diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 684d400..6274f92 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -310,6 +310,14 @@
 
 
 #if defined(CONFIG_WATCHDOG)
+#define WATCHDOG_MASK (TCR_WP(63) | TCR_WRC(3) | TCR_WIE)
+void
+init_85xx_watchdog(void)
+{
+	mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WATCHDOG_MASK) |
+	      TCR_WP(CONFIG_WATCHDOG_PRESC) | TCR_WRC(CONFIG_WATCHDOG_RC));
+}
+
 void
 reset_85xx_watchdog(void)
 {
diff --git a/include/watchdog.h b/include/watchdog.h
index aacacb9..bd0a8d6 100644
--- a/include/watchdog.h
+++ b/include/watchdog.h
@@ -95,4 +95,8 @@
 #if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__)
 	void hw_watchdog_init(void);
 #endif
+
+#if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__)
+	void init_85xx_watchdog(void);
+#endif
 #endif /* _WATCHDOG_H_ */