diff --git a/plat/mediatek/common/drivers/gpio/mtgpio_common.c b/plat/mediatek/common/drivers/gpio/mtgpio_common.c
new file mode 100644
index 0000000..89977a5
--- /dev/null
+++ b/plat/mediatek/common/drivers/gpio/mtgpio_common.c
@@ -0,0 +1,298 @@
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <drivers/gpio.h>
+#include <lib/mmio.h>
+#include <mtgpio.h>
+#include <platform_def.h>
+
+/******************************************************************************
+ *Macro Definition
+ ******************************************************************************/
+#define GPIO_MODE_BITS		4
+#define MAX_GPIO_MODE_PER_REG	8
+#define MAX_GPIO_REG_BITS	32
+#define DIR_BASE		(GPIO_BASE + 0x000)
+#define DOUT_BASE		(GPIO_BASE + 0x100)
+#define DIN_BASE		(GPIO_BASE + 0x200)
+#define MODE_BASE		(GPIO_BASE + 0x300)
+#define SET			0x4
+#define CLR			0x8
+
+static void mt_set_gpio_dir_chip(uint32_t pin, int dir)
+{
+	uint32_t pos, bit;
+
+	assert(pin < MAX_GPIO_PIN);
+	assert(dir < MT_GPIO_DIR_MAX);
+
+	pos = pin / MAX_GPIO_REG_BITS;
+	bit = pin % MAX_GPIO_REG_BITS;
+
+	if (dir == MT_GPIO_DIR_IN) {
+		mmio_write_32(DIR_BASE + 0x10U * pos + CLR, 1U << bit);
+	} else {
+		mmio_write_32(DIR_BASE + 0x10U * pos + SET, 1U << bit);
+	}
+}
+
+static int mt_get_gpio_dir_chip(uint32_t pin)
+{
+	uint32_t pos, bit;
+	uint32_t reg;
+
+	assert(pin < MAX_GPIO_PIN);
+
+	pos = pin / MAX_GPIO_REG_BITS;
+	bit = pin % MAX_GPIO_REG_BITS;
+
+	reg = mmio_read_32(DIR_BASE + 0x10U * pos);
+	return (((reg & (1U << bit)) != 0U) ? MT_GPIO_DIR_OUT : MT_GPIO_DIR_IN);
+}
+
+static void mt_set_gpio_out_chip(uint32_t pin, int output)
+{
+	uint32_t pos, bit;
+
+	assert(pin < MAX_GPIO_PIN);
+	assert(output < MT_GPIO_OUT_MAX);
+
+	pos = pin / MAX_GPIO_REG_BITS;
+	bit = pin % MAX_GPIO_REG_BITS;
+
+	if (output == MT_GPIO_OUT_ZERO) {
+		mmio_write_32(DOUT_BASE + 0x10U * pos + CLR, 1U << bit);
+	} else {
+		mmio_write_32(DOUT_BASE + 0x10U * pos + SET, 1U << bit);
+	}
+}
+
+static int mt_get_gpio_in_chip(uint32_t pin)
+{
+	uint32_t pos, bit;
+	uint32_t reg;
+
+	assert(pin < MAX_GPIO_PIN);
+
+	pos = pin / MAX_GPIO_REG_BITS;
+	bit = pin % MAX_GPIO_REG_BITS;
+
+	reg = mmio_read_32(DIN_BASE + 0x10U * pos);
+	return (((reg & (1U << bit)) != 0U) ? 1 : 0);
+}
+
+static void mt_gpio_set_spec_pull_pupd(uint32_t pin, int enable,
+			       int select)
+{
+	uintptr_t reg1;
+	uintptr_t reg2;
+	struct mt_pin_info gpio_info;
+
+	gpio_info = mt_pin_infos[pin];
+	uint32_t bit = gpio_info.bit;
+
+	reg1 = mt_gpio_find_reg_addr(pin) + gpio_info.offset;
+	reg2 = reg1 + (gpio_info.base & 0xf0);
+	if (enable == MT_GPIO_PULL_ENABLE) {
+		mmio_write_32(reg2 + SET, (1U << bit));
+		if (select == MT_GPIO_PULL_DOWN) {
+			mmio_write_32(reg1 + SET, (1U << bit));
+		} else {
+			mmio_write_32(reg1 + CLR, (1U << bit));
+		}
+	} else {
+		mmio_write_32(reg2 + CLR, (1U << bit));
+		mmio_write_32((reg2 + 0x010U) + CLR, (1U << bit));
+	}
+}
+
+static void mt_gpio_set_pull_pu_pd(uint32_t pin, int enable,
+				 int select)
+{
+	uintptr_t reg1;
+	uintptr_t reg2;
+	struct mt_pin_info gpio_info;
+
+	gpio_info = mt_pin_infos[pin];
+	uint32_t bit = gpio_info.bit;
+
+	reg1 = mt_gpio_find_reg_addr(pin) + gpio_info.offset;
+	reg2 = reg1 - (gpio_info.base & 0xf0);
+
+	if (enable == MT_GPIO_PULL_ENABLE) {
+		if (select == MT_GPIO_PULL_DOWN) {
+			mmio_write_32(reg1 + CLR, (1U << bit));
+			mmio_write_32(reg2 + SET, (1U << bit));
+		} else {
+			mmio_write_32(reg2 + CLR, (1U << bit));
+			mmio_write_32(reg1 + SET, (1U << bit));
+		}
+	} else {
+		mmio_write_32(reg1 + CLR, (1U << bit));
+		mmio_write_32(reg2 + CLR, (1U << bit));
+	}
+}
+
+static void mt_gpio_set_pull_chip(uint32_t pin, int enable,
+		   int select)
+{
+	struct mt_pin_info gpio_info;
+
+	gpio_info = mt_pin_infos[pin];
+	if (gpio_info.flag) {
+		mt_gpio_set_spec_pull_pupd(pin, enable, select);
+	} else {
+		mt_gpio_set_pull_pu_pd(pin, enable, select);
+	}
+}
+
+static int mt_gpio_get_spec_pull_pupd(uint32_t pin)
+{
+	uintptr_t reg1;
+	uintptr_t reg2;
+	uint32_t r0;
+	uint32_t r1;
+
+	struct mt_pin_info gpio_info;
+
+	gpio_info = mt_pin_infos[pin];
+	uint32_t bit = gpio_info.bit;
+
+	reg1 = mt_gpio_find_reg_addr(pin) + gpio_info.offset;
+	reg2 = reg1 + (gpio_info.base & 0xf0);
+
+	r0 = (mmio_read_32(reg2) >> bit) & 1U;
+	r1 = (mmio_read_32(reg2 + 0x010) >> bit) & 1U;
+	if (r0 == 0U && r1 == 0U) {
+		return MT_GPIO_PULL_NONE;
+	} else {
+		if (mmio_read_32(reg1) & (1U << bit)) {
+			return MT_GPIO_PULL_DOWN;
+		} else {
+			return MT_GPIO_PULL_UP;
+		}
+	}
+}
+
+static int mt_gpio_get_pull_pu_pd(uint32_t pin)
+{
+	uintptr_t reg1;
+	uintptr_t reg2;
+	uint32_t pu;
+	uint32_t pd;
+
+	struct mt_pin_info gpio_info;
+
+	gpio_info = mt_pin_infos[pin];
+	uint32_t bit = gpio_info.bit;
+
+	reg1 = mt_gpio_find_reg_addr(pin) + gpio_info.offset;
+	reg2 = reg1 - (gpio_info.base & 0xf0);
+	pu = (mmio_read_32(reg1) >> bit) & 1U;
+	pd = (mmio_read_32(reg2) >> bit) & 1U;
+	if (pu == 1U) {
+		return MT_GPIO_PULL_UP;
+	} else if (pd == 1U) {
+		return MT_GPIO_PULL_DOWN;
+	} else {
+		return MT_GPIO_PULL_NONE;
+	}
+}
+
+static int mt_gpio_get_pull_chip(uint32_t pin)
+{
+	struct mt_pin_info gpio_info;
+
+	gpio_info = mt_pin_infos[pin];
+	if (gpio_info.flag) {
+		return mt_gpio_get_spec_pull_pupd(pin);
+	} else {
+		return mt_gpio_get_pull_pu_pd(pin);
+	}
+}
+
+static void mt_set_gpio_pull_select_chip(uint32_t pin, int sel)
+{
+	assert(pin < MAX_GPIO_PIN);
+
+	if (sel == MT_GPIO_PULL_NONE) {
+		mt_gpio_set_pull_chip(pin, MT_GPIO_PULL_DISABLE, MT_GPIO_PULL_DOWN);
+	} else if (sel == MT_GPIO_PULL_UP) {
+		mt_gpio_set_pull_chip(pin, MT_GPIO_PULL_ENABLE, MT_GPIO_PULL_UP);
+	} else if (sel == MT_GPIO_PULL_DOWN) {
+		mt_gpio_set_pull_chip(pin, MT_GPIO_PULL_ENABLE, MT_GPIO_PULL_DOWN);
+	}
+}
+
+/* get pull-up or pull-down, regardless of resistor value */
+static int mt_get_gpio_pull_select_chip(uint32_t pin)
+{
+	assert(pin < MAX_GPIO_PIN);
+
+	return mt_gpio_get_pull_chip(pin);
+}
+
+static void mt_set_gpio_dir(int gpio, int direction)
+{
+	mt_set_gpio_dir_chip((uint32_t)gpio, direction);
+}
+
+static int mt_get_gpio_dir(int gpio)
+{
+	uint32_t pin;
+
+	pin = (uint32_t)gpio;
+	return mt_get_gpio_dir_chip(pin);
+}
+
+static void mt_set_gpio_pull(int gpio, int pull)
+{
+	uint32_t pin;
+
+	pin = (uint32_t)gpio;
+	mt_set_gpio_pull_select_chip(pin, pull);
+}
+
+static int mt_get_gpio_pull(int gpio)
+{
+	uint32_t pin;
+
+	pin = (uint32_t)gpio;
+	return mt_get_gpio_pull_select_chip(pin);
+}
+
+static void mt_set_gpio_out(int gpio, int value)
+{
+	uint32_t pin;
+
+	pin = (uint32_t)gpio;
+	mt_set_gpio_out_chip(pin, value);
+}
+
+static int mt_get_gpio_in(int gpio)
+{
+	uint32_t pin;
+
+	pin = (uint32_t)gpio;
+	return mt_get_gpio_in_chip(pin);
+}
+
+const gpio_ops_t mtgpio_ops = {
+	 .get_direction = mt_get_gpio_dir,
+	 .set_direction = mt_set_gpio_dir,
+	 .get_value = mt_get_gpio_in,
+	 .set_value = mt_set_gpio_out,
+	 .set_pull = mt_set_gpio_pull,
+	 .get_pull = mt_get_gpio_pull,
+};
+
+void mt_gpio_init(void)
+{
+	gpio_init(&mtgpio_ops);
+}