Works out of the box.

lspci -vmmnn:

Slot:	01:09.0
Class:	FireWire (IEEE 1394) [0c00]
Vendor:	VIA Technologies, Inc. [1106]
Device:	VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [3044]
SVendor:	VIA Technologies, Inc. [1106]
SDevice:	VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [3044]
Rev:	46
ProgIf:	10

lspci -nnk:

01:09.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044] (rev 46)
	Subsystem: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044]
	Kernel driver in use: firewire_ohci
	Kernel modules: firewire-ohci

lspci -vvnnk

02:04.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044] (rev 80) (prog-if 10 [OHCI])
	Subsystem: Hewlett-Packard Company VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [103c:2a24]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64 (8000ns max), Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 9
	NUMA node: 0
	Region 0: Memory at fdcfe000 (32-bit, non-prefetchable) [size=2K]
	Region 1: I/O ports at de00 [size=128]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2+,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Kernel driver in use: firewire_ohci
	Kernel modules: firewire_ohci