diff --git a/arch/m68k/include/asm/nettel.h b/arch/m68k/include/asm/nettel.h
index 4dec2d9fb994..2a7a7667d807 100644
--- a/arch/m68k/include/asm/nettel.h
+++ b/arch/m68k/include/asm/nettel.h
@@ -21,6 +21,7 @@
 #ifdef CONFIG_COLDFIRE
 #include <asm/coldfire.h>
 #include <asm/mcfsim.h>
+#include <asm/io.h>
 #endif
 
 /*---------------------------------------------------------------------------*/
@@ -86,16 +87,12 @@ static __inline__ void mcf_setppdata(unsigned int mask, unsigned int bits)
  */
 static __inline__ unsigned int mcf_getppdata(void)
 {
-	volatile unsigned short *pp;
-	pp = (volatile unsigned short *) (MCF_MBAR + MCFSIM_PBDAT);
-	return((unsigned int) *pp);
+	return readw(MCFSIM_PBDAT);
 }
 
 static __inline__ void mcf_setppdata(unsigned int mask, unsigned int bits)
 {
-	volatile unsigned short *pp;
-	pp = (volatile unsigned short *) (MCF_MBAR + MCFSIM_PBDAT);
-	*pp = (*pp & ~mask) | bits;
+	write((readw(MCFSIM_PBDAT) & ~mask) | bits, MCFSIM_PBDAT);
 }
 #endif
 
diff --git a/arch/m68k/platform/coldfire/m5272.c b/arch/m68k/platform/coldfire/m5272.c
index eae59f67bc1c..45b246d052ef 100644
--- a/arch/m68k/platform/coldfire/m5272.c
+++ b/arch/m68k/platform/coldfire/m5272.c
@@ -35,13 +35,13 @@ static void __init m5272_uarts_init(void)
 	u32 v;
 
 	/* Enable the output lines for the serial ports */
-	v = readl(MCF_MBAR + MCFSIM_PBCNT);
+	v = readl(MCFSIM_PBCNT);
 	v = (v & ~0x000000ff) | 0x00000055;
-	writel(v, MCF_MBAR + MCFSIM_PBCNT);
+	writel(v, MCFSIM_PBCNT);
 
-	v = readl(MCF_MBAR + MCFSIM_PDCNT);
+	v = readl(MCFSIM_PDCNT);
 	v = (v & ~0x000003fc) | 0x000002a8;
-	writel(v, MCF_MBAR + MCFSIM_PDCNT);
+	writel(v, MCFSIM_PDCNT);
 }
 
 /***************************************************************************/