Executing ELF file with U-Boot

[Pierre Ficheux]

Le 15/07/2012 22:18, SAeeD a écrit :
> Hello everyone,
>
> I have already booted hello.exe from sample applications by GRUB on an
> i386 machine. (As you know, hello.exe is in ELF format.)
> But I am unable to boot it via U-Boot on Mini2440. I guess it is
> platform independent and it must be some problem either with U-Boot or
> my link script for RTEMS.
> I use tftp to transfer hello.exe on RAM and then use go 0x30000000 to
> execute it. I also tried 0x30000060, 0x30000100, and 0x30000160 but none
> of them working.
> This is while I can execute hello.bin. (achieved by using
> arm-rtems4.10-objcopy command)
> Has any one have any experience of booting or running ELF files with
> U-Boot, specially when that ELF file is related to RTEMS?
>


Be careful as mini2440 console is 38400 bps, but works fine for me.


MINI2440 # setenv baudrate 38400
## Switch baudrate to 38400 bps and press ENTER ...

MINI2440 # tftp 32000000 hello.img
dm9000 i/o: 0x20000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 08:08:11:18:12:27
TFTP from server 10.5.20.63; our IP address is 10.5.20.64
Filename 'hello.img'.
Load address: 0x32000000
Loading: * ##########
done
Bytes transferred = 134868 (20ed4 hex)
MINI2440 # bootm
## Booting kernel from Legacy Image at 32000000 ...
    Image Name:   RTEMS Application
    Created:      2012-07-16   8:16:18 UTC
    Image Type:   ARM RTEMS Kernel Image (uncompressed)
    Data Size:    134804 Bytes = 131.6 kB
    Load Address: 30000100
    Entry Point:  30000100
    Verifying Checksum ... OK
    Loading Kernel Image ... OK
OK
## Transferring control to RTEMS (at address 30000100) ...


*** HELLO WORLD TEST ***
Hello World
*** END OF HELLO WORLD TEST ***


EXECUTIVE SHUTDOWN! Any key to reboot...bsp_reset....



regards


-- 
Pierre FICHEUX  -/- CTO OWI, France -\- pierre.ficheux at openwide.fr
                                          http://ingenierie.openwide.fr
                                          http://www.ficheux.org
I would love to change the world, but they won't give me the source code