[PATCH] ARM: shmobile: Include all 2 GiB of memory on APE6EVM

[Simon Horman]

On Wed, Apr 10, 2013 at 07:27:41AM +0900, Magnus Damm wrote:
> Hi Simon,
> 
> On Wed, Apr 10, 2013 at 1:14 AM, Simon Horman <horms at verge.net.au> wrote:
> > On Tue, Apr 09, 2013 at 09:34:34PM +0900, Simon Horman wrote:
> >> On Mon, Apr 08, 2013 at 10:44:44AM +0900, Magnus Damm wrote:
> >> > From: Takashi Yoshii <takashi.yoshii.zj at renesas.com>
> >> >
> >> > Add 1GiB of DRAM at 0x2_0000_0000
> >> >
> >> > Signed-off-by: Takashi Yoshii <takashi.yoshii.zj at renesas.com>
> >> > Signed-off-by: Magnus Damm <damm at opensource.se>
> >>
> >> Thanks, queued up in the boards-ape6evm branch.
> >
> > I have dropped this patch as it appears to prevent
> > the board from booting.
> 
> Is it possible that LPAE=n and HIGHMEM=y in your particular kernel
> configuration?

Yes, I have confirmed that is what using the ape6evm_defconfig results in.

> >From what I can tell HIGHMEM is broken in cases of large amounts of
> memory. Try disabling that as a short-term workaround. Then of course
> someone needs to track down why the generic code doesn't work as
> expected.

I have confirmed that disabling HIGHMEM allows the board to boot
with this patch applied.

Should I prepare a patch to the defconfig to accompany this patch?