[ARM] Move PHYS_TO_NID() to asm/memory.h

When CONFIG_DISCONTIGMEM=n, we define PHYS_TO_NID(x) to zero in each
architecture specific file.  This cset moves it into the generic
ARM code.  

include/asm-arm/arch-adifcc/memory.h

@@ -52,6 +52,4 @@
 #define __virt_to_bus(x)	 __virt_to_phys(x)
 #define __bus_to_virt(x)	 __phys_to_virt(x)
 
-#define	PHYS_TO_NID(x)		0
-
 #endif

include/asm-arm/arch-anakin/memory.h

@@ -31,6 +31,4 @@
 #define __virt_to_bus__is_a_macro
 #define __bus_to_virt__is_a_macro
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-arc/memory.h

@@ -50,6 +50,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x)	(x)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-cl7500/memory.h

@@ -46,6 +46,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x) __phys_to_virt(x)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-clps711x/memory.h

@@ -90,8 +90,6 @@
  * memory bank.  For those systems, simply undefine CONFIG_DISCONTIGMEM.
  */
 
-#ifdef CONFIG_ARCH_EDB7211
-
 #ifdef CONFIG_DISCONTIGMEM
 /*
  * Because of the wide memory address space between physical RAM banks on the 
@@ -155,11 +153,5 @@
 
 #endif /* CONFIG_DISCONTIGMEM */
 
-#endif	/* CONFIG_ARCH_EDB7211 */
-
-#ifndef PFN_TO_NID
-#define PFN_TO_NID(pfn)		(0)
-#endif
-
 #endif
 

include/asm-arm/arch-ebsa110/memory.h

@@ -48,6 +48,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x)	(x)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-ebsa285/memory.h

@@ -80,6 +80,4 @@ extern unsigned long __bus_to_virt(unsigned long);
 #define __phys_to_virt__is_a_macro
 #define __phys_to_virt(ppage) ((unsigned long)(ppage) + PAGE_OFFSET)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-epxa10db/memory.h

@@ -38,8 +38,6 @@
 #define PAGE_OFFSET	(0xc0000000UL)
 #define PHYS_OFFSET	(0x00000000UL)
 
-#define PHYS_TO_NID(addr)    (0)
-
 /*
  * On epxa10, the dram is contiguous
  */

include/asm-arm/arch-integrator/memory.h

@@ -58,6 +58,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x)	(x - INTEGRATOR_HDR0_SDRAM_BASE + PAGE_OFFSET)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-iop310/memory.h

@@ -49,8 +49,6 @@
 #define __virt_to_bus(x)	(((__virt_to_phys(x)) & ~(*IOP310_SIATVR)) | ((*IOP310_SIABAR) & 0xfffffff0))
 #define __bus_to_virt(x)    (__phys_to_virt(((x) & ~(*IOP310_SIALR)) | ( *IOP310_SIATVR)))
 
-#define PHYS_TO_NID(x)		0
-
 /* boot mem allocate global pointer for MU circular queues QBAR */
 #ifdef CONFIG_IOP310_MU
 extern void *mu_mem;

include/asm-arm/arch-l7200/memory.h

@@ -47,6 +47,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x) __phys_to_virt(x)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-nexuspci/memory.h

@@ -43,6 +43,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x) ((unsigned long)(x) + PAGE_OFFSET - BUS_OFFSET)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-pxa/memory.h

@@ -34,7 +34,6 @@
  * Physical DRAM offset.
  */
 #define PHYS_OFFSET	(0xa0000000UL)
-#define PHYS_TO_NID(addr)	(0)
 
 /*
  * physical vs virtual ram conversion

include/asm-arm/arch-rpc/memory.h

@@ -50,6 +50,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x) __phys_to_virt(x)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-shark/memory.h

@@ -40,6 +40,4 @@
 
 #define isa_virt_to_bus		virt_to_bus
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/arch-tbox/memory.h

@@ -41,6 +41,4 @@
 #define __bus_to_virt__is_a_macro
 #define __bus_to_virt(x)	__phys_to_virt(x)
 
-#define PHYS_TO_NID(addr)	(0)
-
 #endif

include/asm-arm/memory.h

@@ -74,6 +74,8 @@ static inline void *phys_to_virt(unsigned long x)
 #define virt_to_page(kaddr)	(pfn_to_page(__pa(kaddr) >> PAGE_SHIFT))
 #define virt_addr_valid(kaddr)	((kaddr) >= PAGE_OFFSET && (kaddr) < (unsigned long)high_memory)
 
+#define PHYS_TO_NID(addr)	(0)
+
 #else
 /*
  * This is more complex.  We have a set of mem_map arrays spread