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-sa1100/include/mach/memory.h b/arch/arm/mach-sa1100/include/mach/memory.h
index a44da6a2916c..090b82982abb 100644
--- a/arch/arm/mach-sa1100/include/mach/memory.h
+++ b/arch/arm/mach-sa1100/include/mach/memory.h
@@ -22,8 +22,7 @@ void sa1111_adjust_zones(unsigned long *size, unsigned long *holes);
 #define arch_adjust_zones(size, holes) \
         sa1111_adjust_zones(size, holes)
 
-#define ISA_DMA_THRESHOLD       (PHYS_OFFSET + SZ_1M - 1)
-#define MAX_DMA_ADDRESS         (PAGE_OFFSET + SZ_1M)
+#define ARM_DMA_ZONE_SIZE       SZ_1M
 
 #endif
 #endif