[PATCH v8 15/16] ARM: LPAE: add support for ATAG_MEM64

Will Deacon will.deacon at arm.com
Tue Nov 8 19:24:37 EST 2011

Hi Nicolas,

On Tue, Nov 08, 2011 at 11:38:12PM +0000, Nicolas Pitre wrote:
> On Mon, 7 Nov 2011, Catalin Marinas wrote:
> > From: Will Deacon <will.deacon at arm.com>
> > 
> > LPAE provides support for memory banks with physical addresses of up
> > to 40 bits.
> > 
> > This patch adds a new atag, ATAG_MEM64, so that the Kernel can be
> > informed about memory that exists above the 4GB boundary.
> > 
> > Signed-off-by: Will Deacon <will.deacon at arm.com>
> > Signed-off-by: Catalin Marinas <catalin.marinas at arm.com>
> NAK.  Any LPAE capable platform to come is, by definition, a new 
> platform.  It therefore should be using DT upfront.

Ok, well in that case it's a simple matter of defining #address-cells
correctly in your .dts and we can simply drop this patch. Does that sound
like the right approach?


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