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2021.09.00
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@davidlt davidlt released this 29 Sep 14:29
2021.09.00
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This release includes major changes compared previous Freedom U SDK (FUSDK). The main changes include:

  • Layers (openembedded-core, meta-openemedded, meta-riscv, meta-clang, meta-tensorflow-lite) were updated to their latest revisions.
  • libinput 1.17.0 was removed from meta-sifive layer. Newer version is now available from openenmedded-core layer.
  • mesa was updated to 21.2.1.
  • stress-ng was updated to 0.13.01.
  • linux-mainline_5.13 (Linux kernel) was updated to v5.13.17.
  • u-boot was refactored and converted to bbappend instead of a modified copy from openembedded-core layer.
  • tune-riscv.inc was introduced in meta-sifive layer to provide two new options (sifive-5-series and sifive-7-series) which adds -mtune=sifive-{5,7}-series compiler options for all the packages.
  • Unmatched machine DEFAULTTUNE is now changed from riscv64 to sifive-7-series. This setting can be changed in the local configuration file if the user wants to revert back to riscv64.
  • opensbi was updated to a git version (commit bd355213b).
  • glibc was updated to 2.34.

Known Issues

  1. 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
  2. We have found an issue with SanDisk "A2" microSD cards and thus do not recommend them.
  3. 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.
  4. 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.
  5. 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.
  6. Restart is not implemented in software for HiFive Unmatched.
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