diff --git a/arch/m68k/include/asm/m5206sim.h b/arch/m68k/include/asm/m5206sim.h
index 6972236..e8bae33 100644
--- a/arch/m68k/include/asm/m5206sim.h
+++ b/arch/m68k/include/asm/m5206sim.h
@@ -40,8 +40,8 @@
 #define	MCFSIM_ICR15		0x22		/* Intr Ctrl reg 15 (r/w) */
 #endif
 
-#define MCFSIM_IMR		0x36		/* Interrupt Mask reg (r/w) */
-#define MCFSIM_IPR		0x3a		/* Interrupt Pend reg (r/w) */
+#define	MCFSIM_IMR		(MCF_MBAR + 0x36)	/* Interrupt Mask */
+#define	MCFSIM_IPR		(MCF_MBAR + 0x3a)	/* Interrupt Pending */
 
 #define	MCFSIM_RSR		0x40		/* Reset Status reg (r/w) */
 #define	MCFSIM_SYPCR		0x41		/* System Protection reg (r/w)*/
diff --git a/arch/m68k/include/asm/m5249sim.h b/arch/m68k/include/asm/m5249sim.h
index 7f0c2c3..d0aa7f2 100644
--- a/arch/m68k/include/asm/m5249sim.h
+++ b/arch/m68k/include/asm/m5249sim.h
@@ -32,9 +32,9 @@
 #define	MCFSIM_PAR		0x04		/* Pin Assignment reg (r/w) */
 #define	MCFSIM_IRQPAR		0x06		/* Interrupt Assignment reg (r/w) */
 #define	MCFSIM_MPARK		0x0C		/* BUS Master Control Reg*/
-#define	MCFSIM_IPR		0x40		/* Interrupt Pend reg (r/w) */
-#define	MCFSIM_IMR		0x44		/* Interrupt Mask reg (r/w) */
-#define	MCFSIM_AVR		0x4b		/* Autovector Ctrl reg (r/w) */
+#define	MCFSIM_IPR		(MCF_MBAR + 0x40)	/* Interrupt Pending */
+#define	MCFSIM_IMR		(MCF_MBAR + 0x44)	/* Interrupt Mask */
+#define	MCFSIM_AVR		(MCF_MBAR + 0x4b)	/* Autovector Ctrl */
 #define	MCFSIM_ICR0		0x4c		/* Intr Ctrl reg 0 (r/w) */
 #define	MCFSIM_ICR1		0x4d		/* Intr Ctrl reg 1 (r/w) */
 #define	MCFSIM_ICR2		0x4e		/* Intr Ctrl reg 2 (r/w) */
diff --git a/arch/m68k/include/asm/m525xsim.h b/arch/m68k/include/asm/m525xsim.h
index 6da24f6..0d6d192 100644
--- a/arch/m68k/include/asm/m525xsim.h
+++ b/arch/m68k/include/asm/m525xsim.h
@@ -31,8 +31,8 @@
 #define MCFSIM_SWIVR		0x02		/* SW Watchdog intr reg (r/w) */
 #define MCFSIM_SWSR		0x03		/* SW Watchdog service (r/w) */
 #define MCFSIM_MPARK		0x0C		/* BUS Master Control Reg*/
-#define MCFSIM_IPR		0x40		/* Interrupt Pend reg (r/w) */
-#define MCFSIM_IMR		0x44		/* Interrupt Mask reg (r/w) */
+#define MCFSIM_IPR		(MCF_MBAR + 0x40)	/* Interrupt Pending */
+#define MCFSIM_IMR		(MCF_MBAR + 0x44)	/* Interrupt Mask */
 #define MCFSIM_ICR0		0x4c		/* Intr Ctrl reg 0 (r/w) */
 #define MCFSIM_ICR1		0x4d		/* Intr Ctrl reg 1 (r/w) */
 #define MCFSIM_ICR2		0x4e		/* Intr Ctrl reg 2 (r/w) */
diff --git a/arch/m68k/include/asm/m5272sim.h b/arch/m68k/include/asm/m5272sim.h
index a58f176..378a6d9 100644
--- a/arch/m68k/include/asm/m5272sim.h
+++ b/arch/m68k/include/asm/m5272sim.h
@@ -32,10 +32,10 @@
 #define	MCFSIM_ICR3		0x28		/* Intr Ctrl reg 3 (r/w) */
 #define	MCFSIM_ICR4		0x2c		/* Intr Ctrl reg 4 (r/w) */
 
-#define MCFSIM_ISR		0x30		/* Interrupt Source reg (r/w) */
-#define MCFSIM_PITR		0x34		/* Interrupt Transition (r/w) */
-#define	MCFSIM_PIWR		0x38		/* Interrupt Wakeup reg (r/w) */
-#define	MCFSIM_PIVR		0x3f		/* Interrupt Vector reg (r/w( */
+#define	MCFSIM_ISR		(MCF_MBAR + 0x30)	/* Intr Source */
+#define	MCFSIM_PITR		(MCF_MBAR + 0x34)	/* Intr Transition */
+#define	MCFSIM_PIWR		(MCF_MBAR + 0x38)	/* Intr Wakeup */
+#define	MCFSIM_PIVR		(MCF_MBAR + 0x3f)	/* Intr Vector */
 
 #define	MCFSIM_WRRR		0x280		/* Watchdog reference (r/w) */
 #define	MCFSIM_WIRR		0x284		/* Watchdog interrupt (r/w) */
diff --git a/arch/m68k/include/asm/m5307sim.h b/arch/m68k/include/asm/m5307sim.h
index 3bc3ada..255f7f3 100644
--- a/arch/m68k/include/asm/m5307sim.h
+++ b/arch/m68k/include/asm/m5307sim.h
@@ -31,9 +31,9 @@
 #define	MCFSIM_IRQPAR		0x06		/* Interrupt Assignment reg (r/w) */
 #define	MCFSIM_PLLCR		0x08		/* PLL Control Reg*/
 #define	MCFSIM_MPARK		0x0C		/* BUS Master Control Reg*/
-#define	MCFSIM_IPR		0x40		/* Interrupt Pend reg (r/w) */
-#define	MCFSIM_IMR		0x44		/* Interrupt Mask reg (r/w) */
-#define	MCFSIM_AVR		0x4b		/* Autovector Ctrl reg (r/w) */
+#define	MCFSIM_IPR		(MCF_MBAR + 0x40)	/* Interrupt Pend */
+#define	MCFSIM_IMR		(MCF_MBAR + 0x44)	/* Interrupt Mask */
+#define	MCFSIM_AVR		(MCF_MBAR + 0x4b)	/* Autovector Ctrl */
 #define	MCFSIM_ICR0		0x4c		/* Intr Ctrl reg 0 (r/w) */
 #define	MCFSIM_ICR1		0x4d		/* Intr Ctrl reg 1 (r/w) */
 #define	MCFSIM_ICR2		0x4e		/* Intr Ctrl reg 2 (r/w) */
diff --git a/arch/m68k/include/asm/m5407sim.h b/arch/m68k/include/asm/m5407sim.h
index 79f58dd..afdd563 100644
--- a/arch/m68k/include/asm/m5407sim.h
+++ b/arch/m68k/include/asm/m5407sim.h
@@ -31,9 +31,9 @@
 #define	MCFSIM_IRQPAR		0x06		/* Interrupt Assignment reg (r/w) */
 #define	MCFSIM_PLLCR		0x08		/* PLL Control Reg*/
 #define	MCFSIM_MPARK		0x0C		/* BUS Master Control Reg*/
-#define	MCFSIM_IPR		0x40		/* Interrupt Pend reg (r/w) */
-#define	MCFSIM_IMR		0x44		/* Interrupt Mask reg (r/w) */
-#define	MCFSIM_AVR		0x4b		/* Autovector Ctrl reg (r/w) */
+#define	MCFSIM_IPR		(MCF_MBAR + 0x40)	/* Interrupt Pending */
+#define	MCFSIM_IMR		(MCF_MBAR + 0x44)	/* Interrupt Mask */
+#define	MCFSIM_AVR		(MCF_MBAR + 0x4b)	/* Autovector Ctrl */
 #define	MCFSIM_ICR0		0x4c		/* Intr Ctrl reg 0 (r/w) */
 #define	MCFSIM_ICR1		0x4d		/* Intr Ctrl reg 1 (r/w) */
 #define	MCFSIM_ICR2		0x4e		/* Intr Ctrl reg 2 (r/w) */
diff --git a/arch/m68k/platform/coldfire/intc.c b/arch/m68k/platform/coldfire/intc.c
index 5c0c150..cce2574 100644
--- a/arch/m68k/platform/coldfire/intc.c
+++ b/arch/m68k/platform/coldfire/intc.c
@@ -45,23 +45,23 @@
 void mcf_setimr(int index)
 {
 	u16 imr;
-	imr = __raw_readw(MCF_MBAR + MCFSIM_IMR);
-	__raw_writew(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR);
+	imr = __raw_readw(MCFSIM_IMR);
+	__raw_writew(imr | (0x1 << index), MCFSIM_IMR);
 }
 
 void mcf_clrimr(int index)
 {
 	u16 imr;
-	imr = __raw_readw(MCF_MBAR + MCFSIM_IMR);
-	__raw_writew(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR);
+	imr = __raw_readw(MCFSIM_IMR);
+	__raw_writew(imr & ~(0x1 << index), MCFSIM_IMR);
 }
 
 void mcf_maskimr(unsigned int mask)
 {
 	u16 imr;
-	imr = __raw_readw(MCF_MBAR + MCFSIM_IMR);
+	imr = __raw_readw(MCFSIM_IMR);
 	imr |= mask;
-	__raw_writew(imr, MCF_MBAR + MCFSIM_IMR);
+	__raw_writew(imr, MCFSIM_IMR);
 }
 
 #else
@@ -69,23 +69,23 @@
 void mcf_setimr(int index)
 {
 	u32 imr;
-	imr = __raw_readl(MCF_MBAR + MCFSIM_IMR);
-	__raw_writel(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR);
+	imr = __raw_readl(MCFSIM_IMR);
+	__raw_writel(imr | (0x1 << index), MCFSIM_IMR);
 }
 
 void mcf_clrimr(int index)
 {
 	u32 imr;
-	imr = __raw_readl(MCF_MBAR + MCFSIM_IMR);
-	__raw_writel(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR);
+	imr = __raw_readl(MCFSIM_IMR);
+	__raw_writel(imr & ~(0x1 << index), MCFSIM_IMR);
 }
 
 void mcf_maskimr(unsigned int mask)
 {
 	u32 imr;
-	imr = __raw_readl(MCF_MBAR + MCFSIM_IMR);
+	imr = __raw_readl(MCFSIM_IMR);
 	imr |= mask;
-	__raw_writel(imr, MCF_MBAR + MCFSIM_IMR);
+	__raw_writel(imr, MCFSIM_IMR);
 }
 
 #endif
@@ -104,9 +104,9 @@
 #ifdef MCFSIM_AVR
 	if ((irq >= EIRQ1) && (irq <= EIRQ7)) {
 		u8 avec;
-		avec = __raw_readb(MCF_MBAR + MCFSIM_AVR);
+		avec = __raw_readb(MCFSIM_AVR);
 		avec |= (0x1 << (irq - EIRQ1 + 1));
-		__raw_writeb(avec, MCF_MBAR + MCFSIM_AVR);
+		__raw_writeb(avec, MCFSIM_AVR);
 	}
 #endif
 }