From Fedora Project Wiki

Fedora 21 AArch64 Hardware Support Matrix

#1

Hardware Firmware Kernel Version Console Network 10G Network SATA DVD USB PCI-E Notes
Applied Micro X-Gene (Mustang)
none
none
none
none
none
none
Advanced Micro Devices Opteron A1100 (aka Seattle)
none
none
none
none
none
none

#2

Applied Micro X-Gene (Mustang)

Kernel Firmware Console Network 10G Network SATA DVD USB PCI-E Virt Notes
kernel-3.17.4-302.fc21
none
none
none
none
none
none
none
kernel-3.18.0-1.fc22
none
none
none
none
none
none
none

Advanced Micro Devices Opteron A1100 (aka Seattle)

Kernel Firmware Console Network 10G Network SATA DVD USB PCI-E Virt Notes
kernel-3.17.4-302.fc21
none
none
none
none
none
none
none
kernel-3.18.0-1.fc22
none
none
none
none
none
none
none

#3

AArch64 Platform Support

Platform Firmware Kernel Console ACPI Network SATA DVD USB PCI-E Virt Notes
APM X-Gene (Mustang)
rh-0.13 kernel-3.17.4-302.fc21 ttyS0 Yes 1Gb
none
none
none
none
rh-0.13 kernel-3.18.0-1.fc22 ttyS0 Default 1Gb
none
none
none
none
ADM A1100 (Seattle)
ROD0073C kernel-3.17.4-302.fc21 ttySBSA0 Yes 1Gb
none
none
none
none
ROD0073C kernel-3.18.0-1.fc22 ttySBSA0 Default 1Gb
none
none
none
none
QEMU
N/A kernel-3.17.4-302.fc21 ttySBSA0 Yes
none
none
none
none
none
N/A kernel-3.18.0-1.fc22 ttySBSA0 Default
none
none
none
none
none