[U-Boot-Users] boot linux kernel problem

[Paul McAvoy]

On Sat, Mar 01, 2003 at 03:17:47AM +0100, yu wrote:
> Hello. Everyone.
> I use ppcboot and linux on a walnut board for test.
> I compile the linux kernel source src-linuxppc_2_4_devel from 
> ppckernel.org with the command:
> make pImage
> 
> then I copy the pImage file to walnut board RAM and boot it.
> but the linux kernel hang up after the decompression.
> What is the possible reason?
> thanks in advance.

I've actually experienced this running on an Arm kernel.  It is able to
decompress the image, then init's the mem, sets up the hash tables, and hangs.
I don't know exactly what is going on.  I've tried setting up the environment
in memory at addr 0x100 as specified for my system (TAG Table) but nothing
seems to work.  

I was thinking that possbly the image needs to run from ram, but that has not
worked yet either. 

Sorry,  I just wanted to share my woes! :)  I'm working on this u-boot thing
trying to see if possibly that will help me get my kernel running.

- Paul

> 
> 
> 
> 
> PPCBoot 1.2.0 (Mar  1 2003 - 03:04:51)
> 
> CPU:   IBM PowerPC 405GP Rev. E at 200 MHz (PLB=100, OPB=50, EBC=50 MHz)
>            PCI sync clock at 33 MHz, internal PCI arbiter enabled
>            16 kB I-Cache 8 kB D-Cache
> Board: ### No HW ID - assuming WALNUT405
> I2C:   ready
> DRAM:  32 MB
> FLASH: 512 kB
> In:    serial
> Out:   serial
> Err:   serial
> KGDB:  kgdb ready
> ready
> BEDBUG:ready
> Hit any key to stop autoboot:  0
> => tftpboot 600000 pImage
> ENET Speed is 100 Mbps - FULL duplex connection
> ARP broadcast 1
> TFTP from server 192.168.1.10; our IP address is 192.168.1.20
> Filename 'pImage'.
> Load address: 0x600000
> Loading: #################################################################
>          ############################################
> done
> Bytes transferred = 556097 (87c41 hex)
> => bootm 600000
> ## Booting image at 00600000 ...
>    Image Name:   Linux-2.4.20-pre7
>    Created:      2003-03-01   1:06:57 UTC
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    556033 Bytes = 543 kB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
> 
> 
> -- 
> Maoyuan Yu
> FPGA-Processor Group
> Dept. of Computer Science V
> University of Mannheim
> B6,23-29A - 68131 Mannheim - Germany
> Phone:+(49)621 181 2631 - Fax:+(49)621 181 3580
> mailto:yu at mp-sun1.informatik.uni-mannheim.de
> http://cern.ch/myu
> 
> 
> 
> 
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-- 
Paul McAvoy	-- Informatico Magnifico --		 http://queda.net
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