Re: [PATCH 2/5] arm: mvebu: Select DMA_BOUNCE when LPAE is selectedin Kconfig

From: Andrew Lunn
Date: Thu Mar 21 2013 - 15:18:36 EST


On Thu, Mar 21, 2013 at 05:26:15PM +0100, Gregory CLEMENT wrote:
> From: Lior Amsalem <alior@xxxxxxxxxxx>
>
> For mvebu IOs are 32 bits and we have 40 bits memory due to LPAE so
> make sure we give 32 bits addresses to the IOs.

Hi Gregory, Lior

I don't really understand what this comment is supposed to mean. I
would of expect DMA and bounce to appear at least....

> Signed-off-by: Lior Amsalem <alior@xxxxxxxxxxx>
> Tested-by: Franklin <flin@xxxxxxxxxxx>
> Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
> ---
> arch/arm/mach-mvebu/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
> index 440b13e..617da94 100644
> --- a/arch/arm/mach-mvebu/Kconfig
> +++ b/arch/arm/mach-mvebu/Kconfig
> @@ -13,6 +13,7 @@ config ARCH_MVEBU
> select MVEBU_CLK_CORE
> select MVEBU_CLK_CPU
> select MVEBU_CLK_GATING
> + select DMABOUNCE if ARM_LPAE
>
> if ARCH_MVEBU
>
> --
> 1.7.9.5
>
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