Re: [PATCH 1/3] SPEAr13xx_defconfig: Enable Memory split 2G/2Gneeded

From: Shiraz Hashim
Date: Sun Feb 10 2013 - 22:50:45 EST

Hi Nicolas,

On Fri, Feb 08, 2013 at 12:49:22PM -0500, Nicolas Pitre wrote:
> On Fri, 8 Feb 2013, Viresh Kumar wrote:
> >
> > By mistake you have added an ST internal list in cc, fixed it now.
> >
> > Subject should be:
> >
> > ARM: SPEAr13xx: Enable 2G/2G Memory split in defconfig
> >
> > On 8 February 2013 16:16, Vijay Kumar Mishra <vijay.kumar@xxxxxx> wrote:
> > > Memory split 2G/2G is enabled as needed for SPEAr1310 RevC board to boot.
> > > Before enabling this option the boot was hanging at uncompressing linux.
> I disagree. The subject could have been "put our head in the sand and
> paper over bugs".
> Please don't do that. There is no reason for any machine not to boot
> way past "Uncompressing Linux" with the default split. The likely
> reason it works with the 2G:2G split is because in that case the virtual
> and physical RAM addresses in the kernel are the same, and therefore
> missing p2v or v2p conversions are invisible.

I agree. Actually the details are misleading. SPEAr13xx chose this
option just for its own preference over high memory support.

I think you should drop this patch and just enable high memory support
rather, if SPEAr13xx doesn't have any problem with that.

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