Re: PCI & IRQ problems on TI Extensa 600CD

From: David Jez (dave.jez_at_seznam.cz)
Date: 10/25/04

  • Next message: Jesse Barnes: "Re: Fw: BUG_ONs in signal.c?" 
    Date:	Mon, 25 Oct 2004 18:19:45 +0200
To: Jim Nelson <james4765@verizon.net>

      Hi Jim,

      thank you for reply! Nice to hear that you have similar problem. You
    have right, my notebook is same old as yours, pentium 166, maybe
    1994-1997. I have TI PCI1130 cardbus bridge. You have right, pin is
    routed to IRQ 255. See attach file. But i see same behaviour on IDE
    device. Strange is that this works fine under window$ :-( which says
    somethink as "interrupts table get from PCI 1.2 bios". I don't know how
    far i can believe it.

    > I've got the same problem with the Cardbus bridge on my old Thinkpad 760ED
    > - I think your laptop is as old as mine (Pentium 166 - 1996 or thereabouts).
    >
    > The problem with mine is that the Cardbus bridge doesn't get a vaild IRQ
    > written into the chip by the BIOS, and Linux relies on the BIOS to do it on
    > older machines. I haven't found an answer yet - I'm just getting into this
    > stuff myself, and don't understand PCI well enough to code a fix. It is
    > good to know that it is not an IBM-only problem.
    >
    > Just out of curiosity - does lspci -vvb show the interrupt pins on the
    > Cardbus bridge routed to IRQ 255?
    >
    > If so, it might be a problem with the TI bridge chip. IIRC, that's the
    > same model chip as in my laptop.
      Regards, 

    -- 
-------------------------------------------------------
  David "Dave" Jez                Brno, CZ, Europe
 E-mail: dave.jez@seznam.cz
PGP key: finger xjezda00@eva.fit.vutbr.cz
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    • text/plain attachment: LSPCI
  • Next message: Jesse Barnes: "Re: Fw: BUG_ONs in signal.c?"

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