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2021.05.00
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@davidlt davidlt released this 31 May 17:19
2021.05.00
3d5ae0c

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

  • Layers (openembedded-core, meta-openemedded, meta-riscv, meta-clang) were updated to their latest revisions.
  • meta-clang layer was updated and brought back LLVM/Clang 12.0.0.
  • lmsensors now have supports for tmp451 temperature sensor on Unmatched.
  • The critical temperature (tmp451) for Unmatched was changed to 85C.
  • meta-filesystems layer (from meta-openembedded) is now included by default.
  • meta-tensorflow-lite layer was added (this is a scalar version, doesn't include support for RVV).
  • linux-mainline_5.12 was added as a new kernel for Unleashed and Unmatched (common kernel and configuration).
  • Notable kernel configuration changes:
    • More SATA controllers and features were enabled.
    • CONFIG_STRICT_DEVMEM and CONFIG_IO_STRICT_DEVMEM were enabled.
    • XFS file system support was added.
    • Btrfs file system support was added.
    • CONFIG_STRICT_KERNEL_RWX and CONFIG_STRICT_MODULE_RWX were enabled.
    • NVMe hwmon driver was enabled (temperatures will be reported by lmsensors).
    • CONFIG_STACKPROTECTOR and CONFIG_STACKPROTECTOR_PER_TASK were enabled.
  • Support for HiFive Unleashed Expansion Board from Microsemi was removed.
  • New packages added to demo-coreip-{cli,xfce4} disk images:
    • gdbserver
    • exfat-utils
    • xfsdump
    • xfsprogs
    • xfsprogs-fsck
    • xfsprogs-mkfs
    • xfsprogs-repair
    • btrfs-tools
    • python3-tensorflow-lite
    • python3-tensorflow-lite-demo-doc
  • Disabled earlycon via SBI for Unleashed. This is handled directly by the kernel as on Unmatched.
  • This is the first released compiled with GCC 11.
  • stress-ng was updated to 0.12.8.

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 the command from #6 above 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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