Release 2022.01.00 · sifive/freedom-u-sdk

This release includes major changes compared previous Freedom-U-SDK (FUSDK) release. The notable changes include:

stress-ng was updated to V0.13.10.
nbd gained a new dependency on libnl to support netlink interface. This is preferred interface compared to ioctl. In additional to that netlink interface resolves IO errors during shutdown with systemd. --force/-f option for poweroff is not longer required if NBD rootfs is used.
opensbi was updated to 5d025eb2353550eadbd2fa9b8083a92fe9b07bd9. This includes SiFive HiFive Unmatched reset fix (WDT needs to be disabled before reset is triggered).

Known Issues

Newer OE/Yocto buildtools could cause build issues for nspr-native package. Use -r yocto-3.2_M2 -t 20200729 as described in README file if you are using OE/Yocto buildtools. See Yocto bug #14112
We have found an issue with SanDisk "A2" microSD cards and thus do not recommend them.
If the desktop is unresponsive/frozen (i.e. the keyboard doesn't work or/and the mouse doesn't work, the clock is not updating, etc.) try systemctl restart display-manager from the serial console.
If the keyboard or/and mouse is not responsive/frozen check if the input device is available under libinput list-devices and if events are registered by libinput debug-events in the console. If events are registered try systemctl restart display-manager from the serial console. Otherwise manually unplug and plug the keyboard or/and mouse.
If your desktop is very slow check Mesa OpenGL rendered (glxinfo | grep OpenGL). If it is OpenGL renderer string: llvmpipe restart the system. In rare cases Mesa might fallback to llvmpipe, but restart usually resolved the issue.
If NBD rootfs is used NetworkManager will not handle eth0 interface. This leads to resolv.conf not being generated (DNS resolving doesn't work), and system time is not synchronized via NTP. The Internet connection itself is working.