ARM: 6673/1: LPAE: use phys_addr_t instead of unsigned long for start of membanks

The unsigned long datatype is not sufficient for mapping physical addresses
>= 4GB.

This patch ensures that the phys_addr_t datatype is used to represent
the start address of a membank, which may reside above the 4GB boundary.

Acked-by: Catalin Marinas <[e-mail]>
Signed-off-by: Will Deacon <[e-mail]>
Signed-off-by: Russell King <[e-mail]>

arch/arm/include/asm/setup.h

···
 #endif
 
 struct membank {
-	unsigned long start;
+	phys_addr_t start;
 	unsigned long size;
 	unsigned int highmem;
 };

arch/arm/kernel/setup.c

···
 	return list;
 }
 
-static int __init arm_add_memory(unsigned long start, unsigned long size)
+static int __init arm_add_memory(phys_addr_t start, unsigned long size)
 {
 	struct membank *bank = &meminfo.bank[meminfo.nr_banks];
 
···
 static int __init early_mem(char *p)
 {
 	static int usermem __initdata = 0;
-	unsigned long size, start;
+	unsigned long size;
+	phys_addr_t start;
 	char *endp;
 
 	/*