From 99ff056193924005e650ab3f1719995c3ca82646 Mon Sep 17 00:00:00 2001 From: Gregory CLEMENT Date: Tue, 9 Apr 2013 00:52:10 +0200 Subject: [PATCH] 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 Signed-off-by: Jason Cooper --- 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 c3715a5..e11acbb 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -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 -- 2.7.4