layerscape: upgrade kernel to 4.14

This patch is to upgrade kernel to 4.14 for layerscape.
patches-4.14 for layerscape included two categories.

- NXP Layerscape SDK kernel-4.14 patches

  All patches on tag LSDK-18.09-V4.14 were ported to OpenWrt
  kernel. Since there were hundreds patches, we had to make
  an all-in-one patch for each IP/feature.
  See below links for LSDK kernel.
  https://lsdk.github.io/components.html
  https://source.codeaurora.org/external/qoriq/qoriq-components/linux

- Non-LSDK kernel patches

  Other patches which were not in LSDK were just put in patches-4.14.
  Kept below patches from patches-4.9.
  303-dts-layerscape-add-traverse-ls1043.patch
  821-add-esdhc-vsel-to-ls1043.patch
  822-rgmii-fixed-link.patch

  Renamed and rebase them as below in patches-4.14,
  303-add-DTS-for-Traverse-LS1043-Boards.patch
  712-sdk-dpaa-rgmii-fixed-link.patch
  824-mmc-sdhci-of-esdhc-add-voltage-switch-support-for-ls.patch

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Biwen Li <biwen.li@nxp.com>

1 files changed, 1367 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-4.14/705-dpaa2-rtc-support-layerscape.patch b/target/linux/layerscape/patches-4.14/705-dpaa2-rtc-support-layerscape.patch
new file mode 100644
index 0000000000..de6816b582
--- /dev/null
+++ b/target/linux/layerscape/patches-4.14/705-dpaa2-rtc-support-layerscape.patch
@@ -0,0 +1,1367 @@
+From 579f1f6767b1008c6e5ccc2b029acbb56002ed8b Mon Sep 17 00:00:00 2001
+From: Biwen Li <biwen.li@nxp.com>
+Date: Tue, 30 Oct 2018 18:26:20 +0800
+Subject: [PATCH 11/40] dpaa2-rtc: support layerscape
+This is an integrated patch of dpaa2-rtc for layerscape
+
+Signed-off-by: Catalin Horghidan <catalin.horghidan@nxp.com>
+Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
+Signed-off-by: Biwen Li <biwen.li@nxp.com>
+---
+ drivers/staging/fsl-dpaa2/rtc/Makefile    |  10 +
+ drivers/staging/fsl-dpaa2/rtc/dprtc-cmd.h | 160 +++++
+ drivers/staging/fsl-dpaa2/rtc/dprtc.c     | 746 ++++++++++++++++++++++
+ drivers/staging/fsl-dpaa2/rtc/dprtc.h     | 172 +++++
+ drivers/staging/fsl-dpaa2/rtc/rtc.c       | 242 +++++++
+ 5 files changed, 1330 insertions(+)
+ create mode 100644 drivers/staging/fsl-dpaa2/rtc/Makefile
+ create mode 100644 drivers/staging/fsl-dpaa2/rtc/dprtc-cmd.h
+ create mode 100644 drivers/staging/fsl-dpaa2/rtc/dprtc.c
+ create mode 100644 drivers/staging/fsl-dpaa2/rtc/dprtc.h
+ create mode 100644 drivers/staging/fsl-dpaa2/rtc/rtc.c
+
+--- /dev/null
++++ b/drivers/staging/fsl-dpaa2/rtc/Makefile
+@@ -0,0 +1,10 @@
++
++obj-$(CONFIG_PTP_1588_CLOCK_DPAA2) += dpaa2-rtc.o
++
++dpaa2-rtc-objs := rtc.o dprtc.o
++
++all:
++	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
++
++clean:
++	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
+--- /dev/null
++++ b/drivers/staging/fsl-dpaa2/rtc/dprtc-cmd.h
+@@ -0,0 +1,160 @@
++/* Copyright 2013-2016 Freescale Semiconductor Inc.
++ *
++ * 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.
++ *
++ *
++ * 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_DPRTC_CMD_H
++#define _FSL_DPRTC_CMD_H
++
++/* DPRTC Version */
++#define DPRTC_VER_MAJOR			2
++#define DPRTC_VER_MINOR			0
++
++/* Command versioning */
++#define DPRTC_CMD_BASE_VERSION		1
++#define DPRTC_CMD_ID_OFFSET		4
++
++#define DPRTC_CMD(id)	(((id) << DPRTC_CMD_ID_OFFSET) | DPRTC_CMD_BASE_VERSION)
++
++/* Command IDs */
++#define DPRTC_CMDID_CLOSE			DPRTC_CMD(0x800)
++#define DPRTC_CMDID_OPEN			DPRTC_CMD(0x810)
++#define DPRTC_CMDID_CREATE			DPRTC_CMD(0x910)
++#define DPRTC_CMDID_DESTROY			DPRTC_CMD(0x990)
++#define DPRTC_CMDID_GET_API_VERSION		DPRTC_CMD(0xa10)
++
++#define DPRTC_CMDID_ENABLE			DPRTC_CMD(0x002)
++#define DPRTC_CMDID_DISABLE			DPRTC_CMD(0x003)
++#define DPRTC_CMDID_GET_ATTR			DPRTC_CMD(0x004)
++#define DPRTC_CMDID_RESET			DPRTC_CMD(0x005)
++#define DPRTC_CMDID_IS_ENABLED			DPRTC_CMD(0x006)
++
++#define DPRTC_CMDID_SET_IRQ_ENABLE		DPRTC_CMD(0x012)
++#define DPRTC_CMDID_GET_IRQ_ENABLE		DPRTC_CMD(0x013)
++#define DPRTC_CMDID_SET_IRQ_MASK		DPRTC_CMD(0x014)
++#define DPRTC_CMDID_GET_IRQ_MASK		DPRTC_CMD(0x015)
++#define DPRTC_CMDID_GET_IRQ_STATUS		DPRTC_CMD(0x016)
++#define DPRTC_CMDID_CLEAR_IRQ_STATUS		DPRTC_CMD(0x017)
++
++#define DPRTC_CMDID_SET_CLOCK_OFFSET		DPRTC_CMD(0x1d0)
++#define DPRTC_CMDID_SET_FREQ_COMPENSATION	DPRTC_CMD(0x1d1)
++#define DPRTC_CMDID_GET_FREQ_COMPENSATION	DPRTC_CMD(0x1d2)
++#define DPRTC_CMDID_GET_TIME			DPRTC_CMD(0x1d3)
++#define DPRTC_CMDID_SET_TIME			DPRTC_CMD(0x1d4)
++#define DPRTC_CMDID_SET_ALARM			DPRTC_CMD(0x1d5)
++#define DPRTC_CMDID_SET_PERIODIC_PULSE		DPRTC_CMD(0x1d6)
++#define DPRTC_CMDID_CLEAR_PERIODIC_PULSE	DPRTC_CMD(0x1d7)
++#define DPRTC_CMDID_SET_EXT_TRIGGER		DPRTC_CMD(0x1d8)
++#define DPRTC_CMDID_CLEAR_EXT_TRIGGER		DPRTC_CMD(0x1d9)
++#define DPRTC_CMDID_GET_EXT_TRIGGER_TIMESTAMP	DPRTC_CMD(0x1dA)
++
++/* Macros for accessing command fields smaller than 1byte */
++#define DPRTC_MASK(field)        \
++	GENMASK(DPRTC_##field##_SHIFT + DPRTC_##field##_SIZE - 1, \
++		DPRTC_##field##_SHIFT)
++#define dprtc_get_field(var, field)      \
++	(((var) & DPRTC_MASK(field)) >> DPRTC_##field##_SHIFT)
++
++#pragma pack(push, 1)
++struct dprtc_cmd_open {
++	uint32_t dprtc_id;
++};
++
++struct dprtc_cmd_destroy {
++	uint32_t object_id;
++};
++
++#define DPRTC_ENABLE_SHIFT	0
++#define DPRTC_ENABLE_SIZE	1
++
++struct dprtc_rsp_is_enabled {
++	uint8_t en;
++};
++
++struct dprtc_cmd_get_irq {
++	uint32_t pad;
++	uint8_t irq_index;
++};
++
++struct dprtc_cmd_set_irq_enable {
++	uint8_t en;
++	uint8_t pad[3];
++	uint8_t irq_index;
++};
++
++struct dprtc_rsp_get_irq_enable {
++	uint8_t en;
++};
++
++struct dprtc_cmd_set_irq_mask {
++	uint32_t mask;
++	uint8_t irq_index;
++};
++
++struct dprtc_rsp_get_irq_mask {
++	uint32_t mask;
++};
++
++struct dprtc_cmd_get_irq_status {
++	uint32_t status;
++	uint8_t irq_index;
++};
++
++struct dprtc_rsp_get_irq_status {
++	uint32_t status;
++};
++
++struct dprtc_cmd_clear_irq_status {
++	uint32_t status;
++	uint8_t irq_index;
++};
++
++struct dprtc_rsp_get_attributes {
++	uint32_t pad;
++	uint32_t id;
++};
++
++struct dprtc_cmd_set_clock_offset {
++	uint64_t offset;
++};
++
++struct dprtc_get_freq_compensation {
++	uint32_t freq_compensation;
++};
++
++struct dprtc_time {
++	uint64_t time;
++};
++
++struct dprtc_rsp_get_api_version {
++	uint16_t major;
++	uint16_t minor;
++};
++#pragma pack(pop)
++#endif /* _FSL_DPRTC_CMD_H */
+--- /dev/null
++++ b/drivers/staging/fsl-dpaa2/rtc/dprtc.c
+@@ -0,0 +1,746 @@
++/* Copyright 2013-2016 Freescale Semiconductor Inc.
++ *
++ * 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.
++ *
++ *
++ * 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.
++ */
++#include <linux/fsl/mc.h>
++
++#include "dprtc.h"
++#include "dprtc-cmd.h"
++
++/**
++ * dprtc_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_'
++ * @dprtc_id:	DPRTC 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 dprtc_create function.
++ * This function returns a unique authentication token,
++ * associated with the specific object ID and the specific MC
++ * portal; this token must be used in all subsequent commands for
++ * this specific object
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_open(struct fsl_mc_io *mc_io,
++	       uint32_t cmd_flags,
++	       int dprtc_id,
++	       uint16_t *token)
++{
++	struct dprtc_cmd_open *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_OPEN,
++					  cmd_flags,
++					  0);
++	cmd_params = (struct dprtc_cmd_open *)cmd.params;
++	cmd_params->dprtc_id = cpu_to_le32(dprtc_id);
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	*token = mc_cmd_hdr_read_token(&cmd);
++
++	return err;
++}
++
++/**
++ * dprtc_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 DPRTC object
++ *
++ * After this function is called, no further operations are
++ * allowed on the object without opening a new control session.
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_close(struct fsl_mc_io *mc_io,
++		uint32_t cmd_flags,
++		uint16_t token)
++{
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CLOSE, cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_create() - Create the DPRTC 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 DPRTC object, allocate required resources and
++ * perform required initialization.
++ *
++ * 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 dprtc_create(struct fsl_mc_io *mc_io,
++		 uint16_t dprc_token,
++		 uint32_t cmd_flags,
++		 const struct dprtc_cfg *cfg,
++		 uint32_t *obj_id)
++{
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	(void)(cfg); /* unused */
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CREATE,
++					  cmd_flags,
++					  dprc_token);
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	*obj_id = mc_cmd_read_object_id(&cmd);
++
++	return 0;
++}
++
++/**
++ * dprtc_destroy() - Destroy the DPRTC 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 dprtc_destroy(struct fsl_mc_io *mc_io,
++		  uint16_t dprc_token,
++		  uint32_t cmd_flags,
++		  uint32_t object_id)
++{
++	struct dprtc_cmd_destroy *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_DESTROY,
++					  cmd_flags,
++					  dprc_token);
++	cmd_params = (struct dprtc_cmd_destroy *)cmd.params;
++	cmd_params->object_id = cpu_to_le32(object_id);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++int dprtc_enable(struct fsl_mc_io *mc_io,
++		 uint32_t cmd_flags,
++		 uint16_t token)
++{
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_ENABLE, cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++int dprtc_disable(struct fsl_mc_io *mc_io,
++		  uint32_t cmd_flags,
++		  uint16_t token)
++{
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_DISABLE,
++					  cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++int dprtc_is_enabled(struct fsl_mc_io *mc_io,
++		     uint32_t cmd_flags,
++		     uint16_t token,
++		     int *en)
++{
++	struct dprtc_rsp_is_enabled *rsp_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_IS_ENABLED, cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	rsp_params = (struct dprtc_rsp_is_enabled *)cmd.params;
++	*en = dprtc_get_field(rsp_params->en, ENABLE);
++
++	return 0;
++}
++
++int dprtc_reset(struct fsl_mc_io *mc_io,
++		uint32_t cmd_flags,
++		uint16_t token)
++{
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_RESET,
++					  cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_set_irq_enable() - Set overall interrupt 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 DPRTC object
++ * @irq_index:	The interrupt index to configure
++ * @en:		Interrupt state - enable = 1, disable = 0
++ *
++ * Allows GPP software to control when interrupts are generated.
++ * Each interrupt can have up to 32 causes.  The enable/disable control's the
++ * overall interrupt state. if the interrupt is disabled no causes will cause
++ * an interrupt.
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_set_irq_enable(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 uint8_t irq_index,
++			 uint8_t en)
++{
++	struct dprtc_cmd_set_irq_enable *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_IRQ_ENABLE,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_cmd_set_irq_enable *)cmd.params;
++	cmd_params->irq_index = irq_index;
++	cmd_params->en = en;
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_get_irq_enable() - Get overall interrupt 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 DPRTC object
++ * @irq_index:	The interrupt index to configure
++ * @en:		Returned interrupt state - enable = 1, disable = 0
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_get_irq_enable(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 uint8_t irq_index,
++			 uint8_t *en)
++{
++	struct dprtc_rsp_get_irq_enable *rsp_params;
++	struct dprtc_cmd_get_irq *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_ENABLE,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_cmd_get_irq *)cmd.params;
++	cmd_params->irq_index = irq_index;
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	rsp_params = (struct dprtc_rsp_get_irq_enable *)cmd.params;
++	*en = rsp_params->en;
++
++	return 0;
++}
++
++/**
++ * dprtc_set_irq_mask() - Set interrupt mask.
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @irq_index:	The interrupt index to configure
++ * @mask:	Event mask to trigger interrupt;
++ *		each bit:
++ *			0 = ignore event
++ *			1 = consider event for asserting IRQ
++ *
++ * Every interrupt can have up to 32 causes and the interrupt model supports
++ * masking/unmasking each cause independently
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_set_irq_mask(struct fsl_mc_io *mc_io,
++		       uint32_t cmd_flags,
++		       uint16_t token,
++		       uint8_t irq_index,
++		       uint32_t mask)
++{
++	struct dprtc_cmd_set_irq_mask *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_IRQ_MASK,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_cmd_set_irq_mask *)cmd.params;
++	cmd_params->mask = cpu_to_le32(mask);
++	cmd_params->irq_index = irq_index;
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_get_irq_mask() - Get interrupt mask.
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @irq_index:	The interrupt index to configure
++ * @mask:	Returned event mask to trigger interrupt
++ *
++ * Every interrupt can have up to 32 causes and the interrupt model supports
++ * masking/unmasking each cause independently
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_get_irq_mask(struct fsl_mc_io *mc_io,
++		       uint32_t cmd_flags,
++		       uint16_t token,
++		       uint8_t irq_index,
++		       uint32_t *mask)
++{
++	struct dprtc_rsp_get_irq_mask *rsp_params;
++	struct dprtc_cmd_get_irq *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_MASK,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_cmd_get_irq *)cmd.params;
++	cmd_params->irq_index = irq_index;
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	rsp_params = (struct dprtc_rsp_get_irq_mask *)cmd.params;
++	*mask = le32_to_cpu(rsp_params->mask);
++
++	return 0;
++}
++
++/**
++ * dprtc_get_irq_status() - Get the current status of any pending interrupts.
++ *
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @irq_index:	The interrupt index to configure
++ * @status:	Returned interrupts status - one bit per cause:
++ *			0 = no interrupt pending
++ *			1 = interrupt pending
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_get_irq_status(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 uint8_t irq_index,
++			 uint32_t *status)
++{
++	struct dprtc_cmd_get_irq_status *cmd_params;
++	struct dprtc_rsp_get_irq_status *rsp_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_IRQ_STATUS,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_cmd_get_irq_status *)cmd.params;
++	cmd_params->status = cpu_to_le32(*status);
++	cmd_params->irq_index = irq_index;
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	rsp_params = (struct dprtc_rsp_get_irq_status *)cmd.params;
++	*status = rsp_params->status;
++
++	return 0;
++}
++
++/**
++ * dprtc_clear_irq_status() - Clear a pending interrupt's status
++ *
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @irq_index:	The interrupt index to configure
++ * @status:	Bits to clear (W1C) - one bit per cause:
++ *			0 = don't change
++ *			1 = clear status bit
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_clear_irq_status(struct fsl_mc_io *mc_io,
++			   uint32_t cmd_flags,
++			   uint16_t token,
++			   uint8_t irq_index,
++			   uint32_t status)
++{
++	struct dprtc_cmd_clear_irq_status *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_CLEAR_IRQ_STATUS,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_cmd_clear_irq_status *)cmd.params;
++	cmd_params->irq_index = irq_index;
++	cmd_params->status = cpu_to_le32(status);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_get_attributes - Retrieve DPRTC 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 DPRTC object
++ * @attr:	Returned object's attributes
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_get_attributes(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 struct dprtc_attr *attr)
++{
++	struct dprtc_rsp_get_attributes *rsp_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_ATTR,
++					  cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	rsp_params = (struct dprtc_rsp_get_attributes *)cmd.params;
++	attr->id = le32_to_cpu(rsp_params->id);
++
++	return 0;
++}
++
++/**
++ * dprtc_set_clock_offset() - Sets the clock's offset
++ * (usually relative to another clock).
++ *
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @offset:	New clock offset (in nanoseconds).
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_set_clock_offset(struct fsl_mc_io *mc_io,
++			   uint32_t cmd_flags,
++			   uint16_t token,
++			   int64_t offset)
++{
++	struct dprtc_cmd_set_clock_offset *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_CLOCK_OFFSET,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_cmd_set_clock_offset *)cmd.params;
++	cmd_params->offset = cpu_to_le64(offset);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_set_freq_compensation() - Sets a new frequency compensation value.
++ *
++ * @mc_io:		Pointer to MC portal's I/O object
++ * @cmd_flags:		Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:		Token of DPRTC object
++ * @freq_compensation:	The new frequency compensation value to set.
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_set_freq_compensation(struct fsl_mc_io *mc_io,
++				uint32_t cmd_flags,
++				uint16_t token,
++				uint32_t freq_compensation)
++{
++	struct dprtc_get_freq_compensation *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_FREQ_COMPENSATION,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_get_freq_compensation *)cmd.params;
++	cmd_params->freq_compensation = cpu_to_le32(freq_compensation);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_get_freq_compensation() - Retrieves the frequency compensation value
++ *
++ * @mc_io:		Pointer to MC portal's I/O object
++ * @cmd_flags:		Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:		Token of DPRTC object
++ * @freq_compensation:	Frequency compensation value
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_get_freq_compensation(struct fsl_mc_io *mc_io,
++				uint32_t cmd_flags,
++				uint16_t token,
++				uint32_t *freq_compensation)
++{
++	struct dprtc_get_freq_compensation *rsp_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_FREQ_COMPENSATION,
++					  cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	rsp_params = (struct dprtc_get_freq_compensation *)cmd.params;
++	*freq_compensation = le32_to_cpu(rsp_params->freq_compensation);
++
++	return 0;
++}
++
++/**
++ * dprtc_get_time() - Returns the current RTC time.
++ *
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @time:	Current RTC time.
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_get_time(struct fsl_mc_io *mc_io,
++		   uint32_t cmd_flags,
++		   uint16_t token,
++		   uint64_t *time)
++{
++	struct dprtc_time *rsp_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_TIME,
++					  cmd_flags,
++					  token);
++
++	/* send command to mc*/
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	/* retrieve response parameters */
++	rsp_params = (struct dprtc_time *)cmd.params;
++	*time = le64_to_cpu(rsp_params->time);
++
++	return 0;
++}
++
++/**
++ * dprtc_set_time() - Updates current RTC time.
++ *
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @time:	New RTC time.
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_set_time(struct fsl_mc_io *mc_io,
++		   uint32_t cmd_flags,
++		   uint16_t token,
++		   uint64_t time)
++{
++	struct dprtc_time *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_TIME,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_time *)cmd.params;
++	cmd_params->time = cpu_to_le64(time);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_set_alarm() - Defines and sets alarm.
++ *
++ * @mc_io:	Pointer to MC portal's I/O object
++ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:	Token of DPRTC object
++ * @time:	In nanoseconds, the time when the alarm
++ *			should go off - must be a multiple of
++ *			1 microsecond
++ *
++ * Return:	'0' on Success; Error code otherwise.
++ */
++int dprtc_set_alarm(struct fsl_mc_io *mc_io,
++		    uint32_t cmd_flags,
++		    uint16_t token, uint64_t time)
++{
++	struct dprtc_time *cmd_params;
++	struct fsl_mc_command cmd = { 0 };
++
++	/* prepare command */
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_SET_ALARM,
++					  cmd_flags,
++					  token);
++	cmd_params = (struct dprtc_time *)cmd.params;
++	cmd_params->time = cpu_to_le64(time);
++
++	/* send command to mc*/
++	return mc_send_command(mc_io, &cmd);
++}
++
++/**
++ * dprtc_get_api_version() - Get Data Path Real Time Counter 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 real time counter API
++ * @minor_ver:	Minor version of data path real time counter API
++ *
++ * Return:  '0' on Success; Error code otherwise.
++ */
++int dprtc_get_api_version(struct fsl_mc_io *mc_io,
++			  uint32_t cmd_flags,
++			  uint16_t *major_ver,
++			  uint16_t *minor_ver)
++{
++	struct dprtc_rsp_get_api_version *rsp_params;
++	struct fsl_mc_command cmd = { 0 };
++	int err;
++
++	cmd.header = mc_encode_cmd_header(DPRTC_CMDID_GET_API_VERSION,
++					cmd_flags,
++					0);
++
++	err = mc_send_command(mc_io, &cmd);
++	if (err)
++		return err;
++
++	rsp_params = (struct dprtc_rsp_get_api_version *)cmd.params;
++	*major_ver = le16_to_cpu(rsp_params->major);
++	*minor_ver = le16_to_cpu(rsp_params->minor);
++
++	return 0;
++}
+--- /dev/null
++++ b/drivers/staging/fsl-dpaa2/rtc/dprtc.h
+@@ -0,0 +1,172 @@
++/* Copyright 2013-2016 Freescale Semiconductor Inc.
++ *
++ * 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.
++ *
++ *
++ * 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_DPRTC_H
++#define __FSL_DPRTC_H
++
++/* Data Path Real Time Counter API
++ * Contains initialization APIs and runtime control APIs for RTC
++ */
++
++struct fsl_mc_io;
++
++/**
++ * Number of irq's
++ */
++#define DPRTC_MAX_IRQ_NUM			1
++#define DPRTC_IRQ_INDEX				0
++
++/**
++ * Interrupt event masks:
++ */
++
++/**
++ * Interrupt event mask indicating alarm event had occurred
++ */
++#define DPRTC_EVENT_ALARM			0x40000000
++/**
++ * Interrupt event mask indicating periodic pulse event had occurred
++ */
++#define DPRTC_EVENT_PPS				0x08000000
++
++int dprtc_open(struct fsl_mc_io *mc_io,
++	       uint32_t cmd_flags,
++	       int dprtc_id,
++	       uint16_t *token);
++
++int dprtc_close(struct fsl_mc_io *mc_io,
++		uint32_t cmd_flags,
++		uint16_t token);
++
++/**
++ * struct dprtc_cfg - Structure representing DPRTC configuration
++ * @options:	place holder
++ */
++struct dprtc_cfg {
++	uint32_t options;
++};
++
++int dprtc_create(struct fsl_mc_io *mc_io,
++		 uint16_t dprc_token,
++		 uint32_t cmd_flags,
++		 const struct dprtc_cfg *cfg,
++		 uint32_t *obj_id);
++
++int dprtc_destroy(struct fsl_mc_io *mc_io,
++		  uint16_t dprc_token,
++		  uint32_t cmd_flags,
++		  uint32_t object_id);
++
++int dprtc_set_clock_offset(struct fsl_mc_io *mc_io,
++			   uint32_t cmd_flags,
++			   uint16_t token,
++			   int64_t offset);
++
++int dprtc_set_freq_compensation(struct fsl_mc_io *mc_io,
++		  uint32_t cmd_flags,
++		  uint16_t token,
++		  uint32_t freq_compensation);
++
++int dprtc_get_freq_compensation(struct fsl_mc_io *mc_io,
++		  uint32_t cmd_flags,
++		  uint16_t token,
++		  uint32_t *freq_compensation);
++
++int dprtc_get_time(struct fsl_mc_io *mc_io,
++		   uint32_t cmd_flags,
++		   uint16_t token,
++		   uint64_t *time);
++
++int dprtc_set_time(struct fsl_mc_io *mc_io,
++		   uint32_t cmd_flags,
++		   uint16_t token,
++		   uint64_t time);
++
++int dprtc_set_alarm(struct fsl_mc_io *mc_io,
++		    uint32_t cmd_flags,
++		    uint16_t token,
++		    uint64_t time);
++
++int dprtc_set_irq_enable(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 uint8_t irq_index,
++			 uint8_t en);
++
++int dprtc_get_irq_enable(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 uint8_t irq_index,
++			 uint8_t *en);
++
++int dprtc_set_irq_mask(struct fsl_mc_io *mc_io,
++		       uint32_t cmd_flags,
++		       uint16_t token,
++		       uint8_t irq_index,
++		       uint32_t mask);
++
++int dprtc_get_irq_mask(struct fsl_mc_io *mc_io,
++		       uint32_t cmd_flags,
++		       uint16_t token,
++		       uint8_t irq_index,
++		       uint32_t *mask);
++
++int dprtc_get_irq_status(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 uint8_t irq_index,
++			 uint32_t *status);
++
++int dprtc_clear_irq_status(struct fsl_mc_io *mc_io,
++			   uint32_t cmd_flags,
++			   uint16_t token,
++			   uint8_t irq_index,
++			   uint32_t status);
++
++/**
++ * struct dprtc_attr - Structure representing DPRTC attributes
++ * @id:		DPRTC object ID
++ */
++struct dprtc_attr {
++	int id;
++};
++
++int dprtc_get_attributes(struct fsl_mc_io *mc_io,
++			 uint32_t cmd_flags,
++			 uint16_t token,
++			 struct dprtc_attr *attr);
++
++int dprtc_get_api_version(struct fsl_mc_io *mc_io,
++			  uint32_t cmd_flags,
++			  uint16_t *major_ver,
++			  uint16_t *minor_ver);
++
++#endif /* __FSL_DPRTC_H */
+--- /dev/null
++++ b/drivers/staging/fsl-dpaa2/rtc/rtc.c
+@@ -0,0 +1,242 @@
++/* Copyright 2013-2015 Freescale Semiconductor Inc.
++ *
++ * 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.
++ *
++ *
++ * 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.
++ */
++
++#include <linux/module.h>
++#include <linux/ptp_clock_kernel.h>
++
++#include <linux/fsl/mc.h>
++
++#include "dprtc.h"
++#include "dprtc-cmd.h"
++
++#define N_EXT_TS	2
++
++struct ptp_clock *clock;
++struct fsl_mc_device *rtc_mc_dev;
++u32 freqCompensation;
++
++/* PTP clock operations */
++static int ptp_dpaa2_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
++{
++	u64 adj;
++	u32 diff, tmr_add;
++	int neg_adj = 0;
++	int err = 0;
++	struct fsl_mc_device *mc_dev = rtc_mc_dev;
++	struct device *dev = &mc_dev->dev;
++
++	if (ppb < 0) {
++		neg_adj = 1;
++		ppb = -ppb;
++	}
++
++	tmr_add = freqCompensation;
++	adj = tmr_add;
++	adj *= ppb;
++	diff = div_u64(adj, 1000000000ULL);
++
++	tmr_add = neg_adj ? tmr_add - diff : tmr_add + diff;
++
++	err = dprtc_set_freq_compensation(mc_dev->mc_io, 0,
++					  mc_dev->mc_handle, tmr_add);
++	if (err)
++		dev_err(dev, "dprtc_set_freq_compensation err %d\n", err);
++	return 0;
++}
++
++static int ptp_dpaa2_adjtime(struct ptp_clock_info *ptp, s64 delta)
++{
++	s64 now;
++	int err = 0;
++	struct fsl_mc_device *mc_dev = rtc_mc_dev;
++	struct device *dev = &mc_dev->dev;
++
++	err = dprtc_get_time(mc_dev->mc_io, 0, mc_dev->mc_handle, &now);
++	if (err) {
++		dev_err(dev, "dprtc_get_time err %d\n", err);
++		return 0;
++	}
++
++	now += delta;
++
++	err = dprtc_set_time(mc_dev->mc_io, 0, mc_dev->mc_handle, now);
++	if (err) {
++		dev_err(dev, "dprtc_set_time err %d\n", err);
++		return 0;
++	}
++	return 0;
++}
++
++static int ptp_dpaa2_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
++{
++	u64 ns;
++	u32 remainder;
++	int err = 0;
++	struct fsl_mc_device *mc_dev = rtc_mc_dev;
++	struct device *dev = &mc_dev->dev;
++
++	err = dprtc_get_time(mc_dev->mc_io, 0, mc_dev->mc_handle, &ns);
++	if (err) {
++		dev_err(dev, "dprtc_get_time err %d\n", err);
++		return 0;
++	}
++
++	ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);
++	ts->tv_nsec = remainder;
++	return 0;
++}
++
++static int ptp_dpaa2_settime(struct ptp_clock_info *ptp,
++			       const struct timespec *ts)
++{
++	u64 ns;
++	int err = 0;
++	struct fsl_mc_device *mc_dev = rtc_mc_dev;
++	struct device *dev = &mc_dev->dev;
++
++	ns = ts->tv_sec * 1000000000ULL;
++	ns += ts->tv_nsec;
++
++	err = dprtc_set_time(mc_dev->mc_io, 0, mc_dev->mc_handle, ns);
++	if (err)
++		dev_err(dev, "dprtc_set_time err %d\n", err);
++	return 0;
++}
++
++static struct ptp_clock_info ptp_dpaa2_caps = {
++	.owner		= THIS_MODULE,
++	.name		= "dpaa2 clock",
++	.max_adj	= 512000,
++	.n_alarm	= 0,
++	.n_ext_ts	= N_EXT_TS,
++	.n_per_out	= 0,
++	.n_pins		= 0,
++	.pps		= 1,
++	.adjfreq	= ptp_dpaa2_adjfreq,
++	.adjtime	= ptp_dpaa2_adjtime,
++	.gettime64	= ptp_dpaa2_gettime,
++	.settime64	= ptp_dpaa2_settime,
++};
++
++static int rtc_probe(struct fsl_mc_device *mc_dev)
++{
++	struct device		*dev;
++	int			err = 0;
++	int			dpaa2_phc_index;
++	u32			tmr_add = 0;
++
++	if (!mc_dev)
++		return -EFAULT;
++
++	dev = &mc_dev->dev;
++
++	err = fsl_mc_portal_allocate(mc_dev, 0, &mc_dev->mc_io);
++	if (unlikely(err)) {
++		dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
++		goto err_exit;
++	}
++	if (!mc_dev->mc_io) {
++		dev_err(dev,
++			"fsl_mc_portal_allocate returned null handle but no error\n");
++		err = -EFAULT;
++		goto err_exit;
++	}
++
++	err = dprtc_open(mc_dev->mc_io, 0, mc_dev->obj_desc.id,
++			 &mc_dev->mc_handle);
++	if (err) {
++		dev_err(dev, "dprtc_open err %d\n", err);
++		goto err_free_mcp;
++	}
++	if (!mc_dev->mc_handle) {
++		dev_err(dev, "dprtc_open returned null handle but no error\n");
++		err = -EFAULT;
++		goto err_free_mcp;
++	}
++
++	rtc_mc_dev = mc_dev;
++
++	err = dprtc_get_freq_compensation(mc_dev->mc_io, 0,
++					  mc_dev->mc_handle, &tmr_add);
++	if (err) {
++		dev_err(dev, "dprtc_get_freq_compensation err %d\n", err);
++		goto err_close;
++	}
++	freqCompensation = tmr_add;
++
++	clock = ptp_clock_register(&ptp_dpaa2_caps, dev);
++	if (IS_ERR(clock)) {
++		err = PTR_ERR(clock);
++		goto err_close;
++	}
++	dpaa2_phc_index = ptp_clock_index(clock);
++
++	return 0;
++err_close:
++	dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
++err_free_mcp:
++	fsl_mc_portal_free(mc_dev->mc_io);
++err_exit:
++	return err;
++}
++
++static int rtc_remove(struct fsl_mc_device *mc_dev)
++{
++	ptp_clock_unregister(clock);
++	dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
++	fsl_mc_portal_free(mc_dev->mc_io);
++
++	return 0;
++}
++
++static const struct fsl_mc_device_id rtc_match_id_table[] = {
++	{
++		.vendor = FSL_MC_VENDOR_FREESCALE,
++		.obj_type = "dprtc",
++	},
++	{}
++};
++
++static struct fsl_mc_driver rtc_drv = {
++	.driver = {
++		.name		= KBUILD_MODNAME,
++		.owner		= THIS_MODULE,
++	},
++	.probe		= rtc_probe,
++	.remove		= rtc_remove,
++	.match_id_table = rtc_match_id_table,
++};
++
++module_fsl_mc_driver(rtc_drv);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("DPAA2 RTC (PTP 1588 clock) driver (prototype)");