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ARM: mvebu: Limit the DMA zone when LPAE is selected

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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@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Gregory CLEMENT 2013-04-09 00:52:10 +02:00 committed by Jason Cooper
parent 7ad2a78342
commit 99ff056193
1 changed files with 1 additions and 0 deletions
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arch/arm/mach-mvebu/Kconfig
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@ -14,6 +14,7 @@ config ARCH_MVEBU
select MVEBU_CLK_CPU
select MVEBU_CLK_GATING
select MVEBU_MBUS
select ZONE_DMA if ARM_LPAE
if ARCH_MVEBU