[U-Boot] Unable to run Standalone applications on NGW100

[Martin Mroz]

Hello,
I wanted to write in to ask if there was something I was doing wrong, with
respect to running standalone applications on U-Boot on an ATNGW100 (AVR32).
I uploaded one of the test programs (hello_world) to the SDRAM (0x10000000)
and verified the contents of memory, as compared to the source file and it
matched up perfectly. However when I attempt to "go 0x10000000" it just
crashes and burns:

U-Boot> go 0x10400000
## Starting application at 0x10400000 ...

 *** Unhandled exception 3 at PC=0xea000000
Bus error at address 0x902901ff
   pc: ea000000    lr: 10400012    sp: 11f6cb2c   r12: 000000ea
  r11: 11f6ce90   r10: 11f6ce90    r9: 10400000    r8: 000000c3
   r7: 00000002    r6: 11fc97ec    r5: 11f6cfa0    r4: 0000895c
   r3: 11f6ce90    r2: 11f6ce90    r1: 00000000    r0: 00000000
Flags: qvnZc
Mode bits: hrje....g
CPU Mode: Supervisor

Stack pointer seems bogus, won't do stack dump
Unhandled exception
?

LR=0x10400012 means that the error occured at:

/* Print the ABI version */
app_startup(argv);
   4: 16 9c       mov r12,r11
   6: 16 93       mov r3,r11
   8: e0 6e 00 00 mov lr,0
   c: ec 0e 03 2e ld.w lr,r6[lr<<0x2]
>>10: 5d 1e       icall lr
printf ("Example expects ABI version %d\n", XF_VERSION);
printf ("Actual U-Boot ABI version %d\n", (int)get_version());

printf ("Hello World\n");

printf ("argc = %d\n", argc);
  12: 30 07       mov r7,0

Any thoughts that you guys had would be wonderful.

Thanks in advance,

Martin Mroz
martinmroz at gmail.com