From: James Don <JDon@spacebridge.com>
To: James Don <JDon@spacebridge.com>,
"'linuxppc-embedded@lists.linuxppc.org'"
<linuxppc-embedded@lists.linuxppc.org>
Subject: RE: kernel 2.4 smc1 problems ... advice please ...
Date: Sat, 14 Dec 2002 16:08:14 -0500 [thread overview]
Message-ID: <DB0585C9F6F9D411BE8F00D0B7896A4CC05F12@SNCMAIL> (raw)
Fixed ... after I changed the immr to 0xff000000 from 0x02200000 I left a
for(;;); in start_kernel ... sorry for the uneccessary post ...
Jim
-----Original Message-----
From: James Don [mailto:JDon@spacebridge.com]
Sent: Saturday, December 14, 2002 2:37 PM
To: 'linuxppc-embedded@lists.linuxppc.org'
Subject: kernel 2.4 smc1 problems ... advice please ...
Hello,
I am cuurently trying to boot up the linux kernel using ppcboot 1.16 and the
2.4 kernel with only smc1 uart support as a start on an MPC860 FADS derived
board.
So far I have:
- ppcboot running great
- tftpboot graps my kernel puts in RAM
- bootm starts my kernel ... BUT no serial activity ...
I am using the vision ICE currently to debug the kernel start up but it has
a problem stepping through the 'rfi' etc when memory protection is running.
So currently I can only really peek at the PC and see that I am indeed
excuting kernel code.
I believe my memory map is ok:
MEM VIRT PHYS
RAM 0xc0000000 0x00000000
IMMR 0xff000000 0xff000000
My pc seems to get beyond start_kernel ... but I don't see the kernel banner
printed or anything ... with an ocillioscope I don't see any serial activity
at all after I exit ppcboot ...
I have check the following so far to the best of my abilities (until I get a
BDI 2000) ... and the MMU looks ok ... and my SMC port B settings are ok as
well.
Does anyone have any tips that could help me out? For some reason I think
either my MMU is not set to what I think it is ... or my SMC config has
tanked ...
Regards,
Jim
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next reply other threads:[~2002-12-14 21:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-14 21:08 James Don [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-12-14 19:37 kernel 2.4 smc1 problems ... advice please James Don
2002-12-14 21:13 ` Wolfgang Denk
2002-12-16 12:28 ` Leonardo Pereira Santos
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