Yenta TI. PCI interrupt probing fails. TI PCI1420. Unknown device.

[Markus Becker <mab@comnets.uni-bremen.de>]

Hello,

we're having problems with a special device 'Em104P-PCM/2' which is a
PCMCIA stackable card with PC/104-form factor. It uses a TI PCI1420 chip.

It seems that the probing of PCI interrupts fails. We tried 2.4.27 and
2.6.11 debian stock kernels with several boot options such as irq_mode=0
and p2cclk=0.

Output follows, if something is missing, contact me:

*****dmesg*****
[...]
Linux Kernel Card Services
  options:  [pci] [cardbus] [pm]
PCI: Found IRQ 5 for device 0000:00:0b.0
PCI: Sharing IRQ 5 with 0000:00:07.2
PCI: Sharing IRQ 5 with 0000:00:07.3
Yenta: CardBus bridge found at 0000:00:0b.0 [3412:7856]
Yenta: Enabling burst memory read transactions
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:00:0b.0, mfunc 0x00001000, devctl 0x62
Yenta TI: socket 0000:00:0b.0 probing PCI interrupt failed, trying to fix
Yenta TI: socket 0000:00:0b.0 no PCI interrupts. Fish. Please report.
Yenta: ISA IRQ mask 0x0000, PCI irq 0
Socket status: 30000006
PCI: Found IRQ 10 for device 0000:00:0b.1
PCI: Sharing IRQ 10 with 0000:00:08.0
PCI: Sharing IRQ 10 with 0000:00:0c.0
Yenta: CardBus bridge found at 0000:00:0b.1 [3412:7856]
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:00:0b.1, mfunc 0x00001000, devctl 0x62
Yenta TI: socket 0000:00:0b.1 probing PCI interrupt failed, trying to fix
Yenta TI: socket 0000:00:0b.1 no PCI interrupts. Fish. Please report.
Yenta: ISA IRQ mask 0x0000, PCI irq 0
Socket status: 30000006
[...]


*****lspci*****
[...]
0000:00:0b.0 CardBus bridge: Texas Instruments PCI1420
	Subsystem: Unknown device 3412:7856
	Flags: bus master, medium devsel, latency 168, IRQ 5
	Memory at e4100000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=00, secondary=01, subordinate=04, sec-latency=176
	Memory window 0: e4101000-e4102000 (prefetchable)
	Memory window 1: e4103000-e4104000
	I/O window 0: 0000cc00-0000d003
	I/O window 1: 0000d400-0000d803
	16-bit legacy interface ports at 0001

0000:00:0b.1 CardBus bridge: Texas Instruments PCI1420
	Subsystem: Unknown device 3412:7856
	Flags: bus master, medium devsel, latency 168, IRQ 10
	Memory at e4105000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=00, secondary=05, subordinate=08, sec-latency=176
	Memory window 0: e4106000-e4107000 (prefetchable)
	Memory window 1: e4108000-e4109000
	I/O window 0: 0000dc00-0000e003
	I/O window 1: 0000e400-0000e803
	16-bit legacy interface ports at 0001
[...]

*****/proc/interrupts*****
           CPU0       
  0:     388035          XT-PIC  timer
  1:       1261          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  5:          0          XT-PIC  uhci_hcd, uhci_hcd
  7:          0          XT-PIC  parport0
 10:        112          XT-PIC  eth0
 12:          0          XT-PIC  via82cxxx
 15:     104336          XT-PIC  ide1
NMI:          0 
LOC:          0 
ERR:          0
MIS:          0

*****uname -a*****
Linux pc104-1 2.6.11-1-386 #1 Fri May 20 06:15:52 UTC 2005 i686 GNU/Linux

*****lsmod*****
Module                  Size  Used by
[...]
pcmcia                 23432  4 
yenta_socket           20616  2 
rsrc_nonstatic          9856  1 yenta_socket
pcmcia_core            44848  3 pcmcia,yenta_socket,rsrc_nonstatic
[...]

*****cardctl*****
Socket 0:
  no card
Socket 1:
  no card

Please cc me, when replying. Thanks for any hints in advance.

Best regards,
Markus Becker

---
Dipl.-Ing. Markus Becker   | web: http://www.comnets.uni-bremen.de/~mab/
Communication Networks     | mailto: mab@comnets.uni-bremen.de
University Bremen, Germany | telephone: +49 421 218 2287




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