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failing PCI-bus

I hope I put this question in the right list.

I am able to start my IBM 520 8641 in DOS mode, initializing the RAID-array, but linux refuses to 'see' it.

The trouble is that linux can't enable the PCI-slots in this MCA-PC (6 MCA slots, 2 PCI-slots)

dmesg keeps reporting:
PCI: PCI BIOS revision 2.10 entry at 0xfd82c
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Unable to handle I/O allocation for 00:40 (0200), tell <mj@ucw.cz>
Complete list attached.
I replied to mj@ucw.cz, but no answer.....

Also starting with the loadlin-command, using options like pci=conf2 (PCI type 2), pci=nopeer, mca-pentium (just trying), 
pci-io=9000 etc gives the same outcome.

I need the PCI-slots (2 in total) because the ethernet and RAID controller are connected to them!

Information on the PCI-structure:

PCI		| PCI host bridge	| PCI RAID	| PCI ether	| PCI-ISA-bridge	| PCI MCA	| PCI VGA	 	| PCI SCSI bus	
Latency timer	| 20		| 20		| 50		| 00		| 00		| 00		| 40
Interrupt pin	| 0		| 1		| 1		| 0		| 0		| 1		| 1
Interrupt line	| 0		| F		| A		| FF		| 0		| 0		| B
Mem addr.	| -		| 40000080	| 40000000	| 500		| -		| 38000000	| 30000000
I/O addr.		| -		| 9080		| 9000 		| -		| 508 & 510	| -		| C00

I used the kernels from Debian 2.2r2 and 2.2r6.

Is there a way to enable the PCI-slots??

Thanks for any help,
Linux version 2.2.19 (herbert@gondolin) (gcc version #1 Sat Jun 9 13:04:06 EST 2001
BIOS-provided physical RAM map:
 BIOS-88: 0009f000 @ 00000000 (usable)
 BIOS-88: 03f00000 @ 00100000 (usable)
Detected 133314 kHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 265.42 BogoMIPS
Memory: 60788k/65536k available (1744k kernel code, 412k reserved, 996k data, 156k init)
Dentry hash table entries: 8192 (order 4, 64k)
Buffer cache hash table entries: 65536 (order 6, 256k)
Page cache hash table entries: 16384 (order 4, 64k)
VFS: Diskquotas version dquot_6.4.0 initialized
CPU: Intel Pentium 75 - 200 stepping 0c
Checking 386/387 coupling... OK, FPU using exception 16 error reporting.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
Intel Pentium with F0 0F bug - workaround enabled.
POSIX conformance testing by UNIFIX
PCI: PCI BIOS revision 2.10 entry at 0xfd82c
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Unable to handle I/O allocation for 00:40 (0200), tell <mj@ucw.cz>
Micro Channel bus detected.
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
TCP: Hash tables configured (ehash 65536 bhash 65536)
Starting kswapd v 1.5 
Detected PS/2 Mouse Port.
Serial driver version 4.27 with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
pty: 256 Unix98 ptys configured
Real Time Clock Driver v1.09
RAM disk driver initialized:  16 RAM disks of 4096K size
loop: registered device at major 7
Floppy drive(s): fd0 is 1.44M
FDC 0 is a National Semiconductor PC87306
md driver 0.36.6 MAX_MD_DEV=4, MAX_REAL=8
sim710: No NCR53C710 adapter found.
(scsi0) <Adaptec AIC-7870 SCSI host adapter> found at PCI 0/12/0
(scsi0) Narrow Channel, SCSI ID=7, 16/255 SCBs
(scsi0) Downloading sequencer code... 415 instructions downloaded
scsi: <fdomain> Detection failed (no card)
NCR53c406a: no available ports found
sym53c416.c: Version 1.0.0
Failed initialization of WD-7000 SCSI card!
IBM MCA SCSI: Version 3.2
IBM MCA SCSI: IBM SCSI-2 F/W Adapter found in slot 6, io=0x3540, scsi id=7,
              ROM Addr.=off, port-offset=0x0, subsystem=enabled.
IBM MCA SCSI: Combined bus mode (wide-addressing disabled)
IBM MCA SCSI: Sync.-Rate (F/W: 20, Int.: 10, Ext.: 10.00) MBytes/s
IBM MCA SCSI: Removing default logical SCSI-device mapping.
IBM MCA SCSI: Probing SCSI-devices (this can take up to 2 minutes).
IBM MCA SCSI: Mapping SCSI-devices.
IBM MCA SCSI: Device order: New Industry Standard (pun=0 is first).
megaraid: v1.11 (Aug 23, 2000)
3w-xxxx: tw_findcards(): No cards found.
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.33/3.2.4
       <Adaptec AIC-7870 SCSI host adapter>
scsi1 : IBM SCSI-Subsystem
scsi : 2 hosts.
  Vendor: IBM       Model: DCHS04U           Rev: 2727
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi1, channel 0, id 1, lun 0
scsi : detected 1 SCSI disk total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 8813870 [4303 MB] [4.3 GB]
Partition check:
 sda: sda1 sda2 < sda5 sda6 >
RAMDISK: Compressed image found at block 0
apm: BIOS not found.
EXT2-fs warning: checktime reached, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 156k freed
kmod: runaway modprobe loop assumed and stopped
kmod: runaway modprobe loop assumed and stopped
NET4: Unix domain sockets 1.0 for Linux NET4.0.
VFS: Disk change detected on device fd(2,0)
VFS: Can't find an ext2 filesystem on dev fd(2,0).
VFS: Can't find a Minix or Minix V2 filesystem on device 02:00.

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