[U-Boot-Users] Hello_world problem

[Frank Young]

Hi all,

I am using ppc 405 custom board. I managed to have u-boot running on my 
board. But for some reason the hello_world couldn't run on my board. Below 
are the detail:

1) I used TFTP to download hello_world.srec and put it to memory starting 
from 0x40004.
=> tftpboot 0x40004 hello_world.srec
ENET Speed is 100 Mbps - HALF duplex connection
TFTP from server 138.31.3.162; our IP address is 138.31.3.79
Filename 'hello_world.srec'.
Load address: 0x40004
Loading: #
done
Bytes transferred = 1920 (780 hex)


2) Run the application from 0x40004, as written in the manual. But the 
following error came up:
=> go 0x40004 Hello world! This is a test
## Starting application at 0x00040004 ...
NIP: 00002B94 XER: 00000000 LR: 0000219C REGS: 00006cf5 TRAP: 0700 DAR: 
00000000
MSR: 00001000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00

GPR00: 00FEA9A8 00006DE5 40000000 00006DF5 00FBBE7C 00000000 00000000 
3A0AFB97
GPR08: 00FE6674 F0003964 00000003 00000002 00FF96B4 00000000 01002100 
0175D000
GPR16: 00000000 00007CF9 00034286 00000000 00001000 00006DE5 00000000 
0000219C
GPR24: 00002B94 00000D0A 00000000 00000007 00010000 00FBBF60 0100270C 
00FBBE7C
** Illegal Instruction **
Call backtrace:
00000000 00000000
Program Check Exception


I guess I didn't download the application to the right place or I didn't 
download the right file. So in the memory starting from 40004 has 
unrecognized instruction. But what should I do if I want to use TFTP to 
download image and run it?

Thanks,

Frank

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