[U-Boot] BSS footprint of FAT very high - SPL issues

[Aneesh V]

Hello Wolfgang, Albert,

On Saturday 05 February 2011 12:28 PM, Albert ARIBAUD wrote:
> Hi Aneesh,
>
> Le 03/02/2011 11:38, Aneesh V a écrit :
>
>> On second thoughts I would like to keep the entire bss in SDRAM. With
>> MMC and FAT support, the SPL is already nearing the IRAM budget in
>> OMAP3. It helps to save some space by moving out bss to SDRAM.
>>
>> If needed, I can fix up the start.S by defining something like
>> _end_of_data. But is that really needed. I do not see any SPL that
>> needs relocation and SDRAM bss at the same time.
>
> "Patches Welcome" :) -- with added thanks for patching all start.S /
> u-boot.lds in the ARM arch consistently.

I see __u_boot_cmd_end as the end of the image to be relocated in all
the scripts. Shall I use this label for this purpose. This will work
for now and save me from touching all those linker scripts. However,
there is a small possibility of this leading to the same problem as
with __bss_start in future. I don't think that should be a big concern.
Do you agree?

Best regards,
Aneesh