powerpc: Fix build issue with CONFIG_RELOCATABLE=y

There are two issues when we enable CONFIG_RELOCATABLE.  The first is due
to the fact that phys_addr_t is now defined in linux/types.h.  The second
is due to the fact that the DMA code changes expose memstart_addr to
prom_init.c

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/page.h

@@ -12,7 +12,9 @@
 
 #include <asm/asm-compat.h>
 #include <asm/kdump.h>
-#include <asm/types.h>
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+#endif
 
 /*
  * On PPC32 page size is 4K. For PPC64 we support either 4K or 64K software
@@ -73,6 +75,7 @@
 
 #if defined(CONFIG_RELOCATABLE)
 #ifndef __ASSEMBLY__
+
 extern phys_addr_t memstart_addr;
 extern phys_addr_t kernstart_addr;
 #endif

arch/powerpc/kernel/prom_init_check.sh

@@ -20,7 +20,7 @@ WHITELIST="add_reloc_offset __bss_start __bss_stop copy_and_flush
 _end enter_prom memcpy memset reloc_offset __secondary_hold
 __secondary_hold_acknowledge __secondary_hold_spinloop __start
 strcmp strcpy strlcpy strlen strncmp strstr logo_linux_clut224
-reloc_got2 kernstart_addr"
+reloc_got2 kernstart_addr memstart_addr"
 
 NM="$1"
 OBJ="$2"