From: Travis Sawyer <tsawyer+linuxppc@sandburst.com>
To: linuxppc-embedded@lists.linuxppc.org
Subject: 440GX tlb problem?
Date: Fri, 11 Jun 2004 14:40:05 -0400 [thread overview]
Message-ID: <1086979205.29360.5.camel@pavement.sandburst.com> (raw)
Greetings:
I'm attempting to bring up a new board (our custom hw) and am blowing an
Instruction TLB error in head_440.S where the original TLB for SDRAM
(u-boot and initial kernel space) is invalidated after we've switched to
0xc000_0000.
the instructions:
3:/* iccci r0,r0 rcblach 12/19/02 clear all caches again on 1/17/03
I took out these changes
dccci r0,r0 again clear all caches */
cmpwi r23,62
beq 4f
li r6,0
tlbwe r6,r23,PPC440_TLB_PAGEID
sync
The exception hits when the sync is executed.
I hope this hasn't been discussed ad nauseum in the archives... I
couldn't seem to find it.
Kernel is 2.4.21
Any ideas?
TIA
Travis
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next reply other threads:[~2004-06-11 18:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-11 18:40 Travis Sawyer [this message]
2004-06-11 21:24 ` 440GX tlb problem? Matt Porter
2004-06-14 2:12 ` LarrZheng
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