[PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected

Jason Cooper jason at lakedaemon.net
Fri Apr 12 04:07:36 EST 2013


On Tue, Apr 09, 2013 at 12:52:10AM +0200, Gregory CLEMENT wrote:
> When LPAE is activated on Armada XP, all registers and IOs are still
> 32bit, the 40bit extension is on the CPU to DRAM path (windows) only.
> That means that all the DMA transfer are restricted to the low 32 bits
> address space. This is limitation is achieved by selecting ZONE_DMA.
> 
> Signed-off-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
> ---
>  arch/arm/mach-mvebu/Kconfig |    1 +
>  1 file changed, 1 insertion(+)

Applied to mvebu/soc

thx,

Jason.


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