diff --git a/cpu/at32ap/portmux-pio.c b/cpu/at32ap/portmux-pio.c
new file mode 100644
index 0000000..a29f94e
--- /dev/null
+++ b/cpu/at32ap/portmux-pio.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+
+#include <asm/io.h>
+#include <asm/arch/memory-map.h>
+#include <asm/arch/gpio.h>
+
+void portmux_select_peripheral(void *port, unsigned long pin_mask,
+		enum portmux_function func, unsigned long flags)
+{
+	if (flags & PORTMUX_PULL_UP)
+		pio_writel(port, PUER, pin_mask);
+	else
+		pio_writel(port, PUDR, pin_mask);
+
+	switch (func) {
+	case PORTMUX_FUNC_A:
+		pio_writel(port, ASR, pin_mask);
+		break;
+	case PORTMUX_FUNC_B:
+		pio_writel(port, BSR, pin_mask);
+		break;
+	}
+
+	pio_writel(port, PDR, pin_mask);
+}
+
+void portmux_select_gpio(void *port, unsigned long pin_mask,
+		unsigned long flags)
+{
+	if (flags & PORTMUX_PULL_UP)
+		pio_writel(port, PUER, pin_mask);
+	else
+		pio_writel(port, PUDR, pin_mask);
+
+	if (flags & PORTMUX_OPEN_DRAIN)
+		pio_writel(port, MDER, pin_mask);
+	else
+		pio_writel(port, MDDR, pin_mask);
+
+	if (flags & PORTMUX_DIR_OUTPUT) {
+		if (flags & PORTMUX_INIT_HIGH)
+			pio_writel(port, SODR, pin_mask);
+		else
+			pio_writel(port, CODR, pin_mask);
+		pio_writel(port, OER, pin_mask);
+	} else {
+		pio_writel(port, ODR, pin_mask);
+	}
+
+	pio_writel(port, PER, pin_mask);
+}
+
+void pio_set_output_value(unsigned int pin, int value)
+{
+	void *port = pio_pin_to_port(pin);
+
+	if (!port)
+		panic("Invalid GPIO pin %u\n", pin);
+
+	__pio_set_output_value(port, pin & 0x1f, value);
+}
+
+int pio_get_input_value(unsigned int pin)
+{
+	void *port = pio_pin_to_port(pin);
+
+	if (!port)
+		panic("Invalid GPIO pin %u\n", pin);
+
+	return __pio_get_input_value(port, pin & 0x1f);
+}