diff -Nru linux-2.6.15-omap1/arch/arm/plat-omap/gpio.c linux-2.6.15-omap1-palmtt2/arch/arm/plat-omap/gpio.c
--- linux-2.6.15-omap1/arch/arm/plat-omap/gpio.c	2006-01-10 03:06:49.000000000 +0500
+++ linux-2.6.15-omap1-palmtt2/arch/arm/plat-omap/gpio.c	2006-01-15 13:36:52.000000000 +0500
@@ -767,6 +767,11 @@
 					OMAP24XX_GPIO_LEVELDETECT0) |
 				__raw_readl(bank->base +
 					OMAP24XX_GPIO_LEVELDETECT1);
+		if(cpu_is_omap15xx())
+			if(bank->method == METHOD_MPUIO) {
+				isr &= 0x0000ffff; 
+			}
 
 		/* clear edge sensitive interrupts before handler(s) are
 		called so that we don't miss any interrupt occurred while