diff --git a/drivers/pinmux/Kconfig b/drivers/pinmux/Kconfig
index 943644320e4..c2b489fe12c 100644
--- a/drivers/pinmux/Kconfig
+++ b/drivers/pinmux/Kconfig
@@ -25,6 +25,8 @@ menuconfig PINMUX
 
 if PINMUX
 
+source "drivers/pinmux/dev/Kconfig"
+
 config PINMUX_BASE
         hex "Base Address"
 	depends on PINMUX
diff --git a/drivers/pinmux/Makefile b/drivers/pinmux/Makefile
index 3e3bf5f8482..a40d160efca 100644
--- a/drivers/pinmux/Makefile
+++ b/drivers/pinmux/Makefile
@@ -1,5 +1,6 @@
 ccflags-y +=-I$(srctree)/drivers
 
+# Board initialization
 obj-$(CONFIG_PINMUX_K64) += frdm_k64f/pinmux_k64.o frdm_k64f/pinmux_board_frdm_k64f.o
 obj-$(CONFIG_PINMUX_STM32) += pinmux_stm32.o
 obj-$(CONFIG_BOARD_ARDUINO_101) += quark_mcu/pinmux_board_arduino_101.o
@@ -7,3 +8,7 @@ obj-$(CONFIG_BOARD_ARDUINO_DUE) += sam3x/pinmux_board_arduino_due.o
 obj-$(CONFIG_BOARD_GALILEO) += galileo/pinmux_board_galileo.o galileo/pinmux_galileo.o
 obj-$(CONFIG_BOARD_QUARK_D2000_CRB) += quark_mcu/pinmux_board_quark_d2000_crb.o
 obj-$(CONFIG_BOARD_QUARK_SE_DEVBOARD) += quark_mcu/pinmux_board_quark_se_dev.o
+
+# "runtime" pinmux
+obj-$(CONFIG_PINMUX_DEV) += dev/
+
diff --git a/drivers/pinmux/dev/Kconfig b/drivers/pinmux/dev/Kconfig
new file mode 100644
index 00000000000..29d6c38392d
--- /dev/null
+++ b/drivers/pinmux/dev/Kconfig
@@ -0,0 +1,41 @@
+# Kconfig - Pinmux Dev configuration options
+
+#
+# Copyright (c) 2016 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+config PINMUX_DEV
+       bool "Configure pinmux for early board testing"
+       depends on PINMUX
+       default n
+       help
+       Enables the use of the pinmux_set and pinmux_get functions for early
+       prototyping on new hardware.  WARNING: When using these options, it
+       is possible to permanently damage the hardware.
+
+config PINMUX_DEV_NAME
+       string "Configure pinmux for early board testing"
+       depends on PINMUX
+       default "pmux_dev"
+       help
+       The name of the pinmux dev driver.
+
+config PINMUX_DEV_ATMEL_SAM3X
+       bool "Enable pinmux dev driver for Atmel SAM3X boards"
+       depends on PINMUX_DEV && SOC_ATMEL_SAM3X8E
+       help
+       Enables the pinmux dev driver for boards based on the
+       Atmel SAM3X family of microcontrollers.
+       default n
diff --git a/drivers/pinmux/dev/Makefile b/drivers/pinmux/dev/Makefile
new file mode 100644
index 00000000000..035fa38c9bd
--- /dev/null
+++ b/drivers/pinmux/dev/Makefile
@@ -0,0 +1,3 @@
+ccflags-$(CONFIG_PINMUX_DEV) +=-I$(srctree)/drivers
+
+obj-$(CONFIG_PINMUX_DEV_ATMEL_SAM3X) += pinmux_dev_atmel_sam3x.o
diff --git a/drivers/pinmux/dev/pinmux_dev_atmel_sam3x.c b/drivers/pinmux/dev/pinmux_dev_atmel_sam3x.c
new file mode 100644
index 00000000000..082ba2dff94
--- /dev/null
+++ b/drivers/pinmux/dev/pinmux_dev_atmel_sam3x.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <nanokernel.h>
+#include <board.h>
+
+#include <device.h>
+#include <init.h>
+#include <pinmux.h>
+#include <soc.h>
+#include <misc/util.h>
+
+static volatile struct __pio *_get_port(uint32_t pin)
+{
+	uint32_t port_num = pin / 32;
+
+	switch (port_num) {
+	case 0:
+		return __PIOA;
+	case 1:
+		return __PIOB;
+	case 2:
+		return __PIOC;
+	case 3:
+		return __PIOD;
+	default:
+		/* return null if pin is outside range */
+		return NULL;
+	}
+}
+
+static int pinmux_set(struct device *dev, uint32_t pin, uint32_t func)
+{
+	volatile struct __pio *port = _get_port(pin);
+	uint32_t tmp;
+
+	ARG_UNUSED(dev);
+
+	if (!port) {
+		return -EINVAL;
+	}
+
+	tmp = port->absr;
+	if (func) {
+		tmp |= (1 << (pin % 32));
+	} else {
+		tmp &= ~(1 << (pin % 32));
+	}
+	port->absr = tmp;
+
+	return 0;
+}
+
+static int pinmux_get(struct device *dev, uint32_t pin, uint32_t *func)
+{
+	volatile struct __pio *port = _get_port(pin);
+
+	ARG_UNUSED(dev);
+
+	if (!port) {
+		return -EINVAL;
+	}
+
+	*func = (port->absr & (1 << (pin % 32))) ? 1 : 0;
+
+	return 0;
+}
+
+static int pinmux_pullup(struct device *dev, uint32_t pin, uint8_t func)
+{
+	volatile struct __pio *port = _get_port(pin);
+
+	ARG_UNUSED(dev);
+
+	if (!port) {
+		return -EINVAL;
+	}
+
+	if (func) {
+		port->puer = (1 << (pin % 32));
+	} else {
+		port->pudr = (1 << (pin % 32));
+	}
+
+	return 0;
+}
+static int pinmux_input(struct device *dev, uint32_t pin, uint8_t func)
+{
+	volatile struct __pio *port = _get_port(pin);
+
+	ARG_UNUSED(dev);
+
+	if (!port) {
+		return -EINVAL;
+	}
+
+	if (func) {
+		port->odr = (1 << (pin % 32));
+	} else {
+		port->oer = (1 << (pin % 32));
+	}
+
+	return 0;
+}
+
+static struct pinmux_driver_api api_funcs = {
+	.set = pinmux_set,
+	.get = pinmux_get,
+	.pullup = pinmux_pullup,
+	.input = pinmux_input
+};
+
+static int pinmux_dev_init(struct device *port)
+{
+	port->driver_api = &api_funcs;
+
+	return 0;
+}
+
+DEVICE_INIT(pmux_dev, CONFIG_PINMUX_DEV_NAME, &pinmux_dev_init, NULL, NULL,
+	    PRIMARY, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);