linux-kernel - RE: [RFC PATCH] ARM: add v7 LPAE multi-platform defconfig

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Date:	Tue, 10 Nov 2015 07:19:07 +0000
From:	Huan Wang <alison.wang@...escale.com>
To:	Olof Johansson <olof@...om.net>,
	Russell King - ARM Linux <linux@....linux.org.uk>
CC:	Arnd Bergmann <arnd@...db.de>,
	"riku.voipio@...aro.org" <riku.voipio@...aro.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Fabio Estevam <festevam@...il.com>,
	Thierry Reding <treding@...dia.com>,
	Ray Jui <rjui@...adcom.com>,
	"alexandre.belloni@...e-electrons.com" 
	<alexandre.belloni@...e-electrons.com>,
	Lee Jones <lee.jones@...aro.org>,
	Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Kukjin Kim <kgene@...nel.org>,
	"Javier Martinez Canillas" <javier@....samsung.com>,
	Krzysztof Kozłowski <k.kozlowski@...sung.com>,
	Rob Herring <rob.herring@...xeda.com>,
	"Jason Cooper" <jason@...edaemon.net>,
	Dinh Nguyen <dinguyen@...era.com>,
	Pawel Moll <pawel.moll@....com>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Andrew Lunn <andrew@...n.ch>, Lior Amsalem <alior@...vell.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Josh Cartwright <josh.cartwright@...com>,
	Soren Brinkmann <soren.brinkmann@...inx.com>,
	Andy Gross <agross@...eaurora.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jin Jason <Jason.Jin@...escale.com>
Subject: RE: [RFC PATCH] ARM: add v7 LPAE multi-platform defconfig

Hi, Olof,
 
> On Mon, Nov 9, 2015 at 6:53 PM, Alison Wang <b18965@...escale.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@...escale.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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