freescale-mx28-evk run from ram

[Sascha Hauer]

Hi Du Huanpeng,

On Fri, Mar 02, 2018 at 12:30:37AM +0800, duhuanpeng wrote:
> Dear all,
> 
> Happy Yuanxiao(Lantern) Festival!

Thanks, same to you. Just googled some pictures for the lantern
Festival, it must look amazing to stand under that many lanterns ;)

> In System.map
> 00000000 T __image_start
> 00000000 T start
> 00000000 T _stext
> 00000000 T _text
> 00000004 T __bare_init_start
> 00000004 T get_runtime_offset
> 00000014 t linkadr
> 00000018 T __ld_var_base
> 00000018 T __ld_var__text
> 00000020 t ___text
> 00000024 T __ld_var___rel_dyn_start
> 0000002c t ____rel_dyn_start
> 00000030 T __ld_var___rel_dyn_end
> 00000038 t ____rel_dyn_end
> 0000003c T __ld_var___dynsym_start
> 00000044 t ____dynsym_start
> 00000048 T __ld_var___dynsym_end
> 00000050 t ____dynsym_end
> 00000054 T __ld_var___bss_start
> 0000005c t ____bss_start
> 00000060 T __ld_var___bss_stop
> 00000068 t ____bss_stop
> 
> So, I load barebox.bin to address 0x00000000:

I assume you use freescale-mx28-evk_defconfig, right?
Which image do you start? It seems you are trying to start barebox.bin.
It should be images/barebox-freescale-mx28evk-2nd.img instead.

The image should be linked to 0x0, that is right. The code is position
independent though and the full barebox relocates itself to the end of
the available SDRAM automatically. TEXT_BASE is not relevant here.

Sascha

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