[U-Boot] [PATCH 11/13] sunxi: Add support for android boot image

[Paul Kocialkowski]

Le mardi 01 septembre 2015 à 14:54 +0100, Ian Campbell a écrit :
> On Tue, 2015-09-01 at 13:29 +0200, Maxime Ripard wrote:
> > On Tue, Sep 01, 2015 at 11:46:05AM +0100, Ian Campbell wrote:
> > > On Tue, 2015-09-01 at 11:00 +0200, Paul Kocialkowski wrote:
> > > > Le mardi 01 septembre 2015 à 08:08 +0100, Ian Campbell a écrit :
> > > > > On Mon, 2015-08-31 at 16:46 +0200, Maxime Ripard wrote:
> > > > > > When using the fastboot boot command, the image sent to U-Boot 
> > > > > > will 
> > > > > > be an
> > > > > > Android boot image. If the support is missing, that won't 
> > > > > > obviously 
> > > > > > work,
> > > > > > so we need it in our configuration.
> > > > > 
> > > > > Dumb question: Is it possible to boot anything _other_ than an 
> > > > > android
> > > > > boot image via fastboot?
> > > > > 
> > > > > If not then one of the two config options really ought to imply the
> > > > > other.
> > > > 
> > > > Well, those options have not been moved to Kconfig yet, but when they
> > > > do, there should indeed be such a dependency.
> > > > 
> > > > Otherwise, I believe it still makes sense to have two separate 
> > > > options
> > > > because one might want Android boot image support without fastboot.
> > > 
> > > Then fastboot should depend on android boot image support but not vice
> > > -versa.
> > 
> > Indeed, but it's not yet a Kconfig option.
> 
> I'm not sure that's a necessary prerequisite, in some common place do:
> 
> #if defined(CONFIG_CMD_FASTBOOT) && !defined(CONFIG_ANDROID_BOOT_IMAGE)
> #define CONFIG_ANDROID_BOOT_IMAGE
> #endif

Well, I'm not sure adding Kconfig-style logic really is a good idea as
it removes some incentive to do things right and move everything over to
Kconfig (which is out of the scope of this patch set, I believe).

In addition, I don't see what a relevant place to but this in would be.
Putting that in sunxi-common.h is just adding two useless extra lines
(having the define is sufficient).

Overall, I don't think this is a good idea when we have Kconfig around
the corner to do things right…

-- 
Paul Kocialkowski, Replicant developer

Replicant is a fully free Android distribution running on several
devices, a free software mobile operating system putting the emphasis on
freedom and privacy/security.

Website: http://www.replicant.us/
Blog: http://blog.replicant.us/
Wiki/tracker/forums: http://redmine.replicant.us/
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