2014-12-12 16:43:27

by Jason Cooper

[permalink] [raw]
Subject: Re: [PATCH 3/4] arm64: dts: Add mediatek MT8173 SoC and evaluation board dts and Makefile

On Fri, Dec 12, 2014 at 04:08:25PM +0800, Eddie Huang wrote:
> On Thu, 2014-12-11 at 18:02 +0000, Mark Rutland wrote:
> > On Wed, Dec 10, 2014 at 10:50:01AM +0000, Eddie Huang wrote:
...
> > > + memory {
> >
> > Nit: should be memory@40000000 (and you'll need to add device_type =
> > "memory").
> >
> > > + reg = <0 0x40000000 0 0x40000000>;
> > > + };
>
> skeleton.dtsi already has /memory node with address-cells=2,
> size-cells=1, which will cause build warning if I change to use
> memory@40000000, because we use size-cells=2. I will not include
> skeleton.dtsi and follow your suggestion in next version.

There's skeleton64.dtsi in arch/arm/boot/dts (arm 32bit has LPAE-enabled
systems). Perhaps we should come up with a way to share both across the
arches?

hth,

Jason.


2014-12-15 13:32:18

by Mark Rutland

[permalink] [raw]
Subject: Re: [PATCH 3/4] arm64: dts: Add mediatek MT8173 SoC and evaluation board dts and Makefile

On Fri, Dec 12, 2014 at 04:42:54PM +0000, Jason Cooper wrote:
> On Fri, Dec 12, 2014 at 04:08:25PM +0800, Eddie Huang wrote:
> > On Thu, 2014-12-11 at 18:02 +0000, Mark Rutland wrote:
> > > On Wed, Dec 10, 2014 at 10:50:01AM +0000, Eddie Huang wrote:
> ...
> > > > + memory {
> > >
> > > Nit: should be memory@40000000 (and you'll need to add device_type =
> > > "memory").
> > >
> > > > + reg = <0 0x40000000 0 0x40000000>;
> > > > + };
> >
> > skeleton.dtsi already has /memory node with address-cells=2,
> > size-cells=1, which will cause build warning if I change to use
> > memory@40000000, because we use size-cells=2. I will not include
> > skeleton.dtsi and follow your suggestion in next version.
>
> There's skeleton64.dtsi in arch/arm/boot/dts (arm 32bit has LPAE-enabled
> systems). Perhaps we should come up with a way to share both across the
> arches?

As I mentioned in my other reply [1], I think if anything it would be
better to get rid of the skeleton dtsi entirely.

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-December/310617.html

Thanks,
Mark.