diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
index 28b5285446e838d6f0b55fbc2fdaa8af7d7bb919..93c4ef9f00673358a0b8169b25fafd4b356b0df6 100644
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -74,7 +74,7 @@ orion_clkevt_next_event(unsigned long delta, struct clock_event_device *dev)
 	/*
 	 * Clear and enable clockevent timer interrupt.
 	 */
-	writel(~BRIDGE_INT_TIMER1, BRIDGE_CAUSE);
+	writel(BRIDGE_INT_TIMER1_CLR, BRIDGE_CAUSE);
 
 	u = readl(BRIDGE_MASK);
 	u |= BRIDGE_INT_TIMER1;
@@ -138,7 +138,7 @@ orion_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 		/*
 		 * ACK pending timer interrupt.
 		 */
-		writel(~BRIDGE_INT_TIMER1, BRIDGE_CAUSE);
+		writel(BRIDGE_INT_TIMER1_CLR, BRIDGE_CAUSE);
 
 	}
 	local_irq_restore(flags);
@@ -159,7 +159,7 @@ static irqreturn_t orion_timer_interrupt(int irq, void *dev_id)
 	/*
 	 * ACK timer interrupt and call event handler.
 	 */
-	writel(~BRIDGE_INT_TIMER1, BRIDGE_CAUSE);
+	writel(BRIDGE_INT_TIMER1_CLR, BRIDGE_CAUSE);
 	orion_clkevt.event_handler(&orion_clkevt);
 
 	return IRQ_HANDLED;
diff --git a/include/asm-arm/arch-orion5x/orion5x.h b/include/asm-arm/arch-orion5x/orion5x.h
index 20f7b406a798d716e721f4cde8d597e20b1b466d..10257f5c5e9ecb1151674eb7eecc5b0541e16a40 100644
--- a/include/asm-arm/arch-orion5x/orion5x.h
+++ b/include/asm-arm/arch-orion5x/orion5x.h
@@ -154,6 +154,7 @@
 #define BRIDGE_MASK		ORION5X_BRIDGE_REG(0x114)
 #define  BRIDGE_INT_TIMER0	0x0002
 #define  BRIDGE_INT_TIMER1	0x0004
+#define  BRIDGE_INT_TIMER1_CLR	(~0x0004)
 #define MAIN_IRQ_CAUSE		ORION5X_BRIDGE_REG(0x200)
 #define MAIN_IRQ_MASK		ORION5X_BRIDGE_REG(0x204)