[OpenBIOS] PCI setup code

[James]

> > If anyone could repost the links to PCI support code I would appreciate
> > it. Linux PCI_DIRECT is not up to snuff at present.
> 
> Have you looked at 2.3.x?  It is MUCH more up to date.
> 
> What problems exactly are you having in PCI setup?  I've been messing
> around in that area lately and can help...


Hey Jeff,
  I'll be here at the ACL for a week.  Below is what we get on bootup.

NOTES:
  Calibrating delay loop... 4.25 BogoMIPS
Cache isn't enabled correctly, so the chip runs at ~ 1/100 its speed. 
Sigh.  This makes gunzipping slow.
  PCI: 00:60 [9005/005f], irq 0x0
This is the SCSI controller, hence this line is repeated.  Note how all
the IRQs are 0x0.  Continue down the printout and note how all the mbases
are 00000000 when the cards initialize.

I am going to try to make code to assign IRQs; I don't really know where
to start; I take it PCI devices each get an IRQ of 9, 10, 11, 12, 14, or
15, and they can share?  Ron says he knows how to fix the mbases problem.

Any comments/suggestions would be greatly appreciated (no, I do not know
what I am doing).
	- James

>>>>>>  Contents of 0018:C01DD140 (we don't have video yet)
Linux version 2.2.10 (rminnich at mini) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #13 Mon Mar 27 12:43:40 MST 2000.
Detected 497449471 Hz processor..
Calibrating delay loop... 4.25 BogoMIPS.
Memory: 309004k/313472k available (752k kernel code, 412k reserved, 3276k data, 28k init).
Pentium-III serial number disabled..
CPU: Intel 00/07 stepping 03.
Checking 386/387 coupling... OK, FPU using exception 16 error reporting..
Checking 'hlt' instruction... OK..
POSIX conformance testing by UNIFIX.
mtrr: v1.35 (19990512) Richard Gooch (rgooch at atnf.csiro.au).
PCI: Using configuration type 1.
PCI: Probing PCI hardware.
pci_scan_bus for bus 0.
pci_scan_bus: bus 0, max is 0.
irq is 0x0.
base 0, val 0x8.
base 1, val 0x0.
base 2, val 0x0.
base 3, val 0x0.
base 4, val 0x0.
base 5, val 0x0.
PCI: 00:00 [8086/71a0],irq 0x0.
base 0, val 0x0.
base 1, val 0x0.
PCI: 00:08 [8086/71a1],irq 0x0.
irq is 0x0.
base 0, val 0x1.
base 1, val 0x4.
base 3, val 0x0.
base 4, val 0x0.
base 5, val 0x0.
PCI: 00:60 [9005/005f],irq 0x0.
irq is 0x0.
base 0, val 0x1.
base 1, val 0x4.
base 3, val 0x0.
base 4, val 0x0.
base 5, val 0x0.
PCI: 00:61 [9005/005f],irq 0x0.
irq is 0x0.
base 0, val 0x0.
base 1, val 0x1.
base 2, val 0x0.
base 3, val 0x0.
base 4, val 0x0.
base 5, val 0x0.
PCI: 00:70 [8086/1229],irq 0x0.
irq is 0x0.
base 0, val 0x0.
base 1, val 0x0.
base 2, val 0x0.
base 3, val 0x0.
base 4, val 0x0.
base 5, val 0x0.
PCI: 00:90 [8086/7110],irq 0x0.
irq is 0x0.
base 0, val 0x0.
base 1, val 0x0.
base 2, val 0x0.
base 3, val 0x0.
base 4, val 0x1.
base 5, val 0x0.
PCI: 00:91 [8086/7111],irq 0x0.
irq is 0x0.
base 0, val 0x0.
base 1, val 0x0.
base 2, val 0x0.
base 3, val 0x0.
base 4, val 0x1.
base 5, val 0x0.
PCI: 00:92 [8086/7112],irq 0x0.
irq is 0x0.
base 0, val 0x0.
base 1, val 0x0.
base 2, val 0x0.
base 3, val 0x0.
base 4, val 0x0.
base 5, val 0x0.
PCI: 00:93 [8086/7113],irq 0x0.
irq is 0x0.
base 0, val 0x8.
base 1, val 0x0.
base 2, val 0x0.
base 3, val 0x0.
base 4, val 0x0.
base 5, val 0x0.
PCI: 00:a0 [1013/00bc],irq 0x0.
pci_scan_bus for bus 1.
pci_scan_bus: bus 1, max is 1.
base 0, val 0x0.
base 1, val 0x0.
PCI: 01:78 [1011/0023],irq 0x0.
pci_scan_bus for bus 2.
pci_scan_bus: bus 2, max is 2.
PCI: pci_scan_bus returning with max=02.
PCI: pci_scan_bus returning with max=02.
PCI: pci_scan_bus returning with max=02.
PCI: Assigning I/O space 5800-58ff to device 00:60.
PCI: Enabling I/O for device 00:60.
PCI: Assigning I/O space 5900-59ff to device 00:61.
PCI: Enabling I/O for device 00:61.
PCI: Assigning I/O space 5a00-5a3f to device 00:70.
PCI: Enabling I/O for device 00:70.
PCI: Assigning I/O space 5a40-5a4f to device 00:91.
PCI: Assigning I/O space 5a60-5a7f to device 00:92.
PCI: Enabling I/O for device 00:92.
Linux NET4.0 for Linux 2.2.
Based upon Swansea University Computer Society NET3.039.
NET4: Unix domain sockets 1.0 for Linux NET4.0..
NET4: Linux TCP/IP 1.0 for NET4.0.
IP Protocols: ICMP, UDP, TCP.
Starting kswapd v 1.5 .
Serial driver version 4.27 with no serial options enabled.
Floppy drive(s): fd0 is 1.44M.
floppy0: no floppy controllers found.
Found an aci. pdev shows irq at 0x0.
aic7xxx: <Adaptec AIC-7896/7 Ultra2 SCSI host adapter> at PCI 12/0.
aci7xxx: base 00005800, mbase 00000000, irq 0x0.
aic7xxx: Controller disabled by BIOS, ignoring..
Found an aci. pdev shows irq at 0x0.
aic7xxx: <Adaptec AIC-7896/7 Ultra2 SCSI host adapter> at PCI 12/1.
aci7xxx: base 00005900, mbase 00000000, irq 0x0.
aic7xxx: Controller disabled by BIOS, ignoring..
scsi : 0 hosts..
scsi : detected total..
  The PCI BIOS has not enabled this device!  Updating PCI command 0001->0005..
  PCI latency timer (CFLT) is unreasonably low at 0.  Setting to 32 clocks..
eth0: Intel EtherExpress Pro 10/100 at 0x5a00, 00:90:27:E0:34:A2, IRQ 0..
  Receiver lock-up bug exists -- enabling work-around..
  Board assembly 000000-000, Physical connectors present: RJ45.
  Primary interface chip i82555 PHY #1..
  General self-test: passed..
  Serial sub-system self-test: passed..
  Internal registers self-test: passed..
  ROM checksum self-test: passed (0x04f4518b)..
VFS: Cannot open root device 08:01.......


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