diff --git a/drivers/renesas/rcar/emmc/emmc_def.h b/drivers/renesas/rcar/emmc/emmc_def.h
new file mode 100644
index 0000000..2944515
--- /dev/null
+++ b/drivers/renesas/rcar/emmc/emmc_def.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/**
+ * @file  emmc_def.h
+ * @brief eMMC boot is expecting this header file
+ *
+ */
+
+#ifndef __EMMC_DEF_H__
+#define __EMMC_DEF_H__
+
+#include "emmc_std.h"
+
+/* ************************ HEADER (INCLUDE) SECTION *********************** */
+
+/* ***************** MACROS, CONSTANTS, COMPILATION FLAGS ****************** */
+#define EMMC_POWER_ON		(1U)
+
+/* ********************** STRUCTURES, TYPE DEFINITIONS ********************* */
+
+/* ********************** DECLARATION OF EXTERNAL DATA ********************* */
+extern st_mmc_base mmc_drv_obj;
+
+/* ************************** FUNCTION PROTOTYPES ************************** */
+
+/** @brief for assembler program
+ */
+uint32_t _rom_emmc_finalize(void);
+
+/** @brief eMMC driver API
+ */
+EMMC_ERROR_CODE rcar_emmc_init(void);
+EMMC_ERROR_CODE emmc_terminate(void);
+EMMC_ERROR_CODE rcar_emmc_memcard_power(uint8_t mode);
+EMMC_ERROR_CODE rcar_emmc_mount(void);
+EMMC_ERROR_CODE emmc_set_request_mmc_clock(uint32_t *freq);
+EMMC_ERROR_CODE emmc_send_idle_cmd(uint32_t arg);
+EMMC_ERROR_CODE emmc_select_partition(EMMC_PARTITION_ID id);
+EMMC_ERROR_CODE emmc_read_sector(uint32_t *buff_address_virtual,
+				 uint32_t sector_number, uint32_t count,
+				 uint32_t feature_flags);
+EMMC_ERROR_CODE emmc_write_sector(uint32_t *buff_address_virtual,
+				  uint32_t sector_number, uint32_t count,
+				  uint32_t feature_flags);
+EMMC_ERROR_CODE emmc_erase_sector(uint32_t *start_address,
+				  uint32_t *end_address);
+uint32_t emmc_bit_field(uint8_t *data, uint32_t top, uint32_t bottom);
+
+/** @brief interrupt service
+ */
+uint32_t emmc_interrupt(void);
+
+/** @brief DMA
+ */
+
+/** @brief send command API
+ */
+EMMC_ERROR_CODE emmc_exec_cmd(uint32_t error_mask, uint32_t *response);
+void emmc_make_nontrans_cmd(HAL_MEMCARD_COMMAND cmd, uint32_t arg);
+void emmc_make_trans_cmd(HAL_MEMCARD_COMMAND cmd, uint32_t arg,
+			 uint32_t *buff_address_virtual, uint32_t len,
+			 HAL_MEMCARD_OPERATION dir,
+			 HAL_MEMCARD_DATA_TRANSFER_MODE transfer_mode);
+EMMC_ERROR_CODE emmc_set_ext_csd(uint32_t arg);
+
+/** @brief for error information
+ */
+void emmc_write_error_info(uint16_t func_no, EMMC_ERROR_CODE error_code);
+void emmc_write_error_info_func_no(uint16_t func_no);
+
+/* ********************************* CODE ********************************** */
+
+#endif /* #define __EMMC_DEF_H__ */
+/* ******************************** END ************************************ */