diff --git a/arch/arm/mach-rockchip/rk_fiq_debugger.c b/arch/arm/mach-rockchip/rk_fiq_debugger.c
index 71b29056eaa2..0d35df02c540 100644
--- a/arch/arm/mach-rockchip/rk_fiq_debugger.c
+++ b/arch/arm/mach-rockchip/rk_fiq_debugger.c
@@ -48,13 +48,13 @@ struct rk_fiq_debugger {
 static inline void rk_fiq_write(struct rk_fiq_debugger *t,
 	unsigned int val, unsigned int off)
 {
-	__raw_writeb(val, t->debug_port_base + off * 4);
+	__raw_writel(val, t->debug_port_base + off * 4);
 }
 
 static inline unsigned int rk_fiq_read(struct rk_fiq_debugger *t,
 	unsigned int off)
 {
-	return __raw_readb(t->debug_port_base + off * 4);
+	return __raw_readl(t->debug_port_base + off * 4);
 }
 
 static inline unsigned int rk_fiq_read_lsr(struct rk_fiq_debugger *t)