From: Paul Mackerras <paulus@cs•anu.edu.au>
To: somer@nortelnetworks•com
Cc: linuxppc-dev@lists•linuxppc.org
Subject: Re: Strange mapping at 0xffc00000
Date: Thu, 6 May 1999 11:52:51 +1000 [thread overview]
Message-ID: <199905060152.LAA00535@tango.anu.edu.au> (raw)
In-Reply-To: <03E3E0690542D211A1490000F80836F4877E30@zcard00f.ca.nortel.com> (somer@nortelnetworks.com)
> I have started using the 2.2.5 kernel from 2.1.24 previously, and have found
> a
> new 4 Meg mapping up at 0xffc00000 that was not there before. This mapping
> is
> setup in arch/ppc/kernel/pmac_setup.c, in routine pmac_setup_arch with the
> following line:
>
> __ioremap(0xffc00000, 0x400000, pgprot_val(PAGE_READONLY));
This is the Mac ROM. I put that in when I was doing some experiments
to do with emulating the Mac hardware and running macos in user mode.
Paul.
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prev parent reply other threads:[~1999-05-06 1:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-05-05 20:48 Strange mapping at 0xffc00000 Jim Somerville
1999-05-06 1:52 ` Paul Mackerras [this message]
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