Data types defined for 64 bit physical address
Data types and I/O functions have been defined for
64 bit physical addresses in arm.
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index bfbe0a0..75773bd 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -46,7 +46,7 @@
static inline void *
map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
{
- return (void *)paddr;
+ return (void *)((unsigned long)paddr);
}
/*
@@ -59,7 +59,7 @@
static inline phys_addr_t virt_to_phys(void * vaddr)
{
- return (phys_addr_t)(vaddr);
+ return (phys_addr_t)((unsigned long)vaddr);
}
/*
diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h
index ee77c41..388058e 100644
--- a/arch/arm/include/asm/types.h
+++ b/arch/arm/include/asm/types.h
@@ -45,12 +45,16 @@
#define BITS_PER_LONG 32
#endif /* CONFIG_ARM64 */
-/* Dma addresses are 32-bits wide. */
-
+#ifdef CONFIG_PHYS_64BIT
+typedef unsigned long long dma_addr_t;
+typedef unsigned long long phys_addr_t;
+typedef unsigned long long phys_size_t;
+#else
+/* DMA addresses are 32-bits wide */
typedef u32 dma_addr_t;
-
typedef unsigned long phys_addr_t;
typedef unsigned long phys_size_t;
+#endif
#endif /* __KERNEL__ */