port-i386/42543: PATA part of VIA 6421 host adapter not recognized in NetBSD 5.0

[Bernhard Moellemann <zza%serpens.de@localhost>]

>Number:         42543
>Category:       port-i386
>Synopsis:       PATA part of VIA 6421 host adapter not recognized
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 29 19:50:00 +0000 2009
>Originator:     Bernhard Moellemann
>Release:        NetBSD 5.0_STABLE from 29.12.2009
>Organization:
Home, sweet home
>Environment:
System: NetBSD arcanic 5.0_STABLE NetBSD 5.0_STABLE (MONOLITHIC) #0: Tue Dec 29 
14:34:08 CET 2009 
root@arcanic:/mnt/top/src/src-5a/obj/sys/arch/i386/compile/MONOLITHIC i386
Architecture: i386
Machine: i386
>Description:
 NetBSD 5.0 does not recognize drive(es?) connected to the PATA-Port
>How-To-Repeat:
 Boot NetBSD 5.0 with VIA 6421 host adapter (2 SATA ports and 1 PATA connetor)
 and it fails to recognisze the drive(es?) connected to the PATA-Port

The CDROM is discovered during the BIOS probe. But its not found
in autoconf:

From the dmesg:
 
...
azalia0: host: 0x10de/0x07fc (rev. 161), HDA rev. 1.0
ppb0 at pci0 dev 10 function 0: vendor 0x10de product 0x056d (rev. 0xa1)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
pci_mem_find: expected type mem, found i/o
viaide0 at pci1 dev 6 function 0
viaide0: VIA Technologies VT6421 Serial RAID Controller (rev. 0x50)
viaide0: bus-master DMA support present
LNKC: Picked IRQ 16 with weight 0
viaide0: using ioapic0 pin 16 for native-PCI interrupt
viaide0: primary channel wired to native-PCI mode
atabus0 at viaide0 channel 0
viaide0: secondary channel wired to native-PCI mode
atabus1 at viaide0 channel 1
pdcsata0 at pci1 dev 7 function 0
...
pdcsata0 port 2: device present, speed: 3.0Gb/s
viaide0 port 0: device present, speed: 1.5Gb/s
ahcisata0 port 0: device present, speed: 3.0Gb/s
pdcsata0 port 1: device present, speed: 3.0Gb/s
pdcsata0 port 3: device present, speed: 3.0Gb/s
ahcisata0 port 1: device present, speed: 3.0Gb/s
ahcisata0 port 3: device present, speed: 3.0Gb/s
wd0 at atabus0 drive 0: <Hitachi HDS722020ALA330>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 1863 GB, 3876021 cyl, 16 head, 63 sec, 512 bytes/sect x 3907029168 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd0(viaide0:0:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
wd1 at atabus3 drive 0uhidev0 at uhub0 port 4 configuration 1 interface 0
...
 
From lspci -xvv:
 
 01:06.0 RAID bus controller: VIA Technologies, Inc.: Unknown device 3249 (rev 
50)
         Subsystem: VIA Technologies, Inc.: Unknown device 3249
         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
         Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
         Latency: 64
         Interrupt: pin A routed to IRQ 16
         Region 0: I/O ports at cc00
         Region 1: I/O ports at c880
         Region 2: I/O ports at c800
         Region 3: I/O ports at c480
         Region 4: I/O ports at c400
         Region 5: I/O ports at c000
         Capabilities: [e0] Power Management version 2
                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
 00: 06 11 49 32 07 00 90 02 50 00 04 01 00 40 00 00
 10: 01 cc 00 00 81 c8 00 00 01 c8 00 00 81 c4 00 00
 20: 01 c4 00 00 01 c0 00 00 00 00 00 00 06 11 49 32
 30: 00 00 ff f9 e0 00 00 00 00 00 00 00 10 01 00 00
 
>Fix:
 not known