diff --git a/include/drivers/mmc.h b/include/drivers/mmc.h
new file mode 100644
index 0000000..65f4bbd
--- /dev/null
+++ b/include/drivers/mmc.h
@@ -0,0 +1,222 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __MMC_H__
+#define __MMC_H__
+
+#include <stdint.h>
+#include <utils_def.h>
+
+#define MMC_BLOCK_SIZE			U(512)
+#define MMC_BLOCK_MASK			(MMC_BLOCK_SIZE - U(1))
+#define MMC_BOOT_CLK_RATE		(400 * 1000)
+
+#define MMC_CMD(_x)			U(_x)
+
+#define MMC_ACMD(_x)			U(_x)
+
+#define OCR_POWERUP			BIT(31)
+#define OCR_HCS				BIT(30)
+#define OCR_BYTE_MODE			(U(0) << 29)
+#define OCR_SECTOR_MODE			(U(2) << 29)
+#define OCR_ACCESS_MODE_MASK		(U(3) << 29)
+#define OCR_3_5_3_6			BIT(23)
+#define OCR_3_4_3_5			BIT(22)
+#define OCR_3_3_3_4			BIT(21)
+#define OCR_3_2_3_3			BIT(20)
+#define OCR_3_1_3_2			BIT(19)
+#define OCR_3_0_3_1			BIT(18)
+#define OCR_2_9_3_0			BIT(17)
+#define OCR_2_8_2_9			BIT(16)
+#define OCR_2_7_2_8			BIT(15)
+#define OCR_VDD_MIN_2V7			GENMASK(23, 15)
+#define OCR_VDD_MIN_2V0			GENMASK(14, 8)
+#define OCR_VDD_MIN_1V7			BIT(7)
+
+#define MMC_RESPONSE_R(_x)		U(_x)
+
+/* Value randomly chosen for eMMC RCA, it should be > 1 */
+#define MMC_FIX_RCA			6
+#define RCA_SHIFT_OFFSET		16
+
+#define CMD_EXTCSD_PARTITION_CONFIG	179
+#define CMD_EXTCSD_BUS_WIDTH		183
+#define CMD_EXTCSD_HS_TIMING		185
+#define CMD_EXTCSD_SEC_CNT		212
+
+#define PART_CFG_BOOT_PARTITION1_ENABLE	(U(1) << 3)
+#define PART_CFG_PARTITION1_ACCESS	(U(1) << 0)
+
+/* Values in EXT CSD register */
+#define MMC_BUS_WIDTH_1			U(0)
+#define MMC_BUS_WIDTH_4			U(1)
+#define MMC_BUS_WIDTH_8			U(2)
+#define MMC_BUS_WIDTH_DDR_4		U(5)
+#define MMC_BUS_WIDTH_DDR_8		U(6)
+#define MMC_BOOT_MODE_BACKWARD		(U(0) << 3)
+#define MMC_BOOT_MODE_HS_TIMING		(U(1) << 3)
+#define MMC_BOOT_MODE_DDR		(U(2) << 3)
+
+#define EXTCSD_SET_CMD			(U(0) << 24)
+#define EXTCSD_SET_BITS			(U(1) << 24)
+#define EXTCSD_CLR_BITS			(U(2) << 24)
+#define EXTCSD_WRITE_BYTES		(U(3) << 24)
+#define EXTCSD_CMD(x)			(((x) & 0xff) << 16)
+#define EXTCSD_VALUE(x)			(((x) & 0xff) << 8)
+#define EXTCSD_CMD_SET_NORMAL		U(1)
+
+#define CSD_TRAN_SPEED_UNIT_MASK	GENMASK(2, 0)
+#define CSD_TRAN_SPEED_MULT_MASK	GENMASK(6, 3)
+#define CSD_TRAN_SPEED_MULT_SHIFT	3
+
+#define STATUS_CURRENT_STATE(x)		(((x) & 0xf) << 9)
+#define STATUS_READY_FOR_DATA		BIT(8)
+#define STATUS_SWITCH_ERROR		BIT(7)
+#define MMC_GET_STATE(x)		(((x) >> 9) & 0xf)
+#define MMC_STATE_IDLE			0
+#define MMC_STATE_READY			1
+#define MMC_STATE_IDENT			2
+#define MMC_STATE_STBY			3
+#define MMC_STATE_TRAN			4
+#define MMC_STATE_DATA			5
+#define MMC_STATE_RCV			6
+#define MMC_STATE_PRG			7
+#define MMC_STATE_DIS			8
+#define MMC_STATE_BTST			9
+#define MMC_STATE_SLP			10
+
+#define MMC_FLAG_CMD23			(U(1) << 0)
+
+#define CMD8_CHECK_PATTERN		U(0xAA)
+#define VHS_2_7_3_6_V			BIT(8)
+
+#define SD_SCR_BUS_WIDTH_1		BIT(8)
+#define SD_SCR_BUS_WIDTH_4		BIT(10)
+
+struct mmc_cmd {
+	unsigned int	cmd_idx;
+	unsigned int	cmd_arg;
+	unsigned int	resp_type;
+	unsigned int	resp_data[4];
+};
+
+struct mmc_ops {
+	void (*init)(void);
+	int (*send_cmd)(struct mmc_cmd *cmd);
+	int (*set_ios)(unsigned int clk, unsigned int width);
+	int (*prepare)(int lba, uintptr_t buf, size_t size);
+	int (*read)(int lba, uintptr_t buf, size_t size);
+	int (*write)(int lba, const uintptr_t buf, size_t size);
+};
+
+struct mmc_csd_emmc {
+	unsigned int		not_used:		1;
+	unsigned int		crc:			7;
+	unsigned int		ecc:			2;
+	unsigned int		file_format:		2;
+	unsigned int		tmp_write_protect:	1;
+	unsigned int		perm_write_protect:	1;
+	unsigned int		copy:			1;
+	unsigned int		file_format_grp:	1;
+
+	unsigned int		reserved_1:		5;
+	unsigned int		write_bl_partial:	1;
+	unsigned int		write_bl_len:		4;
+	unsigned int		r2w_factor:		3;
+	unsigned int		default_ecc:		2;
+	unsigned int		wp_grp_enable:		1;
+
+	unsigned int		wp_grp_size:		5;
+	unsigned int		erase_grp_mult:		5;
+	unsigned int		erase_grp_size:		5;
+	unsigned int		c_size_mult:		3;
+	unsigned int		vdd_w_curr_max:		3;
+	unsigned int		vdd_w_curr_min:		3;
+	unsigned int		vdd_r_curr_max:		3;
+	unsigned int		vdd_r_curr_min:		3;
+	unsigned int		c_size_low:		2;
+
+	unsigned int		c_size_high:		10;
+	unsigned int		reserved_2:		2;
+	unsigned int		dsr_imp:		1;
+	unsigned int		read_blk_misalign:	1;
+	unsigned int		write_blk_misalign:	1;
+	unsigned int		read_bl_partial:	1;
+	unsigned int		read_bl_len:		4;
+	unsigned int		ccc:			12;
+
+	unsigned int		tran_speed:		8;
+	unsigned int		nsac:			8;
+	unsigned int		taac:			8;
+	unsigned int		reserved_3:		2;
+	unsigned int		spec_vers:		4;
+	unsigned int		csd_structure:		2;
+};
+
+struct mmc_csd_sd_v2 {
+	unsigned int		not_used:		1;
+	unsigned int		crc:			7;
+	unsigned int		reserved_1:		2;
+	unsigned int		file_format:		2;
+	unsigned int		tmp_write_protect:	1;
+	unsigned int		perm_write_protect:	1;
+	unsigned int		copy:			1;
+	unsigned int		file_format_grp:	1;
+
+	unsigned int		reserved_2:		5;
+	unsigned int		write_bl_partial:	1;
+	unsigned int		write_bl_len:		4;
+	unsigned int		r2w_factor:		3;
+	unsigned int		reserved_3:		2;
+	unsigned int		wp_grp_enable:		1;
+
+	unsigned int		wp_grp_size:		7;
+	unsigned int		sector_size:		7;
+	unsigned int		erase_block_en:		1;
+	unsigned int		reserved_4:		1;
+	unsigned int		c_size_low:		16;
+
+	unsigned int		c_size_high:		6;
+	unsigned int		reserved_5:		6;
+	unsigned int		dsr_imp:		1;
+	unsigned int		read_blk_misalign:	1;
+	unsigned int		write_blk_misalign:	1;
+	unsigned int		read_bl_partial:	1;
+	unsigned int		read_bl_len:		4;
+	unsigned int		ccc:			12;
+
+	unsigned int		tran_speed:		8;
+	unsigned int		nsac:			8;
+	unsigned int		taac:			8;
+	unsigned int		reserved_6:		6;
+	unsigned int		csd_structure:		2;
+};
+
+enum mmc_device_type {
+	MMC_IS_EMMC,
+	MMC_IS_SD,
+	MMC_IS_SD_HC,
+};
+
+struct mmc_device_info {
+	unsigned long long	device_size;	/* Size of device in bytes */
+	unsigned int		block_size;	/* Block size in bytes */
+	unsigned int		max_bus_freq;	/* Max bus freq in Hz */
+	enum mmc_device_type	mmc_dev_type;	/* Type of MMC */
+};
+
+size_t mmc_read_blocks(unsigned int lba, uintptr_t buf, size_t size);
+size_t mmc_write_blocks(unsigned int lba, const uintptr_t buf, size_t size);
+size_t mmc_erase_blocks(unsigned int lba, size_t size);
+size_t mmc_rpmb_read_blocks(unsigned int lba, uintptr_t buf, size_t size);
+size_t mmc_rpmb_write_blocks(unsigned int lba, const uintptr_t buf,
+			     size_t size);
+size_t mmc_rpmb_erase_blocks(unsigned int lba, size_t size);
+int mmc_init(const struct mmc_ops *ops_ptr, unsigned int clk,
+	     unsigned int width, unsigned int flags,
+	     struct mmc_device_info *device_info);
+
+#endif	/* __MMC_H__ */