[U-Boot] Standalone application issue.

[mazen.e]

Dear wolfagang,

Again thank you very much.


Please note :



I used  the following command : 

mkimage -A arm -O u-boot -T standalone -C none -a c1000000 -e c1000000 -n 
"Hello World" -d hello_world.bin Hello.img

I  transfred the image file to (using loadb 0x43e00000), the md command
shows the following:

43e00000: 56190527 7b49d5f0 62568253 52020000    '..V..I{S.Vb...R
43e00010: 000000c1 000000c1 ef3a4c3c 00010211    ........<L:.....
43e00020: 6c6c6548 6f57206f 00646c72 00000000    Hello World.....
43e00030: 00000000 00000000 00000000 00000000    ................
43e00040: e92d40f8 e1a05000 e1a00001 e1a06001    . at -..P.......`..
43e00050: eb000062 e3a01006 e59f007c e3a04000    b.......|.... at ..
43e00060: eb00002f e59f7074 eb000023 e1a01000    /...tp..#.......
43e00070: e59f006c eb00002a e59f0068 eb000028    l...*...h...(...
43e00080: e59f0064 e1a01005 eb000025 ea000006    d.......%.......
43e00090: e7962104 e1a01004 e59f0050 e2844001    .!......P.... at ..
43e000a0: e3520000 01a02007 eb00001d e1540005    ..R.. ........T.
43e000b0: dafffff6 e59f0038 eb000019 eb000012    ....8...........
43e000c0: e3500000 0afffffc eb00000d e59f0024    ..P.........$...
43e000d0: eb000013 e3a00000 e8bd80f8 0c1001cf    ................
43e000e0: 0c1001c8 0c1001ef 0c10020d 0c10021a    ................
43e000f0: 0c100225 0c100236 0c10024f e598c054    %...6...O...T.



Bootm  0x43e00000 raises an undefined instruction exception. 


 Booting kernel from Legacy Image at 43e00000 ...
   Image Name:   Hello World
   Image Type:   ARM U-Boot Standalone Program (uncompressed)
   Data Size:    594 Bytes = 594 Bytes
   Load Address: c1000000
   Entry Point:  c1000000
   Verifying Checksum ... OK
   Loading Standalone Program ... OK
OK
undefined instruction
pc : [&lt;0000025e>]	   lr : [<bff7b45c>]
sp : bfe6fdd8  ip : 00000000	 fp : bffae680
r10: bffae104  r9 : 00000000	 r8 : bfe6ff30
r7 : 00000000  r6 : 00000002	 r5 : 00000001  r4 : 00000000
r3 : 00000100  r2 : 00000000	 r1 : 00000001  r0 : 00000001
Flags: nzcv  IRQs off  FIQs off  Mode SVC_32
Resetting CPU ...


----------------------------------------------------------------------------------------------------------------------------------------------------------------

On the other hand, the command arm-linux-gnueabi-nm hello_world | grep
hello_world

0c100000 T hello_world

so, the entry point of the image 0c100000

Hence, I also used the command:

mkimage -A arm -O u-boot -T standalone -C none -a c1000000 -e 0c100000 -n 
"Hello World" -d hello_world.bin Hello.img

the command bootm 0x43e00000 returns the following :


AUB ARNDALE 5250 # bootm 0x43E00000
## Booting kernel from Legacy Image at 43e00000 ...
   Image Name:   Hello World
   Image Type:   ARM U-Boot Standalone Program (uncompressed)
   Data Size:    594 Bytes = 594 Bytes
   Load Address: c1000000
   Entry Point:  0c100000
   Verifying Checksum ... OK
   Loading Standalone Program ... OK
OK


and the program hangs on at this stage giving no sign of life.


Please help what I am missing.

Many thanks and best regards, 




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