From: Benjamin Herrenschmidt <bh40@calva.net>
To: Geert Uytterhoeven <geert@linux-m68k.org>,
<linuxppc-dev@lists.linuxppc.org>
Subject: Re: dual IRQ 23 (was: USB?; 2.2.18 no boot?; aic7xxx?)
Date: Mon, 4 Dec 2000 15:35:20 +0100 [thread overview]
Message-ID: <19341029080704.31331@192.168.1.2> (raw)
In-Reply-To: <Pine.GSO.4.10.10012032140410.7958-100000@rose.sonytel.be>
>
>Shared interrupts are allowed by PCI. If it doesn't work, it means one of the
>drivers (or both) can't cope with shared interrupts. The solution is to
>fix the
>driver(s).
In fact, the problem appears to be in our prom.c code. On "oldworld"
macs, the interrupt informations in the device tree use apple non-
standard "AAPL,interrupts" properties. It appears that when a PCI<->PCI
bridge is present in a slot, Apple's OF will only set this property on
the bridge itself, not on the devices below the bridge. So we must adjust
our prom.c code to detect this case. I'll give it a try later this week.
Ben.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2000-12-04 14:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-29 1:55 dual IRQ 23 (was: USB?; 2.2.18 no boot?; aic7xxx?) Stefan Jeglinski
2000-12-01 19:56 ` Michel Lanners
2000-12-03 20:41 ` Geert Uytterhoeven
2000-12-04 6:09 ` arguing IRQ (was Re: dual IRQ 23) Stefan Jeglinski
2000-12-05 8:39 ` Timothy A. Seufert
2000-12-04 14:35 ` Benjamin Herrenschmidt [this message]
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