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From: Wolfgang Denk <wd@denx.de>
To: "Frank Smith" <smith@amirix.com>
Cc: clark@esteem.com, linuxppc-embedded@lists.linuxppc.org
Subject: Re: PPCBoot memory mapping problems
Date: Sat, 19 Aug 2000 10:26:25 +0200	[thread overview]
Message-ID: <200008190826.KAA17167@denx.local.net> (raw)
In-Reply-To: Your message of "Fri, 18 Aug 2000 23:10:44 -0300." <00Aug18.231049adt.7303@dragon.appliedmicro.ns.ca>


In message <00Aug18.231049adt.7303@dragon.appliedmicro.ns.ca>
Frank Smith wrote:
>
> > mapped at 0xC0000000? If it loads at address 0 how do I remap it to
> > 0xC0000000 once the kernel starts? Is there any way to force the kernel to
>
> Basically, the kernel boot process should be doing this *for* you.
>
> Part of the kernel boot process is to set up a memory mapping from
> virtual C0000000 to physical 00000000, and then enable address translation.

Right, but just to make this absolutely clear: this  is  done  within
the Linux kernel, you don't have to do anything for that in PPCBoot.

> > run in lower memory?
>
> I doubt it.  It shouldn't be necessary, tho.

There is no need to do anything like that in PPCBoot.

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Comparing information  and  knowledge  is  like  asking  whether  the
fatness  of  a  pig  is more or less green than the designated hitter
rule."                                               - David Guaspari

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

  reply	other threads:[~2000-08-19  8:26 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-08-19  0:45 PPCBoot memory mapping problems clark
2000-08-19  2:10 ` Frank Smith
2000-08-19  8:26   ` Wolfgang Denk [this message]
2000-08-19  8:26 ` Wolfgang Denk
2000-08-21 11:24 ` Jerry Van Baren
2000-08-21 11:52   ` diekema_jon
2000-08-21 13:25   ` Wolfgang Denk

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