From: Dan Malek <dan@netx4.com>
To: bsimon@ctam.com.au
Cc: linuxppc-embedded <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: linuxppc embedded boot problems.
Date: Thu, 16 Dec 1999 00:03:34 -0500 [thread overview]
Message-ID: <385872A6.14555CD1@netx4.com> (raw)
In-Reply-To: 38581CA8.152E5204@ctam.com.au
Brendan Simon wrote:
> In the mbxboot directory, the code basically copies the kernel to
> 0x100000, uncompresses the kernel and then jumps to the kernel starup
> code. I take it this is known as the "kernel loader" ?
Yeah, I guess that is a good name for it.
> This code has statements to invalidate the cache before jumping to the
> kernel. Is this the same as making sure lines are not "locked" in the
> cache ?
No. There are a couple of cache instructions that need to
be run during processor initialization out of reset. I don't
have a book handy, but if you look in my fadsrom code in
start.S, the instructions are there. It is a certain sequence
of invalidates and unlocks.
> All caches are disabled at this stage so I guess it shouldn't matter.
Right.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~1999-12-16 5:03 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-12-15 5:55 linuxppc embedded boot problems Brian Kuschak
1999-12-15 5:22 ` linuxppc-embedded: /bin/sh wont run from nfsroot Brendan Simon
1999-12-15 11:00 ` Jim Chapman
1999-12-15 18:56 ` Alan Mimms
1999-12-15 20:09 ` Dan Malek
1999-12-15 21:27 ` Richard Hendricks
1999-12-15 21:37 ` Alan Mimms
1999-12-15 22:13 ` Dan Malek
1999-12-16 14:52 ` Richard Hendricks
1999-12-15 19:24 ` Dan Malek
1999-12-15 23:10 ` linuxppc-embedded: memory map question Brendan Simon
1999-12-16 9:37 ` linuxppc-embedded: programs wont run from nfsroot Brendan Simon
1999-12-15 22:40 ` linuxppc-embedded: /bin/sh " Brendan Simon
1999-12-16 0:24 ` Brendan Simon
1999-12-16 2:17 ` Brendan Simon
1999-12-15 19:11 ` Dan Malek
[not found] ` <ot66y035bv.fsf@thinktwice.zoftcorp.dk>
1999-12-15 22:29 ` Brendan Simon
1999-12-15 19:06 ` linuxppc embedded boot problems Dan Malek
1999-12-15 22:56 ` Brendan Simon
1999-12-16 5:03 ` Dan Malek [this message]
-- strict thread matches above, loose matches on Subject: below --
1999-12-16 4:08 Brian Kuschak
1999-12-14 22:12 Brendan Simon
1999-12-15 2:58 ` Dan Malek
1999-12-15 3:04 ` Brendan Simon
1999-12-15 4:11 ` Dan Malek
1999-12-15 3:51 ` Brendan Simon
1999-12-15 19:04 ` Dan Malek
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