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authorGregory CLEMENT <gregory.clement@free-electrons.com>2013-04-09 00:52:10 +0200
committerJason Cooper <jason@lakedaemon.net>2013-04-15 14:06:53 +0000
commit99ff056193924005e650ab3f1719995c3ca82646 (patch)
tree0466d4a00681f67befd6291da53940cc72986444 /arch/arm/mach-mvebu/armada-370-xp.h
parent7ad2a78342a6465827226ac00fca6a384cd23f82 (diff)
downloadlinux-linaro-stable-99ff056193924005e650ab3f1719995c3ca82646.tar.gz
ARM: mvebu: Limit the DMA zone when LPAE is selected
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>
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