Hi ya'll:
This is the first time I've tried multiple PCI devices on the Au1500. I have a
PCI->CardBus bridge and a 3Com ethernet plugged into the Au1500's PCI bus. I'm
using the linux_2_4 branch.
Here's the applicable dmesg:
...
Autoconfig PCI channel 0x8028e518
Scanning bus 00, I/O 0x00000300:0x00100000, Mem 0x40000000:0x44000000
00:0b.0 Class 0607: 104c:ac56
CARDBUS Bridge: primary=00, secondary=01
PCI Autoconfig: Found CardBus bridge, device 11 function 0
Mem at 0x40000000 [size=0x1000]
Scanning sub bus 01, I/O 0x00000300, Mem 0x40001000
Back to bus 00, sub_bus is 1
00:0d.0 Class 0200: 10b7:9200 (rev 78)
I/O at 0x00000300 [size=0x80]
Mem at 0x40001000 [size=0x80]
Linux NET4.0 for Linux 2.4
...
Here's lspci output:
root@10.1.1.122:~# lspci -vx
00:0b.0 CardBus bridge: Texas Instruments: Unknown device ac56
Flags: bus master, medium devsel, latency 168, IRQ 255
Memory at 40000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=01, subordinate=01, sec-latency=176
Memory window 0: 40000000-403ff000 (prefetchable)
Memory window 1: 40400000-407ff000
I/O window 0: 00004000-000040ff
I/O window 1: 00004400-000044ff
16-bit legacy interface ports at 0001
00: 4c 10 56 ac 07 00 10 02 00 00 07 06 08 a8 02 00
10: 00 00 00 40 a0 00 00 02 00 01 01 b0 00 00 00 40
20: 00 f0 3f 40 00 00 40 40 00 f0 7f 40 00 40 00 00
30: fc 40 00 00 00 44 00 00 fc 44 00 00 ff 01 40 05
40: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00:0d.0 Ethernet controller: 3Com Corporation 3c905C-TX [Fast Etherlink] (rev 78)
Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC
Flags: bus master, medium devsel, latency 128, IRQ 1
I/O ports at 0300 [size=128]
Memory at 40001000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
00: b7 10 00 92 07 00 10 02 78 00 00 02 00 80 00 00
10: 01 03 00 00 00 10 00 40 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 b7 10 00 10
30: 00 00 00 00 dc 00 00 00 00 00 00 00 01 01 0a 0a
-------------------------------------------------------------------------
My 3Com card is communicating over the network very effectively (as a matter of
fact, I've been using the 3Com card for netboot since I've been having problems
with my onboard PHY). I guess it's a (blessing?) that I was forced to use
multiple PCI devices...
Anyhow, since the 3Com card is configured in the same PCI memory space, card
services has a very hard time talking to the CardBus bridge. Below, I tried
a couple of different base addresses for the memory probe:
cardmgr[203]cs: memory probe 0x40000000-0x40ffffff:: starting, version is 3.2.3
excluding 0x40000000-0x40bfffff
<6>cs: memory probe 0x40000000-0x40ffffff: excluding 0x40000000-0x40bfffff
cardmgr[203]: socket 0: Anonymous Memory
cardmgr[203]: executing: 'modprobe memory_cs'
cardmgr[203]: + modprobe: Can't locate module memory_cs
cardmgr[203]: modprobe exited with status 255
cardmgr[203]: module /lib/modules/2.4.21-pre4/pcmcia/memory_cs.o not available
cardmgr[203]: get dev info on socket 0 failed: Resource temporarily unavailable
cardmgr[203]: executing: 'modprobe -r memory_cs'
Trying to free nonexistent resource <40c00000-40c00fff>
cardmgr[203]: exiting
<4>Trying to free nonexistent resource <40c00000-40c00fff>
unloading Kernel Card Services
<6>unloading Kernel Card Services
Linux Kernel Card Services 3.1.22
options: [pci] [cardbus]
<6>Linux Kernel Card Services 3.1.22
<6> options: [pci] [cardbus]
Yenta IRQ list 0000, PCI irq0
Socket status: 30000110
<4>Yenta IRQ list 0000, PCI irq0
<4>Socket status: 30000110
cardmgr[253]:cs: memory probe 0x40001000-0x40ffffff: starting, version is 3.2.3
excluding 0x40001000-0x410defff
cs: unable to map card memory!
cs: unable to map card memory!
<6>cs: memory probe 0x40001000-0x40ffffff: excluding 0x40001000-0x410defff
<5>cs: unable to map card memory!
<5>cs: unable to map card memory!
cardmcs: unable to map card memory!
grcs: unable to map card memory!
[2cs: unable to map card memory!
53cs: unable to map card memory!
]: socket 0: Anonymous Memory
<5>cs: unable to map card memory!
<5>cs: unable to map card memory!
<5>cs: unable to map card memory!
<5>cs: unable to map card memory!
cardmgr[253]: executing: 'modprobe memory_cs'
cardmgr[253]: + modprobe: Can't locate module memory_cs
cardmgr[253]: modprobe exited with status 255
cardmgr[253]: module /lib/modules/2.4.21-pre4/pcmcia/memory_cs.o not available
cardmgr[253]: get dev info on socket 0 failed: Resource temporarily unavailable
I can only assume that this has to do with PCI misconfiguration.
Thoughts?
Thanks for taking a look!
-Jeff
--
Jeffrey Baitis - Associate Software Engineer
Evolution Robotics, Inc.
130 West Union Street
Pasadena CA 91103
tel: 626.535.2776 | fax: 626.535.2777 | baitisj@evolution.com
