[U-Boot] Use .data section in SPL ?

[Simon Glass]

Hi Tom,

On 10 December 2014 at 07:06, Tom Rini <trini at ti.com> wrote:
> On Wed, Dec 10, 2014 at 04:39:39PM +0900, Masahiro Yamada wrote:
>> Hi.
>>
>>
>> I notice  SPL is using .data section
>>
>>
>>
>> u32 *boot_params_ptr = NULL;
>> struct spl_image_info spl_image;
>>
>> /* Define board data structure */
>> static bd_t bdata __attribute__ ((section(".data")));
>>
>>
>>
>> If SPL is running on an execute-in-place device such NOR flash,
>> .data section is not writable.
>>
>> common/spl/spl_nor.c does not work.
>
> spl_nor.c only works today on PowerPC where there's nothing shoved into
> the .data section.
>
> And all of this is related to what's needed to enable DM in SPL on ARM
> as well, iirc anyhow.
>

Can you please explain the SPL problem on ARM a bit more? If It could
understand what is going on, or how to repeat it, I might be able to
help. I'd really like to enable this DM SPL support...

Regards,
Simon