Commit bfe4375a authored Nov 15, 2011 by Greg Ungerer

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>

parent b852de4e

arch/m68k/include/asm/page_offset.h

+4 −6

Original line number	Diff line number	Diff line
		/* 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

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