FreeBSD 14.0 RELEASE does not support the RK3588 SoC, but thanks to Tianocore EDKII UEFI it is possible to use different operating systems, including FreeBSD.

It was necessary to add a USB 2.0 driver for ACPI mode and fix the operation of the UART driver in this mode.

And now FreeBSD can be run on OrangePi 5 Plus from an SD card. The OS itself does not yet have a driver for an SD card and eMMC, but the system can be installed on a USB FLASH or NVMe SSD.

HDMI, USB 2.0, USB 3.0, NVMe, Ethernet will work.

I did burn image of FreeBSD-aarch64-14.0-RELEASE-OrangePi-5P-20231111.img.xz and FreeBSD-aarch64-14.0-RELEASE-OrangePi-5P-20231209.img.xz onto microSD, but failed to boot.