From: Michael Olbrich <m.olbrich@pengutronix.de>
To: Roland Hieber <r.hieber@pengutronix.de>
Cc: distrokit@pengutronix.de
Subject: Re: [DistroKit] [PATCH 0/3] platform-rpi: various cleanups
Date: Thu, 1 Nov 2018 10:42:38 +0100 [thread overview]
Message-ID: <20181101094238.jjszexxbyosx7766@pengutronix.de> (raw)
In-Reply-To: <20181031223738.emsmprmcggivzryh@pengutronix.de>
On Wed, Oct 31, 2018 at 11:37:38PM +0100, Roland Hieber wrote:
> On Fri, Oct 26, 2018 at 03:29:16PM +0200, Robert Schwebel wrote:
> > On Fri, Oct 26, 2018 at 02:15:52PM +0200, Michael Olbrich wrote:
> > > I built the rpi platform to check that my layer change works correctly and
> > > I noticed some other issues. These are just some minor fixes and cleanups.
> > >
> > > I also noticed that the kernel config is quite different from the v7a
> > > config. Some of that seems to be pretty arbitrary and suboptimal. E.g. no
> > > optimized ARM crypto implementations, no idle handler and things like that.
> > > Is there a reason for this?
> >
> > I don't think so, but I havn't cared much about the RPi. Roland might
> > have more insights, but he is currently on holiday.
>
> The basic state is "rpi boots a kernel", nothing more. Due to lack of
> use in RPI 1 I haven't gotten around to having a better look and
> cleaning up the config yet. But I wonder now that ptxdist has layer
> support - could that already be used for building up a kernel config
> from a platform-independent part that stays the same as a baseline for
> all platforms and a platform-dependent part which only switches on the
> respective platform support, drivers etc?
Hmm, we may be able to use kernel config for v7a as a base for rpi. I don't
think using a common base is a good idea: Maintaining it would be painful.
We could add:
KERNEL_REF_CONFIG := $(call ptx/in-path,PTXDIST_PATH_LAYERS,configs/platform-v7a/kernelconfig)
I'm not sure how useful that will be.
Michael
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next prev parent reply other threads:[~2018-11-01 9:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-26 12:15 Michael Olbrich
2018-10-26 12:15 ` [DistroKit] [PATCH 1/3] platform-rpi: image-boot-vfat: add missing dependency Michael Olbrich
2018-10-26 12:15 ` [DistroKit] [PATCH 2/3] platform-rpi: platformconfig: building the kernel requires openssl Michael Olbrich
2018-10-26 12:15 ` [DistroKit] [PATCH 3/3] platform-rpi: platformconfig: some cleanup Michael Olbrich
2018-10-26 13:29 ` [DistroKit] [PATCH 0/3] platform-rpi: various cleanups Robert Schwebel
2018-10-31 22:37 ` Roland Hieber
2018-11-01 9:42 ` Michael Olbrich [this message]
2018-11-01 9:55 ` Robert Schwebel
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