From: Juergen Beisert <jbeisert@eurodsn.de>
To: "Shih-Ying Chou" <sschou@mtu.edu>
Cc: <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: Question about IBM405 and IRQ
Date: Wed, 1 Oct 2003 08:47:41 +0200 [thread overview]
Message-ID: <200310010847.41202.jbeisert@eurodsn.de> (raw)
In-Reply-To: <005201c387d0$dafdcf80$6401a8c0@sazabimobile>
Am Mittwoch, 1. Oktober 2003 06:02 schrieb Shih-Ying Chou:
> The following is the /proc/pci
>
> PCI devices found:
> Bus 0, device 10, function 0:
> USB Controller: NEC Corporation USB (rev 65).
> IRQ 25
<snip>
> USB Controller: NEC Corporation USB 2.0 (rev 2).
> IRQ 25
> Master Capable. Latency=128. Min Gnt=16.Max Lat=34.
> Non-prefetchable 32 bit memory at 0xbfffdf00 [0xbfffdfff].
Are you shure logical IRQ25 is connected to your PC104plus slot? Have a look
into CPU registers UIC0_PR and UIC0_TR: Is IRQ25 configured for negative
level triggering (like the PCI bus need)? Register CPC0_CR0: Is the physical
IRQ0 (logical IRQ25) enabled?
Hope it helps
-- JB
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2003-10-01 6:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-01 4:02 Question about IBM405 and IRQ Shih-Ying Chou
2003-10-01 6:47 ` Juergen Beisert [this message]
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