sh: Kill off some superfluous legacy PMB special casing.

The __va()/__pa() offsets and the boot memory offsets are consistent for
all PMB users, so there is no need to special case these for legacy PMB.
Kill the special casing off and depend on CONFIG_PMB across the board.
This also fixes up yet another addressing bug for sh64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/include/asm/page.h

@@ -127,12 +127,7 @@ typedef struct page *pgtable_t;
  * is not visible (it is part of the PMB mapping) and so needs to be
  * added or subtracted as required.
  */
-#if defined(CONFIG_PMB_LEGACY)
-/* phys = virt - PAGE_OFFSET - (__MEMORY_START & 0xe0000000) */
-#define PMB_OFFSET	(PAGE_OFFSET - PXSEG(__MEMORY_START))
-#define __pa(x)	((unsigned long)(x) - PMB_OFFSET)
-#define __va(x)	((void *)((unsigned long)(x) + PMB_OFFSET))
-#elif defined(CONFIG_32BIT)
+#ifdef CONFIG_PMB
 #define __pa(x)	((unsigned long)(x)-PAGE_OFFSET+__MEMORY_START)
 #define __va(x)	((void *)((unsigned long)(x)+PAGE_OFFSET-__MEMORY_START))
 #else

arch/sh/kernel/vmlinux.lds.S

@@ -14,11 +14,10 @@ OUTPUT_ARCH(sh)
 #include <asm/cache.h>
 #include <asm/vmlinux.lds.h>
 
-#if defined(CONFIG_29BIT) || defined(CONFIG_SUPERH64) || \
-    defined(CONFIG_PMB_LEGACY)
- #define MEMORY_OFFSET	__MEMORY_START
+#ifdef CONFIG_PMB
+ #define MEMORY_OFFSET	0
 #else
- #define MEMORY_OFFSET  0
+ #define MEMORY_OFFSET	__MEMORY_START
 #endif
 
 ENTRY(_start)