From mboxrd@z Thu Jan  1 00:00:00 1970
From: arnd@arndb.de (Arnd Bergmann)
Date: Tue, 11 Jun 2013 11:53:36 +0200
Subject: About LPAE supporting on EXYNOS5440
In-Reply-To: <109e01ce667e$5becc880$13c65980$%kim@samsung.com>
References: <109e01ce667e$5becc880$13c65980$%kim@samsung.com>
Message-ID: <6690814.Wx0lSuVAQ5@wuerfel>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Tuesday 11 June 2013 17:33:33 Kukjin Kim wrote:
> Hi all,
> 
> The exynos5440 can support LPAE and referece boards, SSDK5440 and SD5v1 have
> over 8GiB memory.
> 
> Current exynos_defconfig selects every EXYNOS SoCs including exynos5440 it
> means supporting LPAE will be selected for other EXYNOS SoCs.
> 
> I'm wondering if seleting LPAE causes some problem for multiplatform. Can we
> support LPAE enabled and disabled platform together with single zImage?

No, that isn't possible. I think we should enable all exynos support in the
regular multi_v7_defconfig and leave LPAE turned off for that, but create
another multi_lpae_defconfig that has all LPAE capable machines turned on.
This is also what I expect the distros to do.

	Arnd