[U-Boot] [RFC] Rearrange CONFIG_* macros

[york sun]

On 09/27/2016 10:55 AM, Simon Glass wrote:
> Hi York,
>
> On 27 September 2016 at 11:39, york sun <york.sun at nxp.com> wrote:
>> Guys,
>>
>> I want to discuss to rearrange the current CONFIG_* macros used by
>> Freescale Layerscape SoCs. We have been encouraged to use CONFIG_SYS_*
>> macros to define hardware setting, and other CONFIG_* macros for user
>> setting. Clearly this has changed. Kconfig options are used for most
>> user settings from now on. I am OK with it. But for existing
>> CONFIG_SYS_* macros, we need a plan to either move them out of CONFIG_*
>> name space, or move some to Kconfig, if that makes sense. Since most our
>> CONFIG_SYS_* macros are cross platforms (including armv7 and armv8), if
>> using Kconfig option, do we add another mach-fsl folder to host the
>> Kconfig, or somewhere else? We also have macros cross ARM and PowerPC.
>> So we either move them out of arch/, or duplicate them for both arch.
>>
>> If we move them to another name space, for example SYS_FSL_*, do we want
>> to move them out of config.h?
>>
>> Any suggestion/comment?
>
> I wonder if some of these (the ones that represent actual values
> rather than enabling functions) can move to device tree, or tables?

Interesting idea. Putting those values into device tree of table will 
change a lot of data structure, as some macros are used to define 
arrays, or to initialize variables.

York