[U-Boot] [PATCH 03/11] Kconfig: add CONFIG_SYS_BOOTM_LEN

[Tom Rini <trini@konsulko.com>]

On Mon, Sep 28, 2015 at 04:35:09PM +0100, Ryan Harkin wrote:
> Thanks Tom.
> 
> On 28 September 2015 at 16:10, Tom Rini <trini@konsulko.com> wrote:
> 
> > On Wed, Sep 23, 2015 at 10:25:35AM -0700, Ryan Harkin wrote:
> >
> > > As config migrates from board config files to Kconfig, when adding
> > > CONFIG_SYS_BOOTM_LEN to a platform, I decided to add
> > > Kconfig support for CONFIG_SYS_BOOTM_LEN.
> > >
> > > Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
> > > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> > > CC: Masahiro Yamada <yamada.m@jp.panasonic.com>
> > > CC: Simon Glass <sjg@chromium.org>
> > > CC: Linus Walleij <linus.walleij@linaro.org>
> >
> > Thanks for trying to do this.  The problem however is that you need to
> > use tools/moveconfig.py so that all of the other boards (which is a lot)
> > get updated too, otherwise they fail to build.
> >
> 
> Yes, I just read another email on the list about using moveconfig.py.
> That's a big job, as you say.
> 
> 
> > Since that's kind of a big thing, can you split this series into a v2 of
> > things which really should be in before the release, and then nice
> > cleanups like this which can go in once the merge window is open again?
> 
> Thanks!
> >
> 
> So I should post a v2 that uses CONFIG_SYS_BOOTM_LEN like all the other
> boards for now?  Then submit a new series to use moveconfig.py to Kconfig?

Yeah, for this release at least.

> I already tried using moveconfig.py for this and it fails on every
> instance, from what I can tell.  I think the other board configs using the
> shift operation makes this tricky.
> 
> I guess there are two options: make Kconfig support complex values (eg. to
> allow << operators, etc.) or convert all the other boards to use absolute
> values.  Of course, another option is to leave it alone.

Well, if you can convince the Kconfig folks to take shift operations as
valid values on numeric inputs I bet other projects would appreciate it.
But it might be easier to start with a "simple" script that finds all of
the configs that define it to a shifted value and use printf to convert
it to hex.  Then moveconfig.py should be able to convert.

-- 
Tom
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