diff --git a/sys/arm/xilinx/zy7_gpio.c b/sys/arm/xilinx/zy7_gpio.c
index b9f6b3c04d99..8f9a1a05af9b 100644
--- a/sys/arm/xilinx/zy7_gpio.c
+++ b/sys/arm/xilinx/zy7_gpio.c
@@ -298,24 +298,6 @@ zy7_gpio_probe(device_t dev)
 	return (0);
 }
 
-static void
-zy7_gpio_hw_reset(struct zy7_gpio_softc *sc)
-{
-	int i;
-
-	for (i = 0; i < NUMBANKS; i++) {
-		WR4(sc, ZY7_GPIO_DATA(i), 0);
-		WR4(sc, ZY7_GPIO_DIRM(i), 0);
-		WR4(sc, ZY7_GPIO_OEN(i), 0);
-		WR4(sc, ZY7_GPIO_INT_DIS(i), 0xffffffff);
-		WR4(sc, ZY7_GPIO_INT_POLARITY(i), 0);
-		WR4(sc, ZY7_GPIO_INT_TYPE(i),
-		    i == 1 ? 0x003fffff : 0xffffffff);
-		WR4(sc, ZY7_GPIO_INT_ANY(i), 0);
-		WR4(sc, ZY7_GPIO_INT_STAT(i), 0xffffffff);
-	}
-}
-
 static int zy7_gpio_detach(device_t dev);
 
 static int
@@ -338,9 +320,6 @@ zy7_gpio_attach(device_t dev)
 		return (ENOMEM);
 	}
 
-	/* Completely reset. */
-	zy7_gpio_hw_reset(sc);
-
 	sc->busdev = gpiobus_attach_bus(dev);
 	if (sc->busdev == NULL) {
 		zy7_gpio_detach(dev);