Re: Linux on Amiga A600, a success story (in progress, with possible patch)

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Hi Patrick,

On Tue, Jan 24, 2012 at 18:35, Patrick Bottelberger
<patrick.bottelberger@xxxxxxxxx> wrote:
Geert Uytterhoeven schrieb:
What did Amiboot detect without the `-p` option (you may want ti try `-d')?
Does it assume a 68882 FPU?

Without supplying the '-p' parameter amiboot didn't output anything at
all, it just froze the amiga directly after entering the command.

Even with '-d'?

I'd expected this to be the topology issue, but that change doesn't seem
to be in 3.1.4. I'll see whether I can reproduce this.

I can't reproduce it on ARAnyM with 3.1.4.

Call Trace: [<0000ffff>] mm_release+0xa1/0xa4
 [<002b84fa>] topology_sysfs_init+0x0/0x1e

Seems to prove that, do you think

But this indeed looks like the same problem. Are you using a Debianized 3.1.4
source tree?

http://www.spinics.net/lists/linux-m68k/msg04709.html would solve the issue?

Yes, that should fix this problem.

Do you know what clock chip is used on the A603? I had a quick look on the
net, but couldn't find it (I did see a picture of an A604 with a partially
covered chip that said M6242). If you can't find it, I can ask Jens.

Currently, Linux assumes an A2000 clock chip, which is an Oki MSM6242.
If it's a Ricoh RP5C01, you have to modify arch/m68k/amiga/config.c to
select an A3000 clock chip on A600.

The kernel outputs: "Amiga hardware found: (...) A2000_CLK (...)", can i
rely on that message, or should i get the A603 out of the case and check
the chip to be sure?

You cannot rely on that message. It just assumes A2000/A500/A600 etc.
have an A2000-style clock chip. But on all but A2000 the RTC is optional.
BTW, I also asked Jens Schönfeld.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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