[U-Boot] [PATCH] mx6sabresd: Move the DCD settings to spl code

Fabio Estevam
2014-11-14T11:57:28Z

Hi Nikolay,

On Fri, Nov 14, 2014 at 9:48 AM, Nikolay Dimitrov <picmaster@mail.bg> wrote:
> Hi Fabio,
>
> On 11/13/2014 11:58 PM, Fabio Estevam wrote:
>>
>> From: Fabio Estevam <fabio.estevam@freescale.com>
>>
>> mx6sabresd_spl.cfg configures CCM registers, GPR registers and CCM_CCOSR.
>>
>> Move the configuration to the spl code.
>
>
> I forgot to asker earlier, but what are the benefits of going from DCD to
> SPL code to provide HW initialization?

We already went through the hard part of removing the DDR settings
from DCD in the SPL case. Now all is left is a few register writes
that could be better placed into SPL code.

Some advantages:

- Shorter and cleaner code - see the stat diff of this series. This
will avoid lots of duplication of the same spl DCD settings for
several boards.
- Do all the register settings in C rather than in a static DCD table.
Easier to maintain and provide future changes.
- We really don't need to do such simple register settings from DCD ;-)