[PATCH/RFC v2] ARM: shmobile: defconfig: Enable LPAE

[Geert Uytterhoeven]

Hi Florian,

On Wed, Apr 25, 2018 at 8:17 PM, Florian Fainelli <f.fainelli at gmail.com> wrote:
> On 04/25/2018 09:14 AM, Fabrizio Castro wrote:
>> On iWave's iwg20m DDR1 512MB memory cannot be accessed with 32-bit
>> addresses, hence we need LPAE.
>>
>> Signed-off-by: Biju Das <biju.das at bp.renesas.com>
>> Signed-off-by: Fabrizio Castro <fabrizio.castro at bp.renesas.com>
>> ---
>> This information is mentioned in the "RZ/G Series User’s Manual: Hardware",
>> Chapter 2, Area Map. Is this patch going to break the functionality of other
>> boards? Comments welcome.
>
> LPAE is not supported by all Cortex-A class cores, for instance
> Cortex-A9 does not support LPAE, if you have boards using such cores,

Thanks for reminding me!

> then this would result in a kernel that would not boot on these
> platforms. Can that be a problem with the shmobile_defconfig?

Yes it is...

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds