root@tungsten-700-smarc:~# iperf3 -c 192.168.1.60 Connecting to host 192.168.1.60, port 5201 [ 5] local 192.168.1.13 port 32880 connected to 192.168.1.60 port 5201 [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 1.09 GBytes 938 Mbits/sec 0 sender [ 5] 0.00-10.04 sec 1.09 GBytes 932 Mbits/sec receiver Wi-Fi You can test Wi-Fi with nmcli as shown below: root@tungsten-700-smarc:~# nmcli d wifi connect <network_name> password <password> Device 'wlan0' successfully activated with '796c47ef-fb49-4b9b-9c7f-dc9d7250568f'. root@tungsten-700-smarc:~# iw wlan0 link Connected to 9a:dc:97:07:5b:5a (on wlan0) SSID: golfcourse freq: 5520 RX: 30561 bytes (215 packets) TX: 7899 bytes (63 packets) signal: -59 dBm rx bitrate: 864.8 MBit/s 80MHz HE-MCS 8 HE-NSS 2 HE-GI 0 HE-DCM 0 tx bitrate: 720.6 MBit/s 80MHz HE-MCS 7 HE-NSS 2 HE-GI 0 HE-DCM 0 bss flags: short-slot-time dtim period: 3 beacon int: 100 root@tungsten-700-smarc:~# ping google.com -Iwlan0 PING google.com (216.58.198.206): 56 data bytes 64 bytes from 216.58.198.206: seq=0 ttl=55 time=3.470 ms Bluetooth You can test bluetooth with hciconfig: root@tungsten-700-smarc:~# hciconfig hci0 up root@tungsten-700-smarc:~# hcitool scan Scanning ... 4C:BA:D7:64:CB:CD Iphone VPU decoding You can test VPU with gstreamer: root@tungsten-700-smarc:~# wget http://linode.boundarydevices.com/videos/SKYFALL-4K.mp4 root@tungsten-700-smarc:~# gst-launch-1.0 -v filesrc location=/home/root/SKYFALL-4K.mp4 \ ! parsebin ! v4l2h264dec ! queue \ ! v4l2convert output-io-mode=dmabuf-import capture-io-mode=dmabuf ! queue \ ! waylandsink fullscreen=true Display support Display configuration can be changed from U-Boot using the display_dtbo variable that can be set to: display-dp.dtbo: DisplayPort output display-dsi.dtbo: DSI0 output (with one of our MIPI-DSI displays) display-dsidp.dtbo: DSI0 + DisplayPort outputs display-dsiedp.dtbo: DSI0 + eDP outputs display-dsihdmi.dtbo: DSI0 + HDMI outputs display-edp.dtbo: eDP output display-edpdp.dtbo: eDP + DisplayPort outputs display-edphdmi.dtbo: eDP + HDMI outputs display-hdmi.dtbo: HDMI ouput (default) display-hdmidp.dtbo: HDMI + DisplayPort outputs Camera support Note that the current release has no verified Camera support so far. We are working on supporting the Arducam XISP cameras. We do have this supported in the Yocto kirkstone v24.1 release for Tungsten platforms. If you have any issues, please email support@ezurio.com
