diff --git a/arch/powerpc/cpu/ppc4xx/cpu_init.c b/arch/powerpc/cpu/ppc4xx/cpu_init.c
index 2a727b1df38b94b96a27ba70dddd02a886c3a6a9..bf208adfe6f5cb3351fd7a6f8f56849e2ddcb305 100644
--- a/arch/powerpc/cpu/ppc4xx/cpu_init.c
+++ b/arch/powerpc/cpu/ppc4xx/cpu_init.c
@@ -342,7 +342,7 @@ cpu_init_f (void)
 #endif
 
 #if defined(CONFIG_WATCHDOG)
-	val = mfspr(tcr);
+	val = mfspr(SPRN_TCR);
 #if defined(CONFIG_440EP) || defined(CONFIG_440GR)
 	val |= 0xb8000000;      /* generate system reset after 1.34 seconds */
 #elif defined(CONFIG_440EPX)
@@ -354,11 +354,11 @@ cpu_init_f (void)
 	val &= ~0x30000000;			/* clear WRC bits */
 	val |= CONFIG_SYS_4xx_RESET_TYPE << 28;	/* set board specific WRC type */
 #endif
-	mtspr(tcr, val);
+	mtspr(SPRN_TCR, val);
 
-	val = mfspr(tsr);
+	val = mfspr(SPRN_TSR);
 	val |= 0x80000000;      /* enable watchdog timer */
-	mtspr(tsr, val);
+	mtspr(SPRN_TSR, val);
 
 	reset_4xx_watchdog();
 #endif /* CONFIG_WATCHDOG */
diff --git a/arch/powerpc/cpu/ppc4xx/interrupts.c b/arch/powerpc/cpu/ppc4xx/interrupts.c
index c2d49739837c94c2673ee56346289d872deb458f..d0bca92f990633b6dc5736928a7475cf680de70a 100644
--- a/arch/powerpc/cpu/ppc4xx/interrupts.c
+++ b/arch/powerpc/cpu/ppc4xx/interrupts.c
@@ -67,13 +67,6 @@ static __inline__ void set_pit(unsigned long val)
 	asm volatile("mtpit %0" : : "r" (val));
 }
 
-
-static __inline__ void set_tcr(unsigned long val)
-{
-	asm volatile("mttcr %0" : : "r" (val));
-}
-
-
 static __inline__ void set_evpr(unsigned long val)
 {
 	asm volatile("mtevpr %0" : : "r" (val));
diff --git a/arch/powerpc/cpu/ppc4xx/traps.c b/arch/powerpc/cpu/ppc4xx/traps.c
index b5562ad9788aa379c8c970af29a56918938d6b66..9baa7a16d1be2d6e29f3e865a79755b6ed722665 100644
--- a/arch/powerpc/cpu/ppc4xx/traps.c
+++ b/arch/powerpc/cpu/ppc4xx/traps.c
@@ -46,15 +46,6 @@ extern unsigned long search_exception_table(unsigned long);
  */
 #define END_OF_MEM	(gd->bd->bi_memstart + gd->bd->bi_memsize)
 
-static __inline__ void set_tsr(unsigned long val)
-{
-#if defined(CONFIG_440)
-	asm volatile("mtspr 0x150, %0" : : "r" (val));
-#else
-	asm volatile("mttsr %0" : : "r" (val));
-#endif
-}
-
 static __inline__ unsigned long get_esr(void)
 {
 	unsigned long val;
@@ -364,7 +355,7 @@ DecrementerPITException(struct pt_regs *regs)
 	/*
 	 * Reset PIT interrupt
 	 */
-	set_tsr(0x08000000);
+	mtspr(SPRN_TSR, 0x08000000);
 
 	/*
 	 * Call timer_interrupt routine in interrupts.c