[PATCH 2/5] arm: mvebu: Select DMA_BOUNCE when LPAE is selected in Kconfig

Rob Herring robherring2 at gmail.com
Fri Mar 22 05:19:43 EST 2013


On 03/21/2013 11:26 AM, Gregory CLEMENT wrote:
> From: Lior Amsalem <alior at marvell.com>
> 
> 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.
> 
> Signed-off-by: Lior Amsalem <alior at marvell.com>
> Tested-by: Franklin <flin at marvell.com>
> Signed-off-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
> ---
>  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

This alone is not enough to use bounce buffers. Am I missing something?

Rob

>  
>  if ARCH_MVEBU
>  
> 



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