[U-Boot] switching to single .config configuration issues

[Masahiro Yamada]

Hi Hanna, Simon,

2015-04-29 12:05 GMT+09:00 Simon Glass <sjg at chromium.org>:
> +Masahiro (new address)
>
> Hi Hanna,
>
> On 27 April 2015 at 07:43, Hanna Hawa <hannah at marvell.com> wrote:
>> Hi everyone,
>>
>>
>>
>> I’m working on the latest u-boot 2015.04 trying to rebase my repository to
>> latest code.
>
> I would suggest going with upstream/master (targeting 2015.07) since
> there are several driver model changes since 2015.04 (USB, PCI,
> Ethernet). There are still patches going in but the bulk of it should
> be there.
>
>>
>> And I have question regarding patch e02ee2548afe (kconfig: switch to single
>> .config configuration)
>>
>>
>>
>> Issues that I face in the current solution (single .config):
>>
>> For my usage most of the CONFIG options will not supported in the SPL, we
>> need the SPL very tiny and most of the CONFIG will be enabled in the u-boot,
>> need to undef/disable(set=n) for every CONFIG in scripts/Makefile.uncmd_spl/
>> include/config_uncmd_spl.h
>>
>> Also for future usage if we want to delete the defines of the commands from
>> the include file and move it to defconfig file, then need to undef them in
>> the SPL code.
>
> Masahiro is the expert here. The idea is to use SPL-specific options
> for SPL. For example CONFIG_SPL_I2C_SUPPORT. This is much the same as
> before.
>
> I suggest you create some SPL options for your new features, so that
> they are only enabled in SPL when you want them.


As Simon said, our current solution is to add CONFIG_SPL_-prefixed ones
to config options we want to turn on/off separately.




-- 
Best Regards
Masahiro Yamada