Making ARM multiplatform kernels DT-only?

Christian Robottom Reis kiko at linaro.org
Fri May 4 16:42:07 EDT 2012


On Fri, May 04, 2012 at 10:03:40PM +0200, Linus Walleij wrote:
> On Fri, May 4, 2012 at 4:35 PM, Russell King - ARM Linux
> <linux at arm.linux.org.uk> wrote:
> 
> > Well, my understanding is that there's DT patches around for Versatile.
> 
> Is there? There is some in-tree stuff, but haven't seen any other
> sign of patches.
> 
> Having looked a bit at that I get the impression that this DT code has
> been developed (by Grant I guess) in QEMU only as a proof of concept,
> and never really tested on a real Versatile hardware unit.
> 
> These:
> http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7390/1
> http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7391/1
> 
> make it clear that noone ever tested an MMC card on a Versatile
> booted on real hardware using DT. And I strongly suspect there
> are more instances like that, it seems AACI, GPIO and I2C and
> I guess whatever you cannot test on QEMU is just unsupported.

Isn't there work by Pawel that adds support for more of the Versatile
platform? My quick searching finds at least:

    http://comments.gmane.org/gmane.linux.drivers.i2c/10143
    http://comments.gmane.org/gmane.linux.ports.arm.kernel/143523

I think the latter is merged already, but I may be wrong.
-- 
Christian Robottom Reis, Engineering VP
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