From: Ulf Carlsson <ulfc@bun.falkenberg.se>
To: Linux SGI <linux@cthulhu.engr.sgi.com>
Subject: Re: weird HAL2
Date: Tue, 2 Feb 1999 17:17:45 +0100 [thread overview]
Message-ID: <19990202171745.A1051@bun.falkenberg.se> (raw)
On Tue, Feb 02, 1999 at 04:23:39PM +0100, Thomas Bogendoerfer wrote:
> On Tue, Feb 02, 1999 at 05:14:44PM +0100, Ulf Carlsson wrote:
> > Is it possible to download the BIOS and disassemble it to check how to do it
> > correctly?
>
> should be doable, but I guess disassembling the IRIX driver might be easier.
> I've hoped someone at SGI could help us out.
I think we should ask them kindly then:
Does anyone at SGI know how the HAL2 works?
We can't get it working correctly, it doesn't come back to normal state after
the reset. Even if we write 0x0018 to isr, to enable the chip, it still shows
0x0000. It's certainly off because we can't write to the indirect registers in
this state
If we don't reset the HAL2, leaving it the way it is when after playing the boot
sound, we can't write to the indirect registers. The busy bit doesn't go off.
The only thing which works correctly is reading the version register.
- Ulf
next reply other threads:[~1999-02-02 16:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-02-02 16:17 Ulf Carlsson [this message]
1999-02-02 19:36 ` weird HAL2 Alistair Lambie
1999-02-02 19:53 ` Ulf Carlsson
1999-02-02 20:25 ` Alistair Lambie
1999-02-02 21:11 ` Alan Cox
1999-02-02 21:11 ` Alan Cox
1999-02-02 21:26 ` Thomas Bogendoerfer
-- strict thread matches above, loose matches on Subject: below --
1999-02-01 22:10 Thomas Bogendoerfer
1999-02-01 23:09 ` Ulf Carlsson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=19990202171745.A1051@bun.falkenberg.se \
--to=ulfc@bun.falkenberg.se \
--cc=linux@cthulhu.engr.sgi.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.