[lkml]   [2003]   [Aug]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectPCI1410 Interrupt Problems

when using this PCI Cardbus bridge, i got an interrupt assigned to the
card by the BIOS, but no interrupts were ever delivered, at all. So no
insert/remove events have been handled and devices couldn't generate
interrupts, as well:

02:0a.0 Class 0607: 104c:ac50 (rev 01)
02:0a.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 01)
Flags: bus master, medium devsel, latency 168, IRQ 9
Memory at 14000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
Memory window 0: 14400000-147ff000 (prefetchable)
Memory window 1: 14800000-14bff000
I/O window 0: 00004000-000040ff
I/O window 1: 00004400-000044ff
16-bit legacy interface ports at 0001

It looks like the designers of this card "forgot" to put a sane
configuration of the Multifunction Routing Register (0x8C) in their
EEPROM. After setting up the INTA output pin of the PCI1410, the device
started to work like a charm :-)

This i added to yenta_config_init():

config_writew(socket, 0x8C, 0x02);

I'm not sure if this will help with all of these devices of if it even
makes problems on others. But it might be an idea to add a config option
for this hack...


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:47    [W:0.128 / U:4.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site