On 26/09/2014 at 13:47:03 +0200, Paul Bolle wrote :
> On Mon, 2014-09-15 at 18:15 +0200, Alexandre Belloni wrote:
> > From: Nicolas Ferre <nicolas.fe...@atmel.com>
> >
> > Signed-off-by: Nicolas Ferre <nicolas.fe...@atmel.com>
>
> This landed in next-20140926, as commit 2dc850b62e5b ("ARM: at91:
> introduce basic SAMA5D4 support").
>
> > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> > index b11ad54f8d17..7b44db208f10 100644
> > --- a/arch/arm/Kconfig.debug
> > +++ b/arch/arm/Kconfig.debug
> > @@ -101,6 +101,10 @@ choice
> > bool "Kernel low-level debugging on 9263 and 9g45"
> > depends on HAVE_AT91_DBGU1
> >
> > + config AT91_DEBUG_LL_DBGU2
> > + bool "Kernel low-level debugging on sama5d4"
> > + depends on HAVE_AT91_DBGU2
> > +
>
> Why is this Kconfig symbol needed? Nothing in next-20140926 uses it. Are
> future users perhaps queued somewhere (say, in commits that didn't
> survive today's rather lively linux-next merges)?
>
There is no user because it conflicts with the previous one that is
selected by default by the sama5_defconfig. This is for early print and
it means that you can get earlyprintk either for sama5d3 or sama5d4.
My guess is that it will never be included in any defconfig.
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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