Re: Linux on 8260 using ELDK..Help?!?

2 messages, 2 authors, 2002-09-04 · open the first message on its own page

Re: Linux on 8260 using ELDK..Help?!?

From: Wolfgang Denk <hidden>
Date: 2002-09-04 13:41:19

Dear flavio,

in message [off-list ref] you wrote:
I'm a _newbie_ to Linux and am busy porting Linux to a MPC8260ADS
board. PPCBoot is working fine and the Linux kernel seems to boot up
okay up and till the point where it begins to load init, it then
crashes. The trace is shown below. I've also tried forcing sh and
Did you fix the IMMR mapping in PPCBoot? The  CFG_DEFAULT_IMMR  defi-
nition  will  NOT  work with LInux; see the Linux memory map require-
ments - You _must_ map the IMMR at 0xF0000000 or above.
bash as the start-up but these also fail with similar errors. I'm
using the binaries provided by the ELDK development package. Also my
changes to the base kernel code (2.4.4) are minimal and are limited
to uart.c (force SCC1 as serial port) and tty_io.c (don't call
rs_8xx_init). Can anyone please point me in the right direction...?
Are you sure this was done well?
If the information above is not sufficient please let me know what
more I could provide. Something tries to restart the system and then
it crashes on trying to reboot. Someone please tell me what I should
be looking at?
...
Freeing unused kernel memory: 52k init
Looks good so far.
Warning: unable to open an initial console.
Did you run the ELDK_MAKEDEV and ELDK_FIXPERM scripts as documented?

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
In C we had to code our own bugs, in C++ we can inherit them.

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RE: Linux on 8260 using ELDK..Help?!?

From: Allen Curtis <hidden>
Date: 2002-09-04 13:58:31

Did you fix the IMMR mapping in PPCBoot? The  CFG_DEFAULT_IMMR  defi-
nition  will  NOT  work with LInux; see the Linux memory map require-
ments - You _must_ map the IMMR at 0xF0000000 or above.
If he got this far in the boot, the IMMR is working.
quoted
Warning: unable to open an initial console.
Did you run the ELDK_MAKEDEV and ELDK_FIXPERM scripts as documented?
Looks like this is the problem....

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