[U-Boot] [PATCH v2 9/14] sunxi: Enable UBI and NAND support

[Tom Rini <trini@konsulko.com>]

On Tue, Nov 22, 2016 at 04:54:53PM +0100, Maxime Ripard wrote:
> Hi Tom,
> 
> On Tue, Nov 22, 2016 at 10:24:27AM -0500, Tom Rini wrote:
> > On Tue, Nov 22, 2016 at 01:38:39PM +0100, Maxime Ripard wrote:
> > > From: Hans de Goede <hdegoede@redhat.com>
> > > 
> > > Enable the NAND and UBI support in the configuration header so that we can
> > > (finally) use it.
> > > 
> > > Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> > > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> > > ---
> > >  board/sunxi/Kconfig            |  8 ++++++++
> > >  include/configs/sunxi-common.h | 14 ++++++++++++++
> > >  2 files changed, 22 insertions(+), 0 deletions(-)
> > > 
> > > diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
> > > index e1d4ab148f08..c6a620a20167 100644
> > > --- a/board/sunxi/Kconfig
> > > +++ b/board/sunxi/Kconfig
> > > @@ -460,6 +460,14 @@ config AXP_GPIO
> > >  	---help---
> > >  	Say Y here to enable support for the gpio pins of the axp PMIC ICs.
> > >  
> > > +if NAND_SUNXI
> > > +config CMD_NAND
> > > +	default y
> > > +
> > > +config CMD_UBI
> > > +	default y
> > > +endif
> > 
> > We want to move away from adding 'default y' to board/*/Kconfig and
> > instead have 'default y if ...' where the option is declared.
> 
> Yeah, I wasn't really sure about this. You can find the two
> constructs in there. But ok, that's noted :)
> 
> > In this particular case we have a TODO of adding a NAND option that
> > would be used to hide things like CMD_NAND and other sub-sections
> > rather than using CMD_NAND for everything.
> 
> Ok.
> 
> > That said, we've just got 2 sunxi boards with NAND today right?  Maybe
> > we shouldn't make this default for all sunxi boards yet, yes?  Thanks!
> 
> Not really. The huge majority of the rather old boards (basically
> everything older than a year or so) is using NAND. However, they're
> all using MLC NANDs, which are not supported into UBI right now.

Ah, good to know, OK.  So v2, default y if ARCH_SUNXI on cmd/Kconfig :)


-- 
Tom
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