ARM: use phys_addr_t for DMA zone sizes

In order to specify a DMA zone size of 4GB on LPAE systems, the sizes need
to be 64-bit. So make machine_desc.dma_zone_size and arm_dma_zone_size be
phys_addr_t instead of unsigned long.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 441efc491b50..d91b16857971 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -35,7 +35,7 @@ struct machine_desc {
         unsigned int            nr_irqs;        /* number of IRQs */
 
 #ifdef CONFIG_ZONE_DMA
-        unsigned long           dma_zone_size;  /* size of DMA-able area */
+        phys_addr_t             dma_zone_size;  /* size of DMA-able area */
 #endif
 
         unsigned int            video_start;    /* start of video RAM   */