diff --git a/arch/mips/momentum/ocelot_c/prom.c b/arch/mips/momentum/ocelot_c/prom.c
index 4c50a14..1f67728 100644
--- a/arch/mips/momentum/ocelot_c/prom.c
+++ b/arch/mips/momentum/ocelot_c/prom.c
@@ -29,7 +29,7 @@
 struct callvectors* debug_vectors;
 
 extern unsigned long marvell_base;
-extern unsigned long cpu_clock;
+extern unsigned int cpu_clock;
 
 #ifdef CONFIG_MV643XX_ETH
 extern unsigned char prom_mac_addr_base[6];
diff --git a/arch/mips/momentum/ocelot_c/setup.c b/arch/mips/momentum/ocelot_c/setup.c
index 0a3ffa3..7832d4e 100644
--- a/arch/mips/momentum/ocelot_c/setup.c
+++ b/arch/mips/momentum/ocelot_c/setup.c
@@ -70,7 +70,7 @@
 #include "ocelot_c_fpga.h"
 
 unsigned long marvell_base;
-unsigned long cpu_clock;
+unsigned int cpu_clock;
 
 /* These functions are used for rebooting or halting the machine*/
 extern void momenco_ocelot_restart(char *command);