diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h
index 1aab6295d6..3cc0e5fa34 100644
--- a/arch/arm/include/asm/global_data.h
+++ b/arch/arm/include/asm/global_data.h
@@ -32,8 +32,8 @@ struct arch_global_data {
 #endif
 	/* "static data" needed by most of timer.c on ARM platforms */
 	unsigned long timer_rate_hz;
-	unsigned long tbu;
-	unsigned long tbl;
+	unsigned int tbu;
+	unsigned int tbl;
 	unsigned long lastinc;
 	unsigned long long timer_reset_value;
 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))