[ARMedslack] Generic Allwinner Slackware installer, was: Announcing Fedora 19 ARM remix for Allwinner SOCs release 1, now with A20 support (fwd)

stanley garvey stanley at stanleygarvey.com
Sun Jul 28 09:19:19 UTC 2013

On Jul 28, 2013 09:52 "Stuart Winter" <m-lists at biscuit.org.uk> wrote:

> > > I noticed RPi patches also not making it into kernel.org. Last
> > > weekend
> > > I tried to compile a generic 3.10.1 kernel for the RPi and it
> > > failed
> > > to boot. Rather than patch kernel source for a specific ARM
> > > target,
> > > are we expected to use the generic kernel and build a device tree
> > > binary?
> That's the idea, yes except that you wouldn't have to build the device
> tree blob since if support is compiled into the kernel for that
> device,
> then the DTB would already have been built and would be provided with
> the
> kernel package. The DTBs are generated by kernel.SlackBuild for the
> specific architectures, so once additional support is added, the
> architecture name will need to be appended to the list for the
> specific
> kernel.
> I tried to build an armv6 and armv7 generic kernel, but since the base
> line is set to armv6, when armv7 code begins to build, it fails since
> the
> ARMv6 CPUs cannot execute v7 instructions. I don't understand why you
> can
> select both CPUs in this case. You need to select ARMv7 to choose the
> hardware that has a v7 CPU. I guess the whole thing isn't entirely
> complete yet, or perhaps I'm misunderstanding what you can do with it.
> Needless to say, I'm building a ganeric armv7 kernel now.
> Thanks for that, I am building a generic armv6 kernel now, using the
> bcm2835_defconfig. hoping it will boot later today. This is what I
> should have done in the first place rather than trying to make
> oldconfig :( then I can make any tweeks it may require.
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