VIA VT8237R+ chipset

[alexandre.delay at free.fr]

Maybe it's not this controller which is the cause of all my problems, but I got
this at startup each time I use this motherboard (HDD works perfect on an other
motherboard):

_________
FreeBSD 5.4-RELEASE #2: Mon May 14 11:13:21 CEST
...
atapci0: <VIA 6420 SATA150 controller> port
0xf700-0xf70f,0xf800-0xf803,0xf900-0xf907,0xfa00-0xfa03,0xfb00-0xfb07 irq 20 at
device 15.0 on pci0
...
ata2: channel #0 on atapci0
ata3: channel #1 on atapci0
...
atapci1: <VIA 8237 UDMA133 controller> port
0xf600-0xf60f,0x376,0x170-0x177,0x3fd6,0x1f0-0x1f7 at device 15.1 on pci0
...
ata0: channel #0 on atapci1
...
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
...
Timecounter "TSC" frequency 1499842713 Hz quality 800
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=84<ICRC,ABORTED> LBA=0
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=84<ICRC,ABORTED> LBA=0
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=84<ICRC,ABORTED> LBA=0
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=0
ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=84<ICRC,ABORTED> LBA=0
Mounting root from ufs:/dev/ad0s1a
setrootbyname failed
ffs_mountroot: can't find rootvp
Root mount failed: 6

Manual root filesystem specification:
  <fstype>:<device>  Mount <device> using filesystem <fstype>
                       eg. ufs:da0s1a
  ?                  List valid disk boot devices
  <empty line>       Abort manual input

mountroot>

________________

I got, on my motherboard: VIA VT8237R+ chipset and CN700. The CN700 controls
SATA raid and the VT8237R+ controls EIDE. As my disk is connected via EIDE, I
supposed that the problem came from the VT8237R+ chipset

Cheers

Alex