HiFive Unleashed

SiFive HiFive Unleashed is a RISC‑V development board featuring the Freedom U540 SoC. Its production is discontinued, but it's still supported by Sisyphus riscv64 port.

Regular Images and Simply Linux 10 were released for this board.

Quick start
TBD.

Setup with alt-rootfs-installer
Regular images starting from 20220120 cannot be written with the following command because they use U-Boot 2022.01. You can use the version of alt-rootfs-installer from the branch devel by specifying, or install manually.

You need alt-roofs-installer version 0.5.2 or higher.

In case of problems with older images, try using --target=HiFive-Unleashed-opensbi.

Manual setup
Starting with U-Boot 2022.01, a U-Boot SPL for Unleashed has been made (file ), which is recommended to be used instead of FSBL.

When using this U-Boot, installing an image for Unleashed is similar to Unmatched and can be done as described in HiFive_Unmatched.

All references to the  directory should be replaced with.

Disk image
To run images on SiFive HiFive Unleashed (FU540) SoC, follow these steps:

Step 0. Image write-in and mounting:

The root partition will be mounted in /run/media/root/

Step 1. Adding partitions for First Stage BootLoader (FSBL) and U-Boot :

Step 2.a. First Stage BootLoader (FSBL) and OpenSBI binaries are located on the root partition of the image. Write them into partitions 3 and 4, respectively:

Step 2.b. Alternative: download and install packages with FSBL and OpenSBI, then write down in partitions 3 and 4. For example, like this:

Step 3. Switch boot mode from EFI to extlinux.conf. To do this, we need to remove the boot toggle from the fat32 partition:

Root filesystem image
To run the SiFive HiFive Unleashed (FU540) SoC with one of the rootfs images one could proceed through the following steps:

Step 0. Through this manual it is assumed that microSD card is at /dev/sdb. Let us create file systems at the microSD:

Step 1.a. The First Stage BootLoader (FSBL) and OpenSBI are placed inside the unpacked /mnt tree. Let us write them to the 2 and 3 partitions respectively, and then unmount /mnt partition.

Step 1.b. Alternative option: download and install the First Stage BootLoader (FSBL) and OpenSBI for FU540.

For example:

Step 3. System at microSD is ready to boot. For a graphical system, the system setup is performed through VNC.