SiS not working with atamkIII

hi,

with recent current (including atamkIII) freebsd is not able to find any ata
device. with pre-atamkIII it was ok.

configuration is this:

atapci0_at_pci0:2:5:       class=0x010180 card=0x55131039 chip=0x55131039 rev=0xd0
hdr=0x00
vendor   = 'Silicon Integrated Systems (SiS)'
device   = 'SiS5513 EIDE Controller (A,B step)'
class    = mass storage
subclass = ATA

spravci ~# dmesg | grep ata
atapci0: <SiS 735 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0
xff00-0xff0f at device 2.5 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0

spravci ~# atacontrol list
ATA channel 0:
Master:  ad0 <ST380011A/8.01> ATA/ATAPI revision 6
Slave:  acd0 <SONY CD-RW CRX175A1/5YS3> ATA/ATAPI revision 0
ATA channel 1:
Master:      no device present
Slave:       no device present


anything else I can provide?

roman