From: Hubert Figuiere <Hubert.Figuiere@solsoft.fr>
To: Benjamin Herrenschmidt <bh40@calva.net>
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: Porting to NuBus PowerMacs
Date: Wed, 13 Jan 1999 10:40:26 +0100 [thread overview]
Message-ID: <19990113104026.C1056@dirkpitt.solsoft.fr> (raw)
In-Reply-To: <19990112202948.028828@mail.mipsys.com>; from Benjamin Herrenschmidt on Tue, Jan 12, 1999 at 08:29:48PM +0100
According to Benjamin Herrenschmidt <bh40@calva.net>:
> >-we have the source of the Mach MicroKernel, hence we have enough
> > to rewrite the specification to rewrite drivers for LinuxPPC.
> > Some components and drivers may directly come from Linux Mac68k.
>
> We have also a lot of potentially useful things in the mac68k and APUS ports.
>
> >Note that I don't have a NuBus PowerMac. Only a 6200 (and my
> >PowerCenter Pro, already supported).
>
> ;-)
I'm investigating the possibilities to support 5200/6200 (and its
little brother 5300/6300) just because this machine is:
a) not supported by either MkLinux or LinuxPPC
b) I have one (in fact my fiancee has it).
There are several custom chips inside (like on any other Mac).
First the big problem is that 6200 is a PowerPC inside a 68040
machine. It uses a "CAPELLA" custom chip as a bus translation
unit. This may be a problem since I don't think it is used in any
supported PowerMac.
RAM: 2 simm slot on a 68040 data bus.
Video: It is a "Valkyrie" Chip using a DRAM frame buffer. If I
remember, Valkyrie is available in several PowerMacs and is
already supported.
Memory Controller: it is a "F108" as in the LC 630 (ses Linux 68k
port) that also handles IDE, SCSI and SCC serial ports. SCSI in
this chip is a NCR 53C96. SCC is like the 8530 SCC (that we find
in several Macs too).
ADB: "CUDA" chip similar to several 68k Mac. Accessed thru the
"PrimeTime II". It is the 68HC05 and also handles PRAM, RTC,
power supply control.
Sound: a "DFAC II" chip.
Other: "PRIMETIME II" chip manages SWIM II, VIA1, VIA2, sound
controller and I/O bus adpater. Manages ADB sounds, CommSlot, PDS.
You can find the technote here:
http://developer.apple.com/techpubs/hardware/hardware2.html
Note that I have no porting experience. :-)
Hub
--
> Je souhaiterais essayer Internet Explorer 4.0 sous Linux.
> Il existe 2 versions: une sous HP/UX et une sous Solaris
> Laquelle dois je utiliser?
-+- MJM in Guide du linuxien pervers : "Choisir son environnement" -+-
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next prev parent reply other threads:[~1999-01-13 9:40 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-01-12 15:26 Porting to NuBus PowerMacs Hubert Figuiere
1999-01-12 19:29 ` Benjamin Herrenschmidt
1999-01-13 0:12 ` David A. Gatwood
1999-01-13 4:17 ` Dan Malek
1999-01-13 9:40 ` Hubert Figuiere [this message]
1999-01-13 16:18 ` Gary Thomas
1999-01-13 16:25 ` Hubert Figuiere
1999-01-13 17:27 ` [OT] " Geert Uytterhoeven
1999-01-13 20:07 ` David A. Gatwood
1999-01-13 18:55 ` David A. Gatwood
1999-01-14 18:15 ` Jules Bean
1999-01-14 18:33 ` Michael Schmitz
1999-01-14 20:18 ` David A. Gatwood
1999-01-12 20:31 ` David A. Gatwood
1999-01-12 23:32 ` Paul Mackerras
1999-01-13 21:14 ` Tom Vier
1999-01-12 20:31 ` a sun
1999-01-13 19:21 ` David A. Gatwood
1999-01-13 19:27 ` David A. Gatwood
1999-01-14 4:09 ` a sun
1999-01-14 4:23 ` David A. Gatwood
1999-01-14 2:12 ` Troy Benjegerdes
1999-01-14 11:12 ` Benjamin Herrenschmidt
-- strict thread matches above, loose matches on Subject: below --
1999-01-13 5:40 Ron Nelson
1999-01-13 21:22 ` Tom Vier
1999-01-13 13:57 Kaoru Fukui
1999-01-14 15:24 Porting to Nubus PowerMacs Alexander Gustav Deucher
1999-01-14 22:37 ` Gabriel Paubert
1999-01-15 9:03 ` Troy Benjegerdes
1999-01-15 11:09 ` Gabriel Paubert
1999-01-15 16:12 ` Alois Fertl
1999-01-15 19:36 ` Cort Dougan
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