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diff --git a/drivers/bus/fslmc/mc/fsl_dpio.h b/drivers/bus/fslmc/mc/fsl_dpio.h
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+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * BSD LICENSE
+ *
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright (c) 2016 NXP.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPIO_H
+#define __FSL_DPIO_H
+
+/* Data Path I/O Portal API
+ * Contains initialization APIs and runtime control APIs for DPIO
+ */
+
+struct fsl_mc_io;
+
+/**
+ * dpio_open() - Open a control session for the specified object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpio_id: DPIO unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpio_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and any MC portals
+ * assigned to the parent container; this token must be used in
+ * all subsequent commands for this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_open(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ int dpio_id,
+ uint16_t *token);
+
+/**
+ * dpio_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_close(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token);
+
+/**
+ * enum dpio_channel_mode - DPIO notification channel mode
+ * @DPIO_NO_CHANNEL: No support for notification channel
+ * @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
+ * dedicated channel in the DPIO; user should point the queue's
+ * destination in the relevant interface to this DPIO
+ */
+enum dpio_channel_mode {
+ DPIO_NO_CHANNEL = 0,
+ DPIO_LOCAL_CHANNEL = 1,
+};
+
+/**
+ * struct dpio_cfg - Structure representing DPIO configuration
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification channel (1-8);
+ * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
+ */
+struct dpio_cfg {
+ enum dpio_channel_mode channel_mode;
+ uint8_t num_priorities;
+};
+
+/**
+ * dpio_create() - Create the DPIO object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @cfg: Configuration structure
+ * @obj_id: returned object id
+ *
+ * Create the DPIO object, allocate required resources and
+ * perform required initialization.
+ *
+ * The object can be created either by declaring it in the
+ * DPL file, or by calling this function.
+ *
+ * The function accepts an authentication token of a parent
+ * container that this object should be assigned to. The token
+ * can be '0' so the object will be assigned to the default container.
+ * The newly created object can be opened with the returned
+ * object id and using the container's associated tokens and MC portals.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_create(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ const struct dpio_cfg *cfg,
+ uint32_t *obj_id);
+
+/**
+ * dpio_destroy() - Destroy the DPIO object and release all its resources.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @object_id: The object id; it must be a valid id within the container that
+ * created this object;
+ *
+ * The function accepts the authentication token of the parent container that
+ * created the object (not the one that currently owns the object). The object
+ * is searched within parent using the provided 'object_id'.
+ * All tokens to the object must be closed before calling destroy.
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_destroy(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ uint32_t object_id);
+
+/**
+ * dpio_enable() - Enable the DPIO, allow I/O portal operations.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_enable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token);
+
+/**
+ * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_disable(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token);
+
+/**
+ * dpio_is_enabled() - Check if the DPIO is enabled.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_is_enabled(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ int *en);
+
+/**
+ * dpio_reset() - Reset the DPIO, returns the object to initial state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_reset(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token);
+
+/**
+ * dpio_set_stashing_destination() - Set the stashing destination.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ * @sdest: stashing destination value
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t sdest);
+
+/**
+ * dpio_get_stashing_destination() - Get the stashing destination..
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ * @sdest: Returns the stashing destination value
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_get_stashing_destination(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t *sdest);
+
+/**
+ * struct dpio_attr - Structure representing DPIO attributes
+ * @id: DPIO object ID
+ * @qbman_portal_ce_offset: offset of the software portal cache-enabled area
+ * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
+ * @qbman_portal_id: Software portal ID
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification channel (1-8);
+ * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
+ * @qbman_version: QBMAN version
+ */
+struct dpio_attr {
+ int id;
+ uint64_t qbman_portal_ce_offset;
+ uint64_t qbman_portal_ci_offset;
+ uint16_t qbman_portal_id;
+ enum dpio_channel_mode channel_mode;
+ uint8_t num_priorities;
+ uint32_t qbman_version;
+ uint32_t clk;
+};
+
+/**
+ * dpio_get_attributes() - Retrieve DPIO attributes
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_get_attributes(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ struct dpio_attr *attr);
+
+/**
+ * dpio_get_api_version() - Get Data Path I/O API version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path i/o API
+ * @minor_ver: Minor version of data path i/o API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_get_api_version(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t *major_ver,
+ uint16_t *minor_ver);
+
+#endif /* __FSL_DPIO_H */