[ARM] 5034/1: fix arm{925,926,940,946} dma_flush_range() in WT mode

The CPU's dma_flush_range() operation needs to clean+invalidate the
given memory area if the cache is in writeback mode, or do just the
invalidate part if the cache is in writethrough mode, but the current
proc-arm{925,926,940,946} (incorrectly) do a cache clean in the
latter case.  This patch fixes that.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index 44ead902bd54..1a3d63df8e90 100644
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -222,7 +222,7 @@ ENTRY(arm940_dma_flush_range)
 #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
         mcr     p15, 0, r3, c7, c14, 2          @ clean/flush D entry
 #else
-        mcr     p15, 0, r3, c7, c10, 2          @ clean D entry
+        mcr     p15, 0, r3, c7, c6, 2           @ invalidate D entry
 #endif
         subs    r3, r3, #1 << 26
         bcs     2b                              @ entries 63 to 0