760ed/xd yenta biosirq irq 0 problem with cardbus

[kocoman]

So there is no solution to get cardbus working in linux for 760ed/xd/xl thinkpads? has anyone got CARDBUS stuff working for 760's in linux

thanks

[kaiser]

this is no software related problem. There is a difference in hardware. I bet the 760's are simply to old to have CardBus, the difference is simply that PC Card = 16 Bit Bus where CardBus is 32 Bit wide.
If you have a CardBus-Card lying around you can simply find out if you got only a PC Card slot, since the 32 Bit Cards are mechanically a bit different so they can't be plugged into a 16 Bit only slot.

http://en.wikipedia.org/wiki/PCMCIA

edit: should have looked at thinkwiki.org first. You got CardBus. And maybe you would only have to change one configuration entry in the config-file for PCMCIA.
I found only a HowTo for Gentoo on a 770 but maybe you could port that to the 760. (Interesting part is the one about Kernel config.)
http://thinkwiki.org/wiki/Installing_Ge ... nkpad_770E

[kocoman]

From what I have read it is a bios or hardware problem, because the cardbus wire is not properly linked from the motherboard to the pcmcia socket. Some can't get cardbus to work even in Windows. I have cardbus cards (the ones with golden dots at the top connector) but it doesn't get detected at all. only pcmcia (16 bit (no golden plate) work) and both type can plug fine in the 760. 770 is like 600 and doesn't have the problem with cardbus... Thanks anyways (I guess you don't have a 760 yourself to know the issue) its diffuclt to help if you don't have the same machine as me.

[kocoman]

Just for future reference:
I've got a bit of a problem with my old Thinkpad 760ED. The Cardbus bridge
>>is not getting an IRQ assigned by the BIOS, and is defaulting to IRQ 255.
>>I've got the TI 1031 & 1131 datasheets and would like a little advice on
>>how to get this thing working.
>
>
> You can't get it working; the PCI interrupt pin on the CardBus bridge
> is not connected to anything. And the kernel PCMCIA system does not
> support CardBus devices without a PCI interrupt.
>
> (if you check the users guide for this laptop, it says that CardBus is
> not supported under Windows, for the same reason)
>
> If you use a 2.4 or older kernel, and the external pcmcia-cs modules,
> then this setup will work, for CardBus cards that work with pcmcia-cs
> drivers. The pcmcia-cs socket driver will route ISA interrupts for
> CardBus cards if no PCI interrupt is available. The kernel subsystem
> doesn't support this option.
>
> -- Dave
>

Ah well. It was an old piece of junk anyway.

Thanks for giving me an answer, though. I'd half expected that the INTx lines
were not hooked up, but didn't want to try opening the thing up to verify it.
OTOH, I've learned more about PCI programming and architecture than I ever knew
existed.

So, any CardBus-specific drivers should be okay, but anything that relies on
pci-specific calls will not? (i. e. orinoco_cs will work, but the OHCI driver for
a USB 2.0 card will not)

If all else fails, it can become a victim for kernel experiments...

[kocoman]

I think there is something about ps2 cbirq1 enable then run loadlin will fix the yenta biosirq problems. I will try it when I have time maybe.

[zdeqb]

I have a 760EL and I got the cardbus/yenta problem fixed by applying this kernel patch: http://lists.infradead.org/pipermail/li ... 03347.html

[kocoman]

http://www.thinkwiki.org/wiki/760ed_yenta_patch

There is also a patch there but I haven't try it yet. I can't get it boot off the IDE, is it PIIX? I enabled CONFIG_BLK_DEV_PIIX but it still give me a kernel panic.. more reading to do I guess.



EDIT: Got it all working now with the patch... thanks for the patcher person