[U-Boot] [PATCH 3/6] sunxi: Turn MMC_SUNXI_SLOT_EXTRA into a proper Kconfig option

[Ian Campbell]

On Sun, 2014-10-05 at 17:00 +0200, Hans de Goede wrote:
> Hi,
> 
> On 10/04/2014 10:32 AM, Ian Campbell wrote:
> > On Fri, 2014-10-03 at 17:05 +0200, Hans de Goede wrote:
> >> Note we also drop the SPL check for initializing the 2nd mmc slot, the SPL
> >> check is not necessary with Kconfig, because only options explicitly marked
> >> as also being for the SPL get set during SPL builds.
> >>
> >> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
> > 
> > If we come across a system with e.g. 3 slots then this is just going to
> > get more complex, isn't it? Shall we bite the bullet now and got
> > straight to a bool option per potential slot?
> 
> I think that the current solution is somewhat more KISS then doing a bool
> per slot. So lets wait with moving to a bool per mmc controller, until such
> a hypothetical board with 3 mmc slots actually shows up, and keep what we've
> for now.

That's OK so long as we don't try to care about "forwards compatibility"
for .config files. I have a feeling that we don't in general, I expect
very few people are using oldconfig as opposed to rerunning defconfig,
since there is very little opportunity to tweak things once you have the
defconfig for a board.

Ian.