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Re: [RFC PATCH] ARM: add v7 LPAE multi-platform defconfig

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  Re: [RFC PATCH] ARM: add v7 LPAE multi-platform defconfig Olof Johansson <olof@lixom.net> - 2015-11-10 04:40 +0100
    RE: [RFC PATCH] ARM: add v7 LPAE multi-platform defconfig Huan Wang <alison.wang@freescale.com> - 2015-11-10 08:20 +0100

#1266207 — Re: [RFC PATCH] ARM: add v7 LPAE multi-platform defconfig

Hi Alison,

On Mon, Nov 9, 2015 at 6:53 PM, Alison Wang <b18965@freescale.com> wrote:
> v7 LPAE multi-platform defconfig is based on v7 multi-platform
> defconfig and adds LPAE support.
>
> The platforms based on Cortex-A7/A12/A15/A17, PJ4B, Krait are
> also enabled in this defconfig. But Cortex-A5/A8/A9, Scorpion
> and PJ4 are removed.
>
> This defconfig is verified on LS1021A which enables GIANFAR,
> I2C, WATCHDOG, AUDIO, EDMA and DSPI drivers, etc.
>
> The other platforms need to be verified by the platform
> maintainers too.
>
> Signed-off-by: Alison Wang <alison.wang@freescale.com>

This has been discussed before, and what we have chosen to do is to
just have a multi_v7_defconfig that all these platforms are enabled on
but with LPAE off.

Instead, what we do when building (and on our build/boot builders) is
to take multi_v7 and provide the snippet that turns on ARM_LPAE at
that time.


Regards,

-Olof
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#1266286

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Hi, Olof,
 
> On Mon, Nov 9, 2015 at 6:53 PM, Alison Wang <b18965@freescale.com> wrote:
> > v7 LPAE multi-platform defconfig is based on v7 multi-platform
> > defconfig and adds LPAE support.
> >
> > The platforms based on Cortex-A7/A12/A15/A17, PJ4B, Krait are also
> > enabled in this defconfig. But Cortex-A5/A8/A9, Scorpion and PJ4 are
> > removed.
> >
> > This defconfig is verified on LS1021A which enables GIANFAR, I2C,
> > WATCHDOG, AUDIO, EDMA and DSPI drivers, etc.
> >
> > The other platforms need to be verified by the platform maintainers
> > too.
> >
> > Signed-off-by: Alison Wang <alison.wang@freescale.com>
> 
> This has been discussed before, and what we have chosen to do is to just
> have a multi_v7_defconfig that all these platforms are enabled on but
> with LPAE off.
> 
> Instead, what we do when building (and on our build/boot builders) is to
> take multi_v7 and provide the snippet that turns on ARM_LPAE at that
> time.
> 
> 
[Alison Wang] Thanks for your reply. I tried to make this multi_v7_lpae_defconfig
according to the discussion with Russell King. He suggested to make a multi_v7_lpae_defconfig
rather than creating a new load of platform specific defconfigs. Attached is his original email.

King, do you have any comment about Olof's reply?


Best Regards,
Alison Wang

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