Linux v3.16-10959-gf0094b28f303

1 files changed, 0 insertions, 2568 deletions

diff --git a/kernel-arm64.patch b/kernel-arm64.patch
index 0a8b9ea91..919afeb05 100644
--- a/kernel-arm64.patch
+++ b/kernel-arm64.patch
@@ -1,4 +1,3 @@
- .../devicetree/bindings/net/apm-xgene-enet.txt     |  72 ++
  .../devicetree/bindings/pci/xgene-pci.txt          |  52 ++
  MAINTAINERS                                        |  15 +
  arch/arm64/Kconfig                                 |  19 +-
@@ -18,17 +17,6 @@
  arch/arm64/kernel/smp_spin_table.c                 |  21 +-
  drivers/ata/ahci_xgene.c                           |   3 +-
  drivers/irqchip/irq-gic.c                          |  32 +-
- drivers/net/ethernet/Kconfig                       |   1 +
- drivers/net/ethernet/Makefile                      |   1 +
- drivers/net/ethernet/apm/Kconfig                   |   1 +
- drivers/net/ethernet/apm/Makefile                  |   5 +
- drivers/net/ethernet/apm/xgene/Kconfig             |   9 +
- drivers/net/ethernet/apm/xgene/Makefile            |   6 +
- .../net/ethernet/apm/xgene/xgene_enet_ethtool.c    | 125 +++
- drivers/net/ethernet/apm/xgene/xgene_enet_hw.c     | 747 ++++++++++++++++
- drivers/net/ethernet/apm/xgene/xgene_enet_hw.h     | 375 ++++++++
- drivers/net/ethernet/apm/xgene/xgene_enet_main.c   | 962 +++++++++++++++++++++
- drivers/net/ethernet/apm/xgene/xgene_enet_main.h   | 107 +++
  drivers/of/address.c                               | 108 +++
  drivers/of/of_pci.c                                | 136 +++
  drivers/pci/host-bridge.c                          |  18 +-
@@ -44,84 +32,6 @@
  tools/perf/arch/arm64/include/perf_regs.h          |   2 +
  44 files changed, 3992 insertions(+), 73 deletions(-)
 
-diff --git a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
-new file mode 100644
-index 0000000..3e2a295
---- /dev/null
-+++ b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
-@@ -0,0 +1,72 @@
-+APM X-Gene SoC Ethernet nodes
-+
-+Ethernet nodes are defined to describe on-chip ethernet interfaces in
-+APM X-Gene SoC.
-+
-+Required properties:
-+- compatible:		Should be "apm,xgene-enet"
-+- reg: Address and length of the register set for the device. It contains the
-+       information of registers in the same order as described by reg-names
-+- reg-names: Should contain the register set names
-+  "enet_csr":		Ethernet control and status register address space
-+  "ring_csr":		Descriptor ring control and status register address space
-+  "ring_cmd":		Descriptor ring command register address space
-+- interrupts:		Ethernet main interrupt
-+- clocks:		Reference to the clock entry.
-+- local-mac-address:	MAC address assigned to this device
-+- phy-connection-type:	Interface type between ethernet device and PHY device
-+- phy-handle:		Reference to a PHY node connected to this device
-+
-+- mdio: 		Device tree subnode with the following required
-+			properties:
-+
-+	- compatible: Must be "apm,xgene-mdio".
-+	- #address-cells: Must be <1>.
-+	- #size-cells: Must be <0>.
-+
-+	For the phy on the mdio bus, there must be a node with the following
-+	fields:
-+
-+	- compatible: PHY identifier.  Please refer ./phy.txt for the format.
-+	- reg: The ID number for the phy.
-+
-+Optional properties:
-+- status		: Should be "ok" or "disabled" for enabled/disabled.
-+			  Default is "ok".
-+
-+
-+Example:
-+	menetclk: menetclk {
-+		compatible = "apm,xgene-device-clock";
-+		clock-output-names = "menetclk";
-+		status = "ok";
-+	};
-+
-+	menet: ethernet@17020000 {
-+		compatible = "apm,xgene-enet";
-+		status = "disabled";
-+		reg = <0x0 0x17020000 0x0 0xd100>,
-+		      <0x0 0X17030000 0x0 0X400>,
-+		      <0x0 0X10000000 0x0 0X200>;
-+		reg-names = "enet_csr", "ring_csr", "ring_cmd";
-+		interrupts = <0x0 0x3c 0x4>;
-+		clocks = <&menetclk 0>;
-+		local-mac-address = [00 01 73 00 00 01];
-+		phy-connection-type = "rgmii";
-+		phy-handle = <&menetphy>;
-+		mdio {
-+			compatible = "apm,xgene-mdio";
-+			#address-cells = <1>;
-+			#size-cells = <0>;
-+			menetphy: menetphy@3 {
-+				compatible = "ethernet-phy-id001c.c915";
-+				reg = <0x3>;
-+			};
-+
-+		};
-+	};
-+
-+/* Board-specific peripheral configurations */
-+&menet {
-+        status = "ok";
-+};
 diff --git a/Documentation/devicetree/bindings/pci/xgene-pci.txt b/Documentation/devicetree/bindings/pci/xgene-pci.txt
 new file mode 100644
 index 0000000..e19fdb8
@@ -184,21 +94,6 @@ diff --git a/MAINTAINERS b/MAINTAINERS
 index 7e2eb4c..7bf051dd 100644
 --- a/MAINTAINERS
 +++ b/MAINTAINERS
-@@ -719,6 +719,14 @@ S:	Maintained
- F:	drivers/net/appletalk/
- F:	net/appletalk/
- 
-+APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER
-+M:	Iyappan Subramanian <isubramanian@apm.com>
-+M:	Keyur Chudgar <kchudgar@apm.com>
-+M:	Ravi Patel <rapatel@apm.com>
-+S:	Supported
-+F:	drivers/net/ethernet/apm/xgene/
-+F:	Documentation/devicetree/bindings/net/apm-xgene-enet.txt
-+
- APTINA CAMERA SENSOR PLL
- M:	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
- L:	linux-media@vger.kernel.org
 @@ -6880,6 +6888,13 @@ S:	Maintained
  F:	Documentation/devicetree/bindings/pci/host-generic-pci.txt
  F:	drivers/pci/host/pci-host-generic.c
@@ -351,23 +246,6 @@ index 40aa96c..fb2ee54 100644
  	soc {
  		compatible = "simple-bus";
  		#address-cells = <2>;
-@@ -167,14 +172,13 @@
- 				clock-output-names = "ethclk";
- 			};
- 
--			eth8clk: eth8clk {
-+			menetclk: menetclk {
- 				compatible = "apm,xgene-device-clock";
- 				#clock-cells = <1>;
- 				clocks = <&ethclk 0>;
--				clock-names = "eth8clk";
- 				reg = <0x0 0x1702C000 0x0 0x1000>;
- 				reg-names = "csr-reg";
--				clock-output-names = "eth8clk";
-+				clock-output-names = "menetclk";
- 			};
- 
- 			sataphy1clk: sataphy1clk@1f21c000 {
 @@ -270,6 +274,161 @@
  				enable-mask = <0x2>;
  				clock-output-names = "rtcclk";
@@ -539,37 +417,6 @@ index 40aa96c..fb2ee54 100644
  			interrupt-parent = <&gic>;
  			interrupts = <0x0 0x4c 0x4>;
  		};
-@@ -397,5 +556,30 @@
- 			#clock-cells = <1>;
- 			clocks = <&rtcclk 0>;
- 		};
-+
-+		menet: ethernet@17020000 {
-+			compatible = "apm,xgene-enet";
-+			status = "disabled";
-+			reg = <0x0 0x17020000 0x0 0xd100>,
-+			      <0x0 0X17030000 0x0 0X400>,
-+			      <0x0 0X10000000 0x0 0X200>;
-+			reg-names = "enet_csr", "ring_csr", "ring_cmd";
-+			interrupts = <0x0 0x3c 0x4>;
-+			dma-coherent;
-+			clocks = <&menetclk 0>;
-+			local-mac-address = [00 00 00 00 00 00];
-+			phy-connection-type = "rgmii";
-+			phy-handle = <&menetphy>;
-+			mdio {
-+				compatible = "apm,xgene-mdio";
-+				#address-cells = <1>;
-+				#size-cells = <0>;
-+				menetphy: menetphy@3 {
-+					compatible = "ethernet-phy-id001c.c915";
-+					reg = <0x3>;
-+				};
-+
-+			};
-+		};
- 	};
- };
 diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
 index 0b3fcf8..07cb417 100644
 --- a/arch/arm64/include/asm/Kbuild
@@ -988,2421 +835,6 @@ index 4b959e6..c36c7ab55 100644
  }
  
  static int gic_notifier(struct notifier_block *self, unsigned long cmd,	void *v)
-diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
-index edb7186..dc7406c 100644
---- a/drivers/net/ethernet/Kconfig
-+++ b/drivers/net/ethernet/Kconfig
-@@ -24,6 +24,7 @@ source "drivers/net/ethernet/allwinner/Kconfig"
- source "drivers/net/ethernet/alteon/Kconfig"
- source "drivers/net/ethernet/altera/Kconfig"
- source "drivers/net/ethernet/amd/Kconfig"
-+source "drivers/net/ethernet/apm/Kconfig"
- source "drivers/net/ethernet/apple/Kconfig"
- source "drivers/net/ethernet/arc/Kconfig"
- source "drivers/net/ethernet/atheros/Kconfig"
-diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
-index 58de333..224a018 100644
---- a/drivers/net/ethernet/Makefile
-+++ b/drivers/net/ethernet/Makefile
-@@ -10,6 +10,7 @@ obj-$(CONFIG_NET_VENDOR_ALLWINNER) += allwinner/
- obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/
- obj-$(CONFIG_ALTERA_TSE) += altera/
- obj-$(CONFIG_NET_VENDOR_AMD) += amd/
-+obj-$(CONFIG_NET_XGENE) += apm/
- obj-$(CONFIG_NET_VENDOR_APPLE) += apple/
- obj-$(CONFIG_NET_VENDOR_ARC) += arc/
- obj-$(CONFIG_NET_VENDOR_ATHEROS) += atheros/
-diff --git a/drivers/net/ethernet/apm/Kconfig b/drivers/net/ethernet/apm/Kconfig
-new file mode 100644
-index 0000000..ec63d70
---- /dev/null
-+++ b/drivers/net/ethernet/apm/Kconfig
-@@ -0,0 +1 @@
-+source "drivers/net/ethernet/apm/xgene/Kconfig"
-diff --git a/drivers/net/ethernet/apm/Makefile b/drivers/net/ethernet/apm/Makefile
-new file mode 100644
-index 0000000..65ce32a
---- /dev/null
-+++ b/drivers/net/ethernet/apm/Makefile
-@@ -0,0 +1,5 @@
-+#
-+# Makefile for APM X-GENE Ethernet driver.
-+#
-+
-+obj-$(CONFIG_NET_XGENE) += xgene/
-diff --git a/drivers/net/ethernet/apm/xgene/Kconfig b/drivers/net/ethernet/apm/xgene/Kconfig
-new file mode 100644
-index 0000000..616dff6
---- /dev/null
-+++ b/drivers/net/ethernet/apm/xgene/Kconfig
-@@ -0,0 +1,9 @@
-+config NET_XGENE
-+	tristate "APM X-Gene SoC Ethernet Driver"
-+	select PHYLIB
-+	help
-+	  This is the Ethernet driver for the on-chip ethernet interface on the
-+	  APM X-Gene SoC.
-+
-+	  To compile this driver as a module, choose M here. This module will
-+	  be called xgene_enet.
-diff --git a/drivers/net/ethernet/apm/xgene/Makefile b/drivers/net/ethernet/apm/xgene/Makefile
-new file mode 100644
-index 0000000..c643e8a
---- /dev/null
-+++ b/drivers/net/ethernet/apm/xgene/Makefile
-@@ -0,0 +1,6 @@
-+#
-+# Makefile for APM X-Gene Ethernet Driver.
-+#
-+
-+xgene-enet-objs := xgene_enet_hw.o xgene_enet_main.o xgene_enet_ethtool.o
-+obj-$(CONFIG_NET_XGENE) += xgene-enet.o
-diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
-new file mode 100644
-index 0000000..63f2aa5
---- /dev/null
-+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
-@@ -0,0 +1,125 @@
-+/* Applied Micro X-Gene SoC Ethernet Driver
-+ *
-+ * Copyright (c) 2014, Applied Micro Circuits Corporation
-+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
-+ *
-+ * This program is free software; you can redistribute  it and/or modify it
-+ * under  the terms of  the GNU General  Public License as published by the
-+ * Free Software Foundation;  either version 2 of the  License, or (at your
-+ * option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#include <linux/ethtool.h>
-+#include "xgene_enet_main.h"
-+
-+struct xgene_gstrings_stats {
-+	char name[ETH_GSTRING_LEN];
-+	int offset;
-+};
-+
-+#define XGENE_STAT(m) { #m, offsetof(struct xgene_enet_pdata, stats.m) }
-+
-+static const struct xgene_gstrings_stats gstrings_stats[] = {
-+	XGENE_STAT(rx_packets),
-+	XGENE_STAT(tx_packets),
-+	XGENE_STAT(rx_bytes),
-+	XGENE_STAT(tx_bytes),
-+	XGENE_STAT(rx_errors),
-+	XGENE_STAT(tx_errors),
-+	XGENE_STAT(rx_length_errors),
-+	XGENE_STAT(rx_crc_errors),
-+	XGENE_STAT(rx_frame_errors),
-+	XGENE_STAT(rx_fifo_errors)
-+};
-+
-+#define XGENE_STATS_LEN		ARRAY_SIZE(gstrings_stats)
-+
-+static void xgene_get_drvinfo(struct net_device *ndev,
-+			      struct ethtool_drvinfo *info)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct platform_device *pdev = pdata->pdev;
-+
-+	strcpy(info->driver, "xgene_enet");
-+	strcpy(info->version, XGENE_DRV_VERSION);
-+	snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
-+	sprintf(info->bus_info, "%s", pdev->name);
-+}
-+
-+static int xgene_get_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct phy_device *phydev = pdata->phy_dev;
-+
-+	if (phydev == NULL)
-+		return -ENODEV;
-+
-+	return phy_ethtool_gset(phydev, cmd);
-+}
-+
-+static int xgene_set_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct phy_device *phydev = pdata->phy_dev;
-+
-+	if (phydev == NULL)
-+		return -ENODEV;
-+
-+	return phy_ethtool_sset(phydev, cmd);
-+}
-+
-+static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
-+{
-+	int i;
-+	u8 *p = data;
-+
-+	if (stringset != ETH_SS_STATS)
-+		return;
-+
-+	for (i = 0; i < XGENE_STATS_LEN; i++) {
-+		memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
-+		p += ETH_GSTRING_LEN;
-+	}
-+}
-+
-+static int xgene_get_sset_count(struct net_device *ndev, int sset)
-+{
-+	if (sset != ETH_SS_STATS)
-+		return -EINVAL;
-+
-+	return XGENE_STATS_LEN;
-+}
-+
-+static void xgene_get_ethtool_stats(struct net_device *ndev,
-+				    struct ethtool_stats *dummy,
-+				    u64 *data)
-+{
-+	void *pdata = netdev_priv(ndev);
-+	int i;
-+
-+	for (i = 0; i < XGENE_STATS_LEN; i++)
-+		*data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
-+}
-+
-+static const struct ethtool_ops xgene_ethtool_ops = {
-+	.get_drvinfo = xgene_get_drvinfo,
-+	.get_settings = xgene_get_settings,
-+	.set_settings = xgene_set_settings,
-+	.get_link = ethtool_op_get_link,
-+	.get_strings = xgene_get_strings,
-+	.get_sset_count = xgene_get_sset_count,
-+	.get_ethtool_stats = xgene_get_ethtool_stats
-+};
-+
-+void xgene_enet_set_ethtool_ops(struct net_device *ndev)
-+{
-+	ndev->ethtool_ops = &xgene_ethtool_ops;
-+}
-diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
-new file mode 100644
-index 0000000..e52af60
---- /dev/null
-+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
-@@ -0,0 +1,747 @@
-+/* Applied Micro X-Gene SoC Ethernet Driver
-+ *
-+ * Copyright (c) 2014, Applied Micro Circuits Corporation
-+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
-+ *	    Ravi Patel <rapatel@apm.com>
-+ *	    Keyur Chudgar <kchudgar@apm.com>
-+ *
-+ * This program is free software; you can redistribute  it and/or modify it
-+ * under  the terms of  the GNU General  Public License as published by the
-+ * Free Software Foundation;  either version 2 of the  License, or (at your
-+ * option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#include "xgene_enet_main.h"
-+#include "xgene_enet_hw.h"
-+
-+static void xgene_enet_ring_init(struct xgene_enet_desc_ring *ring)
-+{
-+	u32 *ring_cfg = ring->state;
-+	u64 addr = ring->dma;
-+	enum xgene_enet_ring_cfgsize cfgsize = ring->cfgsize;
-+
-+	ring_cfg[4] |= (1 << SELTHRSH_POS) &
-+			CREATE_MASK(SELTHRSH_POS, SELTHRSH_LEN);
-+	ring_cfg[3] |= ACCEPTLERR;
-+	ring_cfg[2] |= QCOHERENT;
-+
-+	addr >>= 8;
-+	ring_cfg[2] |= (addr << RINGADDRL_POS) &
-+			CREATE_MASK_ULL(RINGADDRL_POS, RINGADDRL_LEN);
-+	addr >>= RINGADDRL_LEN;
-+	ring_cfg[3] |= addr & CREATE_MASK_ULL(RINGADDRH_POS, RINGADDRH_LEN);
-+	ring_cfg[3] |= ((u32) cfgsize << RINGSIZE_POS) &
-+			CREATE_MASK(RINGSIZE_POS, RINGSIZE_LEN);
-+}
-+
-+static void xgene_enet_ring_set_type(struct xgene_enet_desc_ring *ring)
-+{
-+	u32 *ring_cfg = ring->state;
-+	bool is_bufpool;
-+	u32 val;
-+
-+	is_bufpool = xgene_enet_is_bufpool(ring->id);
-+	val = (is_bufpool) ? RING_BUFPOOL : RING_REGULAR;
-+	ring_cfg[4] |= (val << RINGTYPE_POS) &
-+			CREATE_MASK(RINGTYPE_POS, RINGTYPE_LEN);
-+
-+	if (is_bufpool) {
-+		ring_cfg[3] |= (BUFPOOL_MODE << RINGMODE_POS) &
-+				CREATE_MASK(RINGMODE_POS, RINGMODE_LEN);
-+	}
-+}
-+
-+static void xgene_enet_ring_set_recombbuf(struct xgene_enet_desc_ring *ring)
-+{
-+	u32 *ring_cfg = ring->state;
-+
-+	ring_cfg[3] |= RECOMBBUF;
-+	ring_cfg[3] |= (0xf << RECOMTIMEOUTL_POS) &
-+			CREATE_MASK(RECOMTIMEOUTL_POS, RECOMTIMEOUTL_LEN);
-+	ring_cfg[4] |= 0x7 & CREATE_MASK(RECOMTIMEOUTH_POS, RECOMTIMEOUTH_LEN);
-+}
-+
-+static void xgene_enet_ring_wr32(struct xgene_enet_desc_ring *ring,
-+				 u32 offset, u32 data)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev);
-+
-+	iowrite32(data, pdata->ring_csr_addr + offset);
-+}
-+
-+static void xgene_enet_ring_rd32(struct xgene_enet_desc_ring *ring,
-+				 u32 offset, u32 *data)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev);
-+
-+	*data = ioread32(pdata->ring_csr_addr + offset);
-+}
-+
-+static void xgene_enet_write_ring_state(struct xgene_enet_desc_ring *ring)
-+{
-+	int i;
-+
-+	xgene_enet_ring_wr32(ring, CSR_RING_CONFIG, ring->num);
-+	for (i = 0; i < NUM_RING_CONFIG; i++) {
-+		xgene_enet_ring_wr32(ring, CSR_RING_WR_BASE + (i * 4),
-+				     ring->state[i]);
-+	}
-+}
-+
-+static void xgene_enet_clr_ring_state(struct xgene_enet_desc_ring *ring)
-+{
-+	memset(ring->state, 0, sizeof(u32) * NUM_RING_CONFIG);
-+	xgene_enet_write_ring_state(ring);
-+}
-+
-+static void xgene_enet_set_ring_state(struct xgene_enet_desc_ring *ring)
-+{
-+	xgene_enet_ring_set_type(ring);
-+
-+	if (xgene_enet_ring_owner(ring->id) == RING_OWNER_ETH0)
-+		xgene_enet_ring_set_recombbuf(ring);
-+
-+	xgene_enet_ring_init(ring);
-+	xgene_enet_write_ring_state(ring);
-+}
-+
-+static void xgene_enet_set_ring_id(struct xgene_enet_desc_ring *ring)
-+{
-+	u32 ring_id_val, ring_id_buf;
-+	bool is_bufpool;
-+
-+	is_bufpool = xgene_enet_is_bufpool(ring->id);
-+
-+	ring_id_val = ring->id & GENMASK(9, 0);
-+	ring_id_val |= OVERWRITE;
-+
-+	ring_id_buf = (ring->num << 9) & GENMASK(18, 9);
-+	ring_id_buf |= PREFETCH_BUF_EN;
-+	if (is_bufpool)
-+		ring_id_buf |= IS_BUFFER_POOL;
-+
-+	xgene_enet_ring_wr32(ring, CSR_RING_ID, ring_id_val);
-+	xgene_enet_ring_wr32(ring, CSR_RING_ID_BUF, ring_id_buf);
-+}
-+
-+static void xgene_enet_clr_desc_ring_id(struct xgene_enet_desc_ring *ring)
-+{
-+	u32 ring_id;
-+
-+	ring_id = ring->id | OVERWRITE;
-+	xgene_enet_ring_wr32(ring, CSR_RING_ID, ring_id);
-+	xgene_enet_ring_wr32(ring, CSR_RING_ID_BUF, 0);
-+}
-+
-+struct xgene_enet_desc_ring *xgene_enet_setup_ring(
-+					struct xgene_enet_desc_ring *ring)
-+{
-+	u32 size = ring->size;
-+	u32 i, data;
-+	u64 *desc;
-+	bool is_bufpool;
-+
-+	xgene_enet_clr_ring_state(ring);
-+	xgene_enet_set_ring_state(ring);
-+	xgene_enet_set_ring_id(ring);
-+
-+	ring->slots = xgene_enet_get_numslots(ring->id, size);
-+
-+	is_bufpool = xgene_enet_is_bufpool(ring->id);
-+	if (is_bufpool || xgene_enet_ring_owner(ring->id) != RING_OWNER_CPU)
-+		return ring;
-+
-+	for (i = 0; i < ring->slots; i++) {
-+		desc = (u64 *)&ring->raw_desc[i];
-+		desc[EMPTY_SLOT_INDEX] = EMPTY_SLOT;
-+	}
-+
-+	xgene_enet_ring_rd32(ring, CSR_RING_NE_INT_MODE, &data);
-+	data |= BIT(31 - xgene_enet_ring_bufnum(ring->id));
-+	xgene_enet_ring_wr32(ring, CSR_RING_NE_INT_MODE, data);
-+
-+	return ring;
-+}
-+
-+void xgene_enet_clear_ring(struct xgene_enet_desc_ring *ring)
-+{
-+	u32 data;
-+	bool is_bufpool;
-+
-+	is_bufpool = xgene_enet_is_bufpool(ring->id);
-+	if (is_bufpool || xgene_enet_ring_owner(ring->id) != RING_OWNER_CPU)
-+		goto out;
-+
-+	xgene_enet_ring_rd32(ring, CSR_RING_NE_INT_MODE, &data);
-+	data &= ~BIT(31 - xgene_enet_ring_bufnum(ring->id));
-+	xgene_enet_ring_wr32(ring, CSR_RING_NE_INT_MODE, data);
-+
-+out:
-+	xgene_enet_clr_desc_ring_id(ring);
-+	xgene_enet_clr_ring_state(ring);
-+}
-+
-+void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring,
-+			    struct xgene_enet_pdata *pdata,
-+			    enum xgene_enet_err_code status)
-+{
-+	struct rtnl_link_stats64 *stats = &pdata->stats;
-+
-+	switch (status) {
-+	case INGRESS_CRC:
-+		stats->rx_crc_errors++;
-+		break;
-+	case INGRESS_CHECKSUM:
-+	case INGRESS_CHECKSUM_COMPUTE:
-+		stats->rx_errors++;
-+		break;
-+	case INGRESS_TRUNC_FRAME:
-+		stats->rx_frame_errors++;
-+		break;
-+	case INGRESS_PKT_LEN:
-+		stats->rx_length_errors++;
-+		break;
-+	case INGRESS_PKT_UNDER:
-+		stats->rx_frame_errors++;
-+		break;
-+	case INGRESS_FIFO_OVERRUN:
-+		stats->rx_fifo_errors++;
-+		break;
-+	default:
-+		break;
-+	}
-+}
-+
-+static void xgene_enet_wr_csr(struct xgene_enet_pdata *pdata,
-+			      u32 offset, u32 val)
-+{
-+	void __iomem *addr = pdata->eth_csr_addr + offset;
-+
-+	iowrite32(val, addr);
-+}
-+
-+static void xgene_enet_wr_ring_if(struct xgene_enet_pdata *pdata,
-+				  u32 offset, u32 val)
-+{
-+	void __iomem *addr = pdata->eth_ring_if_addr + offset;
-+
-+	iowrite32(val, addr);
-+}
-+
-+static void xgene_enet_wr_diag_csr(struct xgene_enet_pdata *pdata,
-+				   u32 offset, u32 val)
-+{
-+	void __iomem *addr = pdata->eth_diag_csr_addr + offset;
-+
-+	iowrite32(val, addr);
-+}
-+
-+static void xgene_enet_wr_mcx_csr(struct xgene_enet_pdata *pdata,
-+				  u32 offset, u32 val)
-+{
-+	void __iomem *addr = pdata->mcx_mac_csr_addr + offset;
-+
-+	iowrite32(val, addr);
-+}
-+
-+static bool xgene_enet_wr_indirect(void __iomem *addr, void __iomem *wr,
-+				   void __iomem *cmd, void __iomem *cmd_done,
-+				   u32 wr_addr, u32 wr_data)
-+{
-+	u32 done;
-+	u8 wait = 10;
-+
-+	iowrite32(wr_addr, addr);
-+	iowrite32(wr_data, wr);
-+	iowrite32(XGENE_ENET_WR_CMD, cmd);
-+
-+	/* wait for write command to complete */
-+	while (!(done = ioread32(cmd_done)) && wait--)
-+		udelay(1);
-+
-+	if (!done)
-+		return false;
-+
-+	iowrite32(0, cmd);
-+
-+	return true;
-+}
-+
-+static void xgene_enet_wr_mcx_mac(struct xgene_enet_pdata *pdata,
-+				  u32 wr_addr, u32 wr_data)
-+{
-+	void __iomem *addr, *wr, *cmd, *cmd_done;
-+	bool ret;
-+
-+	addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
-+	wr = pdata->mcx_mac_addr + MAC_WRITE_REG_OFFSET;
-+	cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
-+	cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
-+
-+	ret = xgene_enet_wr_indirect(addr, wr, cmd, cmd_done, wr_addr, wr_data);
-+	if (!ret)
-+		netdev_err(pdata->ndev, "MCX mac write failed, addr: %04x\n",
-+			   wr_addr);
-+}
-+
-+static void xgene_enet_rd_csr(struct xgene_enet_pdata *pdata,
-+			      u32 offset, u32 *val)
-+{
-+	void __iomem *addr = pdata->eth_csr_addr + offset;
-+
-+	*val = ioread32(addr);
-+}
-+
-+static void xgene_enet_rd_diag_csr(struct xgene_enet_pdata *pdata,
-+				   u32 offset, u32 *val)
-+{
-+	void __iomem *addr = pdata->eth_diag_csr_addr + offset;
-+
-+	*val = ioread32(addr);
-+}
-+
-+static void xgene_enet_rd_mcx_csr(struct xgene_enet_pdata *pdata,
-+				  u32 offset, u32 *val)
-+{
-+	void __iomem *addr = pdata->mcx_mac_csr_addr + offset;
-+
-+	*val = ioread32(addr);
-+}
-+
-+static bool xgene_enet_rd_indirect(void __iomem *addr, void __iomem *rd,
-+				   void __iomem *cmd, void __iomem *cmd_done,
-+				   u32 rd_addr, u32 *rd_data)
-+{
-+	u32 done;
-+	u8 wait = 10;
-+
-+	iowrite32(rd_addr, addr);
-+	iowrite32(XGENE_ENET_RD_CMD, cmd);
-+
-+	/* wait for read command to complete */
-+	while (!(done = ioread32(cmd_done)) && wait--)
-+		udelay(1);
-+
-+	if (!done)
-+		return false;
-+
-+	*rd_data = ioread32(rd);
-+	iowrite32(0, cmd);
-+
-+	return true;
-+}
-+
-+static void xgene_enet_rd_mcx_mac(struct xgene_enet_pdata *pdata,
-+				  u32 rd_addr, u32 *rd_data)
-+{
-+	void __iomem *addr, *rd, *cmd, *cmd_done;
-+	bool ret;
-+
-+	addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
-+	rd = pdata->mcx_mac_addr + MAC_READ_REG_OFFSET;
-+	cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
-+	cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
-+
-+	ret = xgene_enet_rd_indirect(addr, rd, cmd, cmd_done, rd_addr, rd_data);
-+	if (!ret)
-+		netdev_err(pdata->ndev, "MCX mac read failed, addr: %04x\n",
-+			   rd_addr);
-+}
-+
-+static int xgene_mii_phy_write(struct xgene_enet_pdata *pdata, int phy_id,
-+			       u32 reg, u16 data)
-+{
-+	u32 addr = 0, wr_data = 0;
-+	u32 done;
-+	u8 wait = 10;
-+
-+	PHY_ADDR_SET(&addr, phy_id);
-+	REG_ADDR_SET(&addr, reg);
-+	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
-+
-+	PHY_CONTROL_SET(&wr_data, data);
-+	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONTROL_ADDR, wr_data);
-+	do {
-+		usleep_range(5, 10);
-+		xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
-+	} while ((done & BUSY_MASK) && wait--);
-+
-+	if (done & BUSY_MASK) {
-+		netdev_err(pdata->ndev, "MII_MGMT write failed\n");
-+		return -1;
-+	}
-+
-+	return 0;
-+}
-+
-+static int xgene_mii_phy_read(struct xgene_enet_pdata *pdata,
-+			      u8 phy_id, u32 reg)
-+{
-+	u32 addr = 0;
-+	u32 data, done;
-+	u8 wait = 10;
-+
-+	PHY_ADDR_SET(&addr, phy_id);
-+	REG_ADDR_SET(&addr, reg);
-+	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
-+	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, READ_CYCLE_MASK);
-+	do {
-+		usleep_range(5, 10);
-+		xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
-+	} while ((done & BUSY_MASK) && wait--);
-+
-+	if (done & BUSY_MASK) {
-+		netdev_err(pdata->ndev, "MII_MGMT read failed\n");
-+		return -1;
-+	}
-+
-+	xgene_enet_rd_mcx_mac(pdata, MII_MGMT_STATUS_ADDR, &data);
-+	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, 0);
-+
-+	return data;
-+}
-+
-+void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata)
-+{
-+	u32 addr0, addr1;
-+	u8 *dev_addr = pdata->ndev->dev_addr;
-+
-+	addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
-+		(dev_addr[1] << 8) | dev_addr[0];
-+	addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16);
-+	addr1 |= pdata->phy_addr & 0xFFFF;
-+
-+	xgene_enet_wr_mcx_mac(pdata, STATION_ADDR0_ADDR, addr0);
-+	xgene_enet_wr_mcx_mac(pdata, STATION_ADDR1_ADDR, addr1);
-+}
-+
-+static int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata)
-+{
-+	struct net_device *ndev = pdata->ndev;
-+	u32 data;
-+	u8 wait = 10;
-+
-+	xgene_enet_wr_diag_csr(pdata, ENET_CFG_MEM_RAM_SHUTDOWN_ADDR, 0x0);
-+	do {
-+		usleep_range(100, 110);
-+		xgene_enet_rd_diag_csr(pdata, ENET_BLOCK_MEM_RDY_ADDR, &data);
-+	} while ((data != 0xffffffff) && wait--);
-+
-+	if (data != 0xffffffff) {
-+		netdev_err(ndev, "Failed to release memory from shutdown\n");
-+		return -ENODEV;
-+	}
-+
-+	return 0;
-+}
-+
-+void xgene_gmac_reset(struct xgene_enet_pdata *pdata)
-+{
-+	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, SOFT_RESET1);
-+	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, 0);
-+}
-+
-+void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed)
-+{
-+	u32 value, mc2;
-+	u32 intf_ctl, rgmii;
-+	u32 icm0, icm2;
-+
-+	xgene_gmac_reset(pdata);
-+
-+	xgene_enet_rd_mcx_csr(pdata, ICM_CONFIG0_REG_0_ADDR, &icm0);
-+	xgene_enet_rd_mcx_csr(pdata, ICM_CONFIG2_REG_0_ADDR, &icm2);
-+	xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_2_ADDR, &mc2);
-+	xgene_enet_rd_mcx_mac(pdata, INTERFACE_CONTROL_ADDR, &intf_ctl);
-+	xgene_enet_rd_csr(pdata, RGMII_REG_0_ADDR, &rgmii);
-+
-+	switch (speed) {
-+	case SPEED_10:
-+		ENET_INTERFACE_MODE2_SET(&mc2, 1);
-+		CFG_MACMODE_SET(&icm0, 0);
-+		CFG_WAITASYNCRD_SET(&icm2, 500);
-+		rgmii &= ~CFG_SPEED_1250;
-+		break;
-+	case SPEED_100:
-+		ENET_INTERFACE_MODE2_SET(&mc2, 1);
-+		intf_ctl |= ENET_LHD_MODE;
-+		CFG_MACMODE_SET(&icm0, 1);
-+		CFG_WAITASYNCRD_SET(&icm2, 80);
-+		rgmii &= ~CFG_SPEED_1250;
-+		break;
-+	default:
-+		ENET_INTERFACE_MODE2_SET(&mc2, 2);
-+		intf_ctl |= ENET_GHD_MODE;
-+		CFG_TXCLK_MUXSEL0_SET(&rgmii, 4);
-+		xgene_enet_rd_csr(pdata, DEBUG_REG_ADDR, &value);
-+		value |= CFG_BYPASS_UNISEC_TX | CFG_BYPASS_UNISEC_RX;
-+		xgene_enet_wr_csr(pdata, DEBUG_REG_ADDR, value);
-+		break;
-+	}
-+
-+	mc2 |= FULL_DUPLEX2;
-+	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_2_ADDR, mc2);
-+	xgene_enet_wr_mcx_mac(pdata, INTERFACE_CONTROL_ADDR, intf_ctl);
-+
-+	xgene_gmac_set_mac_addr(pdata);
-+
-+	/* Adjust MDC clock frequency */
-+	xgene_enet_rd_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, &value);
-+	MGMT_CLOCK_SEL_SET(&value, 7);
-+	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, value);
-+
-+	/* Enable drop if bufpool not available */
-+	xgene_enet_rd_csr(pdata, RSIF_CONFIG_REG_ADDR, &value);
-+	value |= CFG_RSIF_FPBUFF_TIMEOUT_EN;
-+	xgene_enet_wr_csr(pdata, RSIF_CONFIG_REG_ADDR, value);
-+
-+	/* Rtype should be copied from FP */
-+	xgene_enet_wr_csr(pdata, RSIF_RAM_DBG_REG0_ADDR, 0);
-+	xgene_enet_wr_csr(pdata, RGMII_REG_0_ADDR, rgmii);
-+
-+	/* Rx-Tx traffic resume */
-+	xgene_enet_wr_csr(pdata, CFG_LINK_AGGR_RESUME_0_ADDR, TX_PORT0);
-+
-+	xgene_enet_wr_mcx_csr(pdata, ICM_CONFIG0_REG_0_ADDR, icm0);
-+	xgene_enet_wr_mcx_csr(pdata, ICM_CONFIG2_REG_0_ADDR, icm2);
-+
-+	xgene_enet_rd_mcx_csr(pdata, RX_DV_GATE_REG_0_ADDR, &value);
-+	value &= ~TX_DV_GATE_EN0;
-+	value &= ~RX_DV_GATE_EN0;
-+	value |= RESUME_RX0;
-+	xgene_enet_wr_mcx_csr(pdata, RX_DV_GATE_REG_0_ADDR, value);
-+
-+	xgene_enet_wr_csr(pdata, CFG_BYPASS_ADDR, RESUME_TX);
-+}
-+
-+static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata)
-+{
-+	u32 val = 0xffffffff;
-+
-+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQASSOC_ADDR, val);
-+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPQASSOC_ADDR, val);
-+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEWQASSOC_ADDR, val);
-+	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEFPQASSOC_ADDR, val);
-+}
-+
-+void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata,
-+			   u32 dst_ring_num, u16 bufpool_id)
-+{
-+	u32 cb;
-+	u32 fpsel;
-+
-+	fpsel = xgene_enet_ring_bufnum(bufpool_id) - 0x20;
-+
-+	xgene_enet_rd_csr(pdata, CLE_BYPASS_REG0_0_ADDR, &cb);
-+	cb |= CFG_CLE_BYPASS_EN0;
-+	CFG_CLE_IP_PROTOCOL0_SET(&cb, 3);
-+	xgene_enet_wr_csr(pdata, CLE_BYPASS_REG0_0_ADDR, cb);
-+
-+	xgene_enet_rd_csr(pdata, CLE_BYPASS_REG1_0_ADDR, &cb);
-+	CFG_CLE_DSTQID0_SET(&cb, dst_ring_num);
-+	CFG_CLE_FPSEL0_SET(&cb, fpsel);
-+	xgene_enet_wr_csr(pdata, CLE_BYPASS_REG1_0_ADDR, cb);
-+}
-+
-+void xgene_gmac_rx_enable(struct xgene_enet_pdata *pdata)
-+{
-+	u32 data;
-+
-+	xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
-+	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | RX_EN);
-+}
-+
-+void xgene_gmac_tx_enable(struct xgene_enet_pdata *pdata)
-+{
-+	u32 data;
-+
-+	xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
-+	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | TX_EN);
-+}
-+
-+void xgene_gmac_rx_disable(struct xgene_enet_pdata *pdata)
-+{
-+	u32 data;
-+
-+	xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
-+	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~RX_EN);
-+}
-+
-+void xgene_gmac_tx_disable(struct xgene_enet_pdata *pdata)
-+{
-+	u32 data;
-+
-+	xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
-+	xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~TX_EN);
-+}
-+
-+void xgene_enet_reset(struct xgene_enet_pdata *pdata)
-+{
-+	u32 val;
-+
-+	clk_prepare_enable(pdata->clk);
-+	clk_disable_unprepare(pdata->clk);
-+	clk_prepare_enable(pdata->clk);
-+	xgene_enet_ecc_init(pdata);
-+	xgene_enet_config_ring_if_assoc(pdata);
-+
-+	/* Enable auto-incr for scanning */
-+	xgene_enet_rd_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, &val);
-+	val |= SCAN_AUTO_INCR;
-+	MGMT_CLOCK_SEL_SET(&val, 1);
-+	xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, val);
-+}
-+
-+void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
-+{
-+	clk_disable_unprepare(pdata->clk);
-+}
-+
-+static int xgene_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
-+{
-+	struct xgene_enet_pdata *pdata = bus->priv;
-+	u32 val;
-+
-+	val = xgene_mii_phy_read(pdata, mii_id, regnum);
-+	netdev_dbg(pdata->ndev, "mdio_rd: bus=%d reg=%d val=%x\n",
-+		   mii_id, regnum, val);
-+
-+	return val;
-+}
-+
-+static int xgene_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
-+				 u16 val)
-+{
-+	struct xgene_enet_pdata *pdata = bus->priv;
-+	int ret;
-+
-+	netdev_dbg(pdata->ndev, "mdio_wr: bus=%d reg=%d val=%x\n",
-+		   mii_id, regnum, val);
-+	ret = xgene_mii_phy_write(pdata, mii_id, regnum, val);
-+
-+	return ret;
-+}
-+
-+static void xgene_enet_adjust_link(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct phy_device *phydev = pdata->phy_dev;
-+
-+	if (phydev->link) {
-+		if (pdata->phy_speed != phydev->speed) {
-+			xgene_gmac_init(pdata, phydev->speed);
-+			xgene_gmac_rx_enable(pdata);
-+			xgene_gmac_tx_enable(pdata);
-+			pdata->phy_speed = phydev->speed;
-+			phy_print_status(phydev);
-+		}
-+	} else {
-+		xgene_gmac_rx_disable(pdata);
-+		xgene_gmac_tx_disable(pdata);
-+		pdata->phy_speed = SPEED_UNKNOWN;
-+		phy_print_status(phydev);
-+	}
-+}
-+
-+static int xgene_enet_phy_connect(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct device_node *phy_np;
-+	struct phy_device *phy_dev;
-+	struct device *dev = &pdata->pdev->dev;
-+
-+	phy_np = of_parse_phandle(dev->of_node, "phy-handle", 0);
-+	if (!phy_np) {
-+		netdev_dbg(ndev, "No phy-handle found\n");
-+		return -ENODEV;
-+	}
-+
-+	phy_dev = of_phy_connect(ndev, phy_np, &xgene_enet_adjust_link,
-+				 0, pdata->phy_mode);
-+	if (!phy_dev) {
-+		netdev_err(ndev, "Could not connect to PHY\n");
-+		return  -ENODEV;
-+	}
-+
-+	pdata->phy_speed = SPEED_UNKNOWN;
-+	phy_dev->supported &= ~SUPPORTED_10baseT_Half &
-+			      ~SUPPORTED_100baseT_Half &
-+			      ~SUPPORTED_1000baseT_Half;
-+	phy_dev->advertising = phy_dev->supported;
-+	pdata->phy_dev = phy_dev;
-+
-+	return 0;
-+}
-+
-+int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata)
-+{
-+	struct net_device *ndev = pdata->ndev;
-+	struct device *dev = &pdata->pdev->dev;
-+	struct device_node *child_np;
-+	struct device_node *mdio_np = NULL;
-+	struct mii_bus *mdio_bus;
-+	int ret;
-+
-+	for_each_child_of_node(dev->of_node, child_np) {
-+		if (of_device_is_compatible(child_np, "apm,xgene-mdio")) {
-+			mdio_np = child_np;
-+			break;
-+		}
-+	}
-+
-+	if (!mdio_np) {
-+		netdev_dbg(ndev, "No mdio node in the dts\n");
-+		return -1;
-+	}
-+
-+	mdio_bus = mdiobus_alloc();
-+	if (!mdio_bus)
-+		return -ENOMEM;
-+
-+	mdio_bus->name = "APM X-Gene MDIO bus";
-+	mdio_bus->read = xgene_enet_mdio_read;
-+	mdio_bus->write = xgene_enet_mdio_write;
-+	snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s-%s", "xgene-mii",
-+		 ndev->name);
-+
-+	mdio_bus->priv = pdata;
-+	mdio_bus->parent = &ndev->dev;
-+
-+	ret = of_mdiobus_register(mdio_bus, mdio_np);
-+	if (ret) {
-+		netdev_err(ndev, "Failed to register MDIO bus\n");
-+		goto err;
-+	}
-+	pdata->mdio_bus = mdio_bus;
-+
-+	ret = xgene_enet_phy_connect(ndev);
-+	if (ret)
-+		goto err;
-+
-+	return ret;
-+
-+err:
-+	mdiobus_free(mdio_bus);
-+
-+	return ret;
-+}
-+
-+int xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata)
-+{
-+	struct mii_bus *mdio_bus;
-+
-+	mdio_bus = pdata->mdio_bus;
-+	mdiobus_unregister(mdio_bus);
-+	mdiobus_free(mdio_bus);
-+	pdata->mdio_bus = NULL;
-+
-+	return 0;
-+}
-diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
-new file mode 100644
-index 0000000..2041313
---- /dev/null
-+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
-@@ -0,0 +1,375 @@
-+/* Applied Micro X-Gene SoC Ethernet Driver
-+ *
-+ * Copyright (c) 2014, Applied Micro Circuits Corporation
-+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
-+ *	    Ravi Patel <rapatel@apm.com>
-+ *	    Keyur Chudgar <kchudgar@apm.com>
-+ *
-+ * This program is free software; you can redistribute  it and/or modify it
-+ * under  the terms of  the GNU General  Public License as published by the
-+ * Free Software Foundation;  either version 2 of the  License, or (at your
-+ * option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#ifndef __XGENE_ENET_HW_H__
-+#define __XGENE_ENET_HW_H__
-+
-+#include "xgene_enet_main.h"
-+
-+struct xgene_enet_pdata;
-+struct xgene_enet_stats;
-+
-+/* clears and then set bits */
-+static inline void xgene_set_bits(u32 *dst, u32 val, u32 start, u32 len)
-+{
-+	u32 end = start + len - 1;
-+	u32 mask = GENMASK(end, start);
-+
-+	*dst &= ~mask;
-+	*dst |= (val << start) & mask;
-+}
-+
-+static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
-+{
-+	return (val & GENMASK(end, start)) >> start;
-+}
-+
-+#define CSR_RING_ID		0x0008
-+#define OVERWRITE		BIT(31)
-+#define IS_BUFFER_POOL		BIT(20)
-+#define PREFETCH_BUF_EN		BIT(21)
-+#define CSR_RING_ID_BUF		0x000c
-+#define CSR_RING_NE_INT_MODE	0x017c
-+#define CSR_RING_CONFIG		0x006c
-+#define CSR_RING_WR_BASE	0x0070
-+#define NUM_RING_CONFIG		5
-+#define BUFPOOL_MODE		3
-+#define RM3			3
-+#define INC_DEC_CMD_ADDR	0x002c
-+#define UDP_HDR_SIZE		2
-+#define BUF_LEN_CODE_2K		0x5000
-+
-+#define CREATE_MASK(pos, len)		GENMASK((pos)+(len)-1, (pos))
-+#define CREATE_MASK_ULL(pos, len)	GENMASK_ULL((pos)+(len)-1, (pos))
-+
-+/* Empty slot soft signature */
-+#define EMPTY_SLOT_INDEX	1
-+#define EMPTY_SLOT		~0ULL
-+
-+#define WORK_DESC_SIZE		32
-+#define BUFPOOL_DESC_SIZE	16
-+
-+#define RING_OWNER_MASK		GENMASK(9, 6)
-+#define RING_BUFNUM_MASK	GENMASK(5, 0)
-+
-+#define SELTHRSH_POS		3
-+#define SELTHRSH_LEN		3
-+#define RINGADDRL_POS		5
-+#define RINGADDRL_LEN		27
-+#define RINGADDRH_POS		0
-+#define RINGADDRH_LEN		6
-+#define RINGSIZE_POS		23
-+#define RINGSIZE_LEN		3
-+#define RINGTYPE_POS		19
-+#define RINGTYPE_LEN		2
-+#define RINGMODE_POS		20
-+#define RINGMODE_LEN		3
-+#define RECOMTIMEOUTL_POS	28
-+#define RECOMTIMEOUTL_LEN	3
-+#define RECOMTIMEOUTH_POS	0
-+#define RECOMTIMEOUTH_LEN	2
-+#define NUMMSGSINQ_POS		1
-+#define NUMMSGSINQ_LEN		16
-+#define ACCEPTLERR		BIT(19)
-+#define QCOHERENT		BIT(4)
-+#define RECOMBBUF		BIT(27)
-+
-+#define BLOCK_ETH_CSR_OFFSET		0x2000
-+#define BLOCK_ETH_RING_IF_OFFSET	0x9000
-+#define BLOCK_ETH_CLKRST_CSR_OFFSET	0xC000
-+#define BLOCK_ETH_DIAG_CSR_OFFSET	0xD000
-+
-+#define BLOCK_ETH_MAC_OFFSET		0x0000
-+#define BLOCK_ETH_STATS_OFFSET		0x0014
-+#define BLOCK_ETH_MAC_CSR_OFFSET	0x2800
-+
-+#define MAC_ADDR_REG_OFFSET		0x00
-+#define MAC_COMMAND_REG_OFFSET		0x04
-+#define MAC_WRITE_REG_OFFSET		0x08
-+#define MAC_READ_REG_OFFSET		0x0c
-+#define MAC_COMMAND_DONE_REG_OFFSET	0x10
-+
-+#define STAT_ADDR_REG_OFFSET		0x00
-+#define STAT_COMMAND_REG_OFFSET		0x04
-+#define STAT_WRITE_REG_OFFSET		0x08
-+#define STAT_READ_REG_OFFSET		0x0c
-+#define STAT_COMMAND_DONE_REG_OFFSET	0x10
-+
-+#define MII_MGMT_CONFIG_ADDR		0x20
-+#define MII_MGMT_COMMAND_ADDR		0x24
-+#define MII_MGMT_ADDRESS_ADDR		0x28
-+#define MII_MGMT_CONTROL_ADDR		0x2c
-+#define MII_MGMT_STATUS_ADDR		0x30
-+#define MII_MGMT_INDICATORS_ADDR	0x34
-+
-+#define BUSY_MASK			BIT(0)
-+#define READ_CYCLE_MASK			BIT(0)
-+#define PHY_CONTROL_SET(dst, val)	xgene_set_bits(dst, val, 0, 16)
-+
-+#define ENET_SPARE_CFG_REG_ADDR		0x0750
-+#define RSIF_CONFIG_REG_ADDR		0x0010
-+#define RSIF_RAM_DBG_REG0_ADDR		0x0048
-+#define RGMII_REG_0_ADDR		0x07e0
-+#define CFG_LINK_AGGR_RESUME_0_ADDR	0x07c8
-+#define DEBUG_REG_ADDR			0x0700
-+#define CFG_BYPASS_ADDR			0x0294
-+#define CLE_BYPASS_REG0_0_ADDR		0x0490
-+#define CLE_BYPASS_REG1_0_ADDR		0x0494
-+#define CFG_RSIF_FPBUFF_TIMEOUT_EN	BIT(31)
-+#define RESUME_TX			BIT(0)
-+#define CFG_SPEED_1250			BIT(24)
-+#define TX_PORT0			BIT(0)
-+#define CFG_BYPASS_UNISEC_TX		BIT(2)
-+#define CFG_BYPASS_UNISEC_RX		BIT(1)
-+#define CFG_CLE_BYPASS_EN0		BIT(31)
-+#define CFG_TXCLK_MUXSEL0_SET(dst, val)	xgene_set_bits(dst, val, 29, 3)
-+
-+#define CFG_CLE_IP_PROTOCOL0_SET(dst, val)	xgene_set_bits(dst, val, 16, 2)
-+#define CFG_CLE_DSTQID0_SET(dst, val)		xgene_set_bits(dst, val, 0, 12)
-+#define CFG_CLE_FPSEL0_SET(dst, val)		xgene_set_bits(dst, val, 16, 4)
-+#define CFG_MACMODE_SET(dst, val)		xgene_set_bits(dst, val, 18, 2)
-+#define CFG_WAITASYNCRD_SET(dst, val)		xgene_set_bits(dst, val, 0, 16)
-+#define ICM_CONFIG0_REG_0_ADDR		0x0400
-+#define ICM_CONFIG2_REG_0_ADDR		0x0410
-+#define RX_DV_GATE_REG_0_ADDR		0x05fc
-+#define TX_DV_GATE_EN0			BIT(2)
-+#define RX_DV_GATE_EN0			BIT(1)
-+#define RESUME_RX0			BIT(0)
-+#define ENET_CFGSSQMIWQASSOC_ADDR		0xe0
-+#define ENET_CFGSSQMIFPQASSOC_ADDR		0xdc
-+#define ENET_CFGSSQMIQMLITEFPQASSOC_ADDR	0xf0
-+#define ENET_CFGSSQMIQMLITEWQASSOC_ADDR		0xf4
-+#define ENET_CFG_MEM_RAM_SHUTDOWN_ADDR		0x70
-+#define ENET_BLOCK_MEM_RDY_ADDR			0x74
-+#define MAC_CONFIG_1_ADDR			0x00
-+#define MAC_CONFIG_2_ADDR			0x04
-+#define MAX_FRAME_LEN_ADDR			0x10
-+#define INTERFACE_CONTROL_ADDR			0x38
-+#define STATION_ADDR0_ADDR			0x40
-+#define STATION_ADDR1_ADDR			0x44
-+#define PHY_ADDR_SET(dst, val)			xgene_set_bits(dst, val, 8, 5)
-+#define REG_ADDR_SET(dst, val)			xgene_set_bits(dst, val, 0, 5)
-+#define ENET_INTERFACE_MODE2_SET(dst, val)	xgene_set_bits(dst, val, 8, 2)
-+#define MGMT_CLOCK_SEL_SET(dst, val)		xgene_set_bits(dst, val, 0, 3)
-+#define SOFT_RESET1			BIT(31)
-+#define TX_EN				BIT(0)
-+#define RX_EN				BIT(2)
-+#define ENET_LHD_MODE			BIT(25)
-+#define ENET_GHD_MODE			BIT(26)
-+#define FULL_DUPLEX2			BIT(0)
-+#define SCAN_AUTO_INCR			BIT(5)
-+#define TBYT_ADDR			0x38
-+#define TPKT_ADDR			0x39
-+#define TDRP_ADDR			0x45
-+#define TFCS_ADDR			0x47
-+#define TUND_ADDR			0x4a
-+
-+#define TSO_IPPROTO_TCP			1
-+#define	FULL_DUPLEX			2
-+
-+#define USERINFO_POS			0
-+#define USERINFO_LEN			32
-+#define FPQNUM_POS			32
-+#define FPQNUM_LEN			12
-+#define LERR_POS			60
-+#define LERR_LEN			3
-+#define STASH_POS			52
-+#define STASH_LEN			2
-+#define BUFDATALEN_POS			48
-+#define BUFDATALEN_LEN			12
-+#define DATAADDR_POS			0
-+#define DATAADDR_LEN			42
-+#define COHERENT_POS			63
-+#define HENQNUM_POS			48
-+#define HENQNUM_LEN			12
-+#define TYPESEL_POS			44
-+#define TYPESEL_LEN			4
-+#define ETHHDR_POS			12
-+#define IC_POS				35	/* Insert CRC */
-+#define TCPHDR_POS			0
-+#define TCPHDR_LEN			6
-+#define IPHDR_POS			6
-+#define IPHDR_LEN			6
-+#define EC_POS				22	/* Enable checksum */
-+#define IS_POS				24	/* IP protocol select */
-+
-+#define DATAADDR_MASK		CREATE_MASK_ULL(DATAADDR_POS, DATAADDR_LEN)
-+#define BUFDATALEN_MASK		CREATE_MASK_ULL(BUFDATALEN_POS, BUFDATALEN_LEN)
-+#define USERINFO_MASK		CREATE_MASK_ULL(USERINFO_POS, USERINFO_LEN)
-+#define FPQNUM_MASK		CREATE_MASK_ULL(FPQNUM_POS, FPQNUM_LEN)
-+#define LERR_MASK		CREATE_MASK_ULL(LERR_POS, LERR_LEN)
-+#define STASHING_MASK		CREATE_MASK_ULL(STASH_POS, STASH_LEN)
-+#define COHERENT_MASK		BIT_ULL(COHERENT_POS)
-+#define HENQNUM_MASK		CREATE_MASK_ULL(HENQNUM_POS, HENQNUM_LEN)
-+#define TCPHDR_MASK		CREATE_MASK(TCPHDR_POS, TCPHDR_LEN)
-+#define IPHDR_MASK		CREATE_MASK(IPHDR_POS, IPHDR_LEN)
-+#define EC_MASK			BIT(EC_POS)
-+#define IS_MASK			BIT(IS_POS)
-+#define INSERT_CRC		BIT_ULL(IC_POS)
-+#define TYPE_ETH_WORK_MESSAGE	BIT_ULL(44)
-+
-+struct xgene_enet_raw_desc {
-+	u64 m0;
-+	u64 m1;
-+	u64 m2;
-+	u64 m3;
-+};
-+
-+struct xgene_enet_raw_desc16 {
-+	u64 m0;
-+	u64 m1;
-+};
-+
-+static inline void xgene_enet_cpu_to_le64(void *desc_ptr, int count)
-+{
-+	u64 *desc = desc_ptr;
-+	int i;
-+
-+	for (i = 0; i < count; i++)
-+		desc[i] = cpu_to_le64(desc[i]);
-+}
-+
-+static inline void xgene_enet_le64_to_cpu(void *desc_ptr, int count)
-+{
-+	u64 *desc = desc_ptr;
-+	int i;
-+
-+	for (i = 0; i < count; i++)
-+		desc[i] = le64_to_cpu(desc[i]);
-+}
-+
-+static inline void xgene_enet_desc16_to_le64(void *desc_ptr)
-+{
-+	u64 *desc;
-+
-+	desc = desc_ptr;
-+	desc[1] = cpu_to_le64(desc[1]);
-+}
-+
-+static inline void xgene_enet_le64_to_desc16(void *desc_ptr)
-+{
-+	u64 *desc;
-+
-+	desc = desc_ptr;
-+	desc[1] = le64_to_cpu(desc[1]);
-+}
-+
-+enum xgene_enet_ring_cfgsize {
-+	RING_CFGSIZE_512B,
-+	RING_CFGSIZE_2KB,
-+	RING_CFGSIZE_16KB,
-+	RING_CFGSIZE_64KB,
-+	RING_CFGSIZE_512KB,
-+	RING_CFGSIZE_INVALID
-+};
-+
-+enum xgene_enet_ring_type {
-+	RING_DISABLED,
-+	RING_REGULAR,
-+	RING_BUFPOOL
-+};
-+
-+enum xgene_ring_owner {
-+	RING_OWNER_ETH0,
-+	RING_OWNER_CPU = 15,
-+	RING_OWNER_INVALID
-+};
-+
-+enum xgene_enet_ring_bufnum {
-+	RING_BUFNUM_REGULAR = 0x0,
-+	RING_BUFNUM_BUFPOOL = 0x20,
-+	RING_BUFNUM_INVALID
-+};
-+
-+enum xgene_enet_cmd {
-+	XGENE_ENET_WR_CMD = BIT(31),
-+	XGENE_ENET_RD_CMD = BIT(30)
-+};
-+
-+enum xgene_enet_err_code {
-+	HBF_READ_DATA = 3,
-+	HBF_LL_READ = 4,
-+	BAD_WORK_MSG = 6,
-+	BUFPOOL_TIMEOUT = 15,
-+	INGRESS_CRC = 16,
-+	INGRESS_CHECKSUM = 17,
-+	INGRESS_TRUNC_FRAME = 18,
-+	INGRESS_PKT_LEN = 19,
-+	INGRESS_PKT_UNDER = 20,
-+	INGRESS_FIFO_OVERRUN = 21,
-+	INGRESS_CHECKSUM_COMPUTE = 26,
-+	ERR_CODE_INVALID
-+};
-+
-+static inline enum xgene_ring_owner xgene_enet_ring_owner(u16 id)
-+{
-+	return (id & RING_OWNER_MASK) >> 6;
-+}
-+
-+static inline u8 xgene_enet_ring_bufnum(u16 id)
-+{
-+	return id & RING_BUFNUM_MASK;
-+}
-+
-+static inline bool xgene_enet_is_bufpool(u16 id)
-+{
-+	return ((id & RING_BUFNUM_MASK) >= 0x20) ? true : false;
-+}
-+
-+static inline u16 xgene_enet_get_numslots(u16 id, u32 size)
-+{
-+	bool is_bufpool = xgene_enet_is_bufpool(id);
-+
-+	return (is_bufpool) ? size / BUFPOOL_DESC_SIZE :
-+		      size / WORK_DESC_SIZE;
-+}
-+
-+struct xgene_enet_desc_ring *xgene_enet_setup_ring(
-+		struct xgene_enet_desc_ring *ring);
-+void xgene_enet_clear_ring(struct xgene_enet_desc_ring *ring);
-+
-+void xgene_set_tx_desc(struct xgene_enet_desc_ring *ring,
-+		       struct xgene_enet_raw_desc *raw_desc);
-+void xgene_get_desc(struct xgene_enet_desc_ring *ring,
-+		    struct xgene_enet_raw_desc *raw_desc);
-+void xgene_get_bufpool_desc(struct xgene_enet_desc_ring *ring,
-+			    struct xgene_enet_raw_desc16 *raw_desc);
-+void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring,
-+			    struct xgene_enet_pdata *pdata,
-+			    enum xgene_enet_err_code status);
-+
-+void xgene_enet_reset(struct xgene_enet_pdata *priv);
-+void xgene_gmac_reset(struct xgene_enet_pdata *priv);
-+void xgene_gmac_init(struct xgene_enet_pdata *priv, int speed);
-+void xgene_gmac_tx_enable(struct xgene_enet_pdata *priv);
-+void xgene_gmac_rx_enable(struct xgene_enet_pdata *priv);
-+void xgene_gmac_tx_disable(struct xgene_enet_pdata *priv);
-+void xgene_gmac_rx_disable(struct xgene_enet_pdata *priv);
-+void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata);
-+void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata,
-+			   u32 dst_ring_num, u16 bufpool_id);
-+void xgene_gport_shutdown(struct xgene_enet_pdata *priv);
-+void xgene_gmac_get_tx_stats(struct xgene_enet_pdata *pdata);
-+
-+int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata);
-+int xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata);
-+
-+#endif /* __XGENE_ENET_HW_H__ */
-diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
-new file mode 100644
-index 0000000..756523a
---- /dev/null
-+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
-@@ -0,0 +1,962 @@
-+/* Applied Micro X-Gene SoC Ethernet Driver
-+ *
-+ * Copyright (c) 2014, Applied Micro Circuits Corporation
-+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
-+ *	    Ravi Patel <rapatel@apm.com>
-+ *	    Keyur Chudgar <kchudgar@apm.com>
-+ *
-+ * This program is free software; you can redistribute  it and/or modify it
-+ * under  the terms of  the GNU General  Public License as published by the
-+ * Free Software Foundation;  either version 2 of the  License, or (at your
-+ * option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#include "xgene_enet_main.h"
-+#include "xgene_enet_hw.h"
-+
-+static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool)
-+{
-+	struct xgene_enet_raw_desc16 *raw_desc;
-+	int i;
-+
-+	for (i = 0; i < buf_pool->slots; i++) {
-+		raw_desc = &buf_pool->raw_desc16[i];
-+
-+		/* Hardware expects descriptor in little endian format */
-+		raw_desc->m0 = cpu_to_le64(i |
-+			       (((u64)buf_pool->dst_ring_num << FPQNUM_POS) &
-+			       FPQNUM_MASK) | STASHING_MASK);
-+	}
-+}
-+
-+static struct device *ndev_to_dev(struct net_device *ndev)
-+{
-+	return ndev->dev.parent;
-+}
-+
-+static int xgene_enet_refill_bufpool(struct xgene_enet_desc_ring *buf_pool,
-+				     u32 nbuf)
-+{
-+	struct sk_buff *skb;
-+	struct xgene_enet_raw_desc16 *raw_desc;
-+	struct net_device *ndev;
-+	struct device *dev;
-+	dma_addr_t dma_addr;
-+	u32 tail = buf_pool->tail;
-+	u32 slots = buf_pool->slots - 1;
-+	u16 bufdatalen, len;
-+	int i;
-+
-+	ndev = buf_pool->ndev;
-+	dev = ndev_to_dev(buf_pool->ndev);
-+	bufdatalen = BUF_LEN_CODE_2K | (SKB_BUFFER_SIZE & GENMASK(11, 0));
-+	len = XGENE_ENET_MAX_MTU;
-+
-+	for (i = 0; i < nbuf; i++) {
-+		raw_desc = &buf_pool->raw_desc16[tail];
-+
-+		skb = netdev_alloc_skb_ip_align(ndev, len);
-+		if (unlikely(!skb))
-+			return -ENOMEM;
-+		buf_pool->rx_skb[tail] = skb;
-+
-+		dma_addr = dma_map_single(dev, skb->data, len, DMA_FROM_DEVICE);
-+		if (dma_mapping_error(dev, dma_addr)) {
-+			netdev_err(ndev, "DMA mapping error\n");
-+			dev_kfree_skb_any(skb);
-+			return -EINVAL;
-+		}
-+
-+		raw_desc->m1 = cpu_to_le64((dma_addr & DATAADDR_MASK) |
-+			       (((u64)bufdatalen << BUFDATALEN_POS) &
-+			       BUFDATALEN_MASK) | COHERENT_MASK);
-+		tail = (tail + 1) & slots;
-+	}
-+
-+	iowrite32(nbuf, buf_pool->cmd);
-+	buf_pool->tail = tail;
-+
-+	return 0;
-+}
-+
-+static u16 xgene_enet_dst_ring_num(struct xgene_enet_desc_ring *ring)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev);
-+
-+	return ((u16)pdata->rm << 10) | ring->num;
-+}
-+
-+static u8 xgene_enet_hdr_len(const void *data)
-+{
-+	const struct ethhdr *eth = data;
-+
-+	return (eth->h_proto == htons(ETH_P_8021Q)) ? VLAN_ETH_HLEN : ETH_HLEN;
-+}
-+
-+static u32 xgene_enet_ring_len(struct xgene_enet_desc_ring *ring)
-+{
-+	u32 *cmd_base = ring->cmd_base;
-+	u32 ring_state, num_msgs;
-+
-+	ring_state = ioread32(&cmd_base[1]);
-+	num_msgs = ring_state & CREATE_MASK(NUMMSGSINQ_POS, NUMMSGSINQ_LEN);
-+
-+	return num_msgs >> NUMMSGSINQ_POS;
-+}
-+
-+static void xgene_enet_delete_bufpool(struct xgene_enet_desc_ring *buf_pool)
-+{
-+	struct xgene_enet_raw_desc16 *raw_desc;
-+	u32 slots = buf_pool->slots - 1;
-+	u32 tail = buf_pool->tail;
-+	u32 userinfo;
-+	int i, len;
-+
-+	len = xgene_enet_ring_len(buf_pool);
-+	for (i = 0; i < len; i++) {
-+		tail = (tail - 1) & slots;
-+		raw_desc = &buf_pool->raw_desc16[tail];
-+
-+		/* Hardware stores descriptor in little endian format */
-+		userinfo = le64_to_cpu(raw_desc->m0) & USERINFO_MASK;
-+		dev_kfree_skb_any(buf_pool->rx_skb[userinfo]);
-+	}
-+
-+	iowrite32(-len, buf_pool->cmd);
-+	buf_pool->tail = tail;
-+}
-+
-+static irqreturn_t xgene_enet_rx_irq(const int irq, void *data)
-+{
-+	struct xgene_enet_desc_ring *rx_ring = data;
-+
-+	if (napi_schedule_prep(&rx_ring->napi)) {
-+		disable_irq_nosync(irq);
-+		__napi_schedule(&rx_ring->napi);
-+	}
-+
-+	return IRQ_HANDLED;
-+}
-+
-+static int xgene_enet_tx_completion(struct xgene_enet_desc_ring *cp_ring,
-+				    struct xgene_enet_raw_desc *raw_desc)
-+{
-+	struct sk_buff *skb;
-+	struct device *dev;
-+	u16 skb_index;
-+	u8 status;
-+	int ret = 0;
-+
-+	skb_index = raw_desc->m0 & USERINFO_MASK;
-+	skb = cp_ring->cp_skb[skb_index];
-+
-+	dev = ndev_to_dev(cp_ring->ndev);
-+	dma_unmap_single(dev, raw_desc->m1 & DATAADDR_MASK,
-+			 (raw_desc->m1 & BUFDATALEN_MASK) >> BUFDATALEN_POS,
-+			 DMA_TO_DEVICE);
-+
-+	/* Checking for error */
-+	status = (raw_desc->m0 & LERR_MASK) >> LERR_POS;
-+	if (unlikely(status > 2)) {
-+		xgene_enet_parse_error(cp_ring, netdev_priv(cp_ring->ndev),
-+				       status);
-+		ret = -1;
-+	}
-+
-+	if (likely(skb)) {
-+		dev_kfree_skb_any(skb);
-+	} else {
-+		netdev_err(cp_ring->ndev, "completion skb is NULL\n");
-+		ret = -1;
-+	}
-+
-+	return ret;
-+}
-+
-+static u64 xgene_enet_work_msg(struct sk_buff *skb)
-+{
-+	struct iphdr *iph;
-+	u8 l3hlen, l4hlen = 0;
-+	u8 csum_enable = 0;
-+	u8 proto = 0;
-+	u8 ethhdr;
-+	u64 hopinfo;
-+
-+	if (unlikely(skb->protocol != htons(ETH_P_IP)) &&
-+	    unlikely(skb->protocol != htons(ETH_P_8021Q)))
-+		goto out;
-+
-+	if (unlikely(!(skb->dev->features & NETIF_F_IP_CSUM)))
-+		goto out;
-+
-+	iph = ip_hdr(skb);
-+	if (unlikely(ip_is_fragment(iph)))
-+		goto out;
-+
-+	if (likely(iph->protocol == IPPROTO_TCP)) {
-+		l4hlen = tcp_hdrlen(skb) >> 2;
-+		csum_enable = 1;
-+		proto = TSO_IPPROTO_TCP;
-+	} else if (iph->protocol == IPPROTO_UDP) {
-+		l4hlen = UDP_HDR_SIZE;
-+		csum_enable = 1;
-+	}
-+out:
-+	l3hlen = ip_hdrlen(skb) >> 2;
-+	ethhdr = xgene_enet_hdr_len(skb->data);
-+	hopinfo = (l4hlen & TCPHDR_MASK) |
-+		  ((l3hlen << IPHDR_POS) & IPHDR_MASK) |
-+		  (ethhdr << ETHHDR_POS) |
-+		  (csum_enable << EC_POS) |
-+		  (proto << IS_POS) |
-+		  INSERT_CRC |
-+		  TYPE_ETH_WORK_MESSAGE;
-+
-+	return hopinfo;
-+}
-+
-+static int xgene_enet_setup_tx_desc(struct xgene_enet_desc_ring *tx_ring,
-+				    struct sk_buff *skb)
-+{
-+	struct device *dev = ndev_to_dev(tx_ring->ndev);
-+	struct xgene_enet_raw_desc *raw_desc;
-+	dma_addr_t dma_addr;
-+	u16 tail = tx_ring->tail;
-+	u64 hopinfo;
-+
-+	raw_desc = &tx_ring->raw_desc[tail];
-+	memset(raw_desc, 0, sizeof(struct xgene_enet_raw_desc));
-+
-+	dma_addr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE);
-+	if (dma_mapping_error(dev, dma_addr)) {
-+		netdev_err(tx_ring->ndev, "DMA mapping error\n");
-+		return -EINVAL;
-+	}
-+
-+	/* Hardware expects descriptor in little endian format */
-+	raw_desc->m0 = cpu_to_le64(tail);
-+	raw_desc->m1 = cpu_to_le64((dma_addr & DATAADDR_MASK) |
-+		       (((u64)skb->len << BUFDATALEN_POS) & BUFDATALEN_MASK) |
-+		       COHERENT_MASK);
-+	hopinfo = xgene_enet_work_msg(skb);
-+	raw_desc->m3 = cpu_to_le64(
-+		       (((u64)tx_ring->dst_ring_num << HENQNUM_POS) &
-+		       HENQNUM_MASK) | hopinfo);
-+	tx_ring->cp_ring->cp_skb[tail] = skb;
-+
-+	return 0;
-+}
-+
-+static netdev_tx_t xgene_enet_start_xmit(struct sk_buff *skb,
-+					 struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct xgene_enet_desc_ring *tx_ring = pdata->tx_ring;
-+	struct xgene_enet_desc_ring *cp_ring = tx_ring->cp_ring;
-+	u32 tx_level, cq_level;
-+
-+	tx_level = xgene_enet_ring_len(tx_ring);
-+	cq_level = xgene_enet_ring_len(cp_ring);
-+	if (unlikely(tx_level > pdata->tx_qcnt_hi ||
-+		     cq_level > pdata->cp_qcnt_hi)) {
-+		netif_stop_queue(ndev);
-+		return NETDEV_TX_BUSY;
-+	}
-+
-+	if (xgene_enet_setup_tx_desc(tx_ring, skb)) {
-+		dev_kfree_skb_any(skb);
-+		return NETDEV_TX_OK;
-+	}
-+
-+	iowrite32(1, tx_ring->cmd);
-+	skb_tx_timestamp(skb);
-+	tx_ring->tail = (tx_ring->tail + 1) & (tx_ring->slots - 1);
-+
-+	pdata->stats.tx_packets++;
-+	pdata->stats.tx_bytes += skb->len;
-+
-+	return NETDEV_TX_OK;
-+}
-+
-+static void xgene_enet_skip_csum(struct sk_buff *skb)
-+{
-+	struct iphdr *iph = ip_hdr(skb);
-+
-+	if (!ip_is_fragment(iph) ||
-+	    (iph->protocol != IPPROTO_TCP && iph->protocol != IPPROTO_UDP)) {
-+		skb->ip_summed = CHECKSUM_UNNECESSARY;
-+	}
-+}
-+
-+static int xgene_enet_rx_frame(struct xgene_enet_desc_ring *rx_ring,
-+			       struct xgene_enet_raw_desc *raw_desc)
-+{
-+	struct net_device *ndev;
-+	struct xgene_enet_pdata *pdata;
-+	struct device *dev;
-+	struct xgene_enet_desc_ring *buf_pool;
-+	u32 datalen, skb_index;
-+	struct sk_buff *skb;
-+	u8 status;
-+	int ret = 0;
-+
-+	ndev = rx_ring->ndev;
-+	pdata = netdev_priv(ndev);
-+	dev = ndev_to_dev(rx_ring->ndev);
-+	buf_pool = rx_ring->buf_pool;
-+
-+	dma_unmap_single(dev, raw_desc->m1 & DATAADDR_MASK, XGENE_ENET_MAX_MTU,
-+			 DMA_FROM_DEVICE);
-+	skb_index = raw_desc->m0 & USERINFO_MASK;
-+	skb = buf_pool->rx_skb[skb_index];
-+
-+	/* checking for error */
-+	status = (raw_desc->m0 & LERR_MASK) >> LERR_POS;
-+	if (unlikely(status > 2)) {
-+		dev_kfree_skb_any(skb);
-+		xgene_enet_parse_error(rx_ring, netdev_priv(rx_ring->ndev),
-+				       status);
-+		pdata->stats.rx_dropped++;
-+		ret = -1;
-+		goto out;
-+	}
-+
-+	/* strip off CRC as HW isn't doing this */
-+	datalen = (raw_desc->m1 & BUFDATALEN_MASK) >> BUFDATALEN_POS;
-+	datalen -= 4;
-+	prefetch(skb->data - NET_IP_ALIGN);
-+	skb_put(skb, datalen);
-+
-+	skb_checksum_none_assert(skb);
-+	skb->protocol = eth_type_trans(skb, ndev);
-+	if (likely((ndev->features & NETIF_F_IP_CSUM) &&
-+		   skb->protocol == htons(ETH_P_IP))) {
-+		xgene_enet_skip_csum(skb);
-+	}
-+
-+	pdata->stats.rx_packets++;
-+	pdata->stats.rx_bytes += datalen;
-+	napi_gro_receive(&rx_ring->napi, skb);
-+out:
-+	if (--rx_ring->nbufpool == 0) {
-+		ret = xgene_enet_refill_bufpool(buf_pool, NUM_BUFPOOL);
-+		rx_ring->nbufpool = NUM_BUFPOOL;
-+	}
-+
-+	return ret;
-+}
-+
-+static bool is_rx_desc(struct xgene_enet_raw_desc *raw_desc)
-+{
-+	/* Hardware stores descriptor in little endian format */
-+	raw_desc->m0 = le64_to_cpu(raw_desc->m0);
-+	raw_desc->m1 = le64_to_cpu(raw_desc->m1);
-+	return ((raw_desc->m0 & FPQNUM_MASK) >> FPQNUM_POS) ? true : false;
-+}
-+
-+static int xgene_enet_process_ring(struct xgene_enet_desc_ring *ring,
-+				   int budget)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev);
-+	struct xgene_enet_raw_desc *raw_desc;
-+	u16 head = ring->head;
-+	u16 slots = ring->slots - 1;
-+	int ret, count = 0;
-+
-+	do {
-+		raw_desc = &ring->raw_desc[head];
-+		if (unlikely(((u64 *)raw_desc)[EMPTY_SLOT_INDEX] == EMPTY_SLOT))
-+			break;
-+
-+		if (is_rx_desc(raw_desc))
-+			ret = xgene_enet_rx_frame(ring, raw_desc);
-+		else
-+			ret = xgene_enet_tx_completion(ring, raw_desc);
-+		((u64 *)raw_desc)[EMPTY_SLOT_INDEX] = EMPTY_SLOT;
-+
-+		head = (head + 1) & slots;
-+		count++;
-+
-+		if (ret)
-+			break;
-+	} while (--budget);
-+
-+	if (likely(count)) {
-+		iowrite32(-count, ring->cmd);
-+		ring->head = head;
-+
-+		if (netif_queue_stopped(ring->ndev)) {
-+			if (xgene_enet_ring_len(ring) < pdata->cp_qcnt_low)
-+				netif_wake_queue(ring->ndev);
-+		}
-+	}
-+
-+	return budget;
-+}
-+
-+static int xgene_enet_napi(struct napi_struct *napi, const int budget)
-+{
-+	struct xgene_enet_desc_ring *ring;
-+	int processed;
-+
-+	ring = container_of(napi, struct xgene_enet_desc_ring, napi);
-+	processed = xgene_enet_process_ring(ring, budget);
-+
-+	if (processed != budget) {
-+		napi_complete(napi);
-+		enable_irq(ring->irq);
-+	}
-+
-+	return processed;
-+}
-+
-+static void xgene_enet_timeout(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+
-+	xgene_gmac_reset(pdata);
-+}
-+
-+static int xgene_enet_register_irq(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct device *dev = ndev_to_dev(ndev);
-+	int ret;
-+
-+	ret = devm_request_irq(dev, pdata->rx_ring->irq, xgene_enet_rx_irq,
-+			       IRQF_SHARED, ndev->name, pdata->rx_ring);
-+	if (ret) {
-+		netdev_err(ndev, "rx%d interrupt request failed\n",
-+			   pdata->rx_ring->irq);
-+	}
-+
-+	return ret;
-+}
-+
-+static void xgene_enet_free_irq(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata;
-+	struct device *dev;
-+
-+	pdata = netdev_priv(ndev);
-+	dev = ndev_to_dev(ndev);
-+	devm_free_irq(dev, pdata->rx_ring->irq, pdata->rx_ring);
-+}
-+
-+static int xgene_enet_open(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	int ret;
-+
-+	xgene_gmac_tx_enable(pdata);
-+	xgene_gmac_rx_enable(pdata);
-+
-+	ret = xgene_enet_register_irq(ndev);
-+	if (ret)
-+		return ret;
-+	napi_enable(&pdata->rx_ring->napi);
-+
-+	if (pdata->phy_dev)
-+		phy_start(pdata->phy_dev);
-+
-+	netif_start_queue(ndev);
-+
-+	return ret;
-+}
-+
-+static int xgene_enet_close(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+
-+	netif_stop_queue(ndev);
-+
-+	if (pdata->phy_dev)
-+		phy_stop(pdata->phy_dev);
-+
-+	napi_disable(&pdata->rx_ring->napi);
-+	xgene_enet_free_irq(ndev);
-+	xgene_enet_process_ring(pdata->rx_ring, -1);
-+
-+	xgene_gmac_tx_disable(pdata);
-+	xgene_gmac_rx_disable(pdata);
-+
-+	return 0;
-+}
-+
-+static void xgene_enet_delete_ring(struct xgene_enet_desc_ring *ring)
-+{
-+	struct xgene_enet_pdata *pdata;
-+	struct device *dev;
-+
-+	pdata = netdev_priv(ring->ndev);
-+	dev = ndev_to_dev(ring->ndev);
-+
-+	xgene_enet_clear_ring(ring);
-+	dma_free_coherent(dev, ring->size, ring->desc_addr, ring->dma);
-+}
-+
-+static void xgene_enet_delete_desc_rings(struct xgene_enet_pdata *pdata)
-+{
-+	struct xgene_enet_desc_ring *buf_pool;
-+
-+	if (pdata->tx_ring) {
-+		xgene_enet_delete_ring(pdata->tx_ring);
-+		pdata->tx_ring = NULL;
-+	}
-+
-+	if (pdata->rx_ring) {
-+		buf_pool = pdata->rx_ring->buf_pool;
-+		xgene_enet_delete_bufpool(buf_pool);
-+		xgene_enet_delete_ring(buf_pool);
-+		xgene_enet_delete_ring(pdata->rx_ring);
-+		pdata->rx_ring = NULL;
-+	}
-+}
-+
-+static int xgene_enet_get_ring_size(struct device *dev,
-+				    enum xgene_enet_ring_cfgsize cfgsize)
-+{
-+	int size = -EINVAL;
-+
-+	switch (cfgsize) {
-+	case RING_CFGSIZE_512B:
-+		size = 0x200;
-+		break;
-+	case RING_CFGSIZE_2KB:
-+		size = 0x800;
-+		break;
-+	case RING_CFGSIZE_16KB:
-+		size = 0x4000;
-+		break;
-+	case RING_CFGSIZE_64KB:
-+		size = 0x10000;
-+		break;
-+	case RING_CFGSIZE_512KB:
-+		size = 0x80000;
-+		break;
-+	default:
-+		dev_err(dev, "Unsupported cfg ring size %d\n", cfgsize);
-+		break;
-+	}
-+
-+	return size;
-+}
-+
-+static void xgene_enet_free_desc_ring(struct xgene_enet_desc_ring *ring)
-+{
-+	struct device *dev;
-+
-+	if (!ring)
-+		return;
-+
-+	dev = ndev_to_dev(ring->ndev);
-+
-+	if (ring->desc_addr) {
-+		xgene_enet_clear_ring(ring);
-+		dma_free_coherent(dev, ring->size, ring->desc_addr, ring->dma);
-+	}
-+	devm_kfree(dev, ring);
-+}
-+
-+static void xgene_enet_free_desc_rings(struct xgene_enet_pdata *pdata)
-+{
-+	struct device *dev = &pdata->pdev->dev;
-+	struct xgene_enet_desc_ring *ring;
-+
-+	ring = pdata->tx_ring;
-+	if (ring && ring->cp_ring && ring->cp_ring->cp_skb)
-+		devm_kfree(dev, ring->cp_ring->cp_skb);
-+	xgene_enet_free_desc_ring(ring);
-+
-+	ring = pdata->rx_ring;
-+	if (ring && ring->buf_pool && ring->buf_pool->rx_skb)
-+		devm_kfree(dev, ring->buf_pool->rx_skb);
-+	xgene_enet_free_desc_ring(ring->buf_pool);
-+	xgene_enet_free_desc_ring(ring);
-+}
-+
-+static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring(
-+			struct net_device *ndev, u32 ring_num,
-+			enum xgene_enet_ring_cfgsize cfgsize, u32 ring_id)
-+{
-+	struct xgene_enet_desc_ring *ring;
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct device *dev = ndev_to_dev(ndev);
-+	u32 size;
-+
-+	ring = devm_kzalloc(dev, sizeof(struct xgene_enet_desc_ring),
-+			    GFP_KERNEL);
-+	if (!ring)
-+		return NULL;
-+
-+	ring->ndev = ndev;
-+	ring->num = ring_num;
-+	ring->cfgsize = cfgsize;
-+	ring->id = ring_id;
-+
-+	size = xgene_enet_get_ring_size(dev, cfgsize);
-+	ring->desc_addr = dma_zalloc_coherent(dev, size, &ring->dma,
-+					      GFP_KERNEL);
-+	if (!ring->desc_addr) {
-+		devm_kfree(dev, ring);
-+		return NULL;
-+	}
-+	ring->size = size;
-+
-+	ring->cmd_base = pdata->ring_cmd_addr + (ring->num << 6);
-+	ring->cmd = ring->cmd_base + INC_DEC_CMD_ADDR;
-+	pdata->rm = RM3;
-+	ring = xgene_enet_setup_ring(ring);
-+	netdev_dbg(ndev, "ring info: num=%d  size=%d  id=%d  slots=%d\n",
-+		   ring->num, ring->size, ring->id, ring->slots);
-+
-+	return ring;
-+}
-+
-+static u16 xgene_enet_get_ring_id(enum xgene_ring_owner owner, u8 bufnum)
-+{
-+	return (owner << 6) | (bufnum & GENMASK(5, 0));
-+}
-+
-+static int xgene_enet_create_desc_rings(struct net_device *ndev)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct device *dev = ndev_to_dev(ndev);
-+	struct xgene_enet_desc_ring *rx_ring, *tx_ring, *cp_ring;
-+	struct xgene_enet_desc_ring *buf_pool = NULL;
-+	u8 cpu_bufnum = 0, eth_bufnum = 0;
-+	u8 bp_bufnum = 0x20;
-+	u16 ring_id, ring_num = 0;
-+	int ret;
-+
-+	/* allocate rx descriptor ring */
-+	ring_id = xgene_enet_get_ring_id(RING_OWNER_CPU, cpu_bufnum++);
-+	rx_ring = xgene_enet_create_desc_ring(ndev, ring_num++,
-+					      RING_CFGSIZE_16KB, ring_id);
-+	if (!rx_ring) {
-+		ret = -ENOMEM;
-+		goto err;
-+	}
-+
-+	/* allocate buffer pool for receiving packets */
-+	ring_id = xgene_enet_get_ring_id(RING_OWNER_ETH0, bp_bufnum++);
-+	buf_pool = xgene_enet_create_desc_ring(ndev, ring_num++,
-+					       RING_CFGSIZE_2KB, ring_id);
-+	if (!buf_pool) {
-+		ret = -ENOMEM;
-+		goto err;
-+	}
-+
-+	rx_ring->nbufpool = NUM_BUFPOOL;
-+	rx_ring->buf_pool = buf_pool;
-+	rx_ring->irq = pdata->rx_irq;
-+	buf_pool->rx_skb = devm_kcalloc(dev, buf_pool->slots,
-+				     sizeof(struct sk_buff *), GFP_KERNEL);
-+	if (!buf_pool->rx_skb) {
-+		ret = -ENOMEM;
-+		goto err;
-+	}
-+
-+	buf_pool->dst_ring_num = xgene_enet_dst_ring_num(buf_pool);
-+	rx_ring->buf_pool = buf_pool;
-+	pdata->rx_ring = rx_ring;
-+
-+	/* allocate tx descriptor ring */
-+	ring_id = xgene_enet_get_ring_id(RING_OWNER_ETH0, eth_bufnum++);
-+	tx_ring = xgene_enet_create_desc_ring(ndev, ring_num++,
-+					      RING_CFGSIZE_16KB, ring_id);
-+	if (!tx_ring) {
-+		ret = -ENOMEM;
-+		goto err;
-+	}
-+	pdata->tx_ring = tx_ring;
-+
-+	cp_ring = pdata->rx_ring;
-+	cp_ring->cp_skb = devm_kcalloc(dev, tx_ring->slots,
-+				     sizeof(struct sk_buff *), GFP_KERNEL);
-+	if (!cp_ring->cp_skb) {
-+		ret = -ENOMEM;
-+		goto err;
-+	}
-+	pdata->tx_ring->cp_ring = cp_ring;
-+	pdata->tx_ring->dst_ring_num = xgene_enet_dst_ring_num(cp_ring);
-+
-+	pdata->tx_qcnt_hi = pdata->tx_ring->slots / 2;
-+	pdata->cp_qcnt_hi = pdata->rx_ring->slots / 2;
-+	pdata->cp_qcnt_low = pdata->cp_qcnt_hi / 2;
-+
-+	return 0;
-+
-+err:
-+	xgene_enet_free_desc_rings(pdata);
-+	return ret;
-+}
-+
-+static struct rtnl_link_stats64 *xgene_enet_get_stats64(
-+			struct net_device *ndev,
-+			struct rtnl_link_stats64 *storage)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	struct rtnl_link_stats64 *stats = &pdata->stats;
-+
-+	spin_lock(&pdata->stats_lock);
-+	stats->rx_errors += stats->rx_length_errors +
-+			    stats->rx_crc_errors +
-+			    stats->rx_frame_errors +
-+			    stats->rx_fifo_errors;
-+	memcpy(storage, &pdata->stats, sizeof(struct rtnl_link_stats64));
-+	spin_unlock(&pdata->stats_lock);
-+
-+	return storage;
-+}
-+
-+static int xgene_enet_set_mac_address(struct net_device *ndev, void *addr)
-+{
-+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
-+	int ret;
-+
-+	ret = eth_mac_addr(ndev, addr);
-+	if (ret)
-+		return ret;
-+	xgene_gmac_set_mac_addr(pdata);
-+
-+	return ret;
-+}
-+
-+static const struct net_device_ops xgene_ndev_ops = {
-+	.ndo_open = xgene_enet_open,
-+	.ndo_stop = xgene_enet_close,
-+	.ndo_start_xmit = xgene_enet_start_xmit,
-+	.ndo_tx_timeout = xgene_enet_timeout,
-+	.ndo_get_stats64 = xgene_enet_get_stats64,
-+	.ndo_change_mtu = eth_change_mtu,
-+	.ndo_set_mac_address = xgene_enet_set_mac_address,
-+};
-+
-+static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
-+{
-+	struct platform_device *pdev;
-+	struct net_device *ndev;
-+	struct device *dev;
-+	struct resource *res;
-+	void *base_addr;
-+	const char *mac;
-+	int ret;
-+
-+	pdev = pdata->pdev;
-+	dev = &pdev->dev;
-+	ndev = pdata->ndev;
-+
-+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "enet_csr");
-+	if (!res) {
-+		dev_err(dev, "Resource enet_csr not defined\n");
-+		return -ENODEV;
-+	}
-+	pdata->base_addr = devm_ioremap_resource(dev, res);
-+	if (IS_ERR(pdata->base_addr)) {
-+		dev_err(dev, "Unable to retrieve ENET Port CSR region\n");
-+		return PTR_ERR(pdata->base_addr);
-+	}
-+
-+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ring_csr");
-+	if (!res) {
-+		dev_err(dev, "Resource ring_csr not defined\n");
-+		return -ENODEV;
-+	}
-+	pdata->ring_csr_addr = devm_ioremap_resource(dev, res);
-+	if (IS_ERR(pdata->ring_csr_addr)) {
-+		dev_err(dev, "Unable to retrieve ENET Ring CSR region\n");
-+		return PTR_ERR(pdata->ring_csr_addr);
-+	}
-+
-+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ring_cmd");
-+	if (!res) {
-+		dev_err(dev, "Resource ring_cmd not defined\n");
-+		return -ENODEV;
-+	}
-+	pdata->ring_cmd_addr = devm_ioremap_resource(dev, res);
-+	if (IS_ERR(pdata->ring_cmd_addr)) {
-+		dev_err(dev, "Unable to retrieve ENET Ring command region\n");
-+		return PTR_ERR(pdata->ring_cmd_addr);
-+	}
-+
-+	ret = platform_get_irq(pdev, 0);
-+	if (ret <= 0) {
-+		dev_err(dev, "Unable to get ENET Rx IRQ\n");
-+		ret = ret ? : -ENXIO;
-+		return ret;
-+	}
-+	pdata->rx_irq = ret;
-+
-+	mac = of_get_mac_address(dev->of_node);
-+	if (mac)
-+		memcpy(ndev->dev_addr, mac, ndev->addr_len);
-+	else
-+		eth_hw_addr_random(ndev);
-+	memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
-+
-+	pdata->phy_mode = of_get_phy_mode(pdev->dev.of_node);
-+	if (pdata->phy_mode < 0) {
-+		dev_err(dev, "Incorrect phy-connection-type in DTS\n");
-+		return -EINVAL;
-+	}
-+
-+	pdata->clk = devm_clk_get(&pdev->dev, NULL);
-+	ret = IS_ERR(pdata->clk);
-+	if (IS_ERR(pdata->clk)) {
-+		dev_err(&pdev->dev, "can't get clock\n");
-+		ret = PTR_ERR(pdata->clk);
-+		return ret;
-+	}
-+
-+	base_addr = pdata->base_addr;
-+	pdata->eth_csr_addr = base_addr + BLOCK_ETH_CSR_OFFSET;
-+	pdata->eth_ring_if_addr = base_addr + BLOCK_ETH_RING_IF_OFFSET;
-+	pdata->eth_diag_csr_addr = base_addr + BLOCK_ETH_DIAG_CSR_OFFSET;
-+	pdata->mcx_mac_addr = base_addr + BLOCK_ETH_MAC_OFFSET;
-+	pdata->mcx_stats_addr = base_addr + BLOCK_ETH_STATS_OFFSET;
-+	pdata->mcx_mac_csr_addr = base_addr + BLOCK_ETH_MAC_CSR_OFFSET;
-+	pdata->rx_buff_cnt = NUM_PKT_BUF;
-+
-+	return ret;
-+}
-+
-+static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
-+{
-+	struct net_device *ndev = pdata->ndev;
-+	struct xgene_enet_desc_ring *buf_pool;
-+	u16 dst_ring_num;
-+	int ret;
-+
-+	xgene_gmac_tx_disable(pdata);
-+	xgene_gmac_rx_disable(pdata);
-+
-+	ret = xgene_enet_create_desc_rings(ndev);
-+	if (ret) {
-+		netdev_err(ndev, "Error in ring configuration\n");
-+		return ret;
-+	}
-+
-+	/* setup buffer pool */
-+	buf_pool = pdata->rx_ring->buf_pool;
-+	xgene_enet_init_bufpool(buf_pool);
-+	ret = xgene_enet_refill_bufpool(buf_pool, pdata->rx_buff_cnt);
-+	if (ret)
-+		return ret;
-+
-+	dst_ring_num = xgene_enet_dst_ring_num(pdata->rx_ring);
-+	xgene_enet_cle_bypass(pdata, dst_ring_num, buf_pool->id);
-+
-+	return ret;
-+}
-+
-+static int xgene_enet_probe(struct platform_device *pdev)
-+{
-+	struct net_device *ndev;
-+	struct xgene_enet_pdata *pdata;
-+	struct device *dev = &pdev->dev;
-+	struct napi_struct *napi;
-+	int ret;
-+
-+	ndev = alloc_etherdev(sizeof(struct xgene_enet_pdata));
-+	if (!ndev)
-+		return -ENOMEM;
-+
-+	pdata = netdev_priv(ndev);
-+
-+	pdata->pdev = pdev;
-+	pdata->ndev = ndev;
-+	SET_NETDEV_DEV(ndev, dev);
-+	platform_set_drvdata(pdev, pdata);
-+	ndev->netdev_ops = &xgene_ndev_ops;
-+	xgene_enet_set_ethtool_ops(ndev);
-+	ndev->features |= NETIF_F_IP_CSUM |
-+			  NETIF_F_GSO |
-+			  NETIF_F_GRO;
-+
-+	ret = xgene_enet_get_resources(pdata);
-+	if (ret)
-+		goto err;
-+
-+	xgene_enet_reset(pdata);
-+	xgene_gmac_init(pdata, SPEED_1000);
-+
-+	spin_lock_init(&pdata->stats_lock);
-+	ret = register_netdev(ndev);
-+	if (ret) {
-+		netdev_err(ndev, "Failed to register netdev\n");
-+		goto err;
-+	}
-+
-+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
-+	if (ret) {
-+		netdev_err(ndev, "No usable DMA configuration\n");
-+		goto err;
-+	}
-+
-+	ret = xgene_enet_init_hw(pdata);
-+	if (ret)
-+		goto err;
-+
-+	napi = &pdata->rx_ring->napi;
-+	netif_napi_add(ndev, napi, xgene_enet_napi, NAPI_POLL_WEIGHT);
-+	ret = xgene_enet_mdio_config(pdata);
-+
-+	return ret;
-+err:
-+	free_netdev(ndev);
-+	return ret;
-+}
-+
-+static int xgene_enet_remove(struct platform_device *pdev)
-+{
-+	struct xgene_enet_pdata *pdata;
-+	struct net_device *ndev;
-+
-+	pdata = platform_get_drvdata(pdev);
-+	ndev = pdata->ndev;
-+
-+	xgene_gmac_rx_disable(pdata);
-+	xgene_gmac_tx_disable(pdata);
-+
-+	netif_napi_del(&pdata->rx_ring->napi);
-+	xgene_enet_mdio_remove(pdata);
-+	xgene_enet_delete_desc_rings(pdata);
-+	unregister_netdev(ndev);
-+	xgene_gport_shutdown(pdata);
-+	free_netdev(ndev);
-+
-+	return 0;
-+}
-+
-+static struct of_device_id xgene_enet_match[] = {
-+	{.compatible = "apm,xgene-enet",},
-+	{},
-+};
-+
-+MODULE_DEVICE_TABLE(of, xgene_enet_match);
-+
-+static struct platform_driver xgene_enet_driver = {
-+	.driver = {
-+		   .name = "xgene-enet",
-+		   .owner = THIS_MODULE,
-+		   .of_match_table = xgene_enet_match,
-+		   },
-+	.probe = xgene_enet_probe,
-+	.remove = xgene_enet_remove,
-+};
-+
-+module_platform_driver(xgene_enet_driver);
-+
-+MODULE_DESCRIPTION("APM X-Gene SoC Ethernet driver");
-+MODULE_VERSION(XGENE_DRV_VERSION);
-+MODULE_AUTHOR("Keyur Chudgar <kchudgar@apm.com>");
-+MODULE_LICENSE("GPL");
-diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
-new file mode 100644
-index 0000000..f4f7e4a
---- /dev/null
-+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
-@@ -0,0 +1,107 @@
-+/* Applied Micro X-Gene SoC Ethernet Driver
-+ *
-+ * Copyright (c) 2014, Applied Micro Circuits Corporation
-+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
-+ *	    Ravi Patel <rapatel@apm.com>
-+ *	    Keyur Chudgar <kchudgar@apm.com>
-+ *
-+ * This program is free software; you can redistribute  it and/or modify it
-+ * under  the terms of  the GNU General  Public License as published by the
-+ * Free Software Foundation;  either version 2 of the  License, or (at your
-+ * option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#ifndef __XGENE_ENET_MAIN_H__
-+#define __XGENE_ENET_MAIN_H__
-+
-+#include <linux/clk.h>
-+#include <linux/of_platform.h>
-+#include <linux/of_net.h>
-+#include <linux/of_mdio.h>
-+#include <linux/module.h>
-+#include <net/ip.h>
-+#include <linux/prefetch.h>
-+#include <linux/if_vlan.h>
-+#include <linux/phy.h>
-+#include "xgene_enet_hw.h"
-+
-+#define XGENE_DRV_VERSION	"v1.0"
-+#define XGENE_ENET_MAX_MTU	1536
-+#define SKB_BUFFER_SIZE		(XGENE_ENET_MAX_MTU - NET_IP_ALIGN)
-+#define NUM_PKT_BUF	64
-+#define NUM_BUFPOOL	32
-+
-+/* software context of a descriptor ring */
-+struct xgene_enet_desc_ring {
-+	struct net_device *ndev;
-+	u16 id;
-+	u16 num;
-+	u16 head;
-+	u16 tail;
-+	u16 slots;
-+	u16 irq;
-+	u32 size;
-+	u32 state[NUM_RING_CONFIG];
-+	void __iomem *cmd_base;
-+	void __iomem *cmd;
-+	dma_addr_t dma;
-+	u16 dst_ring_num;
-+	u8 nbufpool;
-+	struct sk_buff *(*rx_skb);
-+	struct sk_buff *(*cp_skb);
-+	enum xgene_enet_ring_cfgsize cfgsize;
-+	struct xgene_enet_desc_ring *cp_ring;
-+	struct xgene_enet_desc_ring *buf_pool;
-+	struct napi_struct napi;
-+	union {
-+		void *desc_addr;
-+		struct xgene_enet_raw_desc *raw_desc;
-+		struct xgene_enet_raw_desc16 *raw_desc16;
-+	};
-+};
-+
-+/* ethernet private data */
-+struct xgene_enet_pdata {
-+	struct net_device *ndev;
-+	struct mii_bus *mdio_bus;
-+	struct phy_device *phy_dev;
-+	int phy_speed;
-+	struct clk *clk;
-+	struct platform_device *pdev;
-+	struct xgene_enet_desc_ring *tx_ring;
-+	struct xgene_enet_desc_ring *rx_ring;
-+	char *dev_name;
-+	u32 rx_buff_cnt;
-+	u32 tx_qcnt_hi;
-+	u32 cp_qcnt_hi;
-+	u32 cp_qcnt_low;
-+	u32 rx_irq;
-+	void __iomem *eth_csr_addr;
-+	void __iomem *eth_ring_if_addr;
-+	void __iomem *eth_diag_csr_addr;
-+	void __iomem *mcx_mac_addr;
-+	void __iomem *mcx_stats_addr;
-+	void __iomem *mcx_mac_csr_addr;
-+	void __iomem *base_addr;
-+	void __iomem *ring_csr_addr;
-+	void __iomem *ring_cmd_addr;
-+	u32 phy_addr;
-+	int phy_mode;
-+	u32 speed;
-+	u16 rm;
-+	struct rtnl_link_stats64 stats;
-+	/* statistics lock */
-+	spinlock_t stats_lock;
-+};
-+
-+void xgene_enet_set_ethtool_ops(struct net_device *netdev);
-+
-+#endif /* __XGENE_ENET_MAIN_H__ */
 diff --git a/drivers/of/address.c b/drivers/of/address.c
 index e371825..5eaadae 100644
 --- a/drivers/of/address.c