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From: Sven Luther <sven.luther@wanadoo.fr>
To: Marcus Barrow <mbarrow@sangate.com>
Cc: Sven Luther <sven.luther@wanadoo.fr>, linuxppc-dev@lists.linuxppc.org
Subject: Re: multiple separate pci bridges ...
Date: Tue, 6 Jan 2004 08:14:12 +0100	[thread overview]
Message-ID: <20040106071412.GB735@iliana> (raw)
In-Reply-To: <1073338730.9456.2487.camel@boat.sangate.com>


On Mon, Jan 05, 2004 at 04:38:50PM -0500, Marcus Barrow wrote:
>
> 	Hi Sven:
>
> 	I think there is some basic brokeness in the Discovery
> 	specific code. I've been meaning to go and look at some
> 	of the original code, to see if some stuff was left on
> 	the floor.

Mmm. What code are you speaking about here ?

> 	On our evalution boards the P2P registers are not set
> 	up. So you indeed have two PCI bus 0. The P2P register
> 	for PCI bus 1 should be initialized to identify it as
> 	bus 1, or whatever the right value is considering
> 	any more bridges found on bus 0.

Mmm, i understand that the 2.6.x pci domain will make this not
necessary. I might be wrong though.

> 	If you insert pci cards which contain bridges on them,
> 	they only work on the bus 0 slots...

bus 1 is used as an agp bus anyway, and i doubt there are many agp
graphic cards out there with pci bridges on them. When i inserted my
Appian Jeronimo 2000 in that board, it refused to powerup at all, but
then, maybe it is drawing too much power or something. After all, it has
a 3dlabs gamma and two permedia3 on it.

> 	Do you have something like ppcboot or uboot starting
> 	your system or just a kernel? If you are using a real

Well, there is a customized SmartFirmware OpenFirmware on the board. I
even have (non-free though) access to the source of it. The board is
mostly a CHRP design.

> 	boot rom, you could try initializing the p2p registers
> 	by hand, then booting...

The Firmware guy told me don't touch it though.

> 	I'm hoping to work on this in the next few days.

Ok, great.

Friendly,

Sven Luther

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

  reply	other threads:[~2004-01-06  7:14 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-01 18:11 multiple separate pci bridges Sven Luther
2004-01-02  4:03 ` Benjamin Herrenschmidt
2004-01-02  7:40   ` Sven Luther
2004-01-02  7:49     ` Benjamin Herrenschmidt
2004-01-04 21:03       ` Sven Luther
2004-01-04 21:45         ` Benjamin Herrenschmidt
2004-01-04 22:06           ` Sven Luther
2004-01-05 16:40             ` Sven Luther
2004-01-05 21:28               ` Benjamin Herrenschmidt
2004-01-05 21:42                 ` Sven Luther
2004-01-05 22:12                   ` Benjamin Herrenschmidt
2004-01-06  7:39                     ` Sven Luther
2004-01-06  8:00                       ` Benjamin Herrenschmidt
2004-01-06  8:11                         ` Sven Luther
2004-01-06 14:40                           ` Geert Uytterhoeven
2004-01-06 14:45                             ` Sven Luther
2004-01-06 15:33                               ` Rob Baxter
2004-01-06 17:44                                 ` Sven Luther
2004-01-06 21:37                                 ` Benjamin Herrenschmidt
2004-01-06 22:10                                   ` Marcus Barrow
2004-01-06 22:17                                   ` Rob Baxter
2004-01-06 22:31                                     ` Benjamin Herrenschmidt
2004-01-07  2:35                                   ` Sven Luther
2004-01-07  2:36                                     ` Benjamin Herrenschmidt
2004-01-07  2:40                                       ` Sven Luther
2004-01-07  9:02                                   ` Michael Schmitz
2004-01-07  9:23                                     ` Benjamin Herrenschmidt
2004-01-07  9:56                                       ` Sven Luther
2004-01-07 10:27                                       ` Michael Schmitz
2004-01-13  9:56                                   ` Sven Luther
2004-01-13 10:26                                     ` Sven Luther
2004-01-18 12:15                             ` Sven Luther
2004-01-18 13:00                               ` Michel Dänzer
2004-01-18 13:14                                 ` Sven Luther
2004-01-19  9:12                                   ` Benjamin Herrenschmidt
2004-01-18 22:27                                     ` Sven Luther
2004-01-18 22:59                                       ` Benjamin Herrenschmidt
2004-01-19  9:21                                         ` Sven Luther
2004-01-18 23:24                               ` Benjamin Herrenschmidt
2004-01-05 21:38               ` Marcus Barrow
2004-01-06  7:14                 ` Sven Luther [this message]
2004-01-06  7:56                   ` Benjamin Herrenschmidt
2004-01-06  8:20                     ` Sven Luther
2004-01-02 18:34     ` Geert Uytterhoeven
2004-01-02 15:18 ` Rob Baxter
2004-01-02 23:56   ` Benjamin Herrenschmidt
2004-01-03  0:27     ` Rob Baxter
2004-01-03  1:12       ` Benjamin Herrenschmidt
2004-01-05  0:52         ` Rob Baxter
2004-01-05  2:13           ` Benjamin Herrenschmidt
2004-01-06 20:53 Marcus Barrow
2004-01-06 21:09 Marcus Barrow
2004-01-06 22:59 ` Benjamin Herrenschmidt
2004-01-06 23:00 ` Benjamin Herrenschmidt
2004-01-18 14:44 Sven Luther
2004-01-18 16:33 ` Michel Dänzer
2004-01-18 17:28   ` Sven Luther
2004-01-18 18:24     ` Michel Dänzer
2004-01-18 22:20       ` Sven Luther
2004-01-18 23:33         ` Michel Dänzer
2004-01-19  9:55           ` Sven Luther
2004-01-19 13:48   ` Sven Luther
2004-01-19 13:54     ` Geert Uytterhoeven
2004-01-19 14:00       ` Sven Luther
2004-01-19 14:02     ` Michel Dänzer
2004-01-19 14:16       ` Sven Luther
2004-01-19 14:31         ` Michel Dänzer
2004-01-19  9:11 ` Benjamin Herrenschmidt
2004-01-18 22:33   ` Sven Luther
2004-01-18 23:23   ` Michel Dänzer
2004-01-18 23:42     ` Benjamin Herrenschmidt
2004-01-19  0:03       ` Michel Dänzer
2004-01-19 10:08   ` Geert Uytterhoeven
2004-01-19 11:41     ` Benjamin Herrenschmidt
2004-01-19 12:03       ` Sven Luther
2004-01-19 21:35         ` Benjamin Herrenschmidt
2004-01-19 22:08           ` Sven Luther

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