diff --git a/mcu/driver/peripheral/inc/spi.h b/mcu/driver/peripheral/inc/spi.h
new file mode 100644
index 0000000..b0b64fc
--- /dev/null
+++ b/mcu/driver/peripheral/inc/spi.h
@@ -0,0 +1,609 @@
+/*****************************************************************************
+*  Copyright Statement:
+*  --------------------
+*  This software is protected by Copyright and the information contained
+*  herein is confidential. The software may not be copied and the information
+*  contained herein may not be used or disclosed except with the written
+*  permission of MediaTek Inc. (C) 2005
+*
+*  BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
+*  RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
+*  AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
+*  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
+*  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
+*  NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
+*  SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
+*  SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
+*  THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
+*  NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
+*  SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
+*
+*  BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
+*  LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
+*  AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
+*  OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
+*  MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. 
+*
+*  THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
+*  WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
+*  LAWS PRINCIPLES.  ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
+*  RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
+*  THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
+*
+*****************************************************************************/
+
+/*****************************************************************************
+ *
+ * Filename:
+ * ---------
+ *   spi.h
+ *
+ * Project:
+ * --------
+ *   Maui_Software
+ *
+ * Description:
+ * ------------
+ *   This file is intends for SPI driver.
+ *
+ * Author:
+ * -------
+ * -------
+ *
+ *============================================================================
+ *             HISTORY
+ * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
+ *------------------------------------------------------------------------------
+ *
+ *------------------------------------------------------------------------------
+ * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
+ *============================================================================
+ ****************************************************************************/
+
+#ifndef __spi_h__
+#define __spi_h__
+
+//////////////////RHR-ADD//////////////////////
+#include "kal_general_types.h"
+#include "kal_public_defs.h"
+//////////////////RHR-ADD//////////////////////
+
+//////////////////RHR-REMOVE//////////////////////
+//#include <spi_define.h>
+//////////////////////////////////////////////////
+
+#include "drv_features.h"
+
+#if defined(DRV_SPI_SUPPORT)
+
+/** \brief Open the SPI interface
+ * 
+ * Before using the SPI interface, users have to call this
+ * function to get one unique number to be used in later SPI
+ * API functions.
+ *
+ * \param id Points to a kal_int32. When this function is
+ * finished, and if it succeed, this variable is represented
+ * as an unique identification number which is used as a
+ * parameter in the other SPI API functions if needed.
+ * \return 
+ * - KAL_TRUE if the SPI interface is available.
+ * - KAL_FALSE if the SPI interface is unavailable.
+ */
+#ifdef DRV_SPI_HAL
+#define SPI_OPEN(id) spi_open_old((id), __FILE__, __LINE__);
+#else
+#define SPI_OPEN(id) spi_open((id), __FILE__, __LINE__);
+#endif
+
+/** \brief Release the ownership of the SPI interface, so
+ * that others can use it.
+ *
+ * spi_open() will get the ownership of the SPI interface,
+ * you have to call this function to release the ownership.
+ * 
+ * \param id The return value of spi_open().
+ * \return
+ * - KAL_TRUE if success.
+ * - KAL_FALSE if failure, caller can use spi_get_error_code()
+ * to examine what was wrong.
+ */
+#ifdef DRV_SPI_HAL
+#define SPI_CLOSE(id) spi_close_old((id))
+#else
+#define SPI_CLOSE(id) spi_close((id))
+#endif
+
+
+#define SPI_INTERFACE_MAX_PKT_LENGTH_PER_TIMES (0x400)
+#define SPI_INTERFACE_MAX_PKT_COUNT_PER_TIMES  (0x100)
+
+/**
+ * \def SPI_FIFO_SIZE
+ * \ingroup spi
+ * Defines the internal TX/RX FIFO size of the SPI controller.
+ */
+#define SPI_FIFO_SIZE (32)
+
+/** \enum SPI_TIME_TYPE
+ * \ingroup spi
+ *
+ * @brief
+ * Specify the time intervals used by the SPI interface.
+ */
+enum SPI_TIME_TYPE {
+  SPI_TIME_SETUP,
+  /**<
+   * \ingroup spi
+   * Setup time.
+   */
+  SPI_TIME_HOLD,
+  /**<
+   * \ingroup spi
+   * Hold time.
+   */
+  SPI_TIME_LOW,
+  /**<
+   * \ingroup spi
+   * Low voltage time of the SPI clock.
+   */
+  SPI_TIME_HIGH,
+  /**<
+   * \ingroup spi
+   * High voltage time of the SPI clock.
+   */
+  SPI_TIME_IDLE
+  /**<
+   * \ingroup spi
+   * Idle time.
+   */
+};
+typedef enum SPI_TIME_TYPE SPI_TIME_TYPE;
+
+/** \enum SPI_INT_TYPE
+ * \ingroup spi
+ *
+ * @brief
+ * SPI interrupt category enum.
+ *
+ * This enumeration defines the two interrupts which SPI devices can generate.
+ */
+enum SPI_INT_TYPE {
+  SPI_INT_PAUSE,
+  /**<
+   * \ingroup spi
+   * Pause interrupt.
+   */
+  SPI_INT_FINISH
+  /**<
+   * \ingroup spi
+   * Finish interrupt.
+   */
+};
+typedef enum SPI_INT_TYPE SPI_INT_TYPE;
+
+/** \enum SPI_DIRECTION_TYPE
+ * \ingroup spi
+ *
+ * @brief
+ * SPI direction enum.
+ *
+ * This enumeration defines whether this SPI operation is
+ * transmission of reception.
+ */
+enum SPI_DIRECTION_TYPE {
+  SPI_TX,
+  /**<
+   * \ingroup spi
+   * Means transmission
+   */
+  SPI_RX
+  /**<
+   * \ingroup spi
+   * Means reception
+   */
+};
+typedef enum SPI_DIRECTION_TYPE SPI_DIRECTION_TYPE;
+
+/** \enum SPI_MLSB
+ * \ingroup spi
+ *
+ * @brief
+ * Specify the MSB or LSB used by the SPI TX/RX operation.
+ */
+enum SPI_MLSB {
+  SPI_LSB = 0,
+  /**<
+   * \ingroup spi
+   * LSB.
+   */
+  SPI_MSB
+  /**<
+   * \ingroup spi
+   * MSB.
+   */
+};
+typedef enum SPI_MLSB SPI_MLSB;
+
+/** \enum SPI_CPOL
+ * \ingroup spi
+ *
+ * @brief
+ * Choose the desired clock polarities supported by the SPI interface.
+ */
+enum SPI_CPOL {
+  SPI_CPOL_0 = 0,
+  /**<
+   * \ingroup spi
+   * SPI clock polarity 0.
+   */
+  SPI_CPOL_1
+  /**<
+   * \ingroup spi
+   * SPI clock polarity 1.
+   */
+};
+typedef enum SPI_CPOL SPI_CPOL;
+
+/** \enum SPI_CPHA
+ * \ingroup spi
+ *
+ * @brief
+ * Choose the desired clock formats supported by the SPI interface.
+ */
+enum SPI_CPHA {
+  SPI_CPHA_0 = 0,
+  /**<
+   * \ingroup spi
+   * SPI clock format 0.
+   */
+  SPI_CPHA_1
+  /**<
+   * \ingroup spi
+   * SPI clock format 1.
+   */
+};
+typedef enum SPI_CPHA SPI_CPHA;
+
+/** \enum SPI_MODE
+ * \ingroup spi
+ *
+ * @brief
+ * Choose the SPI FIFO mode or the SPI DMA mode.
+ */
+enum SPI_MODE {
+  SPI_MODE_FIFO = 0,
+  /**<
+   * \ingroup spi
+   * SPI FIFO mode.
+   */
+  SPI_MODE_DMA
+  /**<
+   * \ingroup spi
+   * SPI DMA mode.
+   */
+};
+typedef enum SPI_MODE SPI_MODE;
+
+/** \enum SPI_ERROR_CODE
+ * \ingroup spi
+ *
+ * @brief
+ * The possible result values of each SPI operations.
+ */
+enum SPI_ERROR_CODE {
+  SPI_NO_ERROR = 0,
+  /**<
+   * \ingroup spi
+   * No errors.
+   */
+  
+  SPI_ERROR_CODE_UNAVAILABLE,
+  /**<
+   * \ingroup spi
+   * If ownership of the SPI interface is owned by another
+   * task.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_TIME_TYPE,
+  /**<
+   * \ingroup spi
+   * Unknown spi time type.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_BIT_STATUS,
+  /**<
+   * \ingroup spi
+   * Unknown spi bit status.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_INT_TYPE,
+  /**<
+   * \ingroup spi
+   * Unknown spi interrupt type.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_MSB_LSB_TYPE,
+  /**<
+   * \ingroup spi
+   * Unknown spi MSB/LSB.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_TRANSFER_DIRECTION,
+  /**<
+   * \ingroup spi
+   * Unknown spi TX/RX.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_TRANSFER_TYPE,
+  /**<
+   * \ingroup spi
+   * Unknown spi DMA/FIFO.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_CLK_POLARITY,
+  /**<
+   * \ingroup spi
+   * Unknown spi clock polarity.
+   */
+  
+  SPI_ERROR_CODE_UNKNOWN_CLK_FORMAT,
+  /**<
+   * \ingroup spi
+   * Unknown spi clock format.
+   */
+  
+  SPI_ERROR_CODE_ID_PTR_CAN_NOT_BE_ZERO,
+  /**<
+   * \ingroup spi
+   * In spi_open(), the specified ID address can not
+   * be 0.
+   */
+  
+  SPI_ERROR_CODE_FILENAME_PTR_CAN_NOT_BE_ZERO,
+  /**<
+   * \ingroup spi
+   * In spi_open(), the specified filename address can not
+   * be 0.
+   */
+  
+  SPI_ERROR_CODE_DMA_BUF_ADDR_CAT_NOT_BE_ZERO,
+  /**<
+   * \ingroup spi
+   * In SPI DMA mode, the specified buffer address can not
+   * be 0.
+   */
+  
+  SPI_ERROR_CODE_CONFIG_ATTR_CAN_NOT_BE_ZERO,
+  /**<
+   * \ingroup spi
+   * In spi_config(), the specified spi_attr_t can not
+   * be 0.
+   */
+  
+  SPI_ERROR_CODE_PKT_LENGTH_CAN_NOT_BE_ZERO,
+  /**<
+   * \ingroup spi
+   * In SPI DMA mode, the specified packet length can not be
+   * 0.
+   */
+  
+  SPI_ERROR_CODE_PKT_COUNT_CAN_NOT_BE_ZERO,
+  /**<
+   * \ingroup spi
+   * In SPI DMA mode, the specified packet count can not be
+   * 0.
+   */
+  
+  SPI_ERROR_CODE_PKT_LENGTH_TOO_LARGE,
+  /**<
+   * \ingroup spi
+   * In SPI DMA mode, the specified packet length is too
+   * large to operate. 
+   */
+  
+  SPI_ERROR_CODE_PKT_COUNT_TOO_LARGE,
+  /**<
+   * \ingroup spi
+   * In SPI DMA mode, the specified packet count is too
+   * large to operate. 
+   */
+  
+  SPI_ERROR_CODE_ADDR_NOT_4_ALIGN
+  /**<
+   * \ingroup spi
+   * The buffer addresses for TX and RX should be 4-byte
+   * alignment. 
+   */
+};
+typedef enum SPI_ERROR_CODE SPI_ERROR_CODE;
+
+enum SPI_BIT_STATUS
+{
+  SPI_DISABLE,
+  SPI_ENABLE
+};
+typedef enum SPI_BIT_STATUS SPI_BIT_STATUS;
+
+/**
+ * \typedef spi_cb_func
+ * \ingroup spi
+ * The callback function type.
+ */
+typedef void (*spi_cb_func)(void);
+
+enum SPI_GET_TICK_MODE {
+  SPI_NO_GET_TICK_MODE,
+  SPI_GET_TICK_MODE_DELAY_1,
+  SPI_GET_TICK_MODE_DELAY_2
+};
+typedef enum SPI_GET_TICK_MODE SPI_GET_TICK_MODE;
+
+struct spi_attr_t {
+  kal_uint8 setup_time;
+  kal_uint8 hold_time;
+  kal_uint8 clk_low;
+  kal_uint8 clk_high;
+  kal_uint8 idle_time;
+  kal_bool enable_pause_int;
+  kal_bool enable_finish_int;
+  kal_bool enable_pause_mode;
+  kal_bool enable_deassert_mode;
+  SPI_MLSB tx_mlsb;
+  SPI_MLSB rx_mlsb;
+  SPI_MODE tx_mode;
+  SPI_MODE rx_mode;
+  SPI_CPOL clk_polarity;
+  SPI_CPHA clk_fmt;
+  SPI_GET_TICK_MODE get_tick;
+  kal_bool enable_ultra_high;
+  kal_uint16 ultra_high_thresh;
+  kal_bool enable_gmc_slow_down;
+  kal_bool enable_gmc_split_burst;
+  kal_uint16 gmc_slow_down_thresh;
+};
+typedef struct spi_attr_t spi_attr_t;
+
+typedef enum
+{ SPI_EVENT_INVALID                         = 0x0,
+  SPI_EVENT_TRANSFER_COMPLETE               = 0x1
+} SPIEventType;
+
+extern volatile kal_eventgrpid spi_event_id;
+
+/* Export function prototype. */
+extern void SPI_LISR(void);
+
+#ifdef DRV_SPI_HAL
+extern kal_bool spi_open_old(
+#else
+extern kal_bool spi_open(
+#endif
+  kal_int32 * const id,
+  char const * const filename,
+  kal_uint32 const lineno);
+
+#ifdef DRV_SPI_HAL
+extern kal_bool spi_close_old(
+#else
+extern kal_bool spi_close(
+#endif
+  kal_int32 const id);
+
+extern kal_bool spi_set_time_interval(
+  kal_int32 const id,
+  SPI_TIME_TYPE const type,
+  kal_uint8 const value);
+
+extern kal_bool spi_set_interrupt(
+  kal_int32 const id,
+  SPI_INT_TYPE const type,
+  SPI_BIT_STATUS const status);
+
+extern kal_bool spi_set_msb(
+  kal_int32 const id,
+  SPI_DIRECTION_TYPE const type,
+  SPI_MLSB const msb);
+
+extern kal_bool spi_select_mode(
+  kal_int32 const id,
+  SPI_DIRECTION_TYPE const type,
+  SPI_MODE const mode);
+
+extern kal_bool spi_set_clock_polarity(
+  kal_int32 const id,
+  SPI_CPOL const cpol);
+
+extern kal_bool spi_set_clock_format(
+  kal_int32 const id,
+  SPI_CPHA const cpha);
+
+extern kal_bool spi_set_pause_mode(
+  kal_int32 const id,
+  kal_bool const status);
+
+extern kal_bool spi_set_deassert_mode(
+  kal_int32 const id,
+  kal_bool const status);
+
+extern kal_bool spi_set_desired_size(
+  kal_int32 const id,
+  kal_uint32 const length,
+  kal_uint16 const loop);
+
+extern kal_bool spi_set_get_tick_mode(
+  kal_int32 const id,
+  SPI_GET_TICK_MODE const get_tick);
+
+extern kal_bool spi_slow_down_gmc(
+    kal_int32 const id,
+    kal_bool const slow_down_enable,
+    kal_bool const split_burst_enable,
+    kal_uint16 const slow_down_thresh);
+
+extern kal_bool spi_set_ultra_high(
+    kal_int32 const id,
+    kal_bool const ultra_high_enable,
+    kal_uint16 const ultra_high_thresh);
+
+extern kal_bool spi_set_rwaddr(
+  kal_int32 const id,
+  SPI_DIRECTION_TYPE const type,
+  void * const addr);
+
+extern kal_bool spi_set_cb(
+  kal_int32 const id,
+  SPI_INT_TYPE const type,
+  spi_cb_func func,
+  spi_cb_func * const old);
+
+extern kal_bool spi_set_endian_reverse(
+  kal_int32 const id,
+  SPI_DIRECTION_TYPE const type,
+  kal_bool const reverse);
+
+extern kal_bool spi_config(
+  kal_int32 const id,
+  spi_attr_t * const attr);
+
+extern kal_bool spi_clear_fifo(
+  kal_int32 const id,
+  SPI_DIRECTION_TYPE const direction);
+
+extern kal_bool spi_reset(
+  kal_int32 const id);
+
+extern kal_bool spi_resume(
+  kal_int32 const id);
+
+extern kal_bool spi_activate(
+  kal_int32 const id);
+
+extern kal_bool spi_is_in_pause_mode(void);
+extern kal_bool spi_is_busy(void);
+
+extern kal_bool spi_wait_not_busy(
+  kal_int32 const id);
+
+extern kal_bool spi_fifo_push(
+  kal_int32 const id,
+  kal_uint32 const data);
+
+extern kal_bool spi_fifo_pop(
+  kal_int32 const id,
+  kal_uint32 * const data);
+
+extern void spi_init(void);
+
+extern int rand(void);
+
+#ifdef DRV_SPI_HAL
+extern kal_bool spi_get_driving_current(kal_bool* bEnableSlewRate, kal_uint32* current);
+extern kal_bool spi_set_driving_current(kal_bool bEnableSlewRate, kal_uint32 current);
+extern void spi_select_port(kal_uint32 port);
+#endif
+
+#endif
+
+#endif