[PATCH 1/3] ARM: dts: am335x-phytec-phyflex: Increase kernel partition on SPI NOR

Sascha Hauer s.hauer at pengutronix.de
Tue Dec 9 02:52:26 PST 2014


On Tue, Dec 09, 2014 at 11:16:47AM +0100, Teresa Gámez wrote:
> Hello Sascha,
> 
> Am Dienstag, den 09.12.2014, 10:13 +0100 schrieb Sascha Hauer:
> > Hi Teresa,
> > 
> > On Mon, Dec 08, 2014 at 10:59:49AM +0100, Teresa Gámez wrote:
> > > Increase kernel partition to end of SPI NOR.
> > > 
> > > Signed-off-by: Teresa Gámez <t.gamez at phytec.de>
> > > ---
> > >  arch/arm/dts/am335x-phytec-phyflex.dts | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/arch/arm/dts/am335x-phytec-phyflex.dts b/arch/arm/dts/am335x-phytec-phyflex.dts
> > > index c4481f5..0de7e87 100644
> > > --- a/arch/arm/dts/am335x-phytec-phyflex.dts
> > > +++ b/arch/arm/dts/am335x-phytec-phyflex.dts
> > > @@ -187,7 +187,7 @@
> > >  
> > >  		partition at 4 {
> > >  			label = "kernel";
> > > -			reg = <0xe0000 0x400000>;
> > > +			reg = <0xe0000 0x0>;
> > >  		};
> > 
> > I wasn't aware barebox handles this case like you intend here. What
> > about the kernel? Won't you end up with a zero sized partition there?
> 
> have a look at include/linux/mtd/partitions.h in the linux kernel.
> 
> There is a macro defined 
> #define MTDPART_SIZ_FULL        (0)
> 
> And the comment above says: 
> size: the partition size; if defined as MTDPART_SIZ_FULL, the partition
> will extend to the end of the master MTD device.
> 
> This works fine for kernel and barebox.

Oh nice, didn't know that. In this case consider your patches applied.

Sascha

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