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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-01-18 13:30:33 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-02 21:23:32 +0000
commit3bc28c8edc4f5f78d9ec23fb0f20df29b7b3a072 (patch)
treebb252f487da02437c014023d258048a580d7c730 /arch/arm/mm/Kconfig
parentfbb4ddacb6b70b3178fcb7e3debc5180e6b6cd2f (diff)
ARM: v6k: DMA_CACHE_RWFO isn't appropriate for non-v6k CPUs
Limit DMA_CACHE_RWFO to only v6k SMP CPUs - V6 CPUs aren't SMP capable, so the read/write for ownership work-around doesn't apply to them. Acked-by: Will Deacon <will.deacon@arm.com> Tested-by: Sourav Poddar <sourav.poddar@ti.com> Tested-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/Kconfig')
-rw-r--r--arch/arm/mm/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 843bc8c74b8..808b8329b13 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -775,7 +775,7 @@ config NEEDS_SYSCALL_FOR_CMPXCHG
config DMA_CACHE_RWFO
bool "Enable read/write for ownership DMA cache maintenance"
- depends on (CPU_V6 || CPU_V6K) && SMP
+ depends on CPU_V6K && SMP
default y
help
The Snoop Control Unit on ARM11MPCore does not detect the