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authorGreg Ungerer <gerg@uclinux.org>2011-11-15 14:12:01 +1000
committerGreg Ungerer <gerg@uclinux.org>2011-12-30 10:20:31 +1000
commitbfe4375a1a184c2145ef235e782660400b005882 (patch)
tree43f1aedde3bf8c429629c8ef6377e6759decbffe /arch/m68k
parentb852de4e7f7d6f4373901e3a880f6f29a65e7937 (diff)
m68k: define PAGE_OFFSET_RAW for ColdFire CPU with MMU enabled
The ColdFire CPU configurations need PAGE_OFFSET_RAW set to the base of their RAM. It doesn't matter if they are running with the MMU enabled or disabled, it is always set to the base of RAM. We can keep the choices simple here and key of CONFIG_RAMBASE. If it is defined we are on a plaftorm (ColdFire or other non-MMU systems) which have a configurable RAM base, just use it. Reported-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/include/asm/page_offset.h10
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/m68k/include/asm/page_offset.h b/arch/m68k/include/asm/page_offset.h
index 1780152d81d..82626a8f1d0 100644
--- a/arch/m68k/include/asm/page_offset.h
+++ b/arch/m68k/include/asm/page_offset.h
@@ -1,11 +1,9 @@
/* This handles the memory map.. */
-#ifdef CONFIG_MMU
-#ifndef CONFIG_SUN3
-#define PAGE_OFFSET_RAW 0x00000000
-#else
+#if defined(CONFIG_RAMBASE)
+#define PAGE_OFFSET_RAW CONFIG_RAMBASE
+#elif defined(CONFIG_SUN3)
#define PAGE_OFFSET_RAW 0x0E000000
-#endif
#else
-#define PAGE_OFFSET_RAW CONFIG_RAMBASE
+#define PAGE_OFFSET_RAW 0x00000000
#endif