[U-Boot] [PATCH v3 09/10] kconfig: move CONFIG_OF_* to Kconfig

[Masahiro Yamada]

Hi.



On Fri, 26 Sep 2014 09:49:01 -0400
Tom Rini <trini at ti.com> wrote:

> On Thu, Sep 25, 2014 at 07:44:30AM -0600, Simon Glass wrote:
> > Hi,
> > 
> > On 25 September 2014 07:18, Tom Rini <trini at ti.com> wrote:
> > > On Thu, Sep 25, 2014 at 04:38:09PM +0900, Masahiro Yamada wrote:
> > >> Hi Simon,
> > >>
> > >>
> > >>
> > >> On Wed, 24 Sep 2014 17:08:11 -0600
> > >> Simon Glass <sjg at chromium.org> wrote:
> > >>
> > >> > > +config OF_EMBED
> > >> > > +       bool "Embedded DTB for DT control"
> > >> > > +       help
> > >> > > +         If this option is enabled, the device tree will be picked up and
> > >> > > +         built into the U-Boot image.
> > >> >
> > >> > Can you please add " This is suitable for debugging
> > >> > and development only and is not recommended for production devices."
> > >>
> > >>
> > >> Why is CONFIG_OF_EMBED not recommended for production devices?
> > >
> > > It's kind-of a question for the devicetree folks.  The last time (a
> > > while back now) I asked for some general advice on how a DT should be
> > > shipped with hardware, being able to update the DT without replacing the
> > > whole of firmware was seen as a good thing.  Combine this with that we
> > > should try (yes, we can't today due to incompatible bindings) share the
> > > DT between U-Boot and the kernel (or really, U-Boot and anything but
> > > again, last I checked the BSD bindings were very very different),
> > > embedding doesn't seem good.
> > 
> > Addressing the binding differences, it's hard to see what these are
> > right now since the sorting and other churn in the Linux device tree
> > files. I think it would be good to sync the U-Boot files to the Linux
> > ones so we can see what bindings still differ.
> 
> Yes, agreed.


Interesting.

If so, "u-boot,dm-pre-reloc" is a bad idea, isn't it?

It seems a really U-Boot-specific property,
although I only see it in test/dm/test.dts.


Best Regards
Masahiro Yamada