ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS

The values of ISA_DMA_THRESHOLD and MAX_DMA_ADDRESS are related; one is
the physical/bus address, the other is the virtual address.  Both need
to be kept in step, so rather than having platforms define both, allow
them to define a single macro which sets both of these macros
appropraitely.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/arm/mach-ixp4xx/include/mach/memory.h b/arch/arm/mach-ixp4xx/include/mach/memory.h
index 6d388c9d0e20..a5c26f8d3125 100644
--- a/arch/arm/mach-ixp4xx/include/mach/memory.h
+++ b/arch/arm/mach-ixp4xx/include/mach/memory.h
@@ -21,8 +21,7 @@ void ixp4xx_adjust_zones(unsigned long *size, unsigned long *holes);
 #define arch_adjust_zones(size, holes) \
         ixp4xx_adjust_zones(size, holes)
 
-#define ISA_DMA_THRESHOLD (SZ_64M - 1)
-#define MAX_DMA_ADDRESS         (PAGE_OFFSET + SZ_64M)
+#define ARM_DMA_ZONE_SIZE       SZ_64M
 
 #endif