From: "David H. Lynch Jr" <dhlii@comcast.net>
To: linuxppc-embedded <linuxppc-embedded@ozlabs.org>
Subject: Re: Board Bringup problem with 2.6.13.4
Date: Fri, 04 Nov 2005 15:24:00 -0500 [thread overview]
Message-ID: <436BC360.20908@comcast.net> (raw)
In-Reply-To: <43688AAD.5050208@comcast.net>
David H. Lynch Jr wrote:
I am working through bringing up Linux 2.6.14 on a Xilinx V4 based
ppc405. with memory from 0x0 through 0x7fffffff
I get to this point in head_4xx.S:
/* We now have the lower 16 Meg mapped into TLB entries, and the caches
* ready to work.
*/
turn_on_mmu:
lis r0,MSR_KERNEL@h
ori r0,r0,MSR_KERNEL@l
mtspr SPRN_SRR1,r0
lis r0,start_here@h // SPRN_SRR0 is where the rfi
resumes execution
ori r0,r0,start_here@l
mtspr SPRN_SRR0,r0
SYNC
rfi /* enables MMU */
b . /* prevent prefetch past rfi */
The value of SPRN_SRRO is 0xffffc00000002218 and SPRN_SRR1 is
0x0000000200001032
I have not checked the bits in SPRN_SRR1 but isn't 0xffffc00000002218
wrong ? it looks like it was sign
extended. physical 0x2218 is start_here so that part is corect.
next prev parent reply other threads:[~2005-11-04 20:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-06 13:00 Regarding the PPC board bringup with Linux 2.6 kernel vinay hegde
2005-09-06 14:54 ` Wolfgang Denk
2005-09-06 16:09 ` Clemens Koller
2005-09-06 16:34 ` Robert P. J. Day
2005-11-02 9:45 ` Board Bringup problem with 2.6.13.4 David H. Lynch Jr
2005-11-02 14:07 ` Andrei Konovalov
2005-11-04 20:24 ` David H. Lynch Jr [this message]
2005-11-04 20:27 ` David H. Lynch Jr
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