On Friday 08 May 2015 07:40:44 Kevin Cernekee wrote:
> On Fri, May 8, 2015 at 5:59 AM, Jaedon Shin <jaedon.shin@xxxxxxxxx> wrote:
> > Remove unsupported memory entry for the bcm7362 platform. The BMIPS4380
> > processor only supports ZONE_NORMAL is not available for HIGHMEM.
> >
> > Signed-off-by: Jaedon Shin <jaedon.shin@xxxxxxxxx>
> > ---
> > arch/mips/boot/dts/brcm/bcm97362svmb.dts | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/mips/boot/dts/brcm/bcm97362svmb.dts b/arch/mips/boot/dts/brcm/bcm97362svmb.dts
> > index b7b88e5dc9e7..ab8b01fa7dcf 100644
> > --- a/arch/mips/boot/dts/brcm/bcm97362svmb.dts
> > +++ b/arch/mips/boot/dts/brcm/bcm97362svmb.dts
> > @@ -8,7 +8,7 @@
> >
> > memory@0 {
> > device_type = "memory";
> > - reg = <0x00000000 0x10000000>, <0x20000000 0x30000000>;
> > + reg = <0x00000000 0x10000000>;
>
> Hmm, this is more of a kernel limitation than a hardware limitation,
> though. The board physically has 1GB of memory, right? It is best if
> the DT entry reflects the actual hardware configuration.
>
> The Broadcom kernels enable the CPU's special "XKS01" feature to put
> 1GB of memory in ZONE_NORMAL:
>
> https://github.com/Broadcom/stblinux-3.3/tree/master/linux
>
What exactly is the kernel limitation here?
Arnd
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