diff --git a/at91_init1.c b/at91_init1.c
index fe45736..7011989 100644
--- a/at91_init1.c
+++ b/at91_init1.c
@@ -66,13 +66,14 @@ void at91_init1(void)
 	AT91S_AIC *aic = AT91C_BASE_AIC;
 	aic->AIC_DCR = AT91C_AIC_DCR_PROT;
 
-	/* end-of-interrupt signal */
-	aic->AIC_EOICR = ~0;
-
 	/* Disable & clear all Interrupts */
 	aic->AIC_IDCR = ~0;
 	aic->AIC_ICCR = ~0;
 
+	/* end-of-interrupt signal */
+	while (aic->AIC_ISR != 0x00)
+		aic->AIC_EOICR = ~0;
+
 	/* default Interrupt Handlers just return */
 	aic->AIC_FVR = (uint32_t)empty_isr;
 	aic->AIC_IVR = (uint32_t)empty_isr;