layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

1 files changed, 765 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0157-staging-fsl-dpaa2-mac-Add-Freescale-DPAA2-mac-driver.patch b/target/linux/layerscape/patches-5.4/701-net-0157-staging-fsl-dpaa2-mac-Add-Freescale-DPAA2-mac-driver.patch
new file mode 100644
index 0000000000..750c6ce317
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0157-staging-fsl-dpaa2-mac-Add-Freescale-DPAA2-mac-driver.patch
@@ -0,0 +1,765 @@
+From 50ba3c63dc3f4fbeac32fc5675a00756723d786d Mon Sep 17 00:00:00 2001
+From: Bogdan Purcareata <bogdan.purcareata@nxp.com>
+Date: Wed, 12 Apr 2017 12:42:07 +0000
+Subject: [PATCH] staging: fsl-dpaa2/mac: Add Freescale DPAA2 mac driver
+
+Introduce the DPAA2 mac driver, which manages Datapath
+Media Access Control (DPMAC) objects discovered on the
+MC bus.
+
+This driver works as a proxy between phylib including phy
+drivers and the Management Complex firmware. It receives
+updates on link state changes from PHY lib and forwards
+them to the Management Complex and receives interrupts
+from the Management Complex whenever a request is made to
+change the link state.
+
+This is a squashed commit containing contributions of the
+following owners:
+Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
+Signed-off-by: Bogdan Hamciuc <bogdan.hamciuc@nxp.com>
+Signed-off-by: Razvan Stefanescu <razvan.stefanescu@nxp.com>
+Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
+Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
+Signed-off-by: Itai Katz <itai.katz@freescale.com>
+
+Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
+---
+ drivers/staging/fsl-dpaa2/Kconfig      |   2 +
+ drivers/staging/fsl-dpaa2/Makefile     |   1 +
+ drivers/staging/fsl-dpaa2/mac/Kconfig  |  23 ++
+ drivers/staging/fsl-dpaa2/mac/Makefile |  10 +
+ drivers/staging/fsl-dpaa2/mac/mac.c    | 670 +++++++++++++++++++++++++++++++++
+ 5 files changed, 706 insertions(+)
+ create mode 100644 drivers/staging/fsl-dpaa2/mac/Kconfig
+ create mode 100644 drivers/staging/fsl-dpaa2/mac/Makefile
+ create mode 100644 drivers/staging/fsl-dpaa2/mac/mac.c
+
+--- a/drivers/staging/fsl-dpaa2/Kconfig
++++ b/drivers/staging/fsl-dpaa2/Kconfig
+@@ -17,3 +17,5 @@ config FSL_DPAA2_ETHSW
+ 	help
+ 	  Driver for Freescale DPAA2 Ethernet Switch. Select
+ 	  BRIDGE to have support for bridge tools.
++
++source "drivers/staging/fsl-dpaa2/mac/Kconfig"
+--- a/drivers/staging/fsl-dpaa2/Makefile
++++ b/drivers/staging/fsl-dpaa2/Makefile
+@@ -4,3 +4,4 @@
+ #
+ 
+ obj-$(CONFIG_FSL_DPAA2_ETHSW)		+= ethsw/
++obj-$(CONFIG_FSL_DPAA2_MAC)		+= mac/
+--- /dev/null
++++ b/drivers/staging/fsl-dpaa2/mac/Kconfig
+@@ -0,0 +1,23 @@
++config FSL_DPAA2_MAC
++	tristate "DPAA2 MAC / PHY interface"
++	depends on FSL_MC_BUS && FSL_DPAA2
++	select MDIO_BUS_MUX_MMIOREG
++	select FSL_XGMAC_MDIO
++	select FIXED_PHY
++	---help---
++	Prototype driver for DPAA2 MAC / PHY interface object.
++	This driver works as a proxy between phylib including phy drivers and
++	the MC firmware.  It receives updates on link state changes from PHY
++	lib and forwards them to MC and receives interrupt from MC whenever
++	a request is made to change the link state.
++
++
++config FSL_DPAA2_MAC_NETDEVS
++	bool "Expose net interfaces for PHYs"
++	default n
++	depends on FSL_DPAA2_MAC
++	---help---
++	Exposes macX net interfaces which allow direct control over MACs and
++	PHYs.
++	.
++	Leave disabled if unsure.
+--- /dev/null
++++ b/drivers/staging/fsl-dpaa2/mac/Makefile
+@@ -0,0 +1,10 @@
++
++obj-$(CONFIG_FSL_DPAA2_MAC) += dpaa2-mac.o
++
++dpaa2-mac-objs := mac.o dpmac.o
++
++all:
++	make -C /lib/modules/$(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/mac/mac.c
+@@ -0,0 +1,670 @@
++/* Copyright 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 Freescale Semiconductor nor the
++ *	 names of its 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 Freescale Semiconductor ``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 Freescale Semiconductor 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/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/msi.h>
++#include <linux/rtnetlink.h>
++#include <linux/if_vlan.h>
++
++#include <uapi/linux/if_bridge.h>
++#include <net/netlink.h>
++
++#include <linux/of.h>
++#include <linux/of_mdio.h>
++#include <linux/of_net.h>
++#include <linux/phy.h>
++#include <linux/phy_fixed.h>
++
++#include "../../fsl-mc/include/mc.h"
++#include "../../fsl-mc/include/mc-sys.h"
++
++#include "dpmac.h"
++#include "dpmac-cmd.h"
++
++struct dpaa2_mac_priv {
++	struct net_device		*netdev;
++	struct fsl_mc_device		*mc_dev;
++	struct dpmac_attr		attr;
++	struct dpmac_link_state		old_state;
++};
++
++/* TODO: fix the 10G modes, mapping can't be right:
++ *  XGMII is paralel
++ *  XAUI is serial, using 8b/10b encoding
++ *  XFI is also serial but using 64b/66b encoding
++ * they can't all map to XGMII...
++ *
++ * This must be kept in sync with enum dpmac_eth_if.
++ */
++static phy_interface_t dpaa2_mac_iface_mode[] =  {
++	PHY_INTERFACE_MODE_MII,		/* DPMAC_ETH_IF_MII */
++	PHY_INTERFACE_MODE_RMII,	/* DPMAC_ETH_IF_RMII */
++	PHY_INTERFACE_MODE_SMII,	/* DPMAC_ETH_IF_SMII */
++	PHY_INTERFACE_MODE_GMII,	/* DPMAC_ETH_IF_GMII */
++	PHY_INTERFACE_MODE_RGMII,	/* DPMAC_ETH_IF_RGMII */
++	PHY_INTERFACE_MODE_SGMII,	/* DPMAC_ETH_IF_SGMII */
++	PHY_INTERFACE_MODE_QSGMII,	/* DPMAC_ETH_IF_QSGMII */
++	PHY_INTERFACE_MODE_XGMII,	/* DPMAC_ETH_IF_XAUI */
++	PHY_INTERFACE_MODE_XGMII,	/* DPMAC_ETH_IF_XFI */
++};
++
++static void dpaa2_mac_link_changed(struct net_device *netdev)
++{
++	struct phy_device	*phydev;
++	struct dpmac_link_state	state = { 0 };
++	struct dpaa2_mac_priv	*priv = netdev_priv(netdev);
++	int			err;
++
++	/* the PHY just notified us of link state change */
++	phydev = netdev->phydev;
++
++	state.up = !!phydev->link;
++	if (phydev->link) {
++		state.rate = phydev->speed;
++
++		if (!phydev->duplex)
++			state.options |= DPMAC_LINK_OPT_HALF_DUPLEX;
++		if (phydev->autoneg)
++			state.options |= DPMAC_LINK_OPT_AUTONEG;
++
++		netif_carrier_on(netdev);
++	} else {
++		netif_carrier_off(netdev);
++	}
++
++	if (priv->old_state.up != state.up ||
++	    priv->old_state.rate != state.rate ||
++	    priv->old_state.options != state.options) {
++		priv->old_state = state;
++		phy_print_status(phydev);
++	}
++
++	/* We must interrogate MC at all times, because we don't know
++	 * when and whether a potential DPNI may have read the link state.
++	 */
++	err = dpmac_set_link_state(priv->mc_dev->mc_io, 0,
++				   priv->mc_dev->mc_handle, &state);
++	if (unlikely(err))
++		dev_err(&priv->mc_dev->dev, "dpmac_set_link_state: %d\n", err);
++}
++
++#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
++static netdev_tx_t dpaa2_mac_drop_frame(struct sk_buff *skb,
++					struct net_device *dev)
++{
++	/* we don't support I/O for now, drop the frame */
++	dev_kfree_skb_any(skb);
++	return NETDEV_TX_OK;
++}
++
++static int dpaa2_mac_open(struct net_device *netdev)
++{
++	/* start PHY state machine */
++	phy_start(netdev->phydev);
++
++	return 0;
++}
++
++static int dpaa2_mac_stop(struct net_device *netdev)
++{
++	if (!netdev->phydev)
++		goto done;
++
++	/* stop PHY state machine */
++	phy_stop(netdev->phydev);
++
++	/* signal link down to firmware */
++	netdev->phydev->link = 0;
++	dpaa2_mac_link_changed(netdev);
++
++done:
++	return 0;
++}
++
++static int dpaa2_mac_get_settings(struct net_device *netdev,
++				  struct ethtool_cmd *cmd)
++{
++	return phy_ethtool_gset(netdev->phydev, cmd);
++}
++
++static int dpaa2_mac_set_settings(struct net_device *netdev,
++				  struct ethtool_cmd *cmd)
++{
++	return phy_ethtool_sset(netdev->phydev, cmd);
++}
++
++static void dpaa2_mac_get_stats(struct net_device *netdev,
++				struct rtnl_link_stats64 *storage)
++{
++	struct dpaa2_mac_priv	*priv = netdev_priv(netdev);
++	u64			tmp;
++	int			err;
++
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_EGR_MCAST_FRAME,
++				&storage->tx_packets);
++	if (err)
++		goto error;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_EGR_BCAST_FRAME, &tmp);
++	if (err)
++		goto error;
++	storage->tx_packets += tmp;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_EGR_UCAST_FRAME, &tmp);
++	if (err)
++		goto error;
++	storage->tx_packets += tmp;
++
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_EGR_UNDERSIZED, &storage->tx_dropped);
++	if (err)
++		goto error;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_EGR_BYTE, &storage->tx_bytes);
++	if (err)
++		goto error;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_EGR_ERR_FRAME, &storage->tx_errors);
++	if (err)
++		goto error;
++
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_ING_ALL_FRAME, &storage->rx_packets);
++	if (err)
++		goto error;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_ING_MCAST_FRAME, &storage->multicast);
++	if (err)
++		goto error;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_ING_FRAME_DISCARD,
++				&storage->rx_dropped);
++	if (err)
++		goto error;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_ING_ALIGN_ERR, &storage->rx_errors);
++	if (err)
++		goto error;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_ING_OVERSIZED, &tmp);
++	if (err)
++		goto error;
++	storage->rx_errors += tmp;
++	err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
++				DPMAC_CNT_ING_BYTE, &storage->rx_bytes);
++	if (err)
++		goto error;
++
++	return;
++error:
++	netdev_err(netdev, "dpmac_get_counter err %d\n", err);
++}
++
++static struct {
++	enum dpmac_counter id;
++	char name[ETH_GSTRING_LEN];
++} dpaa2_mac_counters[] =  {
++	{DPMAC_CNT_ING_ALL_FRAME,		"rx all frames"},
++	{DPMAC_CNT_ING_GOOD_FRAME,		"rx frames ok"},
++	{DPMAC_CNT_ING_ERR_FRAME,		"rx frame errors"},
++	{DPMAC_CNT_ING_FRAME_DISCARD,		"rx frame discards"},
++	{DPMAC_CNT_ING_UCAST_FRAME,		"rx u-cast"},
++	{DPMAC_CNT_ING_BCAST_FRAME,		"rx b-cast"},
++	{DPMAC_CNT_ING_MCAST_FRAME,		"rx m-cast"},
++	{DPMAC_CNT_ING_FRAME_64,		"rx 64 bytes"},
++	{DPMAC_CNT_ING_FRAME_127,		"rx 65-127 bytes"},
++	{DPMAC_CNT_ING_FRAME_255,		"rx 128-255 bytes"},
++	{DPMAC_CNT_ING_FRAME_511,		"rx 256-511 bytes"},
++	{DPMAC_CNT_ING_FRAME_1023,		"rx 512-1023 bytes"},
++	{DPMAC_CNT_ING_FRAME_1518,		"rx 1024-1518 bytes"},
++	{DPMAC_CNT_ING_FRAME_1519_MAX,		"rx 1519-max bytes"},
++	{DPMAC_CNT_ING_FRAG,			"rx frags"},
++	{DPMAC_CNT_ING_JABBER,			"rx jabber"},
++	{DPMAC_CNT_ING_ALIGN_ERR,		"rx align errors"},
++	{DPMAC_CNT_ING_OVERSIZED,		"rx oversized"},
++	{DPMAC_CNT_ING_VALID_PAUSE_FRAME,	"rx pause"},
++	{DPMAC_CNT_ING_BYTE,			"rx bytes"},
++	{DPMAC_CNT_ENG_GOOD_FRAME,		"tx frames ok"},
++	{DPMAC_CNT_EGR_UCAST_FRAME,		"tx u-cast"},
++	{DPMAC_CNT_EGR_MCAST_FRAME,		"tx m-cast"},
++	{DPMAC_CNT_EGR_BCAST_FRAME,		"tx b-cast"},
++	{DPMAC_CNT_EGR_ERR_FRAME,		"tx frame errors"},
++	{DPMAC_CNT_EGR_UNDERSIZED,		"tx undersized"},
++	{DPMAC_CNT_EGR_VALID_PAUSE_FRAME,	"tx b-pause"},
++	{DPMAC_CNT_EGR_BYTE,			"tx bytes"},
++
++};
++
++static void dpaa2_mac_get_strings(struct net_device *netdev,
++				  u32 stringset, u8 *data)
++{
++	int i;
++
++	switch (stringset) {
++	case ETH_SS_STATS:
++		for (i = 0; i < ARRAY_SIZE(dpaa2_mac_counters); i++)
++			memcpy(data + i * ETH_GSTRING_LEN,
++			       dpaa2_mac_counters[i].name,
++			       ETH_GSTRING_LEN);
++		break;
++	}
++}
++
++static void dpaa2_mac_get_ethtool_stats(struct net_device *netdev,
++					struct ethtool_stats *stats,
++					u64 *data)
++{
++	struct dpaa2_mac_priv	*priv = netdev_priv(netdev);
++	int			i;
++	int			err;
++
++	for (i = 0; i < ARRAY_SIZE(dpaa2_mac_counters); i++) {
++		err = dpmac_get_counter(priv->mc_dev->mc_io,
++					0,
++					priv->mc_dev->mc_handle,
++					dpaa2_mac_counters[i].id, &data[i]);
++		if (err)
++			netdev_err(netdev, "dpmac_get_counter[%s] err %d\n",
++				   dpaa2_mac_counters[i].name, err);
++	}
++}
++
++static int dpaa2_mac_get_sset_count(struct net_device *dev, int sset)
++{
++	switch (sset) {
++	case ETH_SS_STATS:
++		return ARRAY_SIZE(dpaa2_mac_counters);
++	default:
++		return -EOPNOTSUPP;
++	}
++}
++
++static const struct net_device_ops dpaa2_mac_ndo_ops = {
++	.ndo_start_xmit		= &dpaa2_mac_drop_frame,
++	.ndo_open		= &dpaa2_mac_open,
++	.ndo_stop		= &dpaa2_mac_stop,
++	.ndo_get_stats64	= &dpaa2_mac_get_stats,
++};
++
++static const struct ethtool_ops dpaa2_mac_ethtool_ops = {
++	.get_settings		= &dpaa2_mac_get_settings,
++	.set_settings		= &dpaa2_mac_set_settings,
++	.get_strings		= &dpaa2_mac_get_strings,
++	.get_ethtool_stats	= &dpaa2_mac_get_ethtool_stats,
++	.get_sset_count		= &dpaa2_mac_get_sset_count,
++};
++#endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
++
++static void configure_link(struct dpaa2_mac_priv *priv,
++			   struct dpmac_link_cfg *cfg)
++{
++	struct phy_device *phydev = priv->netdev->phydev;
++
++	if (unlikely(!phydev))
++		return;
++
++	phydev->speed = cfg->rate;
++	phydev->duplex  = !!(cfg->options & DPMAC_LINK_OPT_HALF_DUPLEX);
++
++	if (cfg->options & DPMAC_LINK_OPT_AUTONEG) {
++		phydev->autoneg = 1;
++		phydev->advertising |= ADVERTISED_Autoneg;
++	} else {
++		phydev->autoneg = 0;
++		phydev->advertising &= ~ADVERTISED_Autoneg;
++	}
++
++	phy_start_aneg(phydev);
++}
++
++static irqreturn_t dpaa2_mac_irq_handler(int irq_num, void *arg)
++{
++	struct device *dev = (struct device *)arg;
++	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
++	struct dpaa2_mac_priv *priv = dev_get_drvdata(dev);
++	struct dpmac_link_cfg link_cfg;
++	u32 status;
++	int err;
++
++	err = dpmac_get_irq_status(mc_dev->mc_io, 0, mc_dev->mc_handle,
++				   DPMAC_IRQ_INDEX, &status);
++	if (unlikely(err || !status))
++		return IRQ_NONE;
++
++	/* DPNI-initiated link configuration; 'ifconfig up' also calls this */
++	if (status & DPMAC_IRQ_EVENT_LINK_CFG_REQ) {
++		err = dpmac_get_link_cfg(mc_dev->mc_io, 0, mc_dev->mc_handle,
++					 &link_cfg);
++		if (unlikely(err))
++			goto out;
++
++		configure_link(priv, &link_cfg);
++	}
++
++out:
++	dpmac_clear_irq_status(mc_dev->mc_io, 0, mc_dev->mc_handle,
++			       DPMAC_IRQ_INDEX, status);
++
++	return IRQ_HANDLED;
++}
++
++static int setup_irqs(struct fsl_mc_device *mc_dev)
++{
++	int err = 0;
++	struct fsl_mc_device_irq *irq;
++
++	err = fsl_mc_allocate_irqs(mc_dev);
++	if (err) {
++		dev_err(&mc_dev->dev, "fsl_mc_allocate_irqs err %d\n", err);
++		return err;
++	}
++
++	irq = mc_dev->irqs[0];
++	err = devm_request_threaded_irq(&mc_dev->dev, irq->msi_desc->irq,
++					NULL, &dpaa2_mac_irq_handler,
++					IRQF_NO_SUSPEND | IRQF_ONESHOT,
++					dev_name(&mc_dev->dev), &mc_dev->dev);
++	if (err) {
++		dev_err(&mc_dev->dev, "devm_request_threaded_irq err %d\n",
++			err);
++		goto free_irq;
++	}
++
++	err = dpmac_set_irq_mask(mc_dev->mc_io, 0, mc_dev->mc_handle,
++				 DPMAC_IRQ_INDEX, DPMAC_IRQ_EVENT_LINK_CFG_REQ);
++	if (err) {
++		dev_err(&mc_dev->dev, "dpmac_set_irq_mask err %d\n", err);
++		goto free_irq;
++	}
++	err = dpmac_set_irq_enable(mc_dev->mc_io, 0, mc_dev->mc_handle,
++				   DPMAC_IRQ_INDEX, 1);
++	if (err) {
++		dev_err(&mc_dev->dev, "dpmac_set_irq_enable err %d\n", err);
++		goto free_irq;
++	}
++
++	return 0;
++
++free_irq:
++	fsl_mc_free_irqs(mc_dev);
++
++	return err;
++}
++
++static void teardown_irqs(struct fsl_mc_device *mc_dev)
++{
++	int err;
++
++	err = dpmac_set_irq_enable(mc_dev->mc_io, 0, mc_dev->mc_handle,
++				   DPMAC_IRQ_INDEX, 0);
++	if (err)
++		dev_err(&mc_dev->dev, "dpmac_set_irq_enable err %d\n", err);
++
++	fsl_mc_free_irqs(mc_dev);
++}
++
++static struct device_node *find_dpmac_node(struct device *dev, u16 dpmac_id)
++{
++	struct device_node *dpmacs, *dpmac = NULL;
++	struct device_node *mc_node = dev->of_node;
++	u32 id;
++	int err;
++
++	dpmacs = of_find_node_by_name(mc_node, "dpmacs");
++	if (!dpmacs) {
++		dev_err(dev, "No dpmacs subnode in device-tree\n");
++		return NULL;
++	}
++
++	while ((dpmac = of_get_next_child(dpmacs, dpmac))) {
++		err = of_property_read_u32(dpmac, "reg", &id);
++		if (err)
++			continue;
++		if (id == dpmac_id)
++			return dpmac;
++	}
++
++	return NULL;
++}
++
++static int dpaa2_mac_probe(struct fsl_mc_device *mc_dev)
++{
++	struct device		*dev;
++	struct dpaa2_mac_priv	*priv = NULL;
++	struct device_node	*phy_node, *dpmac_node;
++	struct net_device	*netdev;
++	phy_interface_t		if_mode;
++	int			err = 0;
++
++	dev = &mc_dev->dev;
++
++	/* prepare a net_dev structure to make the phy lib API happy */
++	netdev = alloc_etherdev(sizeof(*priv));
++	if (!netdev) {
++		dev_err(dev, "alloc_etherdev error\n");
++		err = -ENOMEM;
++		goto err_exit;
++	}
++	priv = netdev_priv(netdev);
++	priv->mc_dev = mc_dev;
++	priv->netdev = netdev;
++
++	SET_NETDEV_DEV(netdev, dev);
++
++#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
++	snprintf(netdev->name, IFNAMSIZ, "mac%d", mc_dev->obj_desc.id);
++#endif
++
++	dev_set_drvdata(dev, priv);
++
++	err = fsl_mc_portal_allocate(mc_dev, 0, &mc_dev->mc_io);
++	if (err || !mc_dev->mc_io) {
++		dev_err(dev, "fsl_mc_portal_allocate error: %d\n", err);
++		err = -ENODEV;
++		goto err_free_netdev;
++	}
++
++	err = dpmac_open(mc_dev->mc_io, 0, mc_dev->obj_desc.id,
++			 &mc_dev->mc_handle);
++	if (err || !mc_dev->mc_handle) {
++		dev_err(dev, "dpmac_open error: %d\n", err);
++		err = -ENODEV;
++		goto err_free_mcp;
++	}
++
++	err = dpmac_get_attributes(mc_dev->mc_io, 0,
++				   mc_dev->mc_handle, &priv->attr);
++	if (err) {
++		dev_err(dev, "dpmac_get_attributes err %d\n", err);
++		err = -EINVAL;
++		goto err_close;
++	}
++
++	/* Look up the DPMAC node in the device-tree. */
++	dpmac_node = find_dpmac_node(dev, priv->attr.id);
++	if (!dpmac_node) {
++		dev_err(dev, "No dpmac@%d subnode found.\n", priv->attr.id);
++		err = -ENODEV;
++		goto err_close;
++	}
++
++	err = setup_irqs(mc_dev);
++	if (err) {
++		err = -EFAULT;
++		goto err_close;
++	}
++
++#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
++	/* OPTIONAL, register netdev just to make it visible to the user */
++	netdev->netdev_ops = &dpaa2_mac_ndo_ops;
++	netdev->ethtool_ops = &dpaa2_mac_ethtool_ops;
++
++	/* phy starts up enabled so netdev should be up too */
++	netdev->flags |= IFF_UP;
++
++	err = register_netdev(priv->netdev);
++	if (err < 0) {
++		dev_err(dev, "register_netdev error %d\n", err);
++		err = -ENODEV;
++		goto err_free_irq;
++	}
++#endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
++
++	/* probe the PHY as a fixed-link if the link type declared in DPC
++	 * explicitly mandates this
++	 */
++	if (priv->attr.link_type == DPMAC_LINK_TYPE_FIXED)
++		goto probe_fixed_link;
++
++	if (priv->attr.eth_if < ARRAY_SIZE(dpaa2_mac_iface_mode)) {
++		if_mode = dpaa2_mac_iface_mode[priv->attr.eth_if];
++		dev_dbg(dev, "\tusing if mode %s for eth_if %d\n",
++			phy_modes(if_mode), priv->attr.eth_if);
++	} else {
++		dev_warn(dev, "Unexpected interface mode %d, will probe as fixed link\n",
++			 priv->attr.eth_if);
++		goto probe_fixed_link;
++	}
++
++	/* try to connect to the PHY */
++	phy_node = of_parse_phandle(dpmac_node, "phy-handle", 0);
++	if (!phy_node) {
++		if (!phy_node) {
++			dev_err(dev, "dpmac node has no phy-handle property\n");
++			err = -ENODEV;
++			goto err_no_phy;
++		}
++	}
++	netdev->phydev = of_phy_connect(netdev, phy_node,
++					&dpaa2_mac_link_changed, 0, if_mode);
++	if (!netdev->phydev) {
++		/* No need for dev_err(); the kernel's loud enough as it is. */
++		dev_dbg(dev, "Can't of_phy_connect() now.\n");
++		/* We might be waiting for the MDIO MUX to probe, so defer
++		 * our own probing.
++		 */
++		err = -EPROBE_DEFER;
++		goto err_defer;
++	}
++	dev_info(dev, "Connected to %s PHY.\n", phy_modes(if_mode));
++
++probe_fixed_link:
++	if (!netdev->phydev) {
++		struct fixed_phy_status status = {
++			.link = 1,
++			/* fixed-phys don't support 10Gbps speed for now */
++			.speed = 1000,
++			.duplex = 1,
++		};
++
++		/* try to register a fixed link phy */
++		netdev->phydev = fixed_phy_register(PHY_POLL, &status, NULL);
++		if (!netdev->phydev || IS_ERR(netdev->phydev)) {
++			dev_err(dev, "error trying to register fixed PHY\n");
++			/* So we don't crash unregister_netdev() later on */
++			netdev->phydev = NULL;
++			err = -EFAULT;
++			goto err_no_phy;
++		}
++		dev_info(dev, "Registered fixed PHY.\n");
++	}
++
++	/* start PHY state machine */
++#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
++	dpaa2_mac_open(netdev);
++#else /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
++	phy_start(netdev->phydev);
++#endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
++	return 0;
++
++err_defer:
++err_no_phy:
++#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
++	unregister_netdev(netdev);
++err_free_irq:
++#endif
++	teardown_irqs(mc_dev);
++err_close:
++	dpmac_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
++err_free_mcp:
++	fsl_mc_portal_free(mc_dev->mc_io);
++err_free_netdev:
++	free_netdev(netdev);
++err_exit:
++	return err;
++}
++
++static int dpaa2_mac_remove(struct fsl_mc_device *mc_dev)
++{
++	struct device		*dev = &mc_dev->dev;
++	struct dpaa2_mac_priv	*priv = dev_get_drvdata(dev);
++
++#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
++	unregister_netdev(priv->netdev);
++#endif
++	teardown_irqs(priv->mc_dev);
++	dpmac_close(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle);
++	fsl_mc_portal_free(priv->mc_dev->mc_io);
++	free_netdev(priv->netdev);
++
++	dev_set_drvdata(dev, NULL);
++	kfree(priv);
++
++	return 0;
++}
++
++static const struct fsl_mc_device_id dpaa2_mac_match_id_table[] = {
++	{
++		.vendor = FSL_MC_VENDOR_FREESCALE,
++		.obj_type = "dpmac",
++	},
++	{ .vendor = 0x0 }
++};
++MODULE_DEVICE_TABLE(fslmc, dpaa2_mac_match_id_table);
++
++static struct fsl_mc_driver dpaa2_mac_drv = {
++	.driver = {
++		.name		= KBUILD_MODNAME,
++		.owner		= THIS_MODULE,
++	},
++	.probe		= dpaa2_mac_probe,
++	.remove		= dpaa2_mac_remove,
++	.match_id_table = dpaa2_mac_match_id_table,
++};
++
++module_fsl_mc_driver(dpaa2_mac_drv);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("DPAA2 PHY proxy interface driver");