Arm64 Ampere support


FreeBSD/ARM64 on the Ampere processor family

What is Ampere?

Ampere is a Arm64 CPU manufacturer, focusing on hyper converged cloud infrastructure. There are 2 main CPUs publically available:

eMAG cpu in Lenovo HR330A / HR350A

These servers are based on the Ampere eMAG chipset. The initial bring-up work is complete, and they are well supported from 13.0-RELEASE onwards. A number of FreeBSD developers have these systems, and Ampere has generously contributed further servers to the FreeBSD Foundation, destined for build & development clusters.

Ampere and FreeBSD

FreeBSD has full support from 13.0-RELEASE and further improvements are in development. If you have questions, please ask on the freebsd-arm@ mailing list.

How to Boot

Install from USB as per normal. The installer should run without change via the platform's remote console, so long as you plug in both the management & the normal ethernet ports.

Pre-Built Images

Use either mini memstick or any of the default images (i.e. not rock64, rasbpi etc).

Features

What works

- lots of stuff

What doesn't

- temperature / sensors - cpu frequency - fan control - ipmi ??

Known Issues/hints

eMAG

To boot to ZFS you will need to specify additional loader parameters:

# /boot/loader.conf
kern.geom.label.disk_ident.enable="0"
kern.geom.label.gptid.enable="0"

#storage bits
opensolaris_load="YES"
zfs_load="YES"
cryptodev_load="YES"
# use CAM device on intel NVMe driver
hw.nvme.use_nvd=0

# filesystems
xz_load="YES"
tmpfs_load="YES"

# network
linuxkpi_load="YES"
mlx5_load="YES"
mlx5en_load="YES"
mlxfw_load="YES"

# serial over ipmi
autoboot_delay="3"
beastie_disable="YES"
boot_multicons="YES"
boot_serial="YES"
console="efi"


CategoryHowTo CategoryHowTo

arm/Ampere (last edited 2021-07-02T08:16:25+0000 by DaveCottlehuber)