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* Serial Console / Booting Linux with the PPCbug on MVME2100?
@ 2004-03-31 12:08 okorpil
  2004-03-31 17:09 ` Tom Rini
  0 siblings, 1 reply; 7+ messages in thread
From: okorpil @ 2004-03-31 12:08 UTC (permalink / raw)
  To: linuxppc-embedded


Hello!

I'm currently trying to boot Linux 2.4.25 on a Motorola VME 2100 board,
featuring a MPC8240 controller.

I want to use the PPCbug monitor to boot Linux via TFTP - the download
step completes successfully:



PPC5-Bug>nbo
Network Booting from: DEC21143, Controller 0, Device 0
Device Name: /pci@fec00000/pci1011,19@e,0:0,0
Loading: images/zImage-2.4.25.prep

Client IP Address      = 192.168.1.3
Server IP Address      = 192.168.1.1
Gateway IP Address     = 0.0.0.0
Subnet IP Address Mask = 255.255.255.0
Boot File Name         = images/zImage-2.4.25.prep
Argument File Name     =

Network Boot File load in progress... To abort hit <BREAK>

Bytes Received =&954298, Bytes Loaded =&954298
Bytes/Second   =&954298, Elapsed Time =1 Second(s)

Residual-Data Located at: $01F5511C



And then the system seems to hang - it will no longer react to the ABT
(ABORT) interrupt switch, and will only work again on a cold reset (RST).

PreP Netboot is enabled in the ENV of the PPCbug.

The kernel has the following command line args compiled in:
Initial kernel command string:
"console=ttyS0,9600 root=/dev/nfs
nfsroot=192.168.1.1:/home/korpo/praktikum/mvme2100/rootfs ip=192.168.1.3:192.168.1.1::255.255.255.0:mvme2100::off"

(without the wraparound, of course)

Serial console support is builtin, no PMC VGA controller is onboard.

Why don't I at least get a serial console output??


Thanks a lot in advance,
Oliver Korpilla
CS student at the University of Applied Sciences at Landshut, Germany

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

^ permalink raw reply	[flat|nested] 7+ messages in thread
* Serial Console / Booting Linux with the PPCbug on MVME2100?
@ 2004-04-01 10:55 okorpil
  0 siblings, 0 replies; 7+ messages in thread
From: okorpil @ 2004-04-01 10:55 UTC (permalink / raw)
  To: linuxppc-embedded


To complete the information about what I tried to make it work:

Network PReP-Boot Mode Enable [Y/N] = Y

is in NVRAM.

The board is a MVME2100 with a MPC8240 microcontroller (both from
Motorola). I want to use a serial console only (no PMC VGA card). I may
use either netboot or from RAM/Flash (with NFS after) for booting, but I
have no harddisk.

I've built kernels for CHRP/PREP and for Sandpoint.

I've built kernels for PPLUS, LOPEC and PRMPC750, and tried their bugboot
images.

I've tried a mkbugboot modified zImage.prep and vmlinux.gz (for PREP).

I do not get beyond the "Residual Data Located at xxx" step, then it seems
to hang (with the PREP image). All others images produce Alignment or
other errors. Several others seem to have gone beyond the step with a
similar config, so I wonder.

I attached my .config to another post to the same Subject.

Some people seem to have built for a similar configuration with
CONFIG_PREP, but this seems to have already vanished from the list of
configuration macros (and from grepping the kernel source).

I seem to have problems building a kernel for a 8260 config - is this
broken?

I've nearly completely run out of ideas and hope someone of you people
knows something about this.

Thanks in advance,
Oliver Korpilla

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

^ permalink raw reply	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2004-04-01 15:53 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-03-31 12:08 Serial Console / Booting Linux with the PPCbug on MVME2100? okorpil
2004-03-31 17:09 ` Tom Rini
2004-04-01  8:26   ` okorpil
2004-04-01 15:09     ` Tom Rini
2004-04-01 15:53       ` Oliver Korpilla
2004-04-01  8:45   ` okorpil
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2004-04-01 10:55 okorpil

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